JP4531714B2 - Detergent composition for batch-type annealed steel strip - Google Patents
Detergent composition for batch-type annealed steel strip Download PDFInfo
- Publication number
- JP4531714B2 JP4531714B2 JP2006098094A JP2006098094A JP4531714B2 JP 4531714 B2 JP4531714 B2 JP 4531714B2 JP 2006098094 A JP2006098094 A JP 2006098094A JP 2006098094 A JP2006098094 A JP 2006098094A JP 4531714 B2 JP4531714 B2 JP 4531714B2
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- JP
- Japan
- Prior art keywords
- steel strip
- component
- acid
- carbon atoms
- cleaning
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 229910000831 Steel Inorganic materials 0.000 title claims description 99
- 239000010959 steel Substances 0.000 title claims description 99
- 239000000203 mixture Substances 0.000 title claims description 66
- 239000003599 detergent Substances 0.000 title claims description 4
- 238000004140 cleaning Methods 0.000 claims description 85
- 125000004432 carbon atom Chemical group C* 0.000 claims description 50
- 238000000137 annealing Methods 0.000 claims description 47
- 238000000034 method Methods 0.000 claims description 34
- 150000001875 compounds Chemical class 0.000 claims description 24
- 230000008569 process Effects 0.000 claims description 23
- 125000000217 alkyl group Chemical group 0.000 claims description 19
- 239000002736 nonionic surfactant Substances 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 238000004519 manufacturing process Methods 0.000 claims description 12
- RGHNJXZEOKUKBD-SQOUGZDYSA-N Gluconic acid Natural products OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C(O)=O RGHNJXZEOKUKBD-SQOUGZDYSA-N 0.000 claims description 11
- 125000001931 aliphatic group Chemical group 0.000 claims description 11
- 229920006395 saturated elastomer Polymers 0.000 claims description 11
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 10
- 150000003839 salts Chemical class 0.000 claims description 10
- 239000003795 chemical substances by application Substances 0.000 claims description 9
- 125000002947 alkylene group Chemical group 0.000 claims description 8
- RGHNJXZEOKUKBD-UHFFFAOYSA-N D-gluconic acid Natural products OCC(O)C(O)C(O)C(O)C(O)=O RGHNJXZEOKUKBD-UHFFFAOYSA-N 0.000 claims description 6
- 125000002029 aromatic hydrocarbon group Chemical group 0.000 claims description 6
- 239000000174 gluconic acid Substances 0.000 claims description 6
- 235000012208 gluconic acid Nutrition 0.000 claims description 6
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 4
- 229910052783 alkali metal Inorganic materials 0.000 claims description 4
- 150000001340 alkali metals Chemical class 0.000 claims description 4
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 claims description 4
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 3
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 2
- 229910021529 ammonia Inorganic materials 0.000 claims description 2
- 125000006539 C12 alkyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 claims 1
- 150000001298 alcohols Chemical class 0.000 claims 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 18
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 16
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical group CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 14
- 239000002253 acid Substances 0.000 description 14
- 125000003342 alkenyl group Chemical group 0.000 description 14
- 239000007864 aqueous solution Substances 0.000 description 14
- 230000000694 effects Effects 0.000 description 11
- 239000003513 alkali Substances 0.000 description 10
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 9
- 239000002184 metal Substances 0.000 description 9
- 229910052751 metal Inorganic materials 0.000 description 9
- 125000006353 oxyethylene group Chemical group 0.000 description 9
- 238000005406 washing Methods 0.000 description 9
- 239000012459 cleaning agent Substances 0.000 description 8
- 239000000126 substance Substances 0.000 description 8
- 238000011156 evaluation Methods 0.000 description 7
- 239000003921 oil Substances 0.000 description 7
- 150000004671 saturated fatty acids Chemical class 0.000 description 7
- 239000000243 solution Substances 0.000 description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 6
- 230000009467 reduction Effects 0.000 description 6
- 235000021122 unsaturated fatty acids Nutrition 0.000 description 6
- 150000004670 unsaturated fatty acids Chemical class 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 239000002904 solvent Substances 0.000 description 5
- 239000002585 base Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- KHAVLLBUVKBTBG-UHFFFAOYSA-N dec-9-enoic acid Chemical compound OC(=O)CCCCCCCC=C KHAVLLBUVKBTBG-UHFFFAOYSA-N 0.000 description 4
- 238000005238 degreasing Methods 0.000 description 4
- 238000005191 phase separation Methods 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 159000000000 sodium salts Chemical class 0.000 description 4
- 238000003860 storage Methods 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000010960 cold rolled steel Substances 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- GHVNFZFCNZKVNT-UHFFFAOYSA-N decanoic acid Chemical compound CCCCCCCCCC(O)=O GHVNFZFCNZKVNT-UHFFFAOYSA-N 0.000 description 3
- 238000005187 foaming Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000007654 immersion Methods 0.000 description 3
- 239000000693 micelle Substances 0.000 description 3
- XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical compound [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 238000007711 solidification Methods 0.000 description 3
- 230000008023 solidification Effects 0.000 description 3
- 230000007928 solubilization Effects 0.000 description 3
- 238000005063 solubilization Methods 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 230000001629 suppression Effects 0.000 description 3
- 230000008719 thickening Effects 0.000 description 3
- 238000004065 wastewater treatment Methods 0.000 description 3
- YWWVWXASSLXJHU-AATRIKPKSA-N (9E)-tetradecenoic acid Chemical compound CCCC\C=C\CCCCCCCC(O)=O YWWVWXASSLXJHU-AATRIKPKSA-N 0.000 description 2
- QJRRBVNPIKYRQJ-UHFFFAOYSA-N 10-methylundecanoic acid Chemical compound CC(C)CCCCCCCCC(O)=O QJRRBVNPIKYRQJ-UHFFFAOYSA-N 0.000 description 2
- FRPZMMHWLSIFAZ-UHFFFAOYSA-N 10-undecenoic acid Chemical compound OC(=O)CCCCCCCCC=C FRPZMMHWLSIFAZ-UHFFFAOYSA-N 0.000 description 2
- XDOFQFKRPWOURC-UHFFFAOYSA-N 16-methylheptadecanoic acid Chemical compound CC(C)CCCCCCCCCCCCCCC(O)=O XDOFQFKRPWOURC-UHFFFAOYSA-N 0.000 description 2
- YIWUKEYIRIRTPP-UHFFFAOYSA-N 2-ethylhexan-1-ol Chemical compound CCCCC(CC)CO YIWUKEYIRIRTPP-UHFFFAOYSA-N 0.000 description 2
- XMIIGOLPHOKFCH-UHFFFAOYSA-N 3-phenylpropionic acid Chemical compound OC(=O)CCC1=CC=CC=C1 XMIIGOLPHOKFCH-UHFFFAOYSA-N 0.000 description 2
- FERIUCNNQQJTOY-UHFFFAOYSA-N Butyric acid Chemical compound CCCC(O)=O FERIUCNNQQJTOY-UHFFFAOYSA-N 0.000 description 2
- 239000005632 Capric acid (CAS 334-48-5) Substances 0.000 description 2
- QUSNBJAOOMFDIB-UHFFFAOYSA-N Ethylamine Chemical compound CCN QUSNBJAOOMFDIB-UHFFFAOYSA-N 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- BAVYZALUXZFZLV-UHFFFAOYSA-N Methylamine Chemical compound NC BAVYZALUXZFZLV-UHFFFAOYSA-N 0.000 description 2
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 2
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 125000003118 aryl group Chemical group 0.000 description 2
- HQABUPZFAYXKJW-UHFFFAOYSA-N butan-1-amine Chemical compound CCCCN HQABUPZFAYXKJW-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000002738 chelating agent Substances 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- IJKVHSBPTUYDLN-UHFFFAOYSA-N dihydroxy(oxo)silane Chemical compound O[Si](O)=O IJKVHSBPTUYDLN-UHFFFAOYSA-N 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- LQZZUXJYWNFBMV-UHFFFAOYSA-N dodecan-1-ol Chemical compound CCCCCCCCCCCCO LQZZUXJYWNFBMV-UHFFFAOYSA-N 0.000 description 2
- POULHZVOKOAJMA-UHFFFAOYSA-N dodecanoic acid Chemical compound CCCCCCCCCCCC(O)=O POULHZVOKOAJMA-UHFFFAOYSA-N 0.000 description 2
- ZQPPMHVWECSIRJ-MDZDMXLPSA-N elaidic acid Chemical compound CCCCCCCC\C=C\CCCCCCCC(O)=O ZQPPMHVWECSIRJ-MDZDMXLPSA-N 0.000 description 2
- KEMQGTRYUADPNZ-UHFFFAOYSA-N heptadecanoic acid Chemical compound CCCCCCCCCCCCCCCCC(O)=O KEMQGTRYUADPNZ-UHFFFAOYSA-N 0.000 description 2
- MNWFXJYAOYHMED-UHFFFAOYSA-N heptanoic acid Chemical compound CCCCCCC(O)=O MNWFXJYAOYHMED-UHFFFAOYSA-N 0.000 description 2
- IPCSVZSSVZVIGE-UHFFFAOYSA-N hexadecanoic acid Chemical compound CCCCCCCCCCCCCCCC(O)=O IPCSVZSSVZVIGE-UHFFFAOYSA-N 0.000 description 2
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 2
- FBUKVWPVBMHYJY-UHFFFAOYSA-N nonanoic acid Chemical compound CCCCCCCCC(O)=O FBUKVWPVBMHYJY-UHFFFAOYSA-N 0.000 description 2
- WWZKQHOCKIZLMA-UHFFFAOYSA-N octanoic acid Chemical compound CCCCCCCC(O)=O WWZKQHOCKIZLMA-UHFFFAOYSA-N 0.000 description 2
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 2
- WGYKZJWCGVVSQN-UHFFFAOYSA-N propylamine Chemical compound CCCN WGYKZJWCGVVSQN-UHFFFAOYSA-N 0.000 description 2
- 235000003441 saturated fatty acids Nutrition 0.000 description 2
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 239000011550 stock solution Substances 0.000 description 2
- 239000004094 surface-active agent Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- ZDPHROOEEOARMN-UHFFFAOYSA-N undecanoic acid Chemical compound CCCCCCCCCCC(O)=O ZDPHROOEEOARMN-UHFFFAOYSA-N 0.000 description 2
- NQPDZGIKBAWPEJ-UHFFFAOYSA-N valeric acid Chemical compound CCCCC(O)=O NQPDZGIKBAWPEJ-UHFFFAOYSA-N 0.000 description 2
- -1 γ-phenylacetic acid Chemical compound 0.000 description 2
