EP2379687A1 - Wasserbasierende hydraulikflüssigkeiten enthaltend dithiodi(arylcarbonsäuren) - Google Patents
Wasserbasierende hydraulikflüssigkeiten enthaltend dithiodi(arylcarbonsäuren)Info
- Publication number
- EP2379687A1 EP2379687A1 EP09767971A EP09767971A EP2379687A1 EP 2379687 A1 EP2379687 A1 EP 2379687A1 EP 09767971 A EP09767971 A EP 09767971A EP 09767971 A EP09767971 A EP 09767971A EP 2379687 A1 EP2379687 A1 EP 2379687A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- hydraulic fluids
- formula
- fluids according
- group
- acid
- 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.)
- Granted
Links
- 239000012530 fluid Substances 0.000 title claims abstract description 71
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 38
- 239000002253 acid Substances 0.000 title claims description 38
- 150000007513 acids Chemical class 0.000 title claims description 22
- 125000003118 aryl group Chemical group 0.000 title claims description 10
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims abstract description 30
- 150000001875 compounds Chemical class 0.000 claims abstract description 18
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 16
- 239000001257 hydrogen Substances 0.000 claims abstract description 16
- 125000001424 substituent group Chemical group 0.000 claims abstract description 11
- 229910052783 alkali metal Inorganic materials 0.000 claims abstract description 8
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims abstract description 8
- 150000001340 alkali metals Chemical class 0.000 claims abstract description 7
- 125000005842 heteroatom Chemical group 0.000 claims abstract description 7
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229920000151 polyglycol Polymers 0.000 claims abstract description 4
- 239000010695 polyglycol Substances 0.000 claims abstract description 4
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims abstract 3
- -1 aromatic carboxylic acids Chemical class 0.000 claims description 47
- 238000005260 corrosion Methods 0.000 claims description 39
- 230000007797 corrosion Effects 0.000 claims description 36
- 239000003112 inhibitor Substances 0.000 claims description 25
- 239000000654 additive Substances 0.000 claims description 24
- 150000001412 amines Chemical class 0.000 claims description 17
- 239000003795 chemical substances by application Substances 0.000 claims description 15
- 239000000314 lubricant Substances 0.000 claims description 15
- 230000003472 neutralizing effect Effects 0.000 claims description 13
- 230000000996 additive effect Effects 0.000 claims description 12
- 229920001515 polyalkylene glycol Polymers 0.000 claims description 11
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical class CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 claims description 10
- 230000008014 freezing Effects 0.000 claims description 10
- 238000007710 freezing Methods 0.000 claims description 10
- 125000000217 alkyl group Chemical group 0.000 claims description 7
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 7
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 6
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 6
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 5
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 claims description 5
- 125000001931 aliphatic group Chemical group 0.000 claims description 4
- 150000001342 alkaline earth metals Chemical group 0.000 claims description 4
- 125000005843 halogen group Chemical group 0.000 claims description 4
- LBEMXJWGHIEXRA-UHFFFAOYSA-N 2-[(2-carboxyphenyl)disulfanyl]benzoic acid Chemical compound OC(=O)C1=CC=CC=C1SSC1=CC=CC=C1C(O)=O LBEMXJWGHIEXRA-UHFFFAOYSA-N 0.000 claims description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical group [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims description 3
- VBLZXGQFGDIFIP-UHFFFAOYSA-N 2-(benzenesulfonamido)hexanoic acid Chemical class CCCCC(C(O)=O)NS(=O)(=O)C1=CC=CC=C1 VBLZXGQFGDIFIP-UHFFFAOYSA-N 0.000 claims description 2
- UUWNZOZURBEYQD-UHFFFAOYSA-N N1=NN=CC=C1.NC(CCCCC(=O)O)(N)N Chemical compound N1=NN=CC=C1.NC(CCCCC(=O)O)(N)N UUWNZOZURBEYQD-UHFFFAOYSA-N 0.000 claims description 2
- 101100162169 Xenopus laevis adrm1-a gene Proteins 0.000 claims description 2
- 238000005299 abrasion Methods 0.000 claims description 2
- 150000004679 hydroxides Chemical class 0.000 claims description 2
- 229920000058 polyacrylate Polymers 0.000 claims description 2
- 229920001223 polyethylene glycol Polymers 0.000 claims description 2
- 229920000193 polymethacrylate Polymers 0.000 claims description 2
- 229920001451 polypropylene glycol Polymers 0.000 claims description 2
- 239000002562 thickening agent Substances 0.000 claims description 2
- 229910001854 alkali hydroxide Inorganic materials 0.000 claims 1
- 150000008044 alkali metal hydroxides Chemical class 0.000 claims 1
- 229910000272 alkali metal oxide Inorganic materials 0.000 claims 1
- 125000003342 alkenyl group Chemical group 0.000 claims 1
- 229910052736 halogen Inorganic materials 0.000 claims 1
- 150000002367 halogens Chemical class 0.000 claims 1
- 235000013772 propylene glycol Nutrition 0.000 claims 1
- SNOOUWRIMMFWNE-UHFFFAOYSA-M sodium;6-[(3,4,5-trimethoxybenzoyl)amino]hexanoate Chemical compound [Na+].COC1=CC(C(=O)NCCCCCC([O-])=O)=CC(OC)=C1OC SNOOUWRIMMFWNE-UHFFFAOYSA-M 0.000 claims 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract 2
- 229910021529 ammonia Inorganic materials 0.000 abstract 1
- 125000002950 monocyclic group Chemical group 0.000 abstract 1
- 125000004432 carbon atom Chemical group C* 0.000 description 15
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 description 13
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 13
- 239000000203 mixture Substances 0.000 description 13
