JPS6257756B2 - - Google Patents
Info
- Publication number
- JPS6257756B2 JPS6257756B2 JP54114063A JP11406379A JPS6257756B2 JP S6257756 B2 JPS6257756 B2 JP S6257756B2 JP 54114063 A JP54114063 A JP 54114063A JP 11406379 A JP11406379 A JP 11406379A JP S6257756 B2 JPS6257756 B2 JP S6257756B2
- Authority
- JP
- Japan
- Prior art keywords
- oxidation
- oxygen
- redox
- cooking
- additives
- 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.)
- Expired
Links
- 238000007254 oxidation reaction Methods 0.000 claims description 88
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 87
- 230000003647 oxidation Effects 0.000 claims description 86
- 239000000654 additive Substances 0.000 claims description 71
- 238000010411 cooking Methods 0.000 claims description 59
- 229910052760 oxygen Inorganic materials 0.000 claims description 55
- 239000001301 oxygen Substances 0.000 claims description 55
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 53
- 239000007788 liquid Substances 0.000 claims description 40
- 238000000034 method Methods 0.000 claims description 34
- 239000012978 lignocellulosic material Substances 0.000 claims description 33
- 230000000996 additive effect Effects 0.000 claims description 30
- 150000004056 anthraquinones Chemical class 0.000 claims description 29
- 239000007789 gas Substances 0.000 claims description 21
- PYKYMHQGRFAEBM-UHFFFAOYSA-N anthraquinone Natural products CCC(=O)c1c(O)c2C(=O)C3C(C=CC=C3O)C(=O)c2cc1CC(=O)OC PYKYMHQGRFAEBM-UHFFFAOYSA-N 0.000 claims description 19
- 230000002829 reductive effect Effects 0.000 claims description 18
- 239000002253 acid Substances 0.000 claims description 17
- 150000001875 compounds Chemical class 0.000 claims description 15
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims description 15
- 239000000347 magnesium hydroxide Substances 0.000 claims description 15
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims description 15
- 239000001913 cellulose Substances 0.000 claims description 14
- 229920002678 cellulose Polymers 0.000 claims description 14
- 150000002978 peroxides Chemical class 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 11
- 235000000346 sugar Nutrition 0.000 claims description 11
- 230000001590 oxidative effect Effects 0.000 claims description 10
- 239000003513 alkali Substances 0.000 claims description 9
- 239000003112 inhibitor Substances 0.000 claims description 9
- 229920001282 polysaccharide Polymers 0.000 claims description 9
- 239000005017 polysaccharide Substances 0.000 claims description 9
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 7
- 239000007800 oxidant agent Substances 0.000 claims description 7
- 150000001720 carbohydrates Chemical class 0.000 claims description 6
- 235000014633 carbohydrates Nutrition 0.000 claims description 6
- 239000003054 catalyst Substances 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 5
- QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 claims description 4
- 125000004151 quinonyl group Chemical group 0.000 claims description 4
- 239000008139 complexing agent Substances 0.000 claims description 3
- 150000004053 quinones Chemical class 0.000 claims description 3
- 125000000542 sulfonic acid group Chemical group 0.000 claims description 3
- 150000005208 1,4-dihydroxybenzenes Chemical class 0.000 claims description 2
- 125000003118 aryl group Chemical group 0.000 claims description 2
- 125000005594 diketone group Chemical group 0.000 claims description 2
- 230000002401 inhibitory effect Effects 0.000 claims description 2
- 125000001570 methylene group Chemical group [H]C([H])([*:1])[*:2] 0.000 claims description 2
- 150000004676 glycans Chemical group 0.000 claims 2
- 150000002576 ketones Chemical class 0.000 claims 1
- FRASJONUBLZVQX-UHFFFAOYSA-N naphthoquinone group Chemical group C1(C=CC(C2=CC=CC=C12)=O)=O FRASJONUBLZVQX-UHFFFAOYSA-N 0.000 claims 1
- 230000007704 transition Effects 0.000 claims 1