- OBETXYAYXDNJHR-SSDOTTSWSA-M (2r)-2-ethylhexanoate Chemical compound CCCC[C@@H](CC)C([O-])=O OBETXYAYXDNJHR-SSDOTTSWSA-M 0.000 description 1
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 1
- ZVRMGCSSSYZGSM-CCEZHUSRSA-N (E)-hexadec-2-enoic acid Chemical compound CCCCCCCCCCCCC\C=C\C(O)=O ZVRMGCSSSYZGSM-CCEZHUSRSA-N 0.000 description 1
- SYQCXVKMCHQJPQ-VQHVLOKHSA-N (e)-3-methylnon-3-enoic acid Chemical compound CCCCC\C=C(/C)CC(O)=O SYQCXVKMCHQJPQ-VQHVLOKHSA-N 0.000 description 1
- BFHKYHMIVDBCPC-UHFFFAOYSA-N 1,3,5,7-tetrahydro-[1,3]oxazolo[3,4-c][1,3]oxazol-7a-ylmethanol Chemical compound C1OCN2COCC21CO BFHKYHMIVDBCPC-UHFFFAOYSA-N 0.000 description 1
- ZONJATNKKGGVSU-UHFFFAOYSA-N 14-methylpentadecanoic acid Chemical compound CC(C)CCCCCCCCCCCCC(O)=O ZONJATNKKGGVSU-UHFFFAOYSA-N 0.000 description 1
- DGMAZGHRQYFPHM-UHFFFAOYSA-N 2,2-dimethyldodecanoic acid Chemical compound CCCCCCCCCCC(C)(C)C(O)=O DGMAZGHRQYFPHM-UHFFFAOYSA-N 0.000 description 1
- OHCXJEYTMCSTGI-UHFFFAOYSA-N 2,3-dimethylnonanoic acid Chemical compound CCCCCCC(C)C(C)C(O)=O OHCXJEYTMCSTGI-UHFFFAOYSA-N 0.000 description 1
- YGGZZPLVHDSIQV-UHFFFAOYSA-N 2,3-dimethyloctanoic acid Chemical compound CCCCCC(C)C(C)C(O)=O YGGZZPLVHDSIQV-UHFFFAOYSA-N 0.000 description 1
- YAOGUJDXPSORMO-UHFFFAOYSA-N 2,4-dimethyldec-2-enoic acid Chemical compound CCCCCCC(C)C=C(C)C(O)=O YAOGUJDXPSORMO-UHFFFAOYSA-N 0.000 description 1
- OHVNJWXMFIBONR-UHFFFAOYSA-N 2,4-dimethyldodec-2-enoic acid Chemical compound CCCCCCCCC(C)C=C(C)C(O)=O OHVNJWXMFIBONR-UHFFFAOYSA-N 0.000 description 1
- GEHLKZFXBXCLPH-UHFFFAOYSA-N 2,5-dimethyltridec-2-enoic acid Chemical compound CCCCCCCCC(C)CC=C(C)C(O)=O GEHLKZFXBXCLPH-UHFFFAOYSA-N 0.000 description 1
- FDSHZORMVSUDBC-UHFFFAOYSA-N 2-(2-methylpropyl)hexanoic acid Chemical compound CCCCC(C(O)=O)CC(C)C FDSHZORMVSUDBC-UHFFFAOYSA-N 0.000 description 1
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 description 1
- FEUFEGJTJIHPOF-UHFFFAOYSA-N 2-butyl acrylic acid Chemical compound CCCCC(=C)C(O)=O FEUFEGJTJIHPOF-UHFFFAOYSA-N 0.000 description 1
- LLRWPRRWLFWMSA-UHFFFAOYSA-N 2-butyl-3-methylnonanoic acid Chemical compound CCCCCCC(C)C(C(O)=O)CCCC LLRWPRRWLFWMSA-UHFFFAOYSA-N 0.000 description 1
- WQIGUMGLMXARLE-UHFFFAOYSA-N 2-butyl-5-methylhexanoic acid Chemical compound CCCCC(C(O)=O)CCC(C)C WQIGUMGLMXARLE-UHFFFAOYSA-N 0.000 description 1
- KQYRYPXQPKPVSP-UHFFFAOYSA-N 2-butylhexanoic acid Chemical compound CCCCC(C(O)=O)CCCC KQYRYPXQPKPVSP-UHFFFAOYSA-N 0.000 description 1
- XKYIHXIVXPVMSG-UHFFFAOYSA-N 2-ethyl-3-methylnonanoic acid Chemical compound CCCCCCC(C)C(CC)C(O)=O XKYIHXIVXPVMSG-UHFFFAOYSA-N 0.000 description 1
- IPKIIZQGCWXJFM-UHFFFAOYSA-N 2-methyl-1-(4-nitrophenyl)sulfonylaziridine Chemical compound CC1CN1S(=O)(=O)C1=CC=C([N+]([O-])=O)C=C1 IPKIIZQGCWXJFM-UHFFFAOYSA-N 0.000 description 1
- JVAKNQLSBYBCSZ-VAWYXSNFSA-N 2-methyl-2-dodecenoic acid Chemical compound CCCCCCCCC\C=C(/C)C(O)=O JVAKNQLSBYBCSZ-VAWYXSNFSA-N 0.000 description 1
- LPJMWXBYVJOLSC-UHFFFAOYSA-N 2-methyldocosanoic acid Chemical compound CCCCCCCCCCCCCCCCCCCCC(C)C(O)=O LPJMWXBYVJOLSC-UHFFFAOYSA-N 0.000 description 1
- WLJVXDMOQOGPHL-PPJXEINESA-N 2-phenylacetic acid Chemical compound O[14C](=O)CC1=CC=CC=C1 WLJVXDMOQOGPHL-PPJXEINESA-N 0.000 description 1
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- QYYCCBRLFJBUBU-UHFFFAOYSA-N 3-methyldocosanoic acid Chemical compound CCCCCCCCCCCCCCCCCCCC(C)CC(O)=O QYYCCBRLFJBUBU-UHFFFAOYSA-N 0.000 description 1
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- PSGIGILMTSKVKI-UHFFFAOYSA-N 4,10-dimethyldodecanoic acid Chemical compound CCC(C)CCCCCC(C)CCC(O)=O PSGIGILMTSKVKI-UHFFFAOYSA-N 0.000 description 1
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- QKEWOHLCIUWVGM-UHFFFAOYSA-N 4,4-dimethyldecanoic acid Chemical compound CCCCCCC(C)(C)CCC(O)=O QKEWOHLCIUWVGM-UHFFFAOYSA-N 0.000 description 1
- OHIBXDUHUUPQTR-UHFFFAOYSA-N 4,7-dimethyloctanoic acid Chemical compound CC(C)CCC(C)CCC(O)=O OHIBXDUHUUPQTR-UHFFFAOYSA-N 0.000 description 1
- VZPIUNDOWLDCTC-UHFFFAOYSA-N 4,8-dimethylnonanoic acid Chemical compound CC(C)CCCC(C)CCC(O)=O VZPIUNDOWLDCTC-UHFFFAOYSA-N 0.000 description 1
- NMVKNKVTBWSUKU-UHFFFAOYSA-N 4-ethyl-2,2-dimethyloctanoic acid Chemical compound CCCCC(CC)CC(C)(C)C(O)=O NMVKNKVTBWSUKU-UHFFFAOYSA-N 0.000 description 1
- OJBXGBOOHHTYCO-UHFFFAOYSA-N 5,9-dimethyldec-2-enoic acid Chemical compound CC(C)CCCC(C)CC=CC(O)=O OJBXGBOOHHTYCO-UHFFFAOYSA-N 0.000 description 1
- FXHSJOKOEXARQR-UHFFFAOYSA-N 5-(bromomethyl)-3-(4-nitrophenyl)-1,2-oxazole Chemical compound C1=CC([N+](=O)[O-])=CC=C1C1=NOC(CBr)=C1 FXHSJOKOEXARQR-UHFFFAOYSA-N 0.000 description 1
- ROYFWQWGQUTENN-JXMROGBWSA-N 5-methyl-2-undecenoic acid Chemical compound CCCCCCC(C)C\C=C\C(O)=O ROYFWQWGQUTENN-JXMROGBWSA-N 0.000 description 1
- BYHDDXPKOZIZRV-UHFFFAOYSA-N 5-phenylpentanoic acid Chemical compound OC(=O)CCCCC1=CC=CC=C1 BYHDDXPKOZIZRV-UHFFFAOYSA-N 0.000 description 1
- NNNVXFKZMRGJPM-ZHACJKMWSA-N 7-Palmitoleic acid Chemical compound CCCCCCCCC\C=C\CCCCC(O)=O NNNVXFKZMRGJPM-ZHACJKMWSA-N 0.000 description 1
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 description 1
- URWLWLXGACJYCO-UHFFFAOYSA-N 9-phenylnonanoic acid Chemical compound OC(=O)CCCCCCCCC1=CC=CC=C1 URWLWLXGACJYCO-UHFFFAOYSA-N 0.000 description 1
- YWWVWXASSLXJHU-UHFFFAOYSA-N 9E-tetradecenoic acid Natural products CCCCC=CCCCCCCCC(O)=O YWWVWXASSLXJHU-UHFFFAOYSA-N 0.000 description 1
- 239000005635 Caprylic acid (CAS 124-07-2) Substances 0.000 description 1
- RPNUMPOLZDHAAY-UHFFFAOYSA-N Diethylenetriamine Chemical compound NCCNCCN RPNUMPOLZDHAAY-UHFFFAOYSA-N 0.000 description 1
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 description 1
- YYVJAABUJYRQJO-UHFFFAOYSA-N Isomyristic acid Natural products CC(C)CCCCCCCCCCC(O)=O YYVJAABUJYRQJO-UHFFFAOYSA-N 0.000 description 1
- 239000005639 Lauric acid Substances 0.000 description 1
- 239000005642 Oleic acid Substances 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 235000021314 Palmitic acid Nutrition 0.000 description 1
- 239000005643 Pelargonic acid Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 1
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 1
- 150000008044 alkali metal hydroxides Chemical class 0.000 description 1
- OBETXYAYXDNJHR-UHFFFAOYSA-N alpha-ethylcaproic acid Natural products CCCCC(CC)C(O)=O OBETXYAYXDNJHR-UHFFFAOYSA-N 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- 229910021538 borax Inorganic materials 0.000 description 1
- 150000001642 boronic acid derivatives Chemical class 0.000 description 1
- KDYFGRWQOYBRFD-NUQCWPJISA-N butanedioic acid Chemical compound O[14C](=O)CC[14C](O)=O KDYFGRWQOYBRFD-NUQCWPJISA-N 0.000 description 1
- 238000011088 calibration curve Methods 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- XSWSEQPWKOWORN-UHFFFAOYSA-N dodecan-2-ol Chemical compound CCCCCCCCCCC(C)O XSWSEQPWKOWORN-UHFFFAOYSA-N 0.000 description 1
- 238000004070 electrodeposition Methods 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000011086 high cleaning Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- FDSIFWDGJSJXMP-UHFFFAOYSA-N methyl 3-methyl-5-(5-methyl-1,2-oxazol-3-yl)-1,2-oxazole-4-carboxylate Chemical compound CC1=NOC(C2=NOC(C)=C2)=C1C(=O)OC FDSIFWDGJSJXMP-UHFFFAOYSA-N 0.000 description 1
- SAOSCTYRONNFTC-UHFFFAOYSA-N methyl-capric acid Natural products CCCCCCCCC(C)C(O)=O SAOSCTYRONNFTC-UHFFFAOYSA-N 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- WQEPLUUGTLDZJY-UHFFFAOYSA-N n-Pentadecanoic acid Natural products CCCCCCCCCCCCCCC(O)=O WQEPLUUGTLDZJY-UHFFFAOYSA-N 0.000 description 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- ZWLPBLYKEWSWPD-UHFFFAOYSA-N o-toluic acid Chemical compound CC1=CC=CC=C1C(O)=O ZWLPBLYKEWSWPD-UHFFFAOYSA-N 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 229960002446 octanoic acid Drugs 0.000 description 1
- SECPZKHBENQXJG-BQYQJAHWSA-N palmitelaidic acid Chemical compound CCCCCC\C=C\CCCCCCCC(O)=O SECPZKHBENQXJG-BQYQJAHWSA-N 0.000 description 1
- SECPZKHBENQXJG-FPLPWBNLSA-N palmitoleic acid Chemical compound CCCCCC\C=C/CCCCCCCC(O)=O SECPZKHBENQXJG-FPLPWBNLSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 235000021317 phosphate Nutrition 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 235000015320 potassium carbonate Nutrition 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000010731 rolling oil Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 150000003333 secondary alcohols Chemical class 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 239000001488 sodium phosphate Substances 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- 235000010339 sodium tetraborate Nutrition 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 125000005472 straight-chain saturated fatty acid group Chemical group 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- TUNFSRHWOTWDNC-HKGQFRNVSA-N tetradecanoic acid Chemical compound CCCCCCCCCCCCC[14C](O)=O TUNFSRHWOTWDNC-HKGQFRNVSA-N 0.000 description 1
- BSVBQGMMJUBVOD-UHFFFAOYSA-N trisodium borate Chemical compound [Na+].[Na+].[Na+].[O-]B([O-])[O-] BSVBQGMMJUBVOD-UHFFFAOYSA-N 0.000 description 1
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 1
- 229910000406 trisodium phosphate Inorganic materials 0.000 description 1
- 235000019801 trisodium phosphate Nutrition 0.000 description 1
- 229940005605 valeric acid Drugs 0.000 description 1
- 239000003021 water soluble solvent Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Landscapes
- Detergent Compositions (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Description
本発明は、バッチ式焼鈍鋼帯用洗浄剤組成物及び当該組成物を使用した洗浄工程を有する鋼帯製造方法に関する。 The present invention relates to a cleaning composition for batch-type annealed steel strip and a steel strip manufacturing method having a cleaning step using the composition.
