CN1387946A - Bimetal cyanide catalyst and its prepn and application - Google Patents
Bimetal cyanide catalyst and its prepn and application Download PDFInfo
- Publication number
- CN1387946A CN1387946A CN 02115068 CN02115068A CN1387946A CN 1387946 A CN1387946 A CN 1387946A CN 02115068 CN02115068 CN 02115068 CN 02115068 A CN02115068 A CN 02115068A CN 1387946 A CN1387946 A CN 1387946A
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- Prior art keywords
- catalyst
- metal
- chelating agent
- silicone oil
- water
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Links
- 239000003054 catalyst Substances 0.000 title claims abstract description 115
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 title claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 56
- 238000000034 method Methods 0.000 claims abstract description 32
- 239000002738 chelating agent Substances 0.000 claims abstract description 28
- 229910052751 metal Inorganic materials 0.000 claims abstract description 27
- 239000002184 metal Substances 0.000 claims abstract description 26
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 25
- 238000002360 preparation method Methods 0.000 claims abstract description 24
- 230000000694 effects Effects 0.000 claims abstract description 19
- 229910052723 transition metal Inorganic materials 0.000 claims abstract description 15
- 150000003624 transition metals Chemical class 0.000 claims abstract description 15
- 238000007151 ring opening polymerisation reaction Methods 0.000 claims abstract description 13
- 229910001507 metal halide Inorganic materials 0.000 claims abstract description 8
- 150000005309 metal halides Chemical class 0.000 claims abstract description 8
- 239000011259 mixed solution Substances 0.000 claims abstract description 7
- 238000001035 drying Methods 0.000 claims abstract description 6
- 150000001875 compounds Chemical class 0.000 claims abstract 3
- DKGAVHZHDRPRBM-UHFFFAOYSA-N Tert-Butanol Chemical compound CC(C)(C)O DKGAVHZHDRPRBM-UHFFFAOYSA-N 0.000 claims description 51
- 229920002545 silicone oil Polymers 0.000 claims description 29
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 claims description 28
- 239000000203 mixture Substances 0.000 claims description 24
- 239000006184 cosolvent Substances 0.000 claims description 19
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 15
- 239000001294 propane Substances 0.000 claims description 14
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 13
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 12
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 12
- 239000011701 zinc Substances 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 11
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 10
- 239000013049 sediment Substances 0.000 claims description 10
- 229910052725 zinc Inorganic materials 0.000 claims description 10
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical group OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 9
- 229920001296 polysiloxane Polymers 0.000 claims description 8
- 239000002253 acid Substances 0.000 claims description 7
- 239000007864 aqueous solution Substances 0.000 claims description 7
- 238000013019 agitation Methods 0.000 claims description 6
- 239000012530 fluid Substances 0.000 claims description 6
- 125000000094 2-phenylethyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])C([H])([H])* 0.000 claims description 5
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 5
- 125000004177 diethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 5
- 229940008099 dimethicone Drugs 0.000 claims description 5
- 239000004205 dimethyl polysiloxane Substances 0.000 claims description 5
- 235000013870 dimethyl polysiloxane Nutrition 0.000 claims description 5
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims description 5
- 229920001921 poly-methyl-phenyl-siloxane Polymers 0.000 claims description 5
- 239000002904 solvent Substances 0.000 claims description 5
- MSXVEPNJUHWQHW-UHFFFAOYSA-N 2-methylbutan-2-ol Chemical compound CCC(C)(C)O MSXVEPNJUHWQHW-UHFFFAOYSA-N 0.000 claims description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 4
- 150000002825 nitriles Chemical class 0.000 claims description 4
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 claims description 3
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 claims description 3
- 125000002015 acyclic group Chemical group 0.000 claims description 3
- 150000001408 amides Chemical class 0.000 claims description 3
- 150000001412 amines Chemical class 0.000 claims description 3
- SBZXBUIDTXKZTM-UHFFFAOYSA-N diglyme Chemical compound COCCOCCOC SBZXBUIDTXKZTM-UHFFFAOYSA-N 0.000 claims description 3
- 150000002148 esters Chemical class 0.000 claims description 3
- 150000002576 ketones Chemical class 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 150000003462 sulfoxides Chemical class 0.000 claims description 3
- LZDKZFUFMNSQCJ-UHFFFAOYSA-N 1,2-diethoxyethane Chemical compound CCOCCOCC LZDKZFUFMNSQCJ-UHFFFAOYSA-N 0.000 claims description 2
- RRQYJINTUHWNHW-UHFFFAOYSA-N 1-ethoxy-2-(2-ethoxyethoxy)ethane Chemical compound CCOCCOCCOCC RRQYJINTUHWNHW-UHFFFAOYSA-N 0.000 claims description 2
- POAOYUHQDCAZBD-UHFFFAOYSA-N 2-butoxyethanol Chemical compound CCCCOCCO POAOYUHQDCAZBD-UHFFFAOYSA-N 0.000 claims description 2
- 150000001492 aromatic hydrocarbon derivatives Chemical class 0.000 claims description 2
- 229910052793 cadmium Inorganic materials 0.000 claims description 2
- 229910052804 chromium Inorganic materials 0.000 claims description 2
- FUGIIBWTNARRSF-UHFFFAOYSA-N decane-5,6-diol Chemical compound CCCCC(O)C(O)CCCC FUGIIBWTNARRSF-UHFFFAOYSA-N 0.000 claims description 2
- 229940019778 diethylene glycol diethyl ether Drugs 0.000 claims description 2
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 229910052749 magnesium Inorganic materials 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- YFNKIDBQEZZDLK-UHFFFAOYSA-N triglyme Chemical compound COCCOCCOCCOC YFNKIDBQEZZDLK-UHFFFAOYSA-N 0.000 claims description 2
- 150000003752 zinc compounds Chemical class 0.000 claims description 2
- 150000002118 epoxides Chemical group 0.000 claims 4
- 229920000570 polyether Polymers 0.000 abstract description 42
- 239000000243 solution Substances 0.000 abstract description 28
- 239000004721 Polyphenylene oxide Substances 0.000 abstract description 20
- 239000000047 product Substances 0.000 abstract description 19
