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Multi-metal cyanide complex catalyst

A multi-metal and complex technology, which is applied in the field of multi-metal cyanide complex catalysts, can solve the problems of long catalyst induction period and difficulty in controlling the temperature of the polymerization system.

Active Publication Date: 2008-11-12
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is that the induction period of the double metal cyanide complex catalyst in the prior art is relatively long, and the problem that the temperature of the polymerization system is not easy to control at the beginning of the reaction provides a new multi metal cyanide complex catalyst

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A. Preparation of multimetal cyanide complex catalyst

[0024] 7.20 g K 3 [CoCN 6 ] and 0.84 g K 2 [CoFeCN 6 ] Add 140 milliliters of deionized water to make it dissolve, slowly add 38.5% ZnCl at a speed of (2000~8000) rev / min 2 65 grams of aqueous solution. Subsequently, a mixed solution of 100 milliliters of tert-butanol and 100 milliliters of deionized water was added, and after stirring for 10 minutes, 14.7 grams of dimethyl phthalate and 200 milliliters of deionized water were added, stirred for 10 minutes, and filtered with a sand core funnel. Add 150 ml of tert-butanol and 60 ml of deionized water to the obtained solid, stir evenly, add 10.6 g of dimethyl phthalate, stir for 10 minutes, and then separate by filtration. Add 200 ml of tert-butanol to the obtained solid, stir evenly, add 6.7 g of dimethyl phthalate, stir for 10 minutes, and then separate by filtration. The solid was vacuum-dried at 60° C. to a constant weight to obtain 13.15 g of solid powder ...

Embodiment 2

[0041] A. Preparation of multimetal cyanide complex catalyst

[0042] 6.40 g K 3 [CoCN 6 ] and 1.68 g K 2 [CoFeCN 6 ] Add 140 milliliters of deionized water to make it dissolve, slowly add 38.5% ZnCl at a speed of (2000~8000) rev / min 2 65 grams of aqueous solution. Subsequently, a mixed solution of 100 milliliters of tert-butanol and 100 milliliters of deionized water was added, and after stirring for 10 minutes, 14.7 grams of dimethyl phthalate and 200 milliliters of deionized water were added, stirred for 10 minutes, and filtered with a sand core funnel. Add 150 ml of tert-butanol and 60 ml of deionized water to the obtained solid, stir evenly, add 10.6 g of dimethyl phthalate, stir for 10 minutes, and then separate by filtration. Add 200 ml of tert-butanol to the obtained solid, stir evenly, add 6.7 g of dimethyl phthalate, stir for 10 minutes, and then separate by filtration. The solid was vacuum-dried at 60° C. to constant weight to obtain 13.28 g of solid powder Ca...

Embodiment 3

[0059] A. Preparation of multimetal cyanide complex catalyst

[0060] 5.60 g K 3 [CoCN 6 ] and 2.52 g K 2 [CoFeCN 6 ] Add 140 milliliters of deionized water to make it dissolve, slowly add 38.5% ZnCl at a speed of (2000~8000) rev / min 2 65 grams of aqueous solution. Subsequently, a mixed solution of 100 milliliters of tert-butanol and 100 milliliters of deionized water was added, and after stirring for 10 minutes, 14.7 grams of dimethyl phthalate and 200 milliliters of deionized water were added, stirred for 10 minutes, and filtered with a sand core funnel. Add 150 ml of tert-butanol and 60 ml of deionized water to the obtained solid, stir evenly, add 10.6 g of dimethyl phthalate, stir for 10 minutes, and then separate by filtration. Add 200 ml of tert-butanol to the obtained solid, stir evenly, add 6.7 g of dimethyl phthalate, stir for 10 minutes, and then separate by filtration. The solid was vacuum-dried at 60° C. to a constant weight to obtain 13.40 g of solid powder ...

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Abstract

The invention relates to a polymetallic cyanide complex catalyst for ring opening polymerization of oxyalkylene, mainly aiming at resolving the problems existing in the prior technique that the activity of a catalyst is not enough and the catalyst needs relatively long induction period to acquire higher activity. In the invention, the technical proposal which better resolves the problems is as follows: the catalyst comprises one or a plurality of metallic cyanide complexes, a C4 to C10 organic alcohol with an tertiary alcohol structure and an organic ligand selected from aliphatic ester, aromatic monoester or aromatic diester and a mixture of the aromatic monoester and the aromatic diester. The catalyst has the advantages of no induction period and high activity, and is applied to the industrial preparation of unsaturated polyether polyols by the ring opening polymerization of the oxyalkylene.

Description

technical field [0001] The invention relates to a multimetal cyanide complex catalyst, in particular to a multimetal cyanide complex catalyst with high activity and no induction period. Background technique [0002] Polyether polyol is an important derivative of olefin oxide and one of the main raw materials for the synthesis of polyurethane (soft foam, hard foam, elastomer). With the wide application of polyurethane in electronics, electrical appliances, construction, automobiles, packaging, furniture, shoes, sealants, heat preservation, refrigeration and other fields, the amount of polyether polyols is increasing year by year. Catalysts for synthesizing polyether polyols are divided into cations (such as BF 3 ), anions (such as KOH) and coordination (such as Zn 3 [CoCN 6 ] 2 ) and other three types. Cationic catalyst (BF 3 ) catalyzes the ring-opening polymerization of oxidized olefins to produce many low-molecular-weight oligomers. In addition to the normal head-tai...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G65/04C08G65/12
Inventor 涂建军张惠明金晖王荣伟
Owner CHINA PETROLEUM & CHEM CORP
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