鋼帯は、圧延時に発生、付着する圧延油、作動油、鉄粉、鉄石鹸等の汚れを洗浄する必要があり、その後、加工性を付与するための焼鈍に付される。ここに、焼鈍とは、焼きなまし又はアニーリングのことであり、一度適当な温度に加熱し、そこで保持したのち徐冷する(化学大辞典1巻P208(昭和56年))工程をいい、鉄または鋼の軟化、あるいは結晶組織の調整または内部応力の除去等を目的とする。 The steel strip needs to be cleaned of dirt such as rolling oil, hydraulic oil, iron powder, and iron soap generated and adhered during rolling, and then subjected to annealing for imparting workability. Here, annealing is annealing or annealing, and refers to the process of heating to a suitable temperature once, holding it there, and then gradually cooling (Chemical Dictionary 1 volume P208 (Showa 56)), iron or steel. The purpose is to soften the crystal, to adjust the crystal structure or to remove internal stress.
焼鈍方法には、バッチ式焼鈍及び連続式焼鈍があるが、このうち、バッチ式焼鈍においては、鋼帯の密着又は焼き付きの問題があり、歩留まり低下の一因となっている。 The annealing methods include batch annealing and continuous annealing. Among these, the batch annealing has a problem of adhesion or seizure of a steel strip, which contributes to a decrease in yield.
かかる密着を防止するのに、珪酸ナトリウムを含む洗浄剤を用いて電気分解洗浄(電解洗浄)をする場合、鋼帯表面に付着したシリコンが有効であることが知られている。 In order to prevent such adhesion, it is known that silicon deposited on the surface of the steel strip is effective when electrolytic cleaning (electrolytic cleaning) is performed using a cleaning agent containing sodium silicate.
特許文献1には、焼鈍工程等の後工程の前段で、金属表面に付着する油性物質等の汚れや金属粉等の汚れの除去に必要な濃縮化された特定配合のアルカリ洗浄剤が開示されている。また、特許文献2には、アルカリ基剤、界面活性剤及び特定の群から選ばれる化合物を含有する金属洗浄剤組成物が開示されている。また、特許文献3には、アルカリ剤、非イオン界面活性剤、可溶化剤を含有する、金属等の洗浄剤として有用なアルカリ性水溶液組成物が開示されている。
特許文献1は、アルカリ剤を高濃度で用いた懸濁状の洗浄剤に関するものであり、焼鈍用の密着低減効果を伴う洗浄剤として好適な態様の技術を開示するとは言い難い。しかも、実際に特許文献1の実施例の範囲でアルカリ剤を調製しようとすると、アルカリ剤の固化が甚だしく、実用に耐えないものとなることが判明した。このような特許文献1では、洗浄剤の安定性が充分で、且つ洗浄性及びバッチ式焼鈍後の鋼帯の密着度低減効果に優れたものは得られない。一方、特許文献2についても、洗浄性及びバッチ式焼鈍後の鋼帯の密着度低減効果については更なる向上が望まれる。また、特許文献3では、焼鈍前の鋼帯等の洗浄性と、バッチ式焼鈍後の鋼帯の密着度低減効果を両立させるという課題について何ら言及されていない。 Patent Document 1 relates to a suspension-type cleaning agent using an alkali agent at a high concentration, and it is difficult to say that it discloses a technique in a mode suitable as a cleaning agent having an adhesion reduction effect for annealing. Moreover, it was found that when an alkali agent was actually prepared within the range of the examples in Patent Document 1, the alkali agent was solidified and could not be put into practical use. In such Patent Document 1, it is not possible to obtain a cleaning agent that is sufficiently stable and that is excellent in cleaning properties and the effect of reducing the adhesion of a steel strip after batch annealing. On the other hand, with respect to Patent Document 2, further improvement is desired for the cleaning property and the effect of reducing the adhesion of the steel strip after batch annealing. In Patent Document 3, there is no mention of the problem of achieving both the cleanability of the steel strip before annealing and the effect of reducing the adhesion of the steel strip after batch annealing.
本発明の課題は、洗浄工程とバッチ式焼鈍を含む鋼帯の製造工程において、高い洗浄性とバッチ式焼鈍後の鋼帯の密着度を低減できるバッチ式焼鈍鋼帯用洗浄剤組成物及び当該組成物を使用した洗浄工程を有する鋼帯製造方法を提供することである。 An object of the present invention is to provide a cleaning composition for a batch-type annealed steel strip, which can reduce the degree of adhesion of the steel strip after the batch-type annealing and the high cleanability in the steel strip production process including the cleaning step and the batch-type annealing. It is providing the steel strip manufacturing method which has the washing | cleaning process which uses a composition.
本発明は、珪酸塩(a)〔以下、成分(a)という〕、グルコン酸及び/又はその塩(b)〔以下、成分(b)という〕、並びに水を含有するバッチ式焼鈍鋼帯用洗浄剤組成物に関する。 The present invention is for a batch-type annealed steel strip containing silicate (a) [hereinafter referred to as component (a)], gluconic acid and / or a salt thereof (b) [hereinafter referred to as component (b)], and water. The present invention relates to a cleaning composition.
また、本発明は、電解洗浄工程の後に、バッチ式焼鈍工程を有する鋼帯製造方法であって、上記本発明のバッチ式焼鈍鋼帯用洗浄剤組成物を電解洗浄工程で使用する鋼帯製造方法に関する。 Moreover, this invention is a steel strip manufacturing method which has a batch type annealing process after an electrolytic cleaning process, Comprising: Steel strip manufacture which uses the cleaning composition for batch type annealing steel strips of the said invention in an electrolytic cleaning process Regarding the method.
本発明によれば、洗浄工程とバッチ式焼鈍を含む鋼帯の製造工程において、高い洗浄性とバッチ式焼鈍後の鋼帯の密着度を低減できるバッチ式焼鈍鋼帯用洗浄剤組成物及び当該組成物を使用した洗浄工程を有する鋼帯製造方法を提供することができる。 According to the present invention, in a manufacturing process of a steel strip including a cleaning process and batch-type annealing, a cleaning composition for a batch-type annealed steel strip that can reduce high cleaning properties and adhesion of the steel strip after batch-type annealing, and the concerned The steel strip manufacturing method which has the washing | cleaning process using a composition can be provided.
本発明のバッチ式焼鈍鋼帯用洗浄剤組成物は、珪酸塩とグルコン酸及び/又はその塩との組み合わせを含有する組成物が、鋼帯の油脂や金属粉由来の汚れの洗浄性と焼鈍後の鋼帯の密着度低減につき、両立して特段に優れることを利用して完成された。 The cleaning composition for a batch-type annealed steel strip of the present invention is a composition containing a combination of silicate and gluconic acid and / or a salt thereof. It was completed by utilizing the fact that it was excellent at the same time for reducing the adhesion of the steel strip later.
[成分(a)]
本発明の組成物の成分(a)は、オルソ珪酸、メタ珪酸、セスキ珪酸等のナトリウム塩、カリウム塩等の珪酸塩であり、好ましくは、オルソ珪酸、メタ珪酸のナトリウム塩、カリウム塩であり、より好ましくはオルソ珪酸のナトリウム塩、カリウム塩であり、更に好ましくはこれらのナトリウム塩である。
[Component (a)]
The component (a) of the composition of the present invention is a silicate such as sodium salt or potassium salt such as orthosilicic acid, metasilicic acid or sesquisilicic acid, preferably orthosilicate or sodium salt or potassium salt of metasilicic acid. More preferred are sodium salt and potassium salt of orthosilicic acid, and more preferred are these sodium salts.
珪酸塩は、鋼帯用洗浄剤組成物をアルカリ性にして、鋼帯上の油性物質等の汚れや金属粉等の汚れの除去をし、同時に、後述するグルコン酸及び/又はその塩との組合せによる作用により、バッチ式焼鈍後の鋼帯の密着度を低減する。 Silicate makes the cleaning composition for steel strip alkaline, and removes dirt such as oily substances and metal powder on the steel strip, and at the same time combined with gluconic acid and / or a salt thereof described later. Due to the action, the degree of adhesion of the steel strip after batch annealing is reduced.
[成分(b)]
本発明の組成物の成分(b)は、グルコン酸及び/又はその塩である。成分(b)は、前述の珪酸塩との組合せによる作用により、鋼帯上の油性物質等の汚れや金属粉等の汚れの除去をさらに促進する。
[Component (b)]
Component (b) of the composition of the present invention is gluconic acid and / or a salt thereof. The component (b) further promotes the removal of dirt such as oily substances on the steel strip and dirt such as metal powder by the action of the combination with the silicate described above.
[バッチ式焼鈍鋼帯用洗浄剤組成物]
本発明の鋼帯用洗浄剤組成物は、溶媒として水道水、イオン交換水、工業用水等を使用し、本発明の効果を損なわない範囲で、低級アルコール等の有機水溶性溶媒を使用してもよい。
[Cleaning composition for batch-type annealed steel strip]
The steel band cleaning composition of the present invention uses tap water, ion exchange water, industrial water, etc. as a solvent, and uses an organic water-soluble solvent such as a lower alcohol as long as the effects of the present invention are not impaired. Also good.
[成分(c)]
本発明の組成物は、成分(a)と成分(b)とが、分相析出せずに、安定であることから、水溶液であることが好ましく、且つ水溶液に流動性があることは、洗浄槽に安定均一に洗浄成分を供給できること、及び洗浄性と焼鈍後の鋼帯の密着度低減という所望の効果を発現することから、好ましい。成分(a)及び成分(b)を含有する水溶液を得るために、本発明の組成物は、成分(c)として、下記一般式(1)〜(3)で表される化合物から選ばれる少なくとも1種以上を含有することが好ましい。
[Component (c)]
The composition of the present invention is preferably an aqueous solution because the component (a) and the component (b) are stable without phase separation and the aqueous solution is fluid. It is preferable because the cleaning component can be stably and uniformly supplied to the tank, and the desired effects of detergency and reduction of the adhesion of the steel strip after annealing are exhibited. In order to obtain an aqueous solution containing the component (a) and the component (b), the composition of the present invention is at least selected from compounds represented by the following general formulas (1) to (3) as the component (c). It is preferable to contain 1 or more types.