- 150000002431 hydrogen Chemical group 0.000 description 11
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 9
- 150000003254 radicals Chemical class 0.000 description 9
- 125000002947 alkylene group Chemical group 0.000 description 7
- 150000003839 salts Chemical class 0.000 description 7
- 150000001298 alcohols Chemical class 0.000 description 6
- 238000005461 lubrication Methods 0.000 description 6
- 230000002195 synergetic effect Effects 0.000 description 6
- 125000004122 cyclic group Chemical group 0.000 description 5
- 230000001050 lubricating effect Effects 0.000 description 5
- 229910052757 nitrogen Inorganic materials 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 4
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 4
- 239000000178 monomer Substances 0.000 description 4
- 238000006116 polymerization reaction Methods 0.000 description 4
- YXIWHUQXZSMYRE-UHFFFAOYSA-N 1,3-benzothiazole-2-thiol Chemical class C1=CC=C2SC(S)=NC2=C1 YXIWHUQXZSMYRE-UHFFFAOYSA-N 0.000 description 3
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
- 150000007933 aliphatic carboxylic acids Chemical class 0.000 description 3
- 239000003963 antioxidant agent Substances 0.000 description 3
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 230000000994 depressogenic effect Effects 0.000 description 3
- 150000001991 dicarboxylic acids Chemical class 0.000 description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- 239000000975 dye Substances 0.000 description 3
- 238000005187 foaming Methods 0.000 description 3
- 239000008233 hard water Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 125000004433 nitrogen atom Chemical group N* 0.000 description 3
- XZRHNAFEYMSXRG-UHFFFAOYSA-N 2,5-dimethylbenzoic acid Chemical compound CC1=CC=C(C)C(C(O)=O)=C1 XZRHNAFEYMSXRG-UHFFFAOYSA-N 0.000 description 2
- LBLYYCQCTBFVLH-UHFFFAOYSA-N 2-Methylbenzenesulfonic acid Chemical compound CC1=CC=CC=C1S(O)(=O)=O LBLYYCQCTBFVLH-UHFFFAOYSA-N 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 description 2
- FBPFZTCFMRRESA-JGWLITMVSA-N D-glucitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-JGWLITMVSA-N 0.000 description 2
- ROSDSFDQCJNGOL-UHFFFAOYSA-N Dimethylamine Chemical compound CNC ROSDSFDQCJNGOL-UHFFFAOYSA-N 0.000 description 2
- QUSNBJAOOMFDIB-UHFFFAOYSA-N Ethylamine Chemical compound CCN QUSNBJAOOMFDIB-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- BAVYZALUXZFZLV-UHFFFAOYSA-N Methylamine Chemical compound NC BAVYZALUXZFZLV-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 description 2
- LWBHHRRTOZQPDM-UHFFFAOYSA-N Undecanedioic acid Natural products OC(=O)CCCCCCCCCC(O)=O LWBHHRRTOZQPDM-UHFFFAOYSA-N 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 239000004480 active ingredient Substances 0.000 description 2
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 125000003545 alkoxy group Chemical group 0.000 description 2
- OBETXYAYXDNJHR-UHFFFAOYSA-N alpha-ethylcaproic acid Natural products CCCCC(CC)C(O)=O OBETXYAYXDNJHR-UHFFFAOYSA-N 0.000 description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 2
- 150000001408 amides Chemical class 0.000 description 2
- CBTVGIZVANVGBH-UHFFFAOYSA-N aminomethyl propanol Chemical compound CC(C)(N)CO CBTVGIZVANVGBH-UHFFFAOYSA-N 0.000 description 2
- 125000000129 anionic group Chemical group 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- SRSXLGNVWSONIS-UHFFFAOYSA-N benzenesulfonic acid Chemical compound OS(=O)(=O)C1=CC=CC=C1 SRSXLGNVWSONIS-UHFFFAOYSA-N 0.000 description 2
- 229940092714 benzenesulfonic acid Drugs 0.000 description 2
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 2
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- 125000004093 cyano group Chemical group *C#N 0.000 description 2
- GHVNFZFCNZKVNT-UHFFFAOYSA-N decanoic acid Chemical compound CCCCCCCCCC(O)=O GHVNFZFCNZKVNT-UHFFFAOYSA-N 0.000 description 2
- 235000014113 dietary fatty acids Nutrition 0.000 description 2
- 238000007865 diluting Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 239000000194 fatty acid Chemical class 0.000 description 2
- 229930195729 fatty acid Chemical class 0.000 description 2
- 150000004665 fatty acids Chemical class 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 125000001072 heteroaryl group Chemical group 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002462 imidazolines Chemical class 0.000 description 2
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 2
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 231100000053 low toxicity Toxicity 0.000 description 2
- 239000003879 lubricant additive Substances 0.000 description 2
- 239000002480 mineral oil Substances 0.000 description 2
- 235000010446 mineral oil Nutrition 0.000 description 2
- CXMXRPHRNRROMY-UHFFFAOYSA-N n-Decanedioic acid Natural products OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 description 2
- 150000002825 nitriles Chemical class 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
- 239000003921 oil Substances 0.000 description 2
- 125000005702 oxyalkylene group Chemical group 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- LPNBBFKOUUSUDB-UHFFFAOYSA-N p-toluic acid Chemical compound CC1=CC=C(C(O)=O)C=C1 LPNBBFKOUUSUDB-UHFFFAOYSA-N 0.000 description 2
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 2
- 150000003014 phosphoric acid esters Chemical class 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- WGYKZJWCGVVSQN-UHFFFAOYSA-N propylamine Chemical compound CCCN WGYKZJWCGVVSQN-UHFFFAOYSA-N 0.000 description 2
- 239000011814 protection agent Substances 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 239000013535 sea water Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000000600 sorbitol Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 150000005846 sugar alcohols Polymers 0.000 description 2