- 239000004593 Epoxy Substances 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 7
- 238000005406 washing Methods 0.000 abstract description 4
- 238000000926 separation method Methods 0.000 abstract description 3
- 238000013329 compounding Methods 0.000 abstract 1
- 239000002244 precipitate Substances 0.000 abstract 1
- 150000002924 oxiranes Chemical group 0.000 description 16
- 239000000178 monomer Substances 0.000 description 14
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 description 12
- 238000006243 chemical reaction Methods 0.000 description 10
- 239000003960 organic solvent Substances 0.000 description 10
- JMANVNJQNLATNU-UHFFFAOYSA-N oxalonitrile Chemical compound N#CC#N JMANVNJQNLATNU-UHFFFAOYSA-N 0.000 description 10
- 229920001451 polypropylene glycol Polymers 0.000 description 9
- -1 zinc halide metalloid salt Chemical class 0.000 description 8
- 239000003795 chemical substances by application Substances 0.000 description 7
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 6
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 6
- 150000004820 halides Chemical class 0.000 description 6
- 239000000843 powder Substances 0.000 description 6
- 239000000376 reactant Substances 0.000 description 6
- LGRDAQPMSDIUQJ-UHFFFAOYSA-N tripotassium;cobalt(3+);hexacyanide Chemical compound [K+].[K+].[K+].[Co+3].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-] LGRDAQPMSDIUQJ-UHFFFAOYSA-N 0.000 description 6
- 239000011592 zinc chloride Substances 0.000 description 6
- 235000005074 zinc chloride Nutrition 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 5
- 229910017052 cobalt Inorganic materials 0.000 description 5
- 239000010941 cobalt Substances 0.000 description 5
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 5
- 238000006116 polymerization reaction Methods 0.000 description 5
- 229920005862 polyol Polymers 0.000 description 5
- 150000003077 polyols Chemical class 0.000 description 5
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 4
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical compound ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 description 4
- WTEOIRVLGSZEPR-UHFFFAOYSA-N boron trifluoride Chemical compound FB(F)F WTEOIRVLGSZEPR-UHFFFAOYSA-N 0.000 description 4
- 238000009826 distribution Methods 0.000 description 4
- 229910052739 hydrogen Inorganic materials 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 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
- 238000005119 centrifugation Methods 0.000 description 3
- 239000013522 chelant Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 230000003750 conditioning effect Effects 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 229920000909 polytetrahydrofuran Polymers 0.000 description 3
- 238000012805 post-processing Methods 0.000 description 3
- 238000001556 precipitation Methods 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 230000002194 synthesizing effect Effects 0.000 description 3
- SVTBMSDMJJWYQN-UHFFFAOYSA-N 2-methylpentane-2,4-diol Chemical compound CC(O)CC(C)(C)O SVTBMSDMJJWYQN-UHFFFAOYSA-N 0.000 description 2
- 229910015900 BF3 Inorganic materials 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 230000000536 complexating effect Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000005227 gel permeation chromatography Methods 0.000 description 2
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910021645 metal ion Inorganic materials 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
- 239000002685 polymerization catalyst Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 229920002554 vinyl polymer Polymers 0.000 description 2
- 238000010792 warming Methods 0.000 description 2
- RBACIKXCRWGCBB-UHFFFAOYSA-N 1,2-Epoxybutane Chemical compound CCC1CO1 RBACIKXCRWGCBB-UHFFFAOYSA-N 0.000 description 1
- JECYNCQXXKQDJN-UHFFFAOYSA-N 2-(2-methylhexan-2-yloxymethyl)oxirane Chemical group CCCCC(C)(C)OCC1CO1 JECYNCQXXKQDJN-UHFFFAOYSA-N 0.000 description 1
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- 238000004438 BET method Methods 0.000 description 1
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 1
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 1
- 240000004101 Iris pallida Species 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 description 1
- 229930006000 Sucrose Natural products 0.000 description 1
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 description 1
- TVXBFESIOXBWNM-UHFFFAOYSA-N Xylitol Natural products OCCC(O)C(O)C(O)CCO TVXBFESIOXBWNM-UHFFFAOYSA-N 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 150000005215 alkyl ethers Chemical class 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- NEHMKBQYUWJMIP-UHFFFAOYSA-N anhydrous methyl chloride Natural products ClC NEHMKBQYUWJMIP-UHFFFAOYSA-N 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- 238000005815 base catalysis Methods 0.000 description 1
- CDQSJQSWAWPGKG-UHFFFAOYSA-N butane-1,1-diol Chemical compound CCCC(O)O CDQSJQSWAWPGKG-UHFFFAOYSA-N 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 235000009508 confectionery Nutrition 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 150000001924 cycloalkanes Chemical class 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 230000032050 esterification Effects 0.000 description 1
- 238000005886 esterification reaction Methods 0.000 description 1
- 229940035423 ethyl ether Drugs 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 235000019253 formic acid Nutrition 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- 150000008282 halocarbons Chemical class 0.000 description 1
- TZMQHOJDDMFGQX-UHFFFAOYSA-N hexane-1,1,1-triol Chemical compound CCCCCC(O)(O)O TZMQHOJDDMFGQX-UHFFFAOYSA-N 0.000 description 1
- 229940051250 hexylene glycol Drugs 0.000 description 1
- CMMAWNUCMAKQGU-UHFFFAOYSA-N hydroxy(methyl)silicon Chemical compound C[Si]O CMMAWNUCMAKQGU-UHFFFAOYSA-N 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000003317 industrial substance Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- HEBKCHPVOIAQTA-UHFFFAOYSA-N meso ribitol Natural products OCC(O)C(O)C(O)CO HEBKCHPVOIAQTA-UHFFFAOYSA-N 0.000 description 1
- 229910052752 metalloid Inorganic materials 0.000 description 1
- 229940050176 methyl chloride Drugs 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 125000000962 organic group Chemical group 0.000 description 1