R1−X−(CH2)mCOOM1 (1)
R2−COOM2 (2)
R3−COOM3 (3)
〔式中、R1は炭素数4〜22の飽和もしくは不飽和の直鎖もしくは分岐鎖の脂肪族炭化水素基又は炭素数5〜18の芳香族炭化水素基を示し、Xは基 >NH、>N(CH2)nCOOM1又は>CHCOOM1を示す。R2は炭素数3〜22の飽和もしくは不飽和の直鎖の脂肪族炭化水素基又は炭素数5〜18の芳香族炭化水素基を示す。R3は炭素数4〜22の飽和もしくは不飽和の分岐鎖の脂肪族炭化水素基を示す。M1、M2、M3はそれぞれ水素原子、アルカリ金属、炭素数1〜4の脂肪族アミン、アンモニア又はアルカノールアミンを示し、m及びnはそれぞれ1〜3の整数を示す。〕
R 1 —X— (CH 2 ) m COOM 1 (1)
R 2 -COOM 2 (2)
R 3 -COOM 3 (3)
[Wherein, R 1 represents a saturated or unsaturated linear or branched aliphatic hydrocarbon group having 4 to 22 carbon atoms or an aromatic hydrocarbon group having 5 to 18 carbon atoms, and X represents a group> NH, > N (CH 2 ) n COOM 1 or> CHCOOM 1 R 2 represents a saturated or unsaturated linear aliphatic hydrocarbon group having 3 to 22 carbon atoms or an aromatic hydrocarbon group having 5 to 18 carbon atoms. R 3 represents a saturated or unsaturated branched aliphatic hydrocarbon group having 4 to 22 carbon atoms. M 1 , M 2 and M 3 each represent a hydrogen atom, an alkali metal, an aliphatic amine having 1 to 4 carbon atoms, ammonia or an alkanolamine, and m and n each represent an integer of 1 to 3. ]
一般式(1)において、R1は炭素数5〜18の飽和もしくは不飽和の直鎖もしくは分岐鎖の脂肪族炭化水素基又は炭素数5〜18の芳香族炭化水素基が好ましく、炭素数6〜12の飽和もしくは不飽和の直鎖もしくは分岐鎖の脂肪族炭化水素基がより好ましい。一般式(1)で表される化合物〔以下、成分(c−1)という〕としては、R1が炭素数5〜17のアルキル基もしくはアルケニル基、又はフェニル基、Xが>NH又は>N(CH2)nCOOM1、m及びnがそれぞれ1〜3の整数であるものが好ましい。具体的には、次のようなものが例示される。下記例示の化合物の中では、i−C8H17基を有する化合物、n−C12H25基を有する化合物がより好ましい。 In the general formula (1), R 1 is preferably a saturated or unsaturated linear or branched aliphatic hydrocarbon group having 5 to 18 carbon atoms or an aromatic hydrocarbon group having 5 to 18 carbon atoms, and has 6 carbon atoms. More preferred are -12 saturated or unsaturated linear or branched aliphatic hydrocarbon groups. As the compound represented by the general formula (1) [hereinafter referred to as component (c-1)], R 1 is an alkyl group or alkenyl group having 5 to 17 carbon atoms, or a phenyl group, and X is> NH or> N. (CH 2 ) n COOM 1 , m and n are each preferably an integer of 1 to 3. Specifically, the following is exemplified. Among the compounds exemplified below, compounds having an i-C 8 H 17 group and compounds having an n-C 12 H 25 group are more preferred.
〔式中、M1は前記と同じ意味を示す。〕 [Wherein, M 1 has the same meaning as described above. ]
一般式(2)において、R2は炭素数4〜12の飽和もしくは不飽和の直鎖の脂肪族炭化水素基又は炭素数5〜18の芳香族炭化水素基が好ましく、炭素数4〜12の飽和もしくは不飽和の直鎖の脂肪族炭化水素基がより好ましい。一般式(2)で表される化合物〔以下、成分(c−2)という〕としては、炭素数4〜23の直鎖飽和脂肪酸もしくは直鎖不飽和脂肪酸、又は芳香族基を有する炭素数6〜19のカルボン酸又はこれらの塩である。直鎖飽和脂肪酸の例として、カプロン酸、エナント酸、カプリル酸、ペラルゴン酸、カプリン酸、ウンデカン酸、ラウリン酸、ミリスチン酸、パルミチン酸、マルガリン酸、ステアリン酸、酪酸、吉草酸等が挙げられる。直鎖不飽和脂肪酸の例として、カプロレイン酸、オレイン酸、9−ウンデシレン酸、エライジン酸、10−ウンデシレン酸、2−ラウロレイン酸、パセニン酸、リンデル酸、トウハク酸、5−ラウロレイン酸、11−ラウロレイン酸、2−パルミトレイン酸、7−パルミトレイン酸、cis−9−パルミトレイン酸、ゾーマリン酸、trans−9−パルミトレイン酸、ツズ酸、5−ミリストレイン酸、ミリストレイン酸、ペトロセリン酸、ペトロセニライジン酸等が挙げられる。芳香族基を有するカルボン酸として、フェニル酢酸、β−フェニルプロピオン酸、γ−フェニル酢酸、δ−フェニル吉草酸、τ−フェニルカプロン酸、ζ−フェニルエナトン酸、η−フェニルカプリル酸、θ−フェニルペラルゴン酸、ι−フェニルカプリン酸、ナフテン酸およびトルイル酸等が挙げられる。 In the general formula (2), R 2 is preferably a saturated or unsaturated linear aliphatic hydrocarbon group having 4 to 12 carbon atoms or an aromatic hydrocarbon group having 5 to 18 carbon atoms, and having 4 to 12 carbon atoms. A saturated or unsaturated linear aliphatic hydrocarbon group is more preferred. The compound represented by the general formula (2) [hereinafter referred to as component (c-2)] is a straight-chain saturated fatty acid or straight-chain unsaturated fatty acid having 4 to 23 carbon atoms, or carbon atoms having an aromatic group. -19 carboxylic acids or salts thereof. Examples of linear saturated fatty acids include caproic acid, enanthic acid, caprylic acid, pelargonic acid, capric acid, undecanoic acid, lauric acid, myristic acid, palmitic acid, margaric acid, stearic acid, butyric acid, valeric acid and the like. Examples of linear unsaturated fatty acids include caproleic acid, oleic acid, 9-undecylenic acid, elaidic acid, 10-undecylenic acid, 2-laurolenic acid, pasenic acid, lindelic acid, succinic acid, 5-lauroleic acid, 11-laurolein Acid, 2-palmitoleic acid, 7-palmitoleic acid, cis-9-palmitoleic acid, zomarinic acid, trans-9-palmitoleic acid, tuzuic acid, 5-myristoleic acid, myristoleic acid, petrothelinic acid, petroceniridine acid Etc. As the carboxylic acid having an aromatic group, phenylacetic acid, β-phenylpropionic acid, γ-phenylacetic acid, δ-phenylvaleric acid, τ-phenylcaproic acid, ζ-phenylenatonic acid, η-phenylcaprylic acid, θ- Examples include phenyl pelargonic acid, ι-phenyl capric acid, naphthenic acid and toluic acid.
これらの中では、炭素数4〜18の直鎖飽和脂肪酸もしくは直鎖不飽和脂肪酸又はそれらの塩が好ましく、炭素数4〜12の直鎖飽和脂肪酸が特に好ましい。 Among these, a linear saturated fatty acid having 4 to 18 carbon atoms or a linear unsaturated fatty acid or a salt thereof is preferable, and a linear saturated fatty acid having 4 to 12 carbon atoms is particularly preferable.
一般式(3)において、R3は炭素数4〜12の飽和もしくは不飽和の分岐鎖の脂肪族炭化水素基が好ましい。一般式(3)で表される化合物〔以下、成分(c−3)という〕としては、炭素数5〜23の分岐鎖飽和脂肪酸もしくは分岐鎖不飽和脂肪酸又はこれらの塩である。分岐鎖飽和脂肪酸の例として、2−エチルヘキサン酸、イソパルミチン酸、イソステアリン酸、ネオヘプタン酸、2−ブチル−5−メチルペンタン酸、2−イソブチル−5−メチルペンタン酸、4,6−ジメチルオクタン酸、4,7−ジメチルオクタン酸、2,3−ジメチルオクタン酸、2,3−ジメチルノナン酸、4,8−ジメチルノナン酸、2−ブチル−5−メチルヘキサン酸、2−メチルウンデカン酸、10−メチルウンデカン酸、4,4−ジメチルデカン酸、2−エチル−3−メチルノナン酸、2,2−ジメチル−4−エチルオクタン酸、2−メチルドコサン酸、3−メチルドコサン酸、(+)−3D−メチルドコサン酸、2−プロピル−3−メチルノナン酸、12−メチルトリデカン酸、2,2−ジメチルドデカン酸、2,3−ジメチルドデカン酸、4,10−ジメチルドデカン酸、2−ブチル−3−メチルノナン酸等が挙げられる。分岐鎖不飽和脂肪酸の例として、trans−2−メチル−2−ペンテン酸、trans−4−メチル−3−ペンテン酸、cis−2−メチル−2−ヘキセン酸、trans−2−メチル−2−ヘキセン酸、2−メチレン−ヘキサン酸、3,4−ジメチル−3−ペンテン酸、trans−2−メチル−2−ヘプテン酸、3−メチル−2−ノネン酸、3−メチル−3−ノネン酸、5−メチル−2−ウンデセン酸、2,4−ジメチル−2−デセン酸、5,9−ジメチル−2−デセン酸、2−メチル−2−ドデセン酸、(−)−5−メチル−2−トリデセン酸、L(+)−2,4−ジメチル−2−ドデセン酸、L(+)−2,5−ジメチル−2−トリデセン酸等が挙げられる。 In the general formula (3), R 3 is preferably a saturated or unsaturated branched aliphatic hydrocarbon group having 4 to 12 carbon atoms. The compound represented by the general formula (3) [hereinafter referred to as component (c-3)] is a branched saturated fatty acid or branched unsaturated fatty acid having 5 to 23 carbon atoms or a salt thereof. Examples of branched chain saturated fatty acids include 2-ethylhexanoic acid, isopalmitic acid, isostearic acid, neoheptanoic acid, 2-butyl-5-methylpentanoic acid, 2-isobutyl-5-methylpentanoic acid, 4,6-dimethyloctane Acid, 4,7-dimethyloctanoic acid, 2,3-dimethyloctanoic acid, 2,3-dimethylnonanoic acid, 4,8-dimethylnonanoic acid, 2-butyl-5-methylhexanoic acid, 2-methylundecanoic acid, 10-methylundecanoic acid, 4,4-dimethyldecanoic acid, 2-ethyl-3-methylnonanoic acid, 2,2-dimethyl-4-ethyloctanoic acid, 2-methyldocosanoic acid, 3-methyldocosanoic acid, (+)-3D -Methyldocosanoic acid, 2-propyl-3-methylnonanoic acid, 12-methyltridecanoic acid, 2,2-dimethyldodecanoic acid, 2,3-di- Chirudodekan acid, 4,10-dimethyl dodecanoic acid, and 2-butyl-3-methylnonanoic acid. Examples of branched chain unsaturated fatty acids include trans-2-methyl-2-pentenoic acid, trans-4-methyl-3-pentenoic acid, cis-2-methyl-2-hexenoic acid, trans-2-methyl-2- Hexenoic acid, 2-methylene-hexanoic acid, 3,4-dimethyl-3-pentenoic acid, trans-2-methyl-2-heptenoic acid, 3-methyl-2-nonenoic acid, 3-methyl-3-nonenoic acid, 5-methyl-2-undecenoic acid, 2,4-dimethyl-2-decenoic acid, 5,9-dimethyl-2-decenoic acid, 2-methyl-2-dodecenoic acid, (−)-5-methyl-2- Examples include tridecenoic acid, L (+)-2,4-dimethyl-2-dodecenoic acid, L (+)-2,5-dimethyl-2-tridecenoic acid, and the like.
これらの中では、炭素数5〜18の分岐鎖飽和脂肪酸もしくは分岐鎖不飽和脂肪酸又はそれらの塩が好ましく、炭素数5〜12の分岐鎖飽和脂肪酸が特に好ましい。 In these, a C5-C18 branched saturated fatty acid or branched unsaturated fatty acid, or those salts are preferable, and a C5-C12 branched saturated fatty acid is especially preferable.
一般式(1)〜(3)において、M1、M2、M3で示されるアルカリ金属としては、カリウム、ナトリウム等、炭素数1〜4の脂肪族アミンとしては、メチルアミン、エチルアミン、プロピルアミン、ブチルアミン、エチレンジアミン、ジエチレントリアミン等、アルカノールアミンとしては、モノエタノールアミン、ジエタノールアミン、トリエタノールアミン、他の炭素数2〜10のアルカノールアミン等が挙げられる。M1、M2、M3としては、水素原子、アルカリ金属が好ましい。 In the general formula (1) to (3), the alkali metal represented by M 1, M 2, M 3, potassium, sodium, etc., the aliphatic amine having 1 to 4 carbon atoms, methylamine, ethylamine, propylamine Examples of alkanolamines such as amine, butylamine, ethylenediamine, and diethylenetriamine include monoethanolamine, diethanolamine, triethanolamine, and other alkanolamines having 2 to 10 carbon atoms. M 1 , M 2 and M 3 are preferably a hydrogen atom or an alkali metal.