- 150000003464 sulfur compounds Chemical class 0.000 description 2
- 150000003557 thiazoles Chemical class 0.000 description 2
- GETQZCLCWQTVFV-UHFFFAOYSA-N trimethylamine Chemical compound CN(C)C GETQZCLCWQTVFV-UHFFFAOYSA-N 0.000 description 2
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- OBETXYAYXDNJHR-SSDOTTSWSA-M (2r)-2-ethylhexanoate Chemical compound CCCC[C@@H](CC)C([O-])=O OBETXYAYXDNJHR-SSDOTTSWSA-M 0.000 description 1
- NAWXUBYGYWOOIX-SFHVURJKSA-N (2s)-2-[[4-[2-(2,4-diaminoquinazolin-6-yl)ethyl]benzoyl]amino]-4-methylidenepentanedioic acid Chemical compound C1=CC2=NC(N)=NC(N)=C2C=C1CCC1=CC=C(C(=O)N[C@@H](CC(=C)C(O)=O)C(O)=O)C=C1 NAWXUBYGYWOOIX-SFHVURJKSA-N 0.000 description 1
- YPFDHNVEDLHUCE-UHFFFAOYSA-N 1,3-propanediol Substances OCCCO YPFDHNVEDLHUCE-UHFFFAOYSA-N 0.000 description 1
- 229940035437 1,3-propanediol Drugs 0.000 description 1
- WGAOZGUUHIBABN-UHFFFAOYSA-N 1-aminopentan-1-ol Chemical compound CCCCC(N)O WGAOZGUUHIBABN-UHFFFAOYSA-N 0.000 description 1
- QFGCFKJIPBRJGM-UHFFFAOYSA-N 12-[(2-methylpropan-2-yl)oxy]-12-oxododecanoic acid Chemical compound CC(C)(C)OC(=O)CCCCCCCCCCC(O)=O QFGCFKJIPBRJGM-UHFFFAOYSA-N 0.000 description 1
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- SWKPGMVENNYLFK-UHFFFAOYSA-N 2-(dipropylamino)ethanol Chemical compound CCCN(CCC)CCO SWKPGMVENNYLFK-UHFFFAOYSA-N 0.000 description 1
- MXZROAOUCUVNHX-UHFFFAOYSA-N 2-Aminopropanol Chemical compound CCC(N)O MXZROAOUCUVNHX-UHFFFAOYSA-N 0.000 description 1
- XNWFRZJHXBZDAG-UHFFFAOYSA-N 2-METHOXYETHANOL Chemical compound COCCO XNWFRZJHXBZDAG-UHFFFAOYSA-N 0.000 description 1
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- GVNHOISKXMSMPX-UHFFFAOYSA-N 2-[butyl(2-hydroxyethyl)amino]ethanol Chemical compound CCCCN(CCO)CCO GVNHOISKXMSMPX-UHFFFAOYSA-N 0.000 description 1
- IOAOAKDONABGPZ-UHFFFAOYSA-N 2-amino-2-ethylpropane-1,3-diol Chemical compound CCC(N)(CO)CO IOAOAKDONABGPZ-UHFFFAOYSA-N 0.000 description 1
- JCBPETKZIGVZRE-UHFFFAOYSA-N 2-aminobutan-1-ol Chemical compound CCC(N)CO JCBPETKZIGVZRE-UHFFFAOYSA-N 0.000 description 1
- MNUPQNLRUOASLG-UHFFFAOYSA-N 2-aminobutane-1,1-diol Chemical compound CCC(N)C(O)O MNUPQNLRUOASLG-UHFFFAOYSA-N 0.000 description 1
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- AGNTUZCMJBTHOG-UHFFFAOYSA-N 3-[3-(2,3-dihydroxypropoxy)-2-hydroxypropoxy]propane-1,2-diol Chemical compound OCC(O)COCC(O)COCC(O)CO AGNTUZCMJBTHOG-UHFFFAOYSA-N 0.000 description 1
- XRHGYUZYPHTUJZ-UHFFFAOYSA-N 4-chlorobenzoic acid Chemical compound OC(=O)C1=CC=C(Cl)C=C1 XRHGYUZYPHTUJZ-UHFFFAOYSA-N 0.000 description 1
- OTLNPYWUJOZPPA-UHFFFAOYSA-N 4-nitrobenzoic acid Chemical compound OC(=O)C1=CC=C([N+]([O-])=O)C=C1 OTLNPYWUJOZPPA-UHFFFAOYSA-N 0.000 description 1
- YQHNAEHMBRYCCB-UHFFFAOYSA-N 5-[(6-carboxyquinolin-5-yl)disulfanyl]quinoline-6-carboxylic acid Chemical compound C1=CC=C2C(SSC3=C4C=CC=NC4=CC=C3C(=O)O)=C(C(O)=O)C=CC2=N1 YQHNAEHMBRYCCB-UHFFFAOYSA-N 0.000 description 1
- SLXKOJJOQWFEFD-UHFFFAOYSA-N 6-aminohexanoic acid Chemical compound NCCCCCC(O)=O SLXKOJJOQWFEFD-UHFFFAOYSA-N 0.000 description 1
- 239000005711 Benzoic acid Substances 0.000 description 1
- 125000003358 C2-C20 alkenyl group Chemical group 0.000 description 1
- 125000000882 C2-C6 alkenyl group Chemical group 0.000 description 1
- GAWIXWVDTYZWAW-UHFFFAOYSA-N C[CH]O Chemical group C[CH]O GAWIXWVDTYZWAW-UHFFFAOYSA-N 0.000 description 1
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- RPNUMPOLZDHAAY-UHFFFAOYSA-N Diethylenetriamine Chemical compound NCCNCCN RPNUMPOLZDHAAY-UHFFFAOYSA-N 0.000 description 1
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- AKNUHUCEWALCOI-UHFFFAOYSA-N N-ethyldiethanolamine Chemical compound OCCN(CC)CCO AKNUHUCEWALCOI-UHFFFAOYSA-N 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000007983 Tris buffer Substances 0.000 description 1
- 239000001361 adipic acid Substances 0.000 description 1
- 235000011037 adipic acid Nutrition 0.000 description 1
- 229910001413 alkali metal ion Inorganic materials 0.000 description 1
- 229910001420 alkaline earth metal ion Inorganic materials 0.000 description 1
- 150000003973 alkyl amines Chemical class 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- 150000005840 aryl radicals Chemical class 0.000 description 1
- 235000010233 benzoic acid Nutrition 0.000 description 1
- 150000001558 benzoic acid derivatives Chemical class 0.000 description 1
- 238000006065 biodegradation reaction Methods 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
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
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- ZUHZZVMEUAUWHY-UHFFFAOYSA-N n,n-dimethylpropan-1-amine Chemical compound CCCN(C)C ZUHZZVMEUAUWHY-UHFFFAOYSA-N 0.000 description 1
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- 125000000913 palmityl group Chemical group [H]C([*])([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])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
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- 229920000166 polytrimethylene carbonate Polymers 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 230000005588 protonation Effects 0.000 description 1
- 125000000719 pyrrolidinyl group Chemical group 0.000 description 1
- 125000004079 stearyl group Chemical group [H]C([*])([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])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 125000004434 sulfur atom Chemical group 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- FAGUFWYHJQFNRV-UHFFFAOYSA-N tetraethylenepentamine Chemical compound NCCNCCNCCNCCN FAGUFWYHJQFNRV-UHFFFAOYSA-N 0.000 description 1
- 125000003944 tolyl group Chemical group 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- 125000005270 trialkylamine group Chemical group 0.000 description 1