- 229920001558 organosilicon polymer Polymers 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 229920002432 poly(vinyl methyl ether) polymer Polymers 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920005906 polyester polyol Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 229920006324 polyoxymethylene Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000011496 polyurethane foam Substances 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 1
- ULWHHBHJGPPBCO-UHFFFAOYSA-N propane-1,1-diol Chemical class CCC(O)O ULWHHBHJGPPBCO-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 238000004537 pulping Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000011949 solid catalyst Substances 0.000 description 1
- 239000005720 sucrose Substances 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 125000003396 thiol group Chemical group [H]S* 0.000 description 1
- 238000006276 transfer reaction Methods 0.000 description 1
- 239000003799 water insoluble solvent Substances 0.000 description 1
- 239000000811 xylitol Substances 0.000 description 1
- HEBKCHPVOIAQTA-SCDXWVJYSA-N xylitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)CO HEBKCHPVOIAQTA-SCDXWVJYSA-N 0.000 description 1
- 235000010447 xylitol Nutrition 0.000 description 1
- 229960002675 xylitol Drugs 0.000 description 1
Landscapes
- Polyethers (AREA)
Abstract
The bimetal cyanide catalyst with high activity for ring opening polymerization of epoxy compound includes bimetal cyanide with two-valent metal and transition metal; macromolecular organosilicon chelating agent in 2-80 wt% and water reducing agent in 0-15 wt%. Its preparation includes compounding mixed solution of two-valent metal halide and macromolecular organosilicon chelating agent; adding water solution of transition metal chelated cyanide to the mixed solution; separation of the precipitate and washing; and drying. The catalyst is used in ring opening polymerization of epoxy compound to prepare polyether and has high activity and results in easy control of polyether preparing process and excellent product performance.
Description
Technical field
The present invention relates to a kind of high activity double-metal prussiate (DMC) Catalysts and its preparation method and methods for using them that epoxide ring-opening polymerization prepares polyethers that is used for.
Technical background
Polyethers is a kind of large industrial chemicals, is widely used.The synthetic general acid-base catalysis method that adopts of the industry of past polyethers is promptly used catalysis expoxy propane such as NaOH, potassium hydroxide, boron trifluoride, ethylene oxide polymerization.Though these catalyst are cheap and easy to get, catalyst amount is big, and polymerizate must carry out complicated post processing.Side reaction is many during polymerization simultaneously, and product contains the polymer or the cyclic oligomer of more unsaturated end group, makes the hydroxy functionality of resin significantly be lower than theoretical value.Therefore, generally can only produce molecular weight at the polyethers below 3000 with these methods.Expect the more product of HMW, then because of its degree of functionality too reduces, and harmful mono-functional component too increases and loses practical significance.There are not the problems referred to above in polyethers with bimetallic catalyst production, has obtained noticeable development since the nineties, and its superior part comprises: catalyst activity is high, and consumption is few, often may remove last handling process from; Polyethers purity height, outward appearance is good, and unsaturated endgroup content is few, and hydroxy functionality is guaranteed, and molecular weight distribution is also narrow; The performance of made polyurethane can obtain very big improvement.
Since US3,941,849 (1976) announced with bimetallic catalyst (DMC) carry out polyethers synthetic since, the structure of DMC, basic process and application have become technique known.The basic process of DMC is to react in the aqueous solution with zinc halide metalloid salt and metal network cyanide, and the precipitation of generation is handled with a large amount of soluble small molecular organic matters, carries out necessary separation and drying at last.The organic example of soluble small molecular has acetone, glyme and diethylene glycol dimethyl ether.Found afterwards that similar catalyst also can be used for synthetic (US4,500,704 (1985)) of polyethers polymer in addition.Above-mentioned small organic molecule has the effect that promotes the gained catalyst activity, is in order to substitute the moisture that sediment contains, so that finish dry run sooner, so be referred to herein as " water reducer " but originally drop into them.Patent application person of the present invention in 1989 and 1991 in ZL89100701.6 and ZL91109459.8, proposed with polymeric chelant instead of part or whole solvents that plays complexing and water-reduction, can make the activity of bimetallic catalyst obtain by a relatively large margin raising; The example of polymeric chelant is the derivative of polyethylene glycol, polyethers, polyvinyl alkyl ether, polyformaldehyde, polyester, polyamide, polyvinyl alcohol and etherificate, formalizing and esterification.After this, some patents are certainly introduced polymers compositions in the dmc catalyst gradually can obtain very high activity: US5, and 482,908 (1996) and US5, polyether polyol is introduced in 545,601 (1996) propositions in dmc catalyst; US5,426,081 (1995) propose to introduce polyurethane foam; ZL97,197,315 (1997) propose to introduce polyacrylamide, PVP, polyvinyl methyl ether, polyvinyl ethylether, polyester polyol and polyether polyol.Early stage DMC takes zinc halide solution is added the order preparation of network cyanide solution; ZL89100701.6 and ZL91109459.8 at first propose according to opposite order: i.e. the mixed solution of preparing metal halide and chelating agent then to the aqueous solution that wherein adds the metal complex anion, can obtain to have more high efficiency bimetallic catalyst.After this EP743,093 (1996) also proposes similarly to advocate to the charging sequence problem.Because dmc catalyst has been done a large amount of improvement, its performance was greatly improved in the nineties.But, most dmc catalyst complicated process of preparation, it is too much to consume raw material, also needs special production equipment.