本発明の成分(c)は、アルカリ水溶液中への非イオン界面活性剤の可溶化の観点から、成分(c−1)を必須とし、生産性及びさらに安定な可溶化の観点から、成分(c−2)又は成分(c−3)を組み合わせることが好ましい。このような観点から、成分(c−1)と、成分(c−2)又は成分(c−3)を組み合わせる場合の重量比(c−1)/(c−2)又は(c−1)/(c−3)は、0.1/1〜70/1が好ましく、0.4/1〜50/1がより好ましく、0.7/1〜30/1が更に好ましい。 The component (c) of the present invention comprises the component (c-1) from the viewpoint of solubilization of the nonionic surfactant in the alkaline aqueous solution, and from the viewpoint of productivity and more stable solubilization, the component (c) It is preferable to combine c-2) or component (c-3). From such a viewpoint, the weight ratio (c-1) / (c-2) or (c-1) in the case of combining the component (c-1) with the component (c-2) or the component (c-3) / (C-3) is preferably 0.1 / 1 to 70/1, more preferably 0.4 / 1 to 50/1, and still more preferably 0.7 / 1 to 30/1.
本発明においては、成分(c−1)を必須とし、成分(c−2)又は成分(c−3)を配合することにより、少量の使用量で、アルカリ水溶液中への非イオン界面活性剤の可溶化を実現することができる。アルカリ水溶液中への非イオン界面活性剤の可溶化は、親水性の低下した非イオン界面活性剤に、親水性の高い成分(c−1)が配向し、棚層ミセルを作ることで可溶化していると推定される。しかし、耐塩基性に優れる成分(c−1)の溶解量が多く、効率的にミセル形成に寄与できていないと推定されることから、アルカリ水溶液中での溶解度が低い成分(c−2)又は(c−3)を併用し、成分(c−1)へ配向させることにより効率的に混合ミセルが形成され、成分(c−1)の使用量の削減が可能になると考えられる。 In the present invention, the component (c-1) is essential, and the component (c-2) or the component (c-3) is blended, so that the nonionic surfactant into the alkaline aqueous solution can be used in a small amount. Can be solubilized. Solubilization of nonionic surfactant in alkaline aqueous solution is solubilized by making shelf-layer micelles by orienting highly hydrophilic component (c-1) to nonionic surfactant with reduced hydrophilicity. It is estimated that However, since it is estimated that the component (c-1) having excellent base resistance is dissolved in a large amount and cannot efficiently contribute to micelle formation, the component (c-2) having low solubility in an alkaline aqueous solution. Alternatively, it is considered that mixed micelles are efficiently formed by using (c-3) together and orienting to component (c-1), and the amount of component (c-1) used can be reduced.
水溶液からなる本発明の組成物は組成物温度50℃以上で、特に成分(c)を含有するものは組成物温度が低温(40〜50℃)で、安定に保存でき、かかる保存後にも、高い洗浄性とバッチ式焼鈍後の鋼帯の密着度を低減できるため、より好ましい。 The composition of the present invention consisting of an aqueous solution has a composition temperature of 50 ° C. or higher, particularly those containing the component (c) can be stably stored at a low composition temperature (40 to 50 ° C.). It is more preferable because it can reduce the degree of adhesion of the steel strip after high cleanability and batch-type annealing.
[成分(d)]
本発明の組成物は、成分(d)として、炭素数4〜24のアルコール、好ましくは炭素数4〜24の1価アルコールのアルキレンオキサイド付加物、及びアルキル(アルキル基の炭素数5〜12)フェノールのアルキレンオキサイド付加物から選ばれる一種以上である非イオン界面活性剤を含有することが好ましい。
[Component (d)]
The composition of the present invention comprises, as component (d), an alkylene oxide adduct of an alcohol having 4 to 24 carbon atoms, preferably a monohydric alcohol having 4 to 24 carbon atoms, and an alkyl (carbon group having 5 to 12 carbon atoms). It is preferable to contain one or more nonionic surfactants selected from phenol alkylene oxide adducts.
成分(d)は、鋼帯表面の油成分、鋼帯上の油性物質等の汚れや金属粉等の汚れ又はその由来汚物を、剥離し再凝集を抑止する効果を強化する。 Ingredient (d) reinforces the effect of exfoliating and inhibiting reaggregation of oil components on the steel strip surface, dirt such as oily substances on the steel strip, dirt such as metal powder, or soils derived therefrom.
成分(d)は、中でも、炭素数4〜24のアルコール、更に、炭素数4〜24の1価アルコールのアルキレンオキサイド付加物が好ましい。 Among these, the component (d) is preferably an alkylene oxide adduct of a C 4-24 alcohol, and further a C 4-24 monohydric alcohol.
成分(d)としては、デイビス(Davies)法によるHLBが4.3〜8.2、更に5〜7.9のものが好ましい。 Component (d) is preferably one having an HLB of 4.3 to 8.2, more preferably 5 to 7.9, as determined by the Davis method.
なお、成分(d)のHLBは、デイビス(Davies)法によるHLBで、下記式により表される値であり、下記式中の親水基の基数、親油基の基数は、「新版 界面活性剤ハンドブック」、工学図書株式会社、平成8年5月1日、235頁の表5−1−3に記載されている値を採用する。
HLB=Σ〔成分(d)の親水基の基数〕+Σ〔成分(d)の親油基の基数〕+7
In addition, HLB of a component (d) is HLB by the Davis (Davies) method, and is a value represented by the following formula, and the number of hydrophilic groups and the number of lipophilic groups in the following formula are “new surface active agent” The values described in Table 5-1-3 on page 235 of “Handbook”, Engineering Books Co., Ltd., May 1, 1996 are adopted.
HLB = Σ [base number of hydrophilic group of component (d)] + Σ [base number of lipophilic group of component (d)] + 7
成分(d)のうち、炭素数4〜24のアルコールのアルキレンオキサイド付加物としては、下記一般式(I)〜(V)で表される化合物から選ばれる非イオン界面活性剤が挙げられる。 Among the component (d), examples of the alkylene oxide adduct of alcohol having 4 to 24 carbon atoms include nonionic surfactants selected from compounds represented by the following general formulas (I) to (V).
R1O-<EOn/POm>-H (I)
R2O-(EO)x1-(PO)y1-(EO)x2-H (II)
R3O-[EOx3/POy2]-(EO)x4-H (III)
R4O-(EO)x5-[EOx6/POy3]-(PO)y4-[EOx7/POy5]-(EO)x8-H (IV)
R5O-(EO)z-H (V)
〔式中、EOはオキシエチレン基、POはオキシプロピレン基を示す。R1は炭素数4〜14の直鎖又は分岐鎖のアルキル基又はアルケニル基、nはオキシエチレン基の平均付加モル数、mはオキシプロピレン基の平均付加モル数を表し、nは0〜20、mは0超20以下の数である。R2、R3及びR4はそれぞれ独立に炭素数6〜24の直鎖又は分岐鎖のアルキル基又はアルケニル基を示し、x1, x2, x3, x4, x5, x6, x7及びx8はエチレンオキサイドの平均付加モル数を示す数で、x1, x2, x3, x4, x5及びx8はそれぞれ1以上の数、x1+x2≧4、x3+x4≧4、x5+x6+x7+x8≧4、x6+x7≧1である。y1, y2, y3, y4及びy5はプロピレンオキサイドの平均付加モル数を示す数で、0<y1<x1+x2、0<y2<x3+x4、y3+y5≧0.1、y3≧0、y4≧0、y5≧0、y3+y4+y5<x5+x6+x7+x8である。また、< >で囲まれた部分はランダム付加でもブロック付加でもよいことを、[ ]で囲まれた部分はランダム付加、( )で囲まれた部分はブロック付加であることを示す。R5は炭素数5〜18の直鎖又は分岐鎖のアルキル基又はアルケニル基、zはオキシエチレン基の平均付加モル数を示す1〜20の数である。〕
R 1 O- <EO n / PO m > -H (I)
R 2 O- (EO) x1- (PO) y1- (EO) x2 -H (II)
R 3 O- [EO x3 / PO y2 ]-(EO) x4 -H (III)
R 4 O- (EO) x5- [EO x6 / PO y3 ]-(PO) y4- [EO x7 / PO y5 ]-(EO) x8 -H (IV)
R 5 O- (EO) z -H (V)
[Wherein, EO represents an oxyethylene group, and PO represents an oxypropylene group. R 1 is a linear or branched alkyl group or alkenyl group having 4 to 14 carbon atoms, n is an average addition mole number of an oxyethylene group, m is an average addition mole number of an oxypropylene group, and n is 0 to 20 , M is a number from 0 to 20 inclusive. R 2 , R 3 and R 4 each independently represents a linear or branched alkyl or alkenyl group having 6 to 24 carbon atoms, and x1, x2, x3, x4, x5, x6, x7 and x8 are ethylene oxide. X1, x2, x3, x4, x5 and x8 are numbers of 1 or more, x1 + x2 ≧ 4, x3 + x4 ≧ 4, x5 + x6 + x7 + x8 ≧ 4, and x6 + x7 ≧ 1. y1, y2, y3, y4 and y5 are numbers indicating the average added mole number of propylene oxide, and 0 <y1 <x1 + x2, 0 <y2 <x3 + x4, y3 + y5 ≧ 0.1, y3 ≧ 0, y4 ≧ 0, y5 ≧ 0, y3 + y4 + y5 <x5 + x6 + x7 + x8. Further, the portion surrounded by <> may be random addition or block addition, the portion surrounded by [] indicates random addition, and the portion surrounded by () indicates block addition. R 5 is a linear or branched alkyl group or alkenyl group having 5 to 18 carbon atoms, and z is a number of 1 to 20 indicating the average number of moles of oxyethylene group added. ]
一般式(I)において、R1は炭素数4〜14の直鎖又は分岐鎖のアルキル基又はアルケニル基であり、直鎖の場合より好ましくはR1は炭素数6〜10、分岐鎖の場合より好ましくはR1は炭素数8〜14である。nはオキシエチレン基の平均付加モル数、mはオキシプロピレン基の平均付加モル数を表し、0≦n≦20、0<m≦20である。かかる非イオン界面活性剤は、デイビス(Davies)法によるHLBが4.3〜8.2、更に5〜7.9のものが好ましい。HLBがこの範囲にあると浸透性と乳化性のバランスがよく、良好な脱脂性が得られる。 In the general formula (I), R 1 is a linear or branched alkyl group or alkenyl group having 4 to 14 carbon atoms, and more preferably R 1 is a straight chain or branched chain group having 6 to 10 carbon atoms. More preferably, R 1 has 8 to 14 carbon atoms. n represents the average addition mole number of the oxyethylene group, m represents the average addition mole number of the oxypropylene group, and 0 ≦ n ≦ 20 and 0 <m ≦ 20. Such nonionic surfactants are preferably those having an HLB of 4.3 to 8.2, more preferably 5 to 7.9, as determined by the Davis method. When the HLB is in this range, the balance between permeability and emulsification is good, and good degreasing properties are obtained.
なお、一般式(I)で表される非イオン界面活性剤において、オキシエチレン、オキシプロピレンの付加形態はブロックでもランダムでもよく、ブロックの場合はオキシエチレンとオキシプロピレンの位置が逆でも良い。しかしオキシプロピレン−オキシエチレンの順番でR1Oにブロック付加したものがより好ましい。 In the nonionic surfactant represented by the general formula (I), the addition form of oxyethylene and oxypropylene may be block or random, and in the case of block, the positions of oxyethylene and oxypropylene may be reversed. However, the block addition of R 1 O in the order of oxypropylene-oxyethylene is more preferable.
一般式(I)で表される化合物において、オキシエチレン基及びオキシプロピレン基の好ましい平均付加モル数は、0≦n<8、且つ0<m<5であり、3<n<8であることがより好ましい。 In the compound represented by the general formula (I), preferred average addition moles of the oxyethylene group and the oxypropylene group are 0 ≦ n <8 and 0 <m <5, and 3 <n <8. Is more preferable.