- 125000002889 tridecyl group Chemical group [H]C([*])([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])[H] 0.000 description 1
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 description 1
- LENZDBCJOHFCAS-UHFFFAOYSA-N tris Chemical compound OCC(N)(CO)CO LENZDBCJOHFCAS-UHFFFAOYSA-N 0.000 description 1
Classifications
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- C10M135/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing sulfur, selenium or tellurium
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- C10M135/28—Thiols; Sulfides; Polysulfides containing sulfur atoms bound to a carbon atom of a six-membered aromatic ring
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- C10M173/00—Lubricating compositions containing more than 10% water
- C10M173/02—Lubricating compositions containing more than 10% water not containing mineral or fatty oils
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- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
- C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
- C23F11/10—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using organic inhibitors
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- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
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- C23F11/10—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using organic inhibitors
- C23F11/16—Sulfur-containing compounds
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/04—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions containing sulfur-to-oxygen bonds, i.e. sulfones, sulfoxides
- C10M2219/044—Sulfonic acids, Derivatives thereof, e.g. neutral salts
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/08—Thiols; Sulfides; Polysulfides; Mercaptals
- C10M2219/082—Thiols; Sulfides; Polysulfides; Mercaptals containing sulfur atoms bound to acyclic or cycloaliphatic carbon atoms
- C10M2219/086—Thiols; Sulfides; Polysulfides; Mercaptals containing sulfur atoms bound to acyclic or cycloaliphatic carbon atoms containing sulfur atoms bound to carbon atoms of six-membered aromatic rings
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
- C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
- C10M2223/04—Phosphate esters
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2010/00—Metal present as such or in compounds
- C10N2010/02—Groups 1 or 11
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2010/00—Metal present as such or in compounds
- C10N2010/04—Groups 2 or 12
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/12—Inhibition of corrosion, e.g. anti-rust agents or anti-corrosives
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/08—Hydraulic fluids, e.g. brake-fluids
Definitions
- the present invention relates to water-based hydraulic fluids containing dithiodi (arylcarboxylic acids) and having improved performance properties, and to the use of dithiodi (arylcarboxylic acids) as anticorrosive or lubricity additive in hydraulic fluids.
- Water-based hydraulic fluids are used in a wide variety of applications, particularly where hydraulic fluid containing mineral oil emanating from the hydraulic system is a source of fire hazards or environmental hazards. Typical fields of application are steel mills, forges, coal mining and oil production facilities as well as wind farms.
- a water-based hydraulic fluid typically contains the following components (described, for example, in DE-A-2 534 808 and T. Mang, W. Dressel: “Lubricants and Lubrication”, Wiley-VCH, Weinheim, 2001, Chapter 11.4. 6):
- pH adjusting agent eg, alkanolamine
- the pH is typically alkaline, usually pH> 9. Increasing the pH contributes to corrosion protection. decisive Significance comes after the above composition to the anti-corrosion and lubricants.
- EP-A-0 059 461 discloses, as a lubricant, polyalkylene glycols which also serve as corrosion inhibitors and the use of dithiophosphonates as lubricants.
- DE-A-2 534 808 describes oxalkylated polyamides of dicarboxylic acids and oligoamines which have improved lubricating properties and their use in water-based hydraulic fluids.
- US-41434066 discloses hydroxy- or nitro-substituted aromatic carboxylic acids as lubricants in aqueous hydraulic fluids.
- Sulfur compounds such as mercaptobenzothiazoles, dithiobis (thiazoles) and alkyl disulfides as lubricants in aqueous hydraulic fluids.
- WO-9634076 discloses as corrosion inhibitors in aqueous hydraulic fluids aliphatic carboxylic acids or their alkali metal or ammonium salts.
- EP-A-0 059 461 discloses carboxylic acid diethanolamides, amines and substituted imidazolines, fatty acid ethoxylates as corrosion inhibitors in aqueous hydraulic fluids.
- Ethoxylates and other alkoxylates, aliphatic carboxylic acids, in particular fatty acids, and aliphatic carboxylic acid alkanolamides are known for their strong foaming action on account of their surfactant structure.
- additives must have good ecotoxicological properties, especially if the hydraulic fluids are used in ecologically sensitive areas such as the North Sea or the Arctic Ocean.
- any hydraulic fluid additive used in North Sea oil production must meet OSPAR criteria that require good biodegradation and low toxicity.
- Many additives do not meet these criteria.
- imidazolines and mercaptobenzothiazoles are not approved due to their toxicity to marine organisms, so that often additives with poorer performance properties are used.
- the lowest possible use concentration of the additives is desirable. This is often complicated because additives that achieve a certain effect, eg. B. lubrication, often exert a negative influence on other properties, eg. B.