Use the dmc catalyst synthesizing polyether, the most frequently used polymerization methods is US5,482,908 and the method for other patent promotion: in autoclave pressure, add catalyst, molecular weight regulator (also is " starting agent ", promptly the chain-transferring agent of regulating as molecular weight of product generally is the polyethers of lower molecular weight), and a little epoxy monomer; After the question response starting, most of epoxy monomer is slowly evenly added in the reactor.Another reactive mode is as US5,689,012 promotion like that, use tubular reactor, with the import of the mixture access tube starting point of catalyst, part molecular weight regulator and part epoxy monomer, the mixture of epoxy monomer and another part molecular weight regulator is added at the some positions in the middle of pipe.Reactive mode has direct influence for the performance of polyether products, need suitably select and optimize.
Summary of the invention
The object of the present invention is to provide a class to be used for high activity double-metal prussiate (DMC) catalyst of epoxide ring-opening polymerization, this catalyst has high activity, makes in the product metal remained ion concentration extremely low, can exempt postprocessing working procedures.
Another object of the present invention provides this Preparation of catalysts method, and this method is simple, and consumption of raw materials is few.
A further object of the present invention provides this catalyst and prepares application process in the polyethers at epoxide ring-opening polymerization, this method can make polymerisation more steady, be easy to control, favorable reproducibility, the polyether product excellent performance that obtains, the pfpe molecule amount that obtains is easily controlled, and narrow distribution, degree of unsaturation are extremely low.
High activity double-metal prussiate (DMC) catalyst that is used for epoxide ring-opening polymerization provided by the invention includes:
(a) contain the double metal cyanide of divalent metal and transition metal;
(b) the silicone based big molecule chelating agent of 2%～80wt% (based on the catalyst total amount);
(c) water reducer of 0%～15wt% (based on the catalyst total amount).
Catalyst provided by the invention is white soft powder art, and water insoluble and organic solvent does not have obvious hygroscopicity, and is under room temperature and lucifuge situation, stable in air.
Be applicable to that transition metal of the present invention is selected from one or more of Fe, Co, Cr, the most suitable transition metal is Co.Be applicable to that divalent metal of the present invention preferentially is selected from one or more of Zn, Cd, Mg, the most suitable divalent metal is Zn.
The effect of chelating agent is that it and metal ion fully act on and bring up specific catalytic environment.General big molecule chelating agent can be water-soluble or non-water-soluble oligomer or polymer, the silicone based big molecule chelating agent that the present invention uses is an organosilicon polymer, especially can be the silicone oil material, comprise modified silicon oil and non-modified silicon oil, as dimethicone, diethyl silicone oil, Methyl Hydrogen Polysiloxane Fluid, the ethyl containing hydrogen silicone oil, phenyl silicone oil, polymethylphenyl siloxane fluid, phenethyl silicone oil, the methyl chloride phenyl silicone oil, methyl ethoxy silicone oil, methyl trifluoro propyl silicone oil, methyl ethylene silicone oil, the methyl hydroxy silicon oil, hydroxyl hydrogen silicone oil, contain nitrile silicone, or their organic group modifier such as amino-modified silicone oil, epoxide modified silicone oil, sulfhydryl modified silicone oil, polyether modified silicon oil, carboxyl acid modified silicone oil etc.Preferential dimethicone, diethyl silicone oil, polymethylphenyl siloxane fluid, the phenethyl silicone oil etc. of adopting.Preferred 1～the 100000mPas of its viscosity (25 ℃), especially can adopt viscosity is the silicone oil material of 10～10000mPas (25 ℃).
Water reducer is the organic solvent that contains aerobic, nitrogen coordination atom, and the sediment that forms in catalyst preparation process is had big compatibility, and the boiling point of itself is lower, with water can be infinitely miscible.Add these solvents in the catalyst precipitation thing, can replace the portion of water that sediment absorbs out, so that sediment can more smooth and more promptly be dried, and formation be than the catalyst of open structure.Described water reducer comprises arene derivatives, ring-type or acyclic monobasic or polynary alcohol, ether, ester, ketone, epoxides, amine, nitrile, sulfoxide and acid amides, as methyl alcohol, ethanol, isopropyl alcohol, the tert-butyl alcohol, tert-pentyl alcohol, expoxy propane, oxolane, 1,4-dioxane, acetone, ethyl acetate, glycol dimethyl ether, ethylene glycol diethyl ether, butyl cellosolve, diethylene glycol diethyl ether, diethylene glycol dimethyl ether, dibutyl ethylene glycol ether, triethylene glycol dimethyl ether etc.Whether how much residual water reducer is thoroughly determined by washing and drying in the final catalyst; But the use of water reducer helps improving catalyst structure, thereby promotes the gained activity of such catalysts.