一般式(II)〜(IV)において、R2、R3及びR4は、洗浄性の観点から、炭素数6〜24の直鎖又は分岐鎖のアルキル基又はアルケニル基であり、好ましくは炭素数8〜20の直鎖又は分岐鎖のアルキル基又はアルケニル基であり、更に好ましくは炭素数10〜18の直鎖又は分岐鎖のアルキル基又はアルケニル基であり、特に好ましくは炭素数10〜16の直鎖又は分岐鎖のアルキル基又はアルケニル基である。 In the general formulas (II) to (IV), R 2 , R 3 and R 4 are each a straight or branched alkyl group or alkenyl group having 6 to 24 carbon atoms, preferably carbon. A linear or branched alkyl group or alkenyl group having 8 to 20 carbon atoms, more preferably a linear or branched alkyl group or alkenyl group having 10 to 18 carbon atoms, and particularly preferably 10 to 16 carbon atoms. A linear or branched alkyl group or alkenyl group.
一般式(II)で表される化合物において、エチレンオキサイドの平均付加モル数を示すx1及びx2はそれぞれ1以上の数であり、水との相溶性の観点から、x1とx2の和は4以上の数である。またx1とx2の和が20を越えても洗浄性能は変わらないが、排水処理や発泡抑制等の観点から、x1とx2の和は、好ましくは20以下の数であり、さらに好ましくは6〜15の数である。また、一般式(II)で表される化合物のプロピレンオキサイドの平均付加モル数y1は、洗浄性や生分解性等の観点から、0より大きく、エチレンオキサイドの平均付加モル数であるx1とx2の和より小さい数であり、好ましくは 0.5〜6、より好ましくは1〜5の数である。 In the compound represented by the general formula (II), x1 and x2 indicating the average added mole number of ethylene oxide are each 1 or more, and from the viewpoint of compatibility with water, the sum of x1 and x2 is 4 or more. Is the number of The washing performance does not change even if the sum of x1 and x2 exceeds 20, but from the viewpoint of wastewater treatment and foaming suppression, the sum of x1 and x2 is preferably a number of 20 or less, more preferably 6 to A number of 15. Further, the average addition mole number y1 of propylene oxide of the compound represented by the general formula (II) is larger than 0 from the viewpoint of detergency, biodegradability, etc., and x1 and x2 are the average addition mole numbers of ethylene oxide. The number is smaller than the sum of the numbers, preferably 0.5 to 6, more preferably 1 to 5.
一般式(III)で表される化合物において、エチレンオキサイドの平均付加モル数を示すx3及びx4はそれぞれ1以上の数であり、水との相溶性の観点から、x3とx4の和は4以上の数である。またx3とx4の和が20を越えても洗浄性能は変わらないが、排水処理や発泡抑制等の観点から、x3とx4の和は、好ましくは20以下の数であり、さらに好ましくは6〜15の数である。また、一般式(III)で表される化合物のプロピレンオキサイドの平均付加モル数y2は、洗浄性や生分解性等の観点から、0より大きく、エチレンオキサイドの平均付加モル数であるx3とx4の和より小さい数であり、好ましくは0.5〜6、より好ましくは1〜5の数である。 In the compound represented by the general formula (III), x3 and x4 indicating the average added mole number of ethylene oxide are each 1 or more, and the sum of x3 and x4 is 4 or more from the viewpoint of compatibility with water. Is the number of In addition, the washing performance does not change even if the sum of x3 and x4 exceeds 20, but from the viewpoint of wastewater treatment and foaming suppression, the sum of x3 and x4 is preferably a number of 20 or less, more preferably 6 to A number of 15. In addition, the average addition mole number y2 of propylene oxide of the compound represented by the general formula (III) is larger than 0 from the viewpoint of detergency, biodegradability, and the like, and x3 and x4 which are average addition mole numbers of ethylene oxide The number is smaller than the sum of the numbers, preferably 0.5 to 6, more preferably 1 to 5.
一般式(IV)で表される化合物において、エチレンオキサイドの平均付加モル数を示すx5及びx8はそれぞれ1以上の数であり、x6とx7の和は1以上の数で、水との相溶性の観点から、x5とx6とx7とx8の和は4以上の数である。またx5とx6とx7とx8の和が20を越えても洗浄性能は変わらないが、排水処理や発泡抑制等の観点から、x5とx6とx7とx8の和は、好ましくは20以下の数であり、さらに好ましくは6〜15の数である。また、一般式(IV)で表される化合物のプロピレンオキサイドの平均付加モル数y3, y4, y5はそれぞれ0以上であり、y3+y5≧0.1、好ましくはy3+y5≧1である。y3とy4とy5の和は、洗浄性や生分解性等の観点から、エチレンオキサイドの平均付加モル数であるx5とx6とx7とx8の和より小さい数であり、好ましくは 0.5〜6、より好ましくは1〜5の数である。 In the compound represented by the general formula (IV), x5 and x8 indicating the average added mole number of ethylene oxide are each 1 or more, and the sum of x6 and x7 is 1 or more and is compatible with water. In view of the above, the sum of x5, x6, x7, and x8 is a number of 4 or more. Although the washing performance does not change even if the sum of x5, x6, x7 and x8 exceeds 20, the sum of x5, x6, x7 and x8 is preferably a number of 20 or less from the viewpoint of wastewater treatment and foam suppression. And more preferably a number of 6-15. Further, the average addition mole number y3, y4, y5 of propylene oxide of the compound represented by the general formula (IV) is 0 or more, and y3 + y5 ≧ 0.1, preferably y3 + y5 ≧ 1. The sum of y3, y4 and y5 is smaller than the sum of x5, x6, x7 and x8, which is the average added mole number of ethylene oxide, from the viewpoint of detergency, biodegradability, etc., preferably 0.5-6, More preferably, it is a number of 1-5.
一般式(V)において、R5は、好ましくは炭素数が6〜12、更に6〜10の直鎖又は分岐鎖のアルキル基又はアルケニル基であり、R5が炭素数6〜8の直鎖又は分岐鎖のアルキル基又はアルケニル基の場合にはオキシエチレン基の平均付加モル数zは1〜10、R5が炭素数9〜10の直鎖又は分岐鎖のアルキル基又はアルケニル基の場合にはオキシエチレン基の平均付加モル数zは4〜10である。さらにより好ましくは、R5が炭素数6〜7の直鎖又は分岐鎖のアルキル基又はアルケニル基の場合にはzは2〜8、R5が炭素数が8〜10の直鎖又は分岐鎖のアルキル基又はアルケニル基の場合にはzは4〜8である。 In the general formula (V), R 5 is preferably a linear or branched alkyl group or alkenyl group having 6 to 12 carbon atoms, and further 6 to 10 carbon atoms, and R 5 is a linear chain having 6 to 8 carbon atoms. In the case of a branched alkyl group or alkenyl group, the average addition mole number z of the oxyethylene group is 1 to 10, and R 5 is a linear or branched alkyl group or alkenyl group having 9 to 10 carbon atoms. The average added mole number z of oxyethylene groups is 4-10. Even more preferably, when R 5 is a linear or branched alkyl or alkenyl group having 6 to 7 carbon atoms, z is 2 to 8, and R 5 is a linear or branched chain having 8 to 10 carbon atoms. In the case of the alkyl group or alkenyl group, z is 4-8.
また、成分(d)のうち、アルキル(アルキル基の炭素数5〜12)フェノールのアルキレンオキサイド付加物も上記範囲のHLBとなるようにアルキレンオキサイドを付加したものが好ましい。アルキレンオキサイドは、エチレンオキサイド、プロピレンオキサイドが好ましく、特にエチレンオキサイドを含むことが好ましい。エチレンオキサイドの平均付加モル数は6〜15が好ましい。 In addition, among the component (d), an alkylene oxide adduct of alkyl (having 5 to 12 carbon atoms in the alkyl group) phenol is also preferably obtained by adding an alkylene oxide so that the HLB is in the above range. The alkylene oxide is preferably ethylene oxide or propylene oxide, and particularly preferably contains ethylene oxide. The average added mole number of ethylene oxide is preferably 6-15.
[任意成分]
本発明の鋼帯用洗浄剤組成物は、必要に応じて、成分(a)以外のアルカリ剤を含有することができ、例えば、水酸化ナトリウム、水酸化カリウム等のアルカリ金属の水酸化物、リン酸三ナトリウム等のリン酸塩、炭酸二ナトリウム、炭酸水素ナトリウム、炭酸二カリウム等の炭酸塩、ホウ酸ナトリウム等のホウ酸塩等が挙げられる。2種以上のアルカリ剤を組み合わせても良い。好ましくは水酸化ナトリウム、水酸化カリウムであり、より好ましくは水酸化ナトリウムである。
[Optional ingredients]
The steel strip cleaning composition of the present invention can contain an alkali agent other than the component (a) as required, for example, alkali metal hydroxides such as sodium hydroxide and potassium hydroxide, Examples thereof include phosphates such as trisodium phosphate, carbonates such as disodium carbonate, sodium hydrogencarbonate and dipotassium carbonate, and borate salts such as sodium borate. Two or more alkali agents may be combined. Sodium hydroxide and potassium hydroxide are preferable, and sodium hydroxide is more preferable.
本発明の鋼帯用洗浄剤組成物は、本発明の効果を損なわない範囲で、成分(b)以外のキレート剤を含有することができる。 The steel strip cleaning composition of the present invention can contain a chelating agent other than the component (b) as long as the effects of the present invention are not impaired.
キレート剤は汚れ中の金属原子と結合してこれを除去することにより洗浄効果を高める役割を担うと考えられる。 The chelating agent is considered to play a role of enhancing the cleaning effect by binding to and removing metal atoms in the soil.
本発明の鋼帯用洗浄剤組成物では、成分(a)及び成分(b)の重量比(a)/(b)は、洗浄性と焼鈍後の鋼帯の密着度低減を両立する観点から、好ましくは、4/1〜70/1、より好ましくは、4/1〜40/1、更に好ましくは、4/1〜8/1である。 In the steel strip cleaning composition of the present invention, the weight ratio (a) / (b) of the component (a) and the component (b) is from the viewpoint of achieving both cleanability and reducing the adhesion of the steel strip after annealing. The ratio is preferably 4/1 to 70/1, more preferably 4/1 to 40/1, and still more preferably 4/1 to 8/1.
本発明の鋼帯用洗浄剤組成物では、成分(a)と成分(b)の含有量は、両者の合計で、洗浄性、焼鈍後の鋼帯の密着度低減及び組成物の安定性を並立する観点から、好ましくは、0.1〜26重量%、より好ましくは、0.5〜24重量%、更に好ましくは、1〜24重量%である。 In the steel strip cleaning composition of the present invention, the content of the component (a) and the component (b) is the sum of both, and the cleaning property, the adhesion reduction of the steel strip after annealing, and the stability of the composition. From the viewpoint of juxtaposition, it is preferably 0.1 to 26% by weight, more preferably 0.5 to 24% by weight, and still more preferably 1 to 24% by weight.
本発明の鋼帯用洗浄剤組成物では、成分(a)と成分(c)の重量比(a)/(c)は、組成物の安定性を確保する観点から、好ましくは、60/1〜5/1、より好ましくは、50/1〜7/1、更に好ましくは、40/1〜10/1である。 In the steel strip cleaning composition of the present invention, the weight ratio (a) / (c) of the component (a) to the component (c) is preferably 60/1 from the viewpoint of securing the stability of the composition. To 5/1, more preferably 50/1 to 7/1, and still more preferably 40/1 to 10/1.
本発明の鋼帯用洗浄剤組成物では、成分(d)の含有量は、洗浄性を向上させ、また組成物の発泡を抑えて良好な使用性を得る観点から、0.01〜30重量%が好ましく、0.01〜10重量%が更に好ましく、0.02〜5重量%が特に好ましい。 In the steel strip cleaning composition of the present invention, the content of the component (d) is 0.01 to 30% from the viewpoint of improving the cleaning property and suppressing foaming of the composition to obtain good usability. % Is preferable, 0.01 to 10% by weight is more preferable, and 0.02 to 5% by weight is particularly preferable.