- Dithiodi (arylcarboxylic acids) of the formula 1 have very good corrosion protection properties, especially at high pH. It has furthermore been found that the dithiodi (arylcarboxylic acids) also have good lubricating properties sufficient for use in hydraulic fluids. In addition, they do not foam, are stable to hard water and electrolytes and have a low toxicity to aquatic organisms.
- a further, particularly positive property has been found that, in combination with water-soluble corrosion protection agents, a further improved corrosion protection can be achieved compared to the sole use of these water-soluble corrosion protection agents. Due to the synergistic effect of dithiodi (arylcarboxylic acids) with common water-soluble corrosion inhibitors, the use concentration of the additive package in the hydraulic fluid can be reduced.
- the dithiodi (arylcarboxylic acids) are compatible with the common additives disclosed in the above-mentioned prior art.
- the invention thus relates to water-based hydraulic fluids containing a) water, b) at least one glycol, a polyglycol or both, and c) from 0.1 to 30% by weight of at least one compound of the formula 1,
- M is hydrogen, alkali metal, alkaline earth metal or ammonium
- Ar 1 and Ar 2 independently of one another mononuclear or polynuclear aromatic groups which may carry substituents, or may contain heteroatoms mean.
- Another object of the invention is the use of the compounds of formula (1) in amounts of 0.1 to 30 wt .-% as corrosion inhibitors or lubricity improvers in water-based hydraulic fluids.
- Another object of the invention is a method for improving the anti-corrosion and lubricating properties of water-based
- Hydraulic fluids by adding 0.1 to 30 wt .-% of a compound of formula (1) to a hydraulic fluid.
- the substituents M are hydrogen, in the case of salts are alkali metal ions, alkaline earth metal ions or
- Ammonium ions are preferably compounds formed by protonation from the amines described below as neutralizing agents.
- the aryl radicals Ar 1 and Ar 2 may be the same or different. However, due to manufacturing reasons, compounds in which both aromatics are the same are preferred.
- Ar 1 and Ar 2 are mononuclear or binuclear aromatic groups, especially mononuclear aromatic groups.
- Ar 1 and Ar 2 are preferably mononuclear benzoic acid derivatives of the formulas 2a-2c.
- Ar 1 and Ar 2 may contain heteroatoms.
- the two free valences denote the binding sites to the sulfide bridge and to the COOM group.
- the substituents R 1 -R 4 in the radicals Ar 1 and Ar 2 are preferably independently hydrogen, linear, branched and / or cyclic C- ⁇ -C 2 o-alkyl and / or C 2 - to C 2 o-alkenyl , Halogen atoms, nitro groups, amino groups, alkoxy groups, hydroxy or hydroxy-C 1 -C 20 -alkyl groups.
- the alkyl or alkenyl radicals are preferably short-chain radicals having 1 to 6 carbon atoms which do not deteriorate the solubility in water too much, eg.
- further compounds which carry only one further substituent on the aromatic ring ie in which three of R 1 -R 4 are hydrogen. Most preferably, then, the remainder, which is not hydrogen, is in the meta or para position to the sulfide bridge.
- Ar 1 and Ar 2 have the substitution pattern of (2a) and (2c), particularly preferred is the substitution pattern of formula (2a).
- each of the radicals Ar 1 and Ar 2 is a mononuclear aromatic radical of the formula (3) X
- the free valence indicates the position of the sulfide bridge
- X represents a C r to C 4 alkyl group, a nitro group or a halogen atom.
- the compound of the formula (1) corresponds to the formula (4)
- the compound of the formula (1) corresponds to the formula (5)
- X is particularly preferably in the para position to the sulfide bridge.
- X is a methyl or ethyl group.
- the formula (1) is dithiodibenzoic acid, ie R 1 , R 2 , R 3 and R 4 are H.
- the hydraulic fluids contain at least one further corrosion inhibitor in addition to the dithiodi (arylcarboxylic acids).
- Suitable corrosion inhibitors are benzenesulfonic acid amidocaproic acid, toluenesulfonic acid amidocaproic acid, benzenesulfonic acid (N-methyl) amidocaproic acid, toluenesulfonic acid (N-methyl) amidocaproic acid (all formula 6), alkanoylamidocarboxylic acids, especially isononanoylamidocaproic acid (formula (7)) and triazine-2,4,6-tris (aminohexanoic acid ) (Formula (8)), or the alkali, alkaline earth and amine salts of the compounds of formulas (6) - (8).
- R 5 , R 6 H or CH 3
- Suitable corrosion inhibitors are linear or branched C 6 - to C 8 -carboxylic acids such.
- suitable corrosion inhibitors are alkanesulfonic acid amides, alkanesulfonamidocarboxylic acids and Phtalklareraumamide.
- the salts of the compounds listed above can also be used.
- salts of one of the abovementioned corrosion inhibitors are used, these are preferably salts which are formed by reaction of the free acids with a neutralizing agent which is contained in the hydraulic fluid.
- the hydraulic fluids preferably contain 1-15%, especially 1-10% of the dithiodi (arylcarboxylic acid) of the formula (1).
- the total amount of dithiodi (arylcarboxylic acid) and further corrosion inhibitor is generally 0.1-30%, preferably 1-10%, especially 1-5% corrosion inhibitor.
- the use concentration of dithiodi (arylcarboxylic acids) is then between 0.05 to 20%, preferably 0.5 to 5%, especially 0.5 to 3%.
- the concentrations stated as weight percentages of the used Corrosion inhibitor due to the higher molecular weight of the salts compared to the free acids correspondingly higher.
- the hydraulic fluid may contain a lubricant for reducing friction and abrasion.
- Suitable lubricants are amine, alkali metal or alkaline earth metal salts of alkyl or aryl phosphoric acid esters and / or amine, alkali metal or alkaline earth metal salts of the phosphoric acid esters of alkoxylated alcohols.