The preferred catalyst of the present invention includes:
(a) six cobalticyanic acid zinc compounds;
(b) viscosity of 5%～50wt% (based on the catalyst total amount) is the silicone oil of 10～10000mPas (25 ℃);
(c) water reducer of 0%～12wt% (based on the catalyst total amount).
Preparation of catalysts method provided by the invention comprises the steps: the mixed solution of (1) preparation bivalent metal halide and silicone based big molecule chelating agent, and solvent is the mixture of water and cosolvent; (2) under agitation in above-mentioned mixed solution, add the aqueous solution of transition metal network cyanide equably; (3) separating the rapid formed sediment of previous step and water, water reducer or its aqueous solution is washed; (4) drying.
The mol ratio that wherein adds material is:
Divalent metal: transition metal: chelating agent=1: (0.1～0.7): (0.001～5); Every mole of divalent metal uses 0.01～10 liter of cosolvent, uses 0.05～20 liter of water reducer.
The preferred mol ratio that adds material is:
Divalent metal: transition metal: chelating agent=1: (0.15～0.7): (0.005～1); Every mole of divalent metal uses 0.05～5 liter of cosolvent, uses 0.1～10 liter of water reducer.
The bivalent metal halide that adopts in the Preparation of catalysts method provided by the invention especially can be a zinc chloride.
The transition metal network cyanide that adopts especially can be a Cobalt potassium cyanide.
Cosolvent is in preparation during catalyst, big molecule chelating agent is dissolved or is dispersed in the water.At chelating agent is that the use of cosolvent under the non-water-soluble situation more is necessary.Be applicable to that cosolvent of the present invention both can be water miscible, it also can be water-insoluble organic solvent, but must sufficiently high solubility be arranged to chelating agent, they comprise aromatic hydrocarbons and derivative, alkane, cycloalkane, halocarbon, ring-type or acyclic monobasic or polynary alcohol, ether, ester, ketone, epoxides, amine, nitrile, sulfoxide, acid amides.The cosolvent of preferentially selecting for use be boiling point lower, to adding chelating agent big solubility is arranged, and it is preferably water miscible, they comprise methyl alcohol, ethanol, isopropyl alcohol, the tert-butyl alcohol, expoxy propane, oxolane, 1,4-dioxane, acetone, ethyl acetate, chloroform, cyclohexane and their mixture.Cosolvent can be identical solvent with above-mentioned water reducer, also can be different.If cosolvent is then not remaining in the final catalyst of non-complexing.
The temperature of Preparation of Catalyst of the present invention can be selected in 0～80 ℃ of scope, or at room temperature carries out simply.The mol ratio of transition metal and divalent metal is 0.1～0.7 in feeding intake, and mol ratio is 0.15～0.7 preferably.Amount of chelant is 5～100% of two kinds of slaine weight.The cosolvent consumption does not require many, as long as guarantee that chelating agent can evenly disperse.Washing step is in order to remove reaction such as monovalence metal halide by product as far as possible, and partly replaces moisture content in the precipitation with water reducer.Every in the present invention gram sediment only can reach good effect with water reducer 2～12mL.
Catalyst of the present invention can also add a spot of acid when solution is prepared, thoroughly dissolve to guarantee slaine, and make the catalyst that obtains that high activity be arranged and make polymerizate that good performance be arranged.The acid that is fit to has hydrochloric acid, sulfuric acid, nitric acid, phosphoric acid, formic acid, acetate, boron trifluoride or its etherate.
This catalyst is used for epoxide ring-opening polymerization and prepares PPG.
This catalyst is used for the method that epoxide ring-opening polymerization prepares PPG, especially can take in the presence of catalyst of the present invention, by the mixture of continuous adding epoxides and molecular weight regulator, make epoxide ring-opening polymerization prepare the method for PPG.
Wherein epoxides preferentially is selected from oxirane, expoxy propane, one or both in the epoxy butane.
Usually " starting agent " said is molecular weight regulator, it is in the epoxide ring-opening polymerization process, when needed length is arrived in the molecular activity chain growth, with catalytic active center generation chain transfer reaction, with the restriction molecule chain continue increase, molecular weight is controlled at the scope that needs.Start-up period in reaction originally is not need " starting agent ".The present invention is mixed in adding system in the epoxy monomer with molecular weight regulator, and such benefit is the polyether polyol that conditioning agent not only can adopt lower molecular weight, can also adopt the wider small organic molecule that contains reactive hydrogen atom in source.The molecular weight regulator that the present invention uses comprises isopropyl alcohol, water, ethylene glycol, propane diols, butanediol, hexylene glycol, trimethylolpropane, glycerine, hexanetriol, pentaerythrite, xylitol, sweet mellow wine, sorbierite, sucrose.Conditioning agent can certainly be a polyether polyol, and promptly epoxides is with acid, base catalyzed polymerization and through the product of necessary purifying, or the polymerizate in the presence of dmc catalyst; Molecular weight ranges is 200～4000, preferably 200～1000.As required, also can be used two or more conditioning agents.
The synthetic technology that adopts uniqueness of polyethers of the present invention, promptly in common tank reactor, add dmc catalyst and the starting of a little epoxy monomer,, can make polymerisation more steady then to the mixture that wherein adds epoxides and molecular weight regulator equably continuously, be easy to control, favorable reproducibility, the polyether product excellent performance that obtains, the pfpe molecule amount that obtains is easily controlled, narrow distribution, degree of unsaturation are extremely low.
