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Macroporous cationic exchanging resin, preparing method and use in synthetic bisphenol A catalyst

A macroporous cation, exchange resin technology, used in organic compound/hydride/coordination complex catalysts, physical/chemical process catalysts, chemical instruments and methods, etc. Poor and other problems

Inactive Publication Date: 2005-02-23
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the effect of the structure of the base resin on the catalyst activity and selectivity is not well studied.
At present, the commercial macroporous resin has a high degree of crosslinking. The catalyst made of it as the base resin has high catalytic activity and good selectivity, but the pores of the catalyst are easily blocked, which makes the catalyst deactivate quickly and affects the use of the catalyst. Lifespan: The catalyst made of gel-type base resin with low crosslinking degree has high catalytic activity and long service life, but the selectivity is relatively low, and the catalyst has poor mechanical strength and is easy to break

Method used

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  • Macroporous cationic exchanging resin, preparing method and use in synthetic bisphenol A catalyst
  • Macroporous cationic exchanging resin, preparing method and use in synthetic bisphenol A catalyst
  • Macroporous cationic exchanging resin, preparing method and use in synthetic bisphenol A catalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] In a 500 ml four-necked flask equipped with a stirrer, a thermometer, and a condenser, add 1.2 grams of gelatin, 0.2 grams of a dispersing agent, 200 milliliters of water, and 28 grams of sodium chloride. After stirring to dissolve the dispersing agent, add 62.2 grams of Gram styrene, 2.44 gram divinylbenzene (content 52.1%), 60 gram liquid paraffin porogens and 0.65 gram benzoyl peroxide initiator, be warming up to 70 ℃ under stirring, keep warm for 1 hour, then be warming up to 80 ℃ Keep warm for 6 hours, steam the porogen, cool down and discharge, wash with water, dry, and sieve out qualified copolymer white balls.

[0034] In a 1000 ml four-necked flask equipped with a stirrer, a thermometer, and a condenser tube, add 60 grams of the copolymer white balls prepared by the above method, 200 ml of dichloroethane, stir to make the resin swell, and then add 1000 ml of concentrated sulfuric acid , heat up and steam dichloroethane to 100°C, keep warm for 12 hours, cool, fi...

Embodiment 2

[0037] As in Example 1, the consumption of divinylbenzene was changed to 4.88 grams, the liquid paraffin was changed to tert-amyl alcohol, and other conditions were unchanged. The properties of the obtained sulfonated resin (b) and catalyst (B) were shown in Tables 1 and 2.

Embodiment 3

[0039] As in Example 1, 2.44 grams of divinylbenzene was changed to 1.9 grams of divinylphenylmethane, and other conditions were unchanged. The properties of the obtained sulfonated resin (c) and catalyst (C) were shown in Tables 1 and 2.

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Abstract

A macroreticular cationic exchange resin is prepared from styrene or substituted styrene, divinylbenzene and atoleine through copolymerizing and sulfonating. It can be used to synthesize the catalyst for synthesizing diphenol A by ionic exchange. Said catalyst has high activity and selectivity and long service life.

Description

Technical field [0001] The invention relates to a catalyst for synthesizing bisphenol A with an ion exchange resin method, in particular to a macroporous cation exchange resin, its preparation method and its use in synthesizing bisphenol A catalyst. Background technique [0002] The synthesis of bisphenol A by ion exchange resin has simple process, less corrosion of equipment, and less three wastes. An advanced production process of bisphenol A, the raw material of high insulation grade epoxy resin. [0003] Currently used ion exchange resin catalysts, the base resin is a gel or macroporous sulfonic acid type cation exchange resin with an exchange capacity of 2.0-5.5 mmol / g dry resin. Such as sulfonated styrene-divinylbenzene copolymer, sulfonated phenolic resin, etc., applicable brand names such as: Amberlite-118, -200, -IR, -XE307; Amberlyst-15; Dowex-50, -MSC -1; Purolite CT151, CT124, etc. [0004] The above-mentioned basic resin is modified into a catalyst for the sy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J31/08C07C37/20
Inventor 何明阳洪定一陈群秦金来
Owner CHINA PETROLEUM & CHEM CORP
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