- polyalkylene glycols These can be obtained by anionic or metal-catalyzed polymerization of alkylene oxides of the formula (9) with mono-, di-, tri-, tetra- and polyfunctional alcohols or amines or mixtures thereof
- R 7 hydrogen, methyl, ethyl.
- the polymerization can be carried out sequentially (blockwise arrangement of the monomers) or with a mixture of the oxides (random arrangement of the monomers).
- Suitable starting alcohols for these polyalkylene glycols are, for. As ethylene glycol, propylene glycol, trimethylolpropane, glycerol, pentaerythritol, sorbitol and other polyhydric alcohols.
- Suitable amines are, for.
- the molecular weights of the polyalkylene glycols thus obtained may vary from 500 g / mol to 50,000 g / mol, usually the molecular weights are 2,000 to 10,000 g / mol.
- Suitable lubricants are sulfur compounds such as mercaptobenzothiazoles, dithiobis (thiazoles) and alkyl disulfides, thiophosphonates or inorganic compounds such as phosphoric acid or metal sulfides.
- the hydraulic fluid contains no lubricant, since the lubricity of the corrosion inhibitors, especially the dithiodi (arylcarboxylic acids) already sufficient.
- the hydraulic fluids of the invention are adjusted with a neutralizing agent to a pH of 8-12, particularly preferably 9-10. Suitable neutralizing agents are amines of the formula (10)
- R 8 , R 9 and R 10 independently of one another represent hydrogen or a hydrocarbon radical having 1 to 100 carbon atoms.
- R 8 and / or R 9 and / or R 10 independently of one another represent an aliphatic radical.
- This has preferably 1 to 24, more preferably 2 to 18 and especially 3 to 6 C atoms.
- the aliphatic radical may be linear, branched or cyclic. It can still be saturated or unsaturated. Preferably, the aliphatic radical is saturated.
- the aliphatic radical may carry substituents such as 5 hydroxy, C- ⁇ -C 5 alkoxy, cyano, nitrile, nitro and / or C -C 2 o-aryl groups such as phenyl.
- the C 5 -C 2O -aryl radicals in turn optionally substituted with halogen atoms, halogenated alkyl groups, C 1 -C 2O -AI alkyl-, C 2 -C 20 alkenyl, hydroxyl, Ci-C5 alkoxy such as methoxy -, amide, cyano, nitrile, and / or nitro groups.
- R 8 and / or R 9 and / or R 10 independently of one another are hydrogen, a C 1 -C 6 -alkyl, C 2 -C 6 -alkenyl or C 3 -C 6 -cycloalkyl radical and especially an alkyl radical having 1, 2, or 3 C atoms.
- radicals can carry up to three substituents.
- Particularly preferred aliphatic radicals R 8 and / or R 9 and / or R 10 are hydrogen, methyl, ethyl, hydroxyethyl, n-propyl, isopropyl, hydroxypropyl, n-butyl, isobutyl and tert-butyl, hydroxybutyl, n-hexyl, cyclohexyl, n-octyl, n-decyl, n-dodecyl, tridecyl, isotridecyl, tetradecyl, hexadecyl, octadecyl and methylphenyl.
- R 8 and R 9 together with the nitrogen atom to which they are attached form a ring.
- This ring has preferably 4 or more such as 4, 5, 6 or more ring members.
- Preferred further ring members are carbon, nitrogen, oxygen and sulfur atoms.
- the rings in turn may carry substituents such as alkyl radicals.
- Suitable ring structures are, for example, morpholinyl, pyrrolidinyl, piperidinyl, imidazolyl and azepanyl radicals.
- R 10 is H or an alkyl radical having 1 to 12 carbon atoms.
- R 8 and / or R 10 are independently an optionally substituted C 6 -C 2 aryl group or an optionally substituted heteroaromatic group having 5 to 12 ring members.
- R 8 , R 9 and / or R 10 independently of one another represent an alkyl radical interrupted by heteroatoms. Particularly preferred heteroatoms are oxygen and nitrogen.
- R 8 , R 9 and / or R 10 independently of one another are preferably radicals of the formula (11)
- R 12 is hydrogen, a hydrocarbon radical having 1 to 24 C atoms or a group of the formula -NR 13 R 14 , n is a number between 2 and 50, preferably between 3 and 25 and in particular between 4 and 10 and
- R 13 , R 14 independently of one another are hydrogen, an aliphatic radical having 1 to 24 C atoms and preferably 2 to 18 C atoms, an aryl group or heteroaryl group having 5 to 12 ring members, one Poly (oxyalkylene) group having 1 to 50 poly (oxyalkylene) units, wherein the polyoxyalkylene derived from alkylene oxide having 2 to 6 carbon atoms, or R 13 and R 14 together with the nitrogen atom to which they are attached, a ring with 4, 5, 6 or more ring members form, stand.
- R 8 , R 9 and / or R 10 independently of one another are preferably radicals of the formula (12)
- R 15 is an alkylene group having 2 to 6 carbon atoms, and preferably 2 to 4
- each R 16 is independently hydrogen, an alkyl or
- Hydroxyalkyl radical having up to 24 carbon atoms such as 2 to 20 carbon atoms, a polyoxyalkylene radical - (R 11 -O) p -R 12 , or a polyiminoalkylene radical - [R 15 -N (R 16 )] q - (R 16 ), wherein R 11 , R 12 , R 15 and R 16 have the meanings given above and q and p are independently from 1 to 50 and m is a number from 1 to 20 and preferably 2 to 10 such as three, four , five or six stands.
- the radicals of the formula (12) preferably contain 1 to 50, in particular 2 to 20, nitrogen atoms.
- Particularly preferred neutralizing agents are water-soluble alkylamines such as methylamine, dimethylamine, trimethylamine, ethylamine, diethylamine, triethylamine, propylamine and longer-chain mono-, di- and trialkylamines, provided that they are at least 1 wt .-%, preferably 1-5 wt .-% water-soluble ,
- the alkyl chains can be branched here.