Dmc catalyst of the present invention and synthesizing polyether technology thereof have following advantage:
(1) method for preparing catalyst is simple, and consumption of raw materials is few.In the following embodiments as can be seen: prepare catalyst with method of the present invention and can save a large amount of organic solvents, the used organic solvent amount of every gram catalyst only be equivalent to the dmc catalyst preparation method that announces at present 12～66% (common preparation method is 30～50mL/g, and the present invention is 6～25mL/g).
(2) catalyst can use in 200 ℃ of following wider temperature range.Monomer conversion is higher than 96%.Catalyst activity height, consumption can be low to moderate 15ppm (based on the weight of final polyether product), and the metal remained ion can be less than 5ppm in polyether products, can exempt postprocessing working procedures and do not influence product quality.
(3) adopt reactive mode of the present invention, not high relatively to the equipment requirement, polymerization is control steadily and easily, as a result good reproducibility.
(4) the polyether polyol excellent product performance that obtains, molecular weight can be controlled in very wide scope more conveniently, and molecular weight distribution is narrower, and degree of unsaturation is lower than 0.005mmol/g.
The specific embodiment
Embodiment:
General operation:
Preparation of catalysts:
(1) mixed dispersion liquid of preparation bivalent metal halide, acidic materials and chelating agent abbreviates the halide mixed liquor as.
Can be mixed with mixing true solution or mixed emulsion by water miscible cosolvent for non-water-soluble chelating agent; Also can dissolve chelating agent with non-water-soluble cosolvent, water dissolving bivalent metal halide and acidic materials mix under strong agitation and use.
(2) aqueous solution of preparation transition metal network cyanide abbreviates network cyanogen solution as, under agitation evenly injects the halide mixed liquor, separates formed sediment with centrifugal or filter method.
(3) water, water reducer or their mixture (general designation cleaning solution) carry out the one or many pulping and washing to above-mentioned sediment.
(4) sediment is dried to constant weight under 60～110 ℃ of temperature.
Synthesizing of polyethers(general step):
In the autoclave pressure of drying, add by monomer of dmc catalyst and necessity or the starting mixture that molecular weight regulator is formed, under agitation be warming up to reaction temperature, when the pressure in the question response device drops to half following (generally below 0.15MPa) of maximum pressure, add the reactant mixture of forming by epoxides and molecular weight regulator continuously, and control feed rate make system pressure remain on 0.05～0.3Mpa, till obtaining required pfpe molecule amount.Behind the constant pressure in reinforced end and the question response device, decompression removes volatile component, finishes to react, and discharging gets polyether product.
Method of testing:
The specific area of catalyst adopts the XA3100 specific area bore analyzer of the special company of U.S. Cole, measures with the BET method; C, H, O, N elementary analysis adopt the CHN-O elemental analyser of West Germany Heraens company to measure; Metallic element analysis adopts the U.S. IRIS of TJA company (HR) to compose the direct-reading plasma atomic emission spectrometer entirely and measures; Degree of unsaturation is pressed the GB/T12008.7-92 method and is measured; Molecular weight is used gel permeation chromatography on waters991 type GPC/LC chromatograph.
Embodiment 1
Preparation of Catalyst is undertaken by general operation.Halide mixed liquor wherein is to be the solution formation of polymethylphenyl siloxane fluid (molecule chelating agent greatly) in 18mL oxolane (cosolvent) of 2000mPas (25 ℃) by solution, a little hydrochloric acid (adjusting pH is 4) and the 1.3g viscosity of 4.3g zinc chloride in 8mL water.Network cyanogen solution is to be dissolved in 20mL water by 2g Cobalt potassium cyanide to form.Each time cleaning solution is respectively the 8mL water+8mL tert-butyl alcohol (water reducer), the 12mL tert-butyl alcohol and 6mL tert-butyl alcohol.Obtaining white powder 2.6g, is to be catalyst 1.Analytical element content (weight): cobalt=7.9g%, zinc=22.7%, polymethylphenyl siloxane fluid=20.57%.Record specific surface 200.4m
2/ g.The used organic solvent of every gram catalyst is 16.92mL.
Polyethers is synthetic to be undertaken by general step.Wherein starting mixture is: 0.0238g catalyst 1+1.0g PPO500F2 (the expoxy propane PTMEG of expression molecular weight 500, remaining polymerization catalyst is removed, below makes other code name meaning of the polyethers of molecular weight regulator and analogizes)+27mL PO.Reactant mixture is the solution of 21.5g PPO500F2 in the 430mL expoxy propane.Obtain PTMEG 396g, calculate the catalyst consumption and be 60ppm (based on product weight, below roughly the same), monomer conversion is 98.7%.Measuring its molecular weight is 6423; Degree of unsaturation is 0.0043mmol/g.
Embodiment 2
Preparation of Catalyst is undertaken by general operation.Halide mixed liquor wherein is to be made of the solution and the 1.7g viscosity solution of phenethyl silicone oil (chelating agent) in 20mL oxolane (cosolvent) that is 8000mPas (25 ℃) of 5.2g zinc chloride in 10mL water.Network cyanogen solution is to be dissolved in 20mL water by 2g Cobalt potassium cyanide to form.Each time cleaning solution is 6mL water+10mL ethyl acetate, the 6mL ethyl acetate+10mL tert-butyl alcohol, the 8mL tert-butyl alcohol.Obtaining white powder 2.2g, is to be catalyst 2.Analytical element content (weight): cobalt=9.12%, zinc=22.27%, phenethyl silicone oil=27.9%.Record specific surface 172.9m
2/ g.The used organic solvent of every gram catalyst is 24.54mL.