本発明の鋼帯用洗浄剤組成物は、そのまま或いは水等で希釈して使用されるが、使用時の組成物(原液ないし希釈液)中の(a)と(b)の合計量の濃度は、被洗浄物の種類や汚れの種類により異なるが、鋼帯の洗浄性向上と焼鈍後の鋼帯の密着度低減を両立する観点から、0.1〜10重量%が好ましく、0.3〜7重量%がより好ましく、0.5〜5重量%が更に好ましく、0.5〜4重量%が更により好ましく、1〜3重量%が更に好ましい。この範囲であれば洗浄性と焼鈍後の鋼帯の密着度低減効果が良好となり、設備腐食も防止できる。 The steel strip cleaning composition of the present invention is used as it is or diluted with water or the like, but the concentration of the total amount of (a) and (b) in the composition (stock solution or diluted solution) at the time of use. Is different depending on the type of object to be cleaned and the type of dirt, but is preferably 0.1 to 10% by weight from the viewpoint of achieving both improvement of the cleaning property of the steel strip and reduction of the adhesion of the steel strip after annealing. -7 wt% is more preferred, 0.5-5 wt% is more preferred, 0.5-4 wt% is even more preferred, and 1-3 wt% is even more preferred. If it is this range, the washing | cleaning property and the adhesiveness reduction effect of the steel strip after annealing will become favorable, and equipment corrosion can also be prevented.
本発明の鋼帯用洗浄剤組成物は、成分(a)及び成分(b)、更にその他の成分を含有する1剤型の組成物、特に成分(a)及び成分(b)、更にその他の成分を含有する水溶液からなることが好ましい。 The steel strip cleaning composition of the present invention is a one-component composition containing components (a) and (b) and other components, particularly component (a) and component (b), and other It preferably consists of an aqueous solution containing the components.
本発明の鋼帯用洗浄剤組成物は、鋼帯の洗浄性向上と密着低減性を両立する観点から、少なくとも40℃で、更に40〜50℃で水溶液の状態であることが好ましい。本発明の鋼帯用洗浄剤組成物は、50℃以上の温度で各成分を混合して製造し、50℃以上で保管することができる。また、成分(c)の存在下、成分(a)と成分(b)の合計量が26重量%以下、更に24重量%以下で、各成分を混合して40〜50℃で水溶液の状態である組成物として得ることができる。ここで、水溶液とは、水を溶媒とする溶液であり、溶液とは1つ以上の物質が他の物質に溶解した混合物で、均一な液体状態にあるものを指し、懸濁液のようにコロイド粒子が溶媒中に分散しているものは含まない。 The steel strip cleaning composition of the present invention is preferably in the state of an aqueous solution at least at 40 ° C., and further at 40 to 50 ° C., from the viewpoint of achieving both improved cleaning properties and reduced adhesion of the steel strip. The steel strip cleaning composition of the present invention can be produced by mixing each component at a temperature of 50 ° C. or higher and stored at 50 ° C. or higher. In the presence of component (c), the total amount of component (a) and component (b) is 26% by weight or less, and further 24% by weight or less. It can be obtained as a composition. Here, an aqueous solution is a solution using water as a solvent, and a solution is a mixture in which one or more substances are dissolved in another substance in a uniform liquid state, like a suspension. It does not include those in which colloidal particles are dispersed in a solvent.
[鋼帯の製造方法]
本発明の鋼帯用洗浄剤組成物を使用した好ましい鋼帯の製造方法について説明する。
[Method of manufacturing steel strip]
A preferred method for producing a steel strip using the steel strip cleaning composition of the present invention will be described.
通常、鋼帯の製造は、冷間圧延工程→洗浄工程→バッチ式焼鈍工程→メッキ工程→化成処理工程、等の工程を経て行われる。このうち、洗浄工程は、一般に、予備洗浄(浸漬洗浄・スプレー洗浄)→電解洗浄→ブラシ洗浄→リンスといった工程を含む。洗浄工程における鋼帯用洗浄剤組成物の添加方法は、一液型洗浄剤の場合、洗浄タンクに水と原液(一液型洗浄剤)を添加して混合・希釈して用いる。濃度管理は一液型洗浄剤の場合はアルカリ濃度で管理する。添加剤はアルカリ剤と別々に洗浄タンクに添加して用いる。アルカリ剤はアルカリ濃度、添加剤は主に非イオン界面活性剤濃度で管理する。洗浄は、40〜90℃の温度範囲で行われる。また、洗浄時間は、一般洗浄ラインの場合、浸漬洗浄0.5〜5秒、スプレー洗浄0.5〜5秒、電解洗浄0.5〜5秒、ブラシ洗浄0.5〜5秒、リンス0.5〜5秒の範囲で行われる。本発明の鋼帯用洗浄剤組成物もこのような通常の洗浄工程に使用することができる。 Usually, the steel strip is manufactured through processes such as a cold rolling process, a cleaning process, a batch annealing process, a plating process, and a chemical conversion treatment process. Among these, the cleaning process generally includes a process of preliminary cleaning (immersion cleaning / spray cleaning) → electrolytic cleaning → brush cleaning → rinsing. As a method for adding the steel strip cleaning composition in the cleaning process, in the case of a one-component cleaning agent, water and a stock solution (one-component cleaning agent) are added to a cleaning tank and mixed and diluted. Concentration management is performed with an alkali concentration in the case of a one-component detergent. The additive is used separately from the alkaline agent and added to the washing tank. The alkali agent is controlled at the alkali concentration, and the additive is mainly controlled at the nonionic surfactant concentration. Washing is performed in a temperature range of 40 to 90 ° C. In the case of a general cleaning line, the cleaning time is 0.5-5 seconds for immersion cleaning, 0.5-5 seconds for spray cleaning, 0.5-5 seconds for electrolytic cleaning, 0.5-5 seconds for brush cleaning, and rinse 0. .5 to 5 seconds. The steel strip cleaning composition of the present invention can also be used in such a normal cleaning process.
焼鈍工程は、目的によって幾分相違した焼鈍方法により行われるが、一般には完全焼鈍と称し、鋼帯を焼鈍炉に入れ800℃〜900℃に加熱し一定時間保持した後に、400℃後前後まで炉中徐冷した後引き出して空冷する。 The annealing process is performed by an annealing method somewhat different depending on the purpose. Generally, this is called complete annealing. The steel strip is put in an annealing furnace, heated to 800 ° C. to 900 ° C. and held for a certain period of time until about 400 ° C. After cooling slowly in the furnace, pull it out and air-cool.
冷間圧延鋼帯はその表面が極めて平滑なため、高温で焼鈍されると鋼帯表面が極めて熔着(密着=焼き付き)しやすい。高温で冷間圧延鋼帯をバッチ式で焼鈍する場合、焼鈍前に鋼帯を珪酸塩液中で電解洗浄する等して鋼帯表面にシリコンを電着すれば鋼帯同士の接触面積を減らすことができるため熔着(密着=焼き付き)を防止できると考えられる。本発明の鋼帯用洗浄剤組成物は珪酸塩に一定量のグルコン酸及び/又はその塩を加えることで、鋼帯の電解洗浄後の電着シリコンによる密着低減効果を更に大きくすることができる。 Since the surface of a cold-rolled steel strip is extremely smooth, the surface of the steel strip is very likely to be welded (adhesion = seizure) when annealed at a high temperature. When annealing cold-rolled steel strips at high temperatures in batch mode, if silicon is electrodeposited on the steel strip surface by electrolytic cleaning of the steel strip in a silicate solution before annealing, the contact area between the steel strips is reduced. Therefore, it is considered that welding (adhesion = burn-in) can be prevented. The steel strip cleaning composition of the present invention can further increase the adhesion reduction effect of electrodeposited silicon after electrolytic cleaning of the steel strip by adding a certain amount of gluconic acid and / or its salt to the silicate. .
本発明の鋼帯用洗浄剤組成物及び鋼帯製造方法は、特に、タイトコイルのバッチ式焼鈍において好適に用いられる。 The steel strip cleaning composition and the steel strip manufacturing method of the present invention are particularly preferably used in batch coil annealing of tight coils.
〔I〕鋼帯用洗浄剤組成物の調製
(I−1)実施例1〜15及び比較例1〜7
室温下(25℃)で水に表1の成分(b)を溶解させる。次に室温下で表1の成分(c)と成分(d)を添加して混合(攪拌)溶解させる。更に、50〜80℃で溶解させた(結晶析出のない)状態の成分(a)(オルソ珪酸ソーダ;30%固形分濃度の水溶液、日本化学工業品)又は水酸化ナトリウムを添加して混合(攪拌)により透明一剤型の鋼帯用洗浄剤組成物を調製した。ただし、比較例6は、攪拌後に2層分離した状態であった。
[I] Preparation of cleaning composition for steel strip (I-1) Examples 1 to 15 and Comparative Examples 1 to 7
The component (b) in Table 1 is dissolved in water at room temperature (25 ° C.). Next, component (c) and component (d) in Table 1 are added and mixed (stirred) and dissolved at room temperature. Furthermore, component (a) (orthosilicate sodium; 30% solid content aqueous solution, Nippon Kagaku Kogyo Co., Ltd.) or sodium hydroxide dissolved in 50 to 80 ° C. (without crystal precipitation) was added and mixed ( A clear one-component steel strip cleaning composition was prepared by stirring). However, Comparative Example 6 was in a state where two layers were separated after stirring.
(I−2)比較例8
水に成分(b)を溶解させたものに、ポリアクリル酸ナトリウムの水溶液(40%固形分)を混合し攪拌させた後、組成物中の濃度が40重量%となるように水酸化ナトリウムを混合させて行き、成分(b)、ポリアクリル酸ナトリウム、水酸化ナトリウムを含有する懸濁液とし、更に成分(d)をホモジナイザー(回転数12000rpm)を用いて剪断をかけながら攪拌混合し、スラリー状の一剤型の鋼帯用洗浄剤組成物を調製した。
(I-2) Comparative Example 8
An aqueous solution (40% solid content) of sodium polyacrylate is mixed with the component (b) dissolved in water and stirred, and then sodium hydroxide is added so that the concentration in the composition is 40% by weight. The mixture is mixed to form a suspension containing component (b), sodium polyacrylate, and sodium hydroxide, and component (d) is further stirred and mixed using a homogenizer (rotation speed: 12000 rpm) while being sheared. A one-pack type steel strip cleaning composition was prepared.
〔II〕評価
表1、2の鋼帯用洗浄剤組成物の1000gをポリスチレン容器に入れ、40℃で2ヶ月保管した後、前記容器の下部から組成物の下層分を20g採取し、その中から必要量を採取し水により3〜30倍に希釈した後、下記方法で鋼帯の洗浄試験(脱脂性)および密着性試験を行った。また、上記保存後の組成物の様子を観察し、保存安定性を評価した。結果を表1、2に示す。
[II] Evaluation After putting 1000 g of the steel band cleaning composition of Tables 1 and 2 into a polystyrene container and storing it at 40 ° C. for 2 months, 20 g of the lower layer of the composition was sampled from the lower part of the container, The required amount was collected from the sample and diluted 3 to 30 times with water, and then a steel strip cleaning test (degreasing property) and an adhesion test were performed by the following methods. Moreover, the state of the composition after the storage was observed to evaluate the storage stability. The results are shown in Tables 1 and 2.
(II−1)洗浄性(脱脂性)の評価
(1)洗浄試験手順
表1、2の鋼帯用洗浄剤組成物を表1、2の希釈倍率で希釈した洗浄液(以下、試験洗浄液という)を調製し、80℃又は40℃の試験洗浄液に鋼帯を1秒間浸漬し、その後続けて電流密度5A/dm2で鋼帯電位を負から正にそれぞれ0.5秒ずつ一度切り替えて電解洗浄し、その後水でリンスを行い乾燥した。
(II-1) Evaluation of Detergency (Degreasing) (1) Cleaning Test Procedure Cleaning solution obtained by diluting the steel strip cleaning compositions in Tables 1 and 2 at the dilution ratios in Tables 1 and 2 (hereinafter referred to as test cleaning solutions) The steel strip is immersed in a test cleaning solution at 80 ° C. or 40 ° C. for 1 second, and then the steel charging position is switched from negative to positive once every 0.5 seconds at a current density of 5 A / dm 2 . Thereafter, it was rinsed with water and dried.