- 239000002023 wood Substances 0.000 description 56
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 27
- 229910001882 dioxygen Inorganic materials 0.000 description 27
- 238000007792 addition Methods 0.000 description 23
- 230000008569 process Effects 0.000 description 19
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 15
- 230000029087 digestion Effects 0.000 description 12
- JAJIPIAHCFBEPI-UHFFFAOYSA-N 9,10-dioxoanthracene-1-sulfonic acid Chemical compound O=C1C2=CC=CC=C2C(=O)C2=C1C=CC=C2S(=O)(=O)O JAJIPIAHCFBEPI-UHFFFAOYSA-N 0.000 description 11
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 10
- 235000011613 Pinus brutia Nutrition 0.000 description 10
- 241000018646 Pinus brutia Species 0.000 description 10
- 238000000354 decomposition reaction Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 10
- CDBYLPFSWZWCQE-UHFFFAOYSA-L sodium carbonate Substances [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 10
- RBGUKBSLNOTVCD-UHFFFAOYSA-N 1-methylanthracene-9,10-dione Chemical compound O=C1C2=CC=CC=C2C(=O)C2=C1C=CC=C2C RBGUKBSLNOTVCD-UHFFFAOYSA-N 0.000 description 8
- -1 Schumb Substances 0.000 description 8
- 235000013312 flour Nutrition 0.000 description 8
- 239000011777 magnesium Substances 0.000 description 8
- 239000002655 kraft paper Substances 0.000 description 7
- 150000004804 polysaccharides Chemical class 0.000 description 7
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 6
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 6
- 229910001873 dinitrogen Inorganic materials 0.000 description 6
- 230000006872 improvement Effects 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 5
- 229910052757 nitrogen Inorganic materials 0.000 description 5
- 230000036284 oxygen consumption Effects 0.000 description 5
- 229920000151 polyglycol Polymers 0.000 description 5
- 239000010695 polyglycol Substances 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- LUEWUZLMQUOBSB-FSKGGBMCSA-N (2s,3s,4s,5s,6r)-2-[(2r,3s,4r,5r,6s)-6-[(2r,3s,4r,5s,6s)-4,5-dihydroxy-2-(hydroxymethyl)-6-[(2r,4r,5s,6r)-4,5,6-trihydroxy-2-(hydroxymethyl)oxan-3-yl]oxyoxan-3-yl]oxy-4,5-dihydroxy-2-(hydroxymethyl)oxan-3-yl]oxy-6-(hydroxymethyl)oxane-3,4,5-triol Chemical compound O[C@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1O[C@@H]1[C@@H](CO)O[C@@H](O[C@@H]2[C@H](O[C@@H](OC3[C@H](O[C@@H](O)[C@@H](O)[C@H]3O)CO)[C@@H](O)[C@H]2O)CO)[C@H](O)[C@H]1O LUEWUZLMQUOBSB-FSKGGBMCSA-N 0.000 description 4
- QXKAIJAYHKCRRA-UHFFFAOYSA-N D-lyxonic acid Natural products OCC(O)C(O)C(O)C(O)=O QXKAIJAYHKCRRA-UHFFFAOYSA-N 0.000 description 4
- 229920002581 Glucomannan Polymers 0.000 description 4
- 150000007513 acids Chemical class 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 229940046240 glucomannan Drugs 0.000 description 4
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 description 4
- 230000008929 regeneration Effects 0.000 description 4
- 238000011069 regeneration method Methods 0.000 description 4
- 229920001221 xylan Polymers 0.000 description 4
- 150000004823 xylans Chemical class 0.000 description 4
- JWPRWTACQJPGKP-UHFFFAOYSA-N 2-(9,10-dioxoanthracen-1-yl)acetic acid Chemical compound O=C1C2=CC=CC=C2C(=O)C2=C1C=CC=C2CC(=O)O JWPRWTACQJPGKP-UHFFFAOYSA-N 0.000 description 3
- 229930192627 Naphthoquinone Natural products 0.000 description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000004061 bleaching Methods 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 3
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 3
- 235000019341 magnesium sulphate Nutrition 0.000 description 3
- 150000002791 naphthoquinones Chemical class 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 229910000029 sodium carbonate Inorganic materials 0.000 description 3
- 125000001424 substituent group Chemical group 0.000 description 3
- 229910052717 sulfur Inorganic materials 0.000 description 3