- oligoamines such as ethylenediamine, diethylenetriamine, triethylenetetramine, tetraethylenepentamine, their higher homologs and mixtures of these.
- alkylated, especially methylated, representatives of these oligoamines such as N, N-dimethyldiethyleneamine, N, N-dimethylpropylamine and longer-chain and / or higher alkylated amines of the same construction principle.
- alkanolamines such as monoethanolamine, diethanolamine, triethanolamine, diglycolamine, triglycolamine and higher homologs, methyldiethanolamine, ethyldiethanolamine, propyldiethanolamine, butyldiethanolamine and longer-chain alkyldiethanolamines, where the alkyl radical may be cyclic and / or branched.
- alkanolamines are dialkylethanolamines, such as dimethylethanolamine, diethylethanolamine,
- amines such as 2-amino-2-methylpropanol (AMP), 2-aminopropanediol, 2-amino-2-ethylpropanediol, 2-aminobutanediol and other 2-aminoalkanols, aminoalkylamine alcohols, tris (hydroxylmethyl) aminomethane are suitable, as well as end-capped Representatives such as methylglycolamine, methyldiglycolamine and higher homologues, di (methylglycol) amine,
- Di (methyldiglycol) amine and its higher homologs and the corresponding triamines and polyalkylene glycol amines eg Jeffamine ® .
- mixtures of the abovementioned amines are used to adjust desired pH values.
- neutralizing agents are the oxides and hydroxides of the alkali and / or alkaline earth metals, such as.
- lithium hydroxide, sodium hydroxide, potassium hydroxide, calcium hydroxide and calcium oxide are examples of the alkali and / or alkaline earth metals, such as.
- the neutralizing agents mentioned are used in amounts suitable for the following reasons.
- This desired pH is 7 - 11, preferably 8 - 10, especially preferably 9-10.
- the amounts of neutralizing agent required for this purpose are generally between 0.1-10%.
- the hydraulic fluids according to the invention may contain, in addition to water, a freezing point depressant or viscosity regulator.
- Freezing point depressants are polyols, preferably comprising 2 to 10 OH groups. Examples of these are ethylene glycol, diethylene glycol, triethylene glycol and higher polyethylene glycols, propylene glycol, dipropylene glycol and higher polypropylene glycols, the corresponding methylglycols, ethyl, butyl and other alkylglycols and also alkylpropylene glycols. Likewise, glycerol, diglycerol, triglycerol and higher homologues, 1, 3-propanediol and its oligo- and polymers can be used. It is also possible to use mixtures of the compounds mentioned. Their concentration depends on the required freezing point, which can vary greatly depending on the application and field of application. 1-50% freezing point depressants are used, preferably 20-50%, particularly preferably 30-40%.
- Suitable viscosity regulators are polyacrylates, polymethacrylates and polyalkylene glycols, in particular high molecular weight polyalkylene glycols. These can be obtained by anionic or metal-catalyzed polymerization of alkylene oxides of the formula (9) or mixtures thereof with mono-, di-, tri-, tetra- and polyfunctional alcohols or amines
- R 7 hydrogen, methyl, ethyl.
- the polymerization can be carried out sequentially (blockwise arrangement of the monomers) or with a mixture of the oxides (random arrangement of the monomers).
- Suitable starting alcohols for these polyalkylene glycols are, for. As ethylene glycol, propylene glycol, trimethylolpropane, glycerol, pentaerythritol, sorbitol and other polyhydric alcohols.
- suitable Amines are z. As the compounds mentioned below as neutralizing agents, if they contain acidic NH bonds.
- polyalkylene glycols are usually not selected according to their molecular weight but according to their viscosity at 40 0 C or 50 0 C, which may be usually from a few mPas up to 50,000 mPas and more and depends on the application.
- the use concentration of the viscosity regulators depends on the desired viscosity and may be 1-50%, preferably 20-50%, particularly preferably 30-40%.
- Defoamers, dyes and antioxidants are used in the hydraulic fluid. In the preferred embodiment, but can be omitted for the reasons mentioned.
- the preparation of the hydraulic fluids of this invention can be accomplished by mixing at room temperature or elevated temperatures directly from the components, or by diluting a previously prepared additive package with water, or by diluting a previously prepared additive package with a mixture of water and the freezing point depressant. If the hydraulic fluid is prepared directly from the components, it is advisable to introduce the water and optionally the freezing point and the subsequent addition of further ingredients, preferably first the neutralizing agent, then the compound of formula (1), then - if necessary - the other lubricant and the additional corrosion inhibitors are added. Other additives such as defoamers, dyes, antioxidants and viscosity regulators are added at the end. If the additive package is prepared separately so water and the freezing point, if it is part of the additive package, presented, then the neutralizing agent is added and then the other components in the above order. At high viscosities, especially when the
- Freezing point depressant is not part of the additive package, a higher temperature than room temperature may be necessary during mixing, this temperature exceeds usually but not 80 to 100 0 C. For particularly high viscosities, the additive package can be diluted with water.
- Dithiodiarylcarboxylic acids of the formula (2a) are denoted below by o- (ortho), of the formula (2b) by m- (meta) and of the formula (2c) by p- (para).
- the use concentrations were chosen so that the hydraulic fluids achieve the desired corrosion protection (no corrosion at 15% application concentration).
- Example 1 (prior art) - hydraulic fluid A consisting of: water 43%
- Example 2 (Prior Art) - Hydraulic fluid B consisting of:
- Example 3 Hydraulic fluid C consisting of:
- Example 4 - hydraulic fluid D consisting of: water 44%
- Example 5 - hydraulic fluid E consisting of:
- Example 6 - Hydraulic fluid F consisting of:
- Example 8 - hydraulic fluid H consisting of: water 46%
- Example 9 - Hydraulic fluid I consisting of:
- Example 10 - Hydraulic fluid J consisting of:
- Example 12 - Hydraulic fluid L consisting of:
- the table demonstrates the improved efficacy and stability of the hydraulic fluids C to K according to the invention and in particular J (shows the synergistic effect with isononanoylamidocaproic acid).