Polyethers is synthetic to be undertaken by general step.Wherein starting mixture is: 0.0259g catalyst 2+1g PPO400F3 (be the expoxy propane polyether triol of molecular weight 400, remaining polymerization catalyst is removed)+24mLPO.Reactant mixture is the solution of 21gPPO400F3 in the 420mL expoxy propane.Obtain polyether triol 379g, calculating the catalyst consumption is 68ppm, and monomer conversion is 97.1%.Measuring its molecular weight is 4590; Degree of unsaturation is 0.0038mmol/g.
Embodiment 3
Preparation of Catalyst is undertaken by general operation.Halide mixed liquor wherein is by the solution of 5.6g zinc chloride in 10mL water, and a little hydrochloric acid (adjusting pH is 4) and 2.3g viscosity are that the solution of dimethicone (chelating agent) in 22mL chloroform (cosolvent) of 500mPas (25 ℃) constitutes.Network cyanogen solution is to be dissolved in 20mL water by 2g Cobalt potassium cyanide to form.Each time cleaning solution is 8mL water+8mL tert-butyl alcohol (water reducer), the 16mL tert-butyl alcohol, the 10mL tert-butyl alcohol.Obtaining white powder 2.3g, is to be catalyst 3.Analytical element content (weight): cobalt=11.78%, zinc=29.7%, dimethicone=30.5%, the used organic solvent of every gram catalyst is 23.47mL.
Polyethers is synthetic to be undertaken by general step.Wherein starting mixture is: 0.0253g catalyst 3+1.25g PPO500F2+26mLPO.Reactant mixture is the solution of 25.63g PPO500F2 in the 410mL expoxy propane.Obtain PTMEG 377g.Calculating the catalyst consumption is 67ppm, and monomer conversion is 97.6%.Measuring its molecular weight is 5130; Degree of unsaturation is 0.0029mmol/g.
Embodiment 4
Preparation of Catalyst is undertaken by general operation.Halide mixed liquor wherein is by 15.8g zinc chloride, 25mL water, and 0.75g viscosity is that diethyl silicone oil (chelating agent) and the 12.5mL industrial alcohol (cosolvent) of 56mPas (25 ℃) constitutes.Network cyanogen solution is made up of 5.0g Cobalt potassium cyanide and 120mL water.Each time cleaning solution is a 20mL water, the 15mL tert-butyl alcohol, the 15mL tert-butyl alcohol (water reducer).Obtaining white powder 6.5g, is to be catalyst 4.Analytical element content (weight): cobalt=10.3%, zinc=28.70%, diethyl silicone oil=18.7%.The used organic solvent of every gram catalyst is 6.46mL.
Polyethers is synthetic to be undertaken by general step.Wherein starting mixture is: 0.023g catalyst 4+8.2g PPO400F3+17.8mL expoxy propane.Reactant mixture is the solution of 33.33g PPO400F3 in the 267mL expoxy propane.Obtain polyethers 269.5g, calculating the catalyst consumption is 85ppm, and monomer conversion is 97.2%.Measuring its molecular weight is 2920; Degree of unsaturation is 0.0052mmol/g.
The comparative example 5
This comparative example replaces silicone oil with polyethers and makes big molecule chelating agent and prepare dmc catalyst (catalyst 5 is according to the method preparation of U.S. Pat 5482908), and with this catalyst to synthesize ethoxylated polyhydric alcohol.
The solution that the 1.6g potassium cobalticyanide is dissolved in 28mL water under agitation mixes with the solution that the 5g zinc chloride is dissolved in 10mL water, adds the mixture of the 20mL tert-butyl alcohol and 20mL water immediately in this mixed liquor, and vigorous stirring is 10 minutes subsequently.Again 40mL water, the 1mL tert-butyl alcohol and PPG (the 0.4g molecular weight is 4000 polypropylene glycol, also prepares with dmc catalyst) are added in the prepared six cobalticyanic acid zinc aqueous slurries, product was stirred 3 minutes.Centrifugation goes out solid, adds 12mL water, the 28mL tert-butyl alcohol and 0.4g molecular weight again and be 4000 polypropylene glycol slurrying, and mixture was stirred 10 minutes.Centrifugation goes out solid, adds the 40mL tert-butyl alcohol and 0.2g molecular weight again and be 4000 polypropylene glycol slurrying, stirred 10 minutes, centrifugation, the solid catalyst that obtains 60 ℃ dry down, powder catalyst 1.8g, be to be catalyst 5.Analytical element content (weight): cobalt=11.5%, zinc=22.3%, PPO4000F2=21.5%.The used organic solvent of every gram catalyst is 49.44mL.
Polyethers is synthetic to be undertaken by general step.Wherein starting mixture is: 0.0339g catalyst 5+1.81gPPO400F3+30mLPO.Reactant mixture is the solution of 36g PPO400F3 in the 360mL expoxy propane.Obtain polyether triol 350g, calculating the catalyst consumption is 97ppm, and monomer conversion is 97.1%.Measuring its molecular weight is 3677; Degree of unsaturation is 0.0032mmol/g.
Embodiment 1～4 and Comparative Examples 5 more as can be known, catalyst of the present invention has the activity (the catalyst consumption is low) that significantly improves, the while, method for preparing catalyst of the present invention was simpler, and consumption of raw materials significantly reduces.