- 239000011593 sulfur Substances 0.000 description 3
- 150000003464 sulfur compounds Chemical class 0.000 description 3
- HSKPJQYAHCKJQC-UHFFFAOYSA-N 1-ethylanthracene-9,10-dione Chemical compound O=C1C2=CC=CC=C2C(=O)C2=C1C=CC=C2CC HSKPJQYAHCKJQC-UHFFFAOYSA-N 0.000 description 2
- VEPOHXYIFQMVHW-XOZOLZJESA-N 2,3-dihydroxybutanedioic acid (2S,3S)-3,4-dimethyl-2-phenylmorpholine Chemical compound OC(C(O)C(O)=O)C(O)=O.C[C@H]1[C@@H](OCCN1C)c1ccccc1 VEPOHXYIFQMVHW-XOZOLZJESA-N 0.000 description 2
- IJJWOSAXNHWBPR-HUBLWGQQSA-N 5-[(3as,4s,6ar)-2-oxo-1,3,3a,4,6,6a-hexahydrothieno[3,4-d]imidazol-4-yl]-n-(6-hydrazinyl-6-oxohexyl)pentanamide Chemical compound N1C(=O)N[C@@H]2[C@H](CCCCC(=O)NCCCCCC(=O)NN)SC[C@@H]21 IJJWOSAXNHWBPR-HUBLWGQQSA-N 0.000 description 2
- QXKAIJAYHKCRRA-JJYYJPOSSA-N D-arabinonic acid Chemical group OC[C@@H](O)[C@@H](O)[C@H](O)C(O)=O QXKAIJAYHKCRRA-JJYYJPOSSA-N 0.000 description 2
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- PCNDJXKNXGMECE-UHFFFAOYSA-N Phenazine Natural products C1=CC=CC2=NC3=CC=CC=C3N=C21 PCNDJXKNXGMECE-UHFFFAOYSA-N 0.000 description 2
- 125000001931 aliphatic group Chemical group 0.000 description 2
- 150000001491 aromatic compounds Chemical class 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 238000005056 compaction Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000008103 glucose Substances 0.000 description 2
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 description 2
- 125000004029 hydroxymethyl group Chemical group [H]OC([H])([H])* 0.000 description 2
- 229920005610 lignin Polymers 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 230000036961 partial effect Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 150000003568 thioethers Chemical class 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- AZQWKYJCGOJGHM-UHFFFAOYSA-N 1,4-benzoquinone Chemical compound O=C1C=CC(=O)C=C1 AZQWKYJCGOJGHM-UHFFFAOYSA-N 0.000 description 1
- CPHUZRIOZHJDGD-UHFFFAOYSA-N 1-(2-hydroxyethyl)anthracene-9,10-dione Chemical compound O=C1C2=CC=CC=C2C(=O)C2=C1C=CC=C2CCO CPHUZRIOZHJDGD-UHFFFAOYSA-N 0.000 description 1
- SFSLTRCPISPSKB-UHFFFAOYSA-N 10-methylideneanthracen-9-one Chemical compound C1=CC=C2C(=C)C3=CC=CC=C3C(=O)C2=C1 SFSLTRCPISPSKB-UHFFFAOYSA-N 0.000 description 1
- DPZHKLJPVMYFCU-UHFFFAOYSA-N 2-(5-bromopyridin-2-yl)acetonitrile Chemical compound BrC1=CC=C(CC#N)N=C1 DPZHKLJPVMYFCU-UHFFFAOYSA-N 0.000 description 1
- ZBMRKNMTMPPMMK-UHFFFAOYSA-N 2-amino-4-[hydroxy(methyl)phosphoryl]butanoic acid;azane Chemical compound [NH4+].CP(O)(=O)CCC(N)C([O-])=O ZBMRKNMTMPPMMK-UHFFFAOYSA-N 0.000 description 1
- PCFMUWBCZZUMRX-UHFFFAOYSA-N 9,10-Dihydroxyanthracene Chemical compound C1=CC=C2C(O)=C(C=CC=C3)C3=C(O)C2=C1 PCFMUWBCZZUMRX-UHFFFAOYSA-N 0.000 description 1
- PTKWYSNDTXDBIZ-UHFFFAOYSA-N 9,10-dioxoanthracene-1,2-disulfonic acid Chemical compound C1=CC=C2C(=O)C3=C(S(O)(=O)=O)C(S(=O)(=O)O)=CC=C3C(=O)C2=C1 PTKWYSNDTXDBIZ-UHFFFAOYSA-N 0.000 description 1
- 241000609240 Ambelania acida Species 0.000 description 1
- 235000018185 Betula X alpestris Nutrition 0.000 description 1
- 235000018212 Betula X uliginosa Nutrition 0.000 description 1
- GAWIXWVDTYZWAW-UHFFFAOYSA-N C[CH]O Chemical group C[CH]O GAWIXWVDTYZWAW-UHFFFAOYSA-N 0.000 description 1
- 244000025254 Cannabis sativa Species 0.000 description 1
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 description 1
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 description 1
- QXKAIJAYHKCRRA-UZBSEBFBSA-N D-lyxonic acid Chemical group OC[C@@H](O)[C@H](O)[C@H](O)C(O)=O QXKAIJAYHKCRRA-UZBSEBFBSA-N 0.000 description 1
- RGHNJXZEOKUKBD-MBMOQRBOSA-N D-mannonic acid Chemical group OC[C@@H](O)[C@@H](O)[C@H](O)[C@H](O)C(O)=O RGHNJXZEOKUKBD-MBMOQRBOSA-N 0.000 description 1
- QXKAIJAYHKCRRA-FLRLBIABSA-N D-xylonic acid Chemical compound OC[C@@H](O)[C@H](O)[C@@H](O)C(O)=O QXKAIJAYHKCRRA-FLRLBIABSA-N 0.000 description 1
