Catalyst for synthesizing polyether glycol from sucrose and oxidized olefin and preparation method thereof

A technology of polyether polyol and oxidized olefin, which is applied in the field of mixed metal complex catalysts, can solve the problems of long activation time, single organic ligand, catalytic efficiency not reaching ideal catalytic activity, etc., and achieve high catalytic efficiency, no Effect of pyrophoric hygroscopicity and apparent hygroscopicity

Active Publication Date: 2007-12-12
GUANGXI RES INST OF CHEM IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the Zn-Co catalytic system currently used in industrial production requires a long activation time, and at the same time, a single organic ligand is used, and the catalytic efficiency cannot reach the ideal catalytic activity (more than 40 kilograms of polymer / gram of catalyst, and The metal ion content is less than 10×10 -6 , preferably below 5×10 -6 ) [122. J. Hofmann, P. Ooms. P. Gupta, WO Patent 0047650, 2000]

Method used

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  • Catalyst for synthesizing polyether glycol from sucrose and oxidized olefin and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Weigh 4.08 grams of analytically pure ZnCl 2 Make a 1mol / L solution, then take K 3 Co(CN) 5Cl6.83 g is made into a 1mol / L solution with distilled water; at constant temperature, first add organic matter isopropanol and dioxane to the reactor, and then add the above-mentioned solution to the reactor under rapid stirring to mix and react , where the amount of material added is: Zn 2+ : [Co(CN) 5 Cl] 3- =1.2:1 (molar ratio); Virahol: dioxane=1:1 (volume ratio); every mole of [Co(CN) 5 Cl] 3- Add 13.0 liters of organic matter, and age at room temperature for 1 to 2 hours after the reaction is complete. Then the solution is suction filtered to obtain a filter cake, which is washed 2 to 3 times with a mixed solution of isopropanol and dioxane organic matter, and then washed 2 to 3 times with deionized water, and then heated in an oven at 50 to 60°C Vacuum-dried to constant weight, the obtained powder was pressed into tablets, then ground, and finally sieved into 100 me...

Embodiment 2

[0026] Weigh 4.08 grams of analytically pure ZnCl 2 Make a 1mol / L solution, then take K 3 Co(CN) 5 Cl6.83 g is made into a 1mol / L solution with distilled water; at constant temperature, first add organic matter isopropanol and dioxane to the reactor, and then add the above-mentioned solution to the reactor under rapid stirring to mix and react , where the amount of material added is: Zn 2+ : [Co(CN) 5 Cl] 3- =1.2:1 (molar ratio); Virahol: dioxane=3:1 (volume ratio); every mole of [Co(CN) 5 Cl] 3- Add 13.0 liters of organic matter, and age at room temperature for 1 to 2 hours after the reaction is complete. Then the solution is suction filtered to obtain a filter cake, which is washed 2 to 3 times with a mixed solution of isopropanol and dioxane organic matter, and then washed 2 to 3 times with deionized water, and then heated in an oven at 50 to 60°C Vacuum-dried to constant weight, the obtained powder was pressed into tablets, then ground, and finally sieved into 100 m...

Embodiment 3

[0029] Weigh 4.08 grams of analytically pure ZnCl 2 Make a 1mol / L solution, then take K 3 Co(CN) 5 Cl6.83 g is made into a 1mol / L solution with distilled water; at constant temperature, first add organic matter isopropanol and dioxane to the reactor, and then add the above-mentioned solution to the reactor under rapid stirring to mix and react , where the amount of material added is: Zn 2+ : [Co(CN) 5 Cl] 3- =1.2:1 (molar ratio); Virahol: dioxane=1:3 (volume ratio); every mole of [Co(CN) 5 Cl] 3- Add 13.0 liters of organic matter, and age at room temperature for 1 to 2 hours after the reaction is complete. Then the solution is suction filtered to obtain a filter cake, which is washed 2 to 3 times with a mixed solution of isopropanol and dioxane organic matter, and then washed 2 to 3 times with deionized water, and then heated in an oven at 50 to 60°C Vacuum-dried to constant weight, the obtained powder was pressed into tablets, then ground, and finally sieved into 100 m...

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Abstract

The invention discloses a kind of bimetal complex cyanide solid catalyst, belonging to chemical industrial catalyst preparation field. The chemical formula of it is Zn3[Co(CN)5(A)]2.wZnA2.xH2O.yL.zL1: A is Cl-, Br-, I-, CNS-, NCO-; L is organic alcohol, such as dimethyl carbinol, tert-butanol, amyl alcohol; L1 is organic ether, such as dioxide hexacyclic ring, dioxide pentacyclic ring, butyl ether, ethyl ether, propyl ether, diethylene glycol; factor are: w (0.01- 0.1), x (0.1- 1), y (1-4), z (1- 4). The product can catalyze polymerization of sucrose with olefin to produce polyether polyol, and the process is characterized by low reaction temperature and pressure, less catalytic consumption high molecular weight, narroe distribution and low degree of unsaturation for produced polyether.

Description

technical field [0001] The invention relates to a mixed metal complex catalyst, which belongs to the preparation technology of chemical catalysts. Background technique [0002] Polyurethane synthetic material is a novel polymer compound with unique properties and multiple uses. It came out in the 1930s and has a history of nearly 70 years. In 2005, the total output of polyurethane in the world has exceeded 10 million tons [Zhao Yanbiao. Five factors driving the development of polyurethane. China Petroleum and Chemical Industry. ]. One of the two raw materials for synthesizing polyurethane materials is polyol, and polyether polyol occupies the main position in polyol. Polyurethane resin products synthesized based on polyether polyols include foam plastics, rubber, coatings, adhesives, fibers, synthetic leather, waterproof materials, pavement materials, etc., and are widely used in electromechanical, shipbuilding, aviation, vehicles, civil engineering, etc. Various fields o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G65/10C08G65/26
Inventor 杨波黄科林张雪旺
Owner GUANGXI RES INST OF CHEM IND CO LTD
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