- Examples 3 to 11 show the superior stability and low foaming of hydraulic fluids of the invention over the prior art.
- Examples 3-12 demonstrate the improved lubricity and anti-corrosion properties when using a dithiodi (arylcarboxylic acid) alone, as demonstrated by synergistic action with another anticorrosive agent, a reduced use concentration of the active ingredient combination lubricant / corrosion inhibitor (4% compared to at least 7% in Examples 1 to 11) can be achieved without losing effectiveness. Due to the synergistic effect of dithiodi (arylcarboxylic acids) with common water-soluble corrosion inhibitors, it is possible to reduce the use concentration of the additive package in the hydraulic fluid, as Example 12 shows in comparison to Examples 1 and 2 (known active ingredient combinations).
- Table 2 shows typical ecotoxicological data for corrosion and lubricant additives, as required by OSPAR for use in the North Sea.
- the requirements for OSPAR are fulfilled only by dithiodi (benzoic acid).
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- Chemical & Material Sciences (AREA)
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- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
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- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102008064004A DE102008064004B4 (de) | 2008-12-19 | 2008-12-19 | Wasserbasierende Hydraulikflüssigkeiten enthaltend Dithiodi(arylcarbonsäuren) oder deren Alkalimetall-, Erdalkalimetall- oder Ammoniumsalze |
| PCT/EP2009/008586 WO2010069464A1 (de) | 2008-12-19 | 2009-12-02 | Wasserbasierende hydraulikflüssigkeiten enthaltend dithiodi(arylcarbonsäuren) |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2379687A1 true EP2379687A1 (de) | 2011-10-26 |
| EP2379687B1 EP2379687B1 (de) | 2013-04-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP09767971.6A Not-in-force EP2379687B1 (de) | 2008-12-19 | 2009-12-02 | Wasserbasierende hydraulikflüssigkeiten enthaltend dithiodi(arylcarbonsäuren) |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US8759264B2 (de) |
| EP (1) | EP2379687B1 (de) |
| JP (1) | JP2012512286A (de) |
| CN (1) | CN102197120A (de) |
| BR (1) | BRPI0922643A2 (de) |
| DE (1) | DE102008064004B4 (de) |
| ES (1) | ES2408859T3 (de) |
| WO (1) | WO2010069464A1 (de) |
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| US9096812B2 (en) * | 2008-07-15 | 2015-08-04 | Macdermid Offshore Solutions, Llc | Environmental subsea control hydraulic fluid compositions |
| JP6084534B2 (ja) * | 2012-08-08 | 2017-02-22 | コスモ石油ルブリカンツ株式会社 | 含水系作動液 |
| CN103725365B (zh) * | 2012-10-15 | 2015-08-26 | 中国石油化工股份有限公司 | 一种水基液压液组合物 |
| US20140352961A1 (en) * | 2013-06-03 | 2014-12-04 | Tucc Technology, Llc | Concentrated Borate Crosslinking Solutions For Use In Hydraulic Fracturing Operations |
| US9238588B2 (en) * | 2013-08-02 | 2016-01-19 | Ecolab USA, Inc. | Organic disulfide based corrosion inhibitors |
| WO2015086516A1 (en) * | 2013-12-09 | 2015-06-18 | Mattias GRAHN | An aqueous lubricant composition, a method for making the same and uses thereof |
| CN104277902B (zh) * | 2014-09-12 | 2016-08-24 | 广州中机实业有限公司 | 一种重负荷金属加工全合成切削液及其制备方法与应用 |
| CN111039820A (zh) * | 2018-10-15 | 2020-04-21 | 中国石油天然气股份有限公司 | 水溶性防锈剂及其制备方法与应用 |
| CN112771142B (zh) * | 2018-10-26 | 2023-02-21 | 陶氏环球技术有限责任公司 | 可用于海底应用的具有可生物降解的聚亚烷基二醇流变改性剂的液压流体 |
| CN111019147A (zh) * | 2019-09-29 | 2020-04-17 | 昆明理工大学 | 一种金属有机骨架吸附剂、一步制备方法及其应用 |
| CN112940832A (zh) * | 2021-02-01 | 2021-06-11 | 国家能源集团宁夏煤业有限责任公司 | 煤基抗磨液压油及其制备方法 |
| CN113621434A (zh) * | 2021-08-18 | 2021-11-09 | 青岛华瑞泰格工贸有限公司 | 一种水乙二醇难燃液压液的制备方法 |
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-
2008
- 2008-12-19 DE DE102008064004A patent/DE102008064004B4/de not_active Expired - Fee Related
-
2009
- 2009-12-02 US US13/140,600 patent/US8759264B2/en not_active Expired - Fee Related
- 2009-12-02 JP JP2011541142A patent/JP2012512286A/ja active Pending
- 2009-12-02 BR BRPI0922643A patent/BRPI0922643A2/pt not_active IP Right Cessation
- 2009-12-02 EP EP09767971.6A patent/EP2379687B1/de not_active Not-in-force
- 2009-12-02 CN CN2009801423621A patent/CN102197120A/zh active Pending
- 2009-12-02 WO PCT/EP2009/008586 patent/WO2010069464A1/de not_active Ceased
- 2009-12-02 ES ES09767971T patent/ES2408859T3/es active Active
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| Title |
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| See references of WO2010069464A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| US20120040875A1 (en) | 2012-02-16 |
| DE102008064004B4 (de) | 2011-11-24 |
| WO2010069464A1 (de) | 2010-06-24 |
| CN102197120A (zh) | 2011-09-21 |
| JP2012512286A (ja) | 2012-05-31 |
| DE102008064004A1 (de) | 2010-07-01 |
| BRPI0922643A2 (pt) | 2016-01-05 |
| US8759264B2 (en) | 2014-06-24 |
| ES2408859T3 (es) | 2013-06-21 |
| EP2379687B1 (de) | 2013-04-24 |
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