(2)鋼帯
平均油分付着量 140mg/m2の冷間圧延鋼帯を25mm×50mmの大きさに切断して用いた(以下、鋼帯片という)。
(2) Steel strip A cold rolled steel strip having an average oil content of 140 mg / m 2 was cut into a size of 25 mm × 50 mm (hereinafter referred to as a steel strip).
(3)残存油分付着量測定方法
洗浄性は洗浄試験後の鋼帯片表面の残存油分付着量により評価した。鋼帯片表面の残存油分付着量は、全て金属板付着油分量測定装置(EMIA-111/堀場製作所製)を用いて測定した。測定値は5回測定の平均値である。洗浄性は脱脂性の評価であり、その判定基準は、残存付着油分量が10mg/m2以上は不良(×)、3mg/m2以上10mg/m2未満は良(○)、3mg/m2未満は優良(◎)とした。
(3) Measuring method of residual oil adhesion amount The detergency was evaluated by the residual oil adhesion amount on the surface of the steel strip after the cleaning test. The amount of oil remaining on the surface of the steel strip was all measured using a metal plate attached oil amount measuring device (EMIA-111 / Horiba Seisakusho). The measured value is an average value of five measurements. Detergency is an evaluation of degreasing properties, and the criterion is that the amount of residual adhered oil is 10 mg / m 2 or more is poor (x), 3 mg / m 2 or more and less than 10 mg / m 2 is good (◯), 3 mg / m Less than 2 was considered excellent (優).
(II−2)密着性の評価
洗浄性で用いたのと同一の鋼帯を20mm×50mmの大きさに切断して用いた(以下、鋼帯片という)。この鋼帯片を、先ず溶剤浸漬(n-ヘキサン、室温中、10秒間)して洗浄し、次いで洗浄性の評価で行った洗浄試験手順に基づいて電解洗浄した。電解洗浄後の鋼帯片の電着Si量と鋼帯片の密着強度を測定した。
(II-2) Evaluation of adhesion The same steel strip used for cleaning was cut into a size of 20 mm × 50 mm (hereinafter referred to as a steel strip). This steel strip was first cleaned by immersion in a solvent (n-hexane, at room temperature for 10 seconds), and then electrolytically cleaned based on the cleaning test procedure performed in the evaluation of cleaning properties. The amount of electrodeposited Si of the steel strip after electrolytic cleaning and the adhesion strength of the steel strip were measured.
(1)電着Si量の測定
蛍光X線分析装置で、洗浄後の鋼帯片のSiの強度を測定し、予め作成した検量線を用いて鋼帯片1m2当たりのSi付着量を求めた。
(1) in the electrodeposition Si amount measured fluorescent X-ray analyzer, the intensity of Si of the steel strip after cleaning was measured to obtain the Si deposition amount of the steel strip 1 m 2 per using a pre-prepared calibration curve It was.
(2)密着強度の測定
洗浄後の鋼帯片を20mm×30mmが重なるように、一対毎にスペーサーを入れ、図1に示すようにホルダーにセットし、スタックで面圧Pが50kg/cm2になるように加圧した後、焼鈍炉に装入し焼鈍した。焼鈍終了後(放冷終了後)、図2に示すように上下2枚の鋼帯片を反対方向に引っ張り、剥離強度Tを測定した。なお焼鈍条件は以下の通りである。
<焼鈍条件>
焼鈍雰囲気:N2ガス+H2ガス(H2ガス:5体積%)
焼鈍温度:700℃
昇温時間:2時間
焼鈍時間:1時間
放冷時間:10時間
(2) Measurement of adhesion strength Insert a spacer for each pair of steel strips after washing so that they overlap each other by 20mm x 30mm, set them in the holder as shown in Fig. 1, and the surface pressure P is 50kg / cm 2 in the stack. After pressurizing to become, it was charged in an annealing furnace and annealed. After completion of annealing (after completion of cooling), as shown in FIG. 2, the upper and lower steel strips were pulled in opposite directions, and the peel strength T was measured. The annealing conditions are as follows.
<Annealing conditions>
Annealing atmosphere: N 2 gas + H 2 gas (H 2 gas: 5% by volume)
Annealing temperature: 700 ° C
Temperature rising time: 2 hours Annealing time: 1 hour Cooling time: 10 hours
(III)保存安定性の評価
表1、2の鋼帯用洗浄剤組成物(希釈前の組成物)を40℃で2ヶ月間保管した後の組成物の外観等を観察した。外観に変化がなく相分離がないものを「なし」、相分離が生じるものを「あり」とした。の比較を行った。また、増粘と固化が生じないものを「なし」、増粘及び/又は固化が生じるものを「あり」とした。
(III) Evaluation of Storage Stability The appearance and the like of the composition after observing the steel strip cleaning compositions of Tables 1 and 2 (composition before dilution) at 40 ° C. for 2 months were observed. “None” indicates no change in appearance and no phase separation, and “Yes” indicates that phase separation occurs. A comparison was made. Further, “None” indicates that neither thickening nor solidification occurs, and “Yes” indicates that thickening and / or solidification occurs.
表中、記号は以下のもの(以下においてEOはエチレンオキサイド、POはプロピレンオキサイド、モルは平均数である)を意味する。
・d−1:下記合成例1で得られた非イオン界面活性剤
・d−2:ドデカノールEO7モルPO1.5モルEO7モルブロック付加物
・d−3:2−エチルヘキサノールのEO4モル付加物
・d−4:2級ドデカノールEO12モルPO3モルブロック付加物
・d−5:オクチルフェノールEO10モル付加物
In the table, the symbols mean the following (hereinafter, EO is ethylene oxide, PO is propylene oxide, and mole is an average number).
D-1: nonionic surfactant obtained in Synthesis Example 1 below d-2: dodecanol EO 7 mol PO 1.5 mol EO 7 mol block adduct d-3: 2-ethylhexanol EO 4 mol adduct d-4: secondary dodecanol EO 12 mol PO3 mol block adduct d-5: octylphenol EO 10 mol adduct
<合成例1>
エチレンオキサイド用とプロピレンオキサイド用の2つの計量槽の付いた5リットルの回転攪拌式オートクレーブ中に平均炭素数が12の2級アルコールにエチレンオキサイドを3モル付加させたエトキシレート化合物(商品名「ソフタノール30」、(株)日本触媒製)を1012g、水酸化カリウムを3.0g仕込み、窒素置換を行った後、110℃に昇温し、5.33kPaで1時間脱水を行った。次に150℃に昇温し、エチレンオキサイドを343kPaの圧力で267gオートクレーブ中に導入し、圧力が低下して一定になるまで反応させた後、120℃に冷却してプロピレンオキサイド352gをオートクレーブ中に343kPaの圧力で導入し、エチレンオキサイドの場合と同様に圧力が低下し、一定になるまで反応させた。その後、再び150℃に昇温し、エチレンオキサイドを668g導入し、圧力が低下して一定になるまで反応させた。反応終了後、温度を低下させて合成したサンプルを抜き出し、触媒を酢酸で中和して約2.3kgの非イオン界面活性剤(平均分子量:760)を得た。得られた非イオン界面活性剤は、一般式 R2-O-(EO)x1-(PO)y1-(EO)x2-Hにおいて、R2が総炭素数12の2級アルキル基、x1が5、x2が5、y1が2である化合物であった。
<Synthesis Example 1>
Ethoxylate compound in which 3 moles of ethylene oxide is added to a secondary alcohol with an average carbon number of 12 in a 5 liter rotary stirring autoclave with two measuring tanks for ethylene oxide and propylene oxide (trade name “Softanol”) 30 ”(manufactured by Nippon Shokubai Co., Ltd.) and 3.0 g of potassium hydroxide were charged. After nitrogen substitution, the temperature was raised to 110 ° C. and dehydration was performed at 5.33 kPa for 1 hour. Next, the temperature was raised to 150 ° C., 267 g of ethylene oxide was introduced into the autoclave at a pressure of 343 kPa, reacted until the pressure decreased and became constant, and then cooled to 120 ° C. to 352 g of propylene oxide in the autoclave. It was introduced at a pressure of 343 kPa, and the reaction was continued until the pressure dropped and became constant as in the case of ethylene oxide. Thereafter, the temperature was raised again to 150 ° C., 668 g of ethylene oxide was introduced, and the reaction was continued until the pressure decreased and became constant. After completion of the reaction, a sample synthesized at a reduced temperature was taken out, and the catalyst was neutralized with acetic acid to obtain about 2.3 kg of a nonionic surfactant (average molecular weight: 760). The obtained nonionic surfactant is represented by the general formula R 2 -O- (EO) x1- (PO) y1- (EO) x2 -H, where R 2 is a secondary alkyl group having 12 carbon atoms in total, and x1 is 5. It was a compound in which x2 was 5 and y1 was 2.
なお、実施例1〜3、5〜13の鋼帯用洗浄剤組成物は、保存安定性の評価において、全て相分離、増粘、固化が生じなかった。 In addition, in the cleaning compositions for steel strips of Examples 1 to 3 and 5 to 13, no phase separation, thickening, and solidification occurred in the storage stability evaluation.
Claims (6)
R1−X−(CH2)mCOOM1 (1)
R2−COOM2 (2)
R3−COOM3 (3)
〔式中、R1は炭素数4〜22の飽和もしくは不飽和の直鎖もしくは分岐鎖の脂肪族炭化水素基又は炭素数5〜18の芳香族炭化水素基を示し、Xは基 >NH、>N(CH2)nCOOM1又は>CHCOOM1を示す。R2は炭素数3〜22の飽和もしくは不飽和の直鎖の脂肪族炭化水素基又は炭素数5〜18の芳香族炭化水素基を示す。R3は炭素数4〜22の飽和もしくは不飽和の分岐鎖の脂肪族炭化水素基を示す。M1、M2、M3はそれぞれ水素原子、アルカリ金属、炭素数1〜4の脂肪族アミン、アンモニア又はアルカノールアミンを示し、m及びnはそれぞれ1〜3の整数を示す。〕 Furthermore, the cleaning composition for batch type annealed steel strips according to claim 1 or 2, comprising at least one compound (c) selected from compounds represented by the following general formulas (1) to (3).
R 1 —X— (CH 2 ) m COOM 1 (1)
R 2 -COOM 2 (2)
R 3 -COOM 3 (3)
[Wherein, R 1 represents a saturated or unsaturated linear or branched aliphatic hydrocarbon group having 4 to 22 carbon atoms or an aromatic hydrocarbon group having 5 to 18 carbon atoms, and X represents a group> NH, > N (CH 2 ) n COOM 1 or> CHCOOM 1 R 2 represents a saturated or unsaturated linear aliphatic hydrocarbon group having 3 to 22 carbon atoms or an aromatic hydrocarbon group having 5 to 18 carbon atoms. R 3 represents a saturated or unsaturated branched aliphatic hydrocarbon group having 4 to 22 carbon atoms. M 1 , M 2 and M 3 each represent a hydrogen atom, an alkali metal, an aliphatic amine having 1 to 4 carbon atoms, ammonia or an alkanolamine, and m and n each represent an integer of 1 to 3. ]
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JPS63143298A (en) * | 1986-11-29 | 1988-06-15 | 中国鋼鉄股ふん有限公司 | Electrolytic cleaning composition |
JPH01163733A (en) * | 1987-03-19 | 1989-06-28 | Fuji Photo Film Co Ltd | Silver halide photographic sensitive material |
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JPS60161728A (en) * | 1984-01-31 | 1985-08-23 | Kao Corp | Strong alkaline aqueous solution of nonionic surfactant |
JPS63143298A (en) * | 1986-11-29 | 1988-06-15 | 中国鋼鉄股ふん有限公司 | Electrolytic cleaning composition |
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