- 229920002488 Hemicellulose Polymers 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 244000273256 Phragmites communis Species 0.000 description 1
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 235000008582 Pinus sylvestris Nutrition 0.000 description 1
- 241000218626 Pinus sylvestris Species 0.000 description 1
- 229920000388 Polyphosphate Polymers 0.000 description 1
- WTKZEGDFNFYCGP-UHFFFAOYSA-N Pyrazole Chemical compound C=1C=NNC=1 WTKZEGDFNFYCGP-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- IDCBOTIENDVCBQ-UHFFFAOYSA-N TEPP Chemical compound CCOP(=O)(OCC)OP(=O)(OCC)OCC IDCBOTIENDVCBQ-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 239000010905 bagasse Substances 0.000 description 1
- 125000005605 benzo group Chemical group 0.000 description 1
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 description 1
- 235000009120 camo Nutrition 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000011203 carbon fibre reinforced carbon Substances 0.000 description 1
- 125000002057 carboxymethyl group Chemical group [H]OC(=O)C([H])([H])[*] 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 235000005607 chanvre indien Nutrition 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000003776 cleavage reaction Methods 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 150000002169 ethanolamines Chemical class 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 229930182478 glucoside Natural products 0.000 description 1
- 125000002791 glucosyl group Chemical group C1([C@H](O)[C@@H](O)[C@H](O)[C@H](O1)CO)* 0.000 description 1
- 239000011487 hemp Substances 0.000 description 1
- 150000002391 heterocyclic compounds Chemical class 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 125000000687 hydroquinonyl group Chemical group C1(O)=C(C=C(O)C=C1)* 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 159000000003 magnesium salts Chemical class 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 150000002697 manganese compounds Chemical class 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- PEQJBOMPGWYIRO-UHFFFAOYSA-N n-ethyl-3,4-dimethoxyaniline Chemical group CCNC1=CC=C(OC)C(OC)=C1 PEQJBOMPGWYIRO-UHFFFAOYSA-N 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 150000002926 oxygen Chemical class 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 239000001205 polyphosphate Substances 0.000 description 1
- 235000011176 polyphosphates Nutrition 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000011122 softwood Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
- 150000008163 sugars Chemical class 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 125000000969 xylosyl group Chemical group C1([C@H](O)[C@@H](O)[C@H](O)CO1)* 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C1/00—Pretreatment of the finely-divided materials before digesting
- D21C1/08—Pretreatment of the finely-divided materials before digesting with oxygen-generating compounds
Landscapes
- Paper (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE7809959A SE413785B (sv) | 1978-09-22 | 1978-09-22 | Forfarande for uppslutning av lignocellulosahaltiga material genom alkalisk kokning i nervaro av ett tillsatsemne av redoxtyp |
| CA000384551A CA1162703A (en) | 1978-09-22 | 1981-08-25 | Process for the conversion of lignocellulosic material to cellulose pulp by alkaline preoxidation followed by alkaline oxygen-free digestion, both in the presence of a redox additive |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5545888A JPS5545888A (en) | 1980-03-31 |
| JPS6257756B2 true JPS6257756B2 (US06653308-20031125-C00199.png) | 1987-12-02 |
Family
ID=25669415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11406379A Granted JPS5545888A (en) | 1978-09-22 | 1979-09-04 | Digesting of lignocellulose material alkali digestion |
Country Status (8)
