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Method for preparing acrylic acid catalyst by using propane

A catalyst, acrylic acid technology, applied in the preparation of organic compounds, the preparation of carboxylates, chemical instruments and methods, etc., can solve the problems of easy breakage, easy blockage, affecting the long-term use effect of catalysts, etc. active effect

Inactive Publication Date: 2016-09-21
张玲
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Acrylic acid catalysts in the prior art mainly use oxides such as silicon dioxide and titanium dioxide as catalyst carriers, or they are mixed in liquid phase and then roasted into particles, which have the disadvantages of being easy to break and block, which affects the long-term use effect of the catalyst

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] 1) In the reactor, add 100 parts by weight of styrene, 60 parts of divinylbenzene, 3 parts of cyclopentadienyl titanium trichloride, 4 parts of bis(tricarbonyl cyclopentadiene molybdenum), 2 parts Part cyclopentadiene tricarbonyl rhenium, 0.3 part trimethylcyclopentadiene platinum, 0.3 part lithium pentamethylcyclopentadiene, 0.2 part bis(pentamethylcyclopentadiene) cobalt, 2000 parts water , 2 parts of polyvinyl alcohol, 1 part of benzoyl peroxide, reacted at 87 ° C for 8 hours, filtered, and dried to obtain an intermediate product;

[0015] 2) In parts by weight, add 4 parts of 1-5 dimethyl diselenide and 20 parts of toluene to 100 parts of the intermediate product, react at 10°C for 2 hours, filter, and dry to obtain the catalyst product. Numbered M-1.

Embodiment 2

[0017] 1) In the reactor, add 100 parts by weight of styrene, 50 parts of divinylbenzene, 1 part of cyclopentadienyl titanium trichloride, 1 part of bis(tricarbonyl cyclopentadiene molybdenum), 1 Part cyclopentadiene tricarbonyl rhenium, 0.1 part trimethylcyclopentadiene platinum, 0.1 part lithium pentamethylcyclopentadiene, 0.1 part bis(pentamethylcyclopentadiene) cobalt, 1000 parts water , 1 part of polyvinyl alcohol, 0.5 part of benzoyl peroxide, reacted at 80 ° C for 12 hours, filtered, and dried to obtain an intermediate product;

[0018] 2) In parts by weight, add 1 part of 1-5 dimethyl diselenide and 10 parts of toluene to 100 parts of the intermediate product, react at 0°C for 5 hours, filter, and dry to obtain the catalyst product. Numbered M-2.

Embodiment 3

[0020] 1) In the reactor, add 100 parts by weight of styrene, 80 parts of divinylbenzene, 10 parts of cyclopentadienyl titanium trichloride, 10 parts of bis(tricarbonyl cyclopentadiene molybdenum), 5 parts Part cyclopentadiene tricarbonyl rhenium, 0.5 part trimethylcyclopentadiene platinum, 0.5 part lithium pentamethylcyclopentadiene, 0.5 part bis(pentamethylcyclopentadiene) cobalt, 3000 parts water , 4 parts of polyvinyl alcohol, 2 parts of benzoyl peroxide, reacted at 95 ° C for 5 hours, filtered, and dried to obtain an intermediate product;

[0021] 2) In parts by weight, add 10 parts of 1-5 dimethyl diselenide and 30 parts of toluene to 100 parts of the intermediate product, react at 30° C. for 1 hour, filter, and dry to obtain the catalyst product. Numbered M-3.

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PUM

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Abstract

The invention relates to a method for preparing an acrylic acid catalyst by using propane. The acrylic acid catalyst is prepared by introducing metal and nonmetal elements such as molybdenum, rhenium, platinum, lithium, cobalt and selenium in macroporous polystyrene polymerization.

Description

technical field [0001] The invention relates to a preparation method of a catalyst, in particular to a preparation method of a catalyst for producing acrylic acid from propane. Background technique [0002] Acrylic acid has the advantages of unsaturated double bonds and polar molecular structure in the molecule, so it can constitute a polymer with various properties. The product is widely used in coatings, chemical fibers, adhesives and other fields. Acrylic acid is an important raw material for the production of acrylate ester and acrylic resin. Various catalysts need to be used in the production process to increase the rate of reaction and reduce the time required for reaction to achieve better production results. It is used in organic synthesis and polymer preparation, and can be used as a raw material for synthetic rubber. It is a cross-linking monomer for the manufacture of acrylate solvent-based and emulsion-based adhesives to improve the bonding strength and stabili...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J31/22B01J31/06C07C51/215C07C57/04
CPCB01J31/2295B01J31/06B01J2231/70C07C51/215C07C57/04
Inventor 王琪宇
Owner 张玲
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