Embodiment 6
Use catalyst 1 (consumption is 15ppm) preparation PPG
The 0.0330g catalyst 1 of in the 500mL autoclave pressure, packing into, 2g PPO400F3, and 20mL expoxy propane.Start stirring, be warming up to 105 ℃, the still internal pressure rises to 0.35MPa earlier, drops to 0.05MPa soon automatically.Begin evenly to add continuously in still 43g PPO400F3+430mLPO this moment, discharging 345g (also surplus product 73g in the still, catalyst 0.0057g) continues to add 31.8g PPO400F3+18mLPO then while hot.After adding, it is constant that 150 ℃ of product insulations are reduced to up to pressure, and volatile matter is removed in evaporation, obtains polyether triol 363.8g again, and calculating the catalyst consumption is 15.6ppm, and monomer conversion is 98.4%.Measuring its molecular weight is 4153; Degree of unsaturation is 0.0046mmol/g.Carrying out before any catalyst removes, the measured quantity of metal ion is in the polyethers: Zn=4ppm, Co=2ppm.
The present embodiment explanation, with the good PPG of minute quantity catalyst energy processability of the present invention, the residual metal in the product is few, generally needn't carry out catalyst separation.
Claims (11)
1, a kind of catalyst of high activity double-metal prussiate that is used for epoxide ring-opening polymerization includes:
(a) contain the double metal cyanide of divalent metal and transition metal;
(b) the silicone based big molecule chelating agent of 2%～80wt% (based on the catalyst total amount);
(c) water reducer of 0%～15wt% (based on the catalyst total amount).
2,, it is characterized in that described transition metal is selected from one or more of Fe, Co, Cr according to the catalyst described in the claim 1; Described divalent metal is selected from one or more of Zn, Cd, Mg.
3,, it is characterized in that described silicone based big molecule chelating agent is the silicone oil material according to the catalyst described in claim 1 or 2.
4,, it is characterized in that described silicone oil material is selected from dimethicone, diethyl silicone oil, polymethylphenyl siloxane fluid, phenethyl silicone oil according to the catalyst described in the claim 3.
5, according to the catalyst described in the claim 3, the viscosity that it is characterized in that described silicone oil material is 1～100000mPas (25 ℃).
6,, it is characterized in that described water reducer is selected from the arene derivatives that contains aerobic, nitrogen coordination atom, ring-type or acyclic monobasic or polynary alcohol, ether, ester, ketone, epoxides, amine, nitrile, sulfoxide and acid amides according to the catalyst described in claim 1 or 2.
7, according to the catalyst described in the claim 6, it is characterized in that described water reducer is selected from methyl alcohol, ethanol, isopropyl alcohol, the tert-butyl alcohol, tert-pentyl alcohol, expoxy propane, oxolane, 1,4-dioxane, acetone, ethyl acetate, glycol dimethyl ether, ethylene glycol diethyl ether, butyl cellosolve, diethylene glycol diethyl ether, diethylene glycol dimethyl ether, dibutyl ethylene glycol ether, triethylene glycol dimethyl ether.
8,, it is characterized in that described catalyst contains according to the catalyst described in the claim 1:
(a) six cobalticyanic acid zinc compounds;
(b) viscosity of 5%～50wt% (based on the catalyst total amount) is the silicone oil of 10～10000mPas (25 ℃);
(c) water reducer of 0%～12wt% (based on the catalyst total amount).
9, a kind of method for preparing catalyst described in the claim 1 to 8 comprises the steps:
(1) mixed solution of preparation bivalent metal halide and silicone based big molecule chelating agent, solvent are mixing of water and cosolvent
Compound;
(2) under agitation in above-mentioned mixed solution, add the aqueous solution of transition metal network cyanide equably;
(3) separating the rapid formed sediment of previous step and water, water reducer or its aqueous solution is washed;
(4) drying.
The mol ratio that wherein adds material is: divalent metal: transition metal: chelating agent=1: (0.1～0.7): (0.001～
5); Every mole of divalent metal uses 0.01～10 liter of cosolvent, uses 0.05～20 liter of water reducer.
10,, it is characterized in that the mol ratio of described adding material is: divalent metal: mistake according to the method described in the claim 9
Cross metal: chelating agent=1: (0.15～0.7): (0.005～1); Every mole of divalent metal use cosolvent 0.05～
5 liters, use 0.1～10 liter of water reducer.
11, catalyst is used for the method that epoxide ring-opening polymerization prepares PPG described in a kind of application rights requirement 1 to 8,
It is characterized in that in the presence of catalyst the mixture by continuous adding epoxides and molecular weight regulator makes ring
The oxide ring-opening polymerisation prepares PPG.
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| CN101514243A (en) * | 2008-02-21 | 2009-08-26 | 赢创戈尔德施米特有限公司 | New polyether alcohols containing alkoxysilyl groups and method for production |
| CN101445599B (en) * | 2007-11-28 | 2013-06-26 | 赢创戈尔德施米特有限公司 | Method for producing polyether alcohols with DMC catalysts using compounds containing SIH combinations as additives |
| CN114687216A (en) * | 2022-01-11 | 2022-07-01 | 浙江科峰新材料有限公司 | Soft and smooth block silicone oil for cotton and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101445599B (en) * | 2007-11-28 | 2013-06-26 | 赢创戈尔德施米特有限公司 | Method for producing polyether alcohols with DMC catalysts using compounds containing SIH combinations as additives |
| CN101514243A (en) * | 2008-02-21 | 2009-08-26 | 赢创戈尔德施米特有限公司 | New polyether alcohols containing alkoxysilyl groups and method for production |
| CN114687216A (en) * | 2022-01-11 | 2022-07-01 | 浙江科峰新材料有限公司 | Soft and smooth block silicone oil for cotton and preparation method thereof |
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