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6371454U (US06653308-20031125-C00199.png) * | 1986-10-29 | 1988-05-13 |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE413785B (sv) * | 1978-09-22 | 1980-06-23 | Mo Och Domsjoe Ab | Forfarande for uppslutning av lignocellulosahaltiga material genom alkalisk kokning i nervaro av ett tillsatsemne av redoxtyp |
| JPS57185032A (en) * | 1982-03-02 | 1982-11-15 | Canon Inc | X-ray photographing device |
| AU5088885A (en) * | 1985-11-29 | 1987-06-04 | Gippsland Institute of Advanced Education, The | The production of hard compact carbonaceous material through water/acid/alkali treatment |
| SE520956C2 (sv) * | 2001-12-05 | 2003-09-16 | Kvaerner Pulping Tech | Kontinuerlig kokning med extra uppehållstid för avdragen vätska utanför kokaren |
| US7842161B2 (en) * | 2006-12-18 | 2010-11-30 | The University Of Maine System Board Of Trustees | Pre-extraction and solvent pulping of lignocellulosic material |
| US7824521B2 (en) * | 2006-12-18 | 2010-11-02 | University Of Maine System Board Of Trustees | Process of treating a lignocellulosic material with hemicellulose pre-extraction and hemicellulose adsorption |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE360128C (sv) * | 1970-08-25 | 1983-10-31 | Mo Och Domsjoe Ab | Sett att bleka cellulosamassa med en syreinnehallande gas i nervaro av alkali |
| CA986662A (en) * | 1973-05-01 | 1976-04-06 | David L. Mccandless | Pretreatment of lignocellulosic material with anthraquinone salts in alkaline pulping |
| US4089737A (en) * | 1974-02-18 | 1978-05-16 | Toyo Pulp Company, Ltd. | Delignification of cellulosic material with an alkaline aqueous medium containing oxygen dissolved therein |
| US4091749A (en) * | 1975-01-02 | 1978-05-30 | Macmillan Bloedel Limited | Alkaline pulping of lignocellulosic material with amine pretreatment |
| FI51833C (US06653308-20031125-C00199.png) * | 1975-03-18 | 1978-01-24 | Ahlstroem Oy | |
| CA1073161A (en) * | 1975-09-05 | 1980-03-11 | Canadian Industries Limited | Delignification process |
| SE7612248L (sv) * | 1976-11-03 | 1978-05-04 | Mo Och Domsjoe Ab | Kokning av lignocellulosahaltiga material |
| US4127439A (en) * | 1977-01-28 | 1978-11-28 | Crown Zellerbach Corporation | Pretreatment of lignocellulose with anthraquinone prior to pulping |
| US4134787A (en) * | 1978-05-26 | 1979-01-16 | International Paper Company | Delignification of lignocellulosic material with an alkaline liquor containing a cyclic amino compound |
| SE413785B (sv) * | 1978-09-22 | 1980-06-23 | Mo Och Domsjoe Ab | Forfarande for uppslutning av lignocellulosahaltiga material genom alkalisk kokning i nervaro av ett tillsatsemne av redoxtyp |
-
1978
- 1978-09-22 SE SE7809959A patent/SE413785B/sv not_active IP Right Cessation
-
1979
- 1979-09-04 JP JP11406379A patent/JPS5545888A/ja active Granted
- 1979-09-04 AU AU50572/79A patent/AU529117B2/en not_active Ceased
- 1979-09-18 FI FI792898A patent/FI68679C/fi not_active IP Right Cessation
- 1979-09-20 BR BR7906010A patent/BR7906010A/pt unknown
- 1979-09-21 FR FR7923503A patent/FR2436845A1/fr active Granted
- 1979-09-24 CA CA336,240A patent/CA1129163A/en not_active Expired
-
1981
- 1981-08-24 US US06/295,923 patent/US4561936A/en not_active Expired - Fee Related
- 1981-08-25 CA CA000384551A patent/CA1162703A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6371454U (US06653308-20031125-C00199.png) * | 1986-10-29 | 1988-05-13 |
Also Published As
| Publication number | Publication date |
|---|---|
| CA1129163A (en) | 1982-08-10 |
| JPS5545888A (en) | 1980-03-31 |
| FI792898A (fi) | 1980-03-23 |
| AU5057279A (en) | 1980-03-27 |
| BR7906010A (pt) | 1980-06-03 |
| FI68679B (fi) | 1985-06-28 |
| FR2436845A1 (fr) | 1980-04-18 |
| CA1162703A (en) | 1984-02-28 |
| FR2436845B1 (US06653308-20031125-C00199.png) | 1983-01-28 |
| US4561936A (en) | 1985-12-31 |
| AU529117B2 (en) | 1983-05-26 |
| SE413785B (sv) | 1980-06-23 |
| FI68679C (fi) | 1985-10-10 |
| SE7809959L (sv) | 1980-03-23 |
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