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Multi-functional group resin catalyst and preparation method thereof

A catalyst and multi-functional technology, applied in the field of multi-functional group resin catalyst and its preparation, can solve the problems of influence of catalytic activity, poor affinity, etc., and achieve the effects of low shedding rate, expansion of production capacity, and cost reduction

Active Publication Date: 2012-07-18
KAIRUI ENVIRONMENTAL PROTECTION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Whether it is the catalyst involved in the above-mentioned published patents or the resin catalyst that has been commercialized, its functional group is a single sulfonic acid group -SO 3 H, since the sulfonic acid group is hydrophilic and oleophobic, the above-mentioned sulfonic acid-type single-functional group catalysts are all used because of their poor affinity to olefins in reactions involving non-polar media such as olefin hydration. Its catalytic activity is significantly affected by

Method used

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  • Multi-functional group resin catalyst and preparation method thereof
  • Multi-functional group resin catalyst and preparation method thereof
  • Multi-functional group resin catalyst and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] (1) Chlorosulfonation of polystyrene microspheres: Take 100 g of styrene / divinylbenzene copolymer microspheres (particle size 0.40-0.60 mm) with a cross-linking degree of 16% and add them to a 2000 ml reactor, and add 500 ml of chlorosulfonate respectively acid and 40ml dichloroethane, stirred and swelled for 2 hours, heated to 50°C and kept for 20 hours to obtain 146.5g sulfonyl chloride SO 2 Sulfonylated polystyrene microspheres with a Cl content of 45.6% (product 1).

[0024] (2) N-acylation reaction of product 1: 146.5g of product 1 was added to a 2000ml reaction kettle, 450ml of dichloroethane and 7.6g of dodecylamine were added respectively, the temperature was raised to 65°C, and the temperature was kept for 17 hours to obtain 153.3 g of N-acylated product 2.

[0025] (3) Hydrolysis reaction of product 2: Add 153.3g of product 2 into a 2000ml reaction kettle, add 400ml of pure water, stir and heat up to 95°C, and keep it warm for 10 hours to obtain 375.6g of the...

Embodiment 2

[0027] The same process as in Example 1, except that the styrene / divinylbenzene copolymer microspheres are styrene / dipropylenebenzene copolymers with a crosslinking degree of 8%, and 7.6g dodecane will be added in the N-acylation reaction Base amine was changed to add N, N-dihexadecylamine 30g to obtain 389.4g final product---catalyst B, whose physical and chemical indexes recorded are listed in Table 1.

Embodiment 3

[0029] The same process as in Example 1, except that the styrene / divinylbenzene copolymer microspheres are naphthalene ethylene / divinylbenzene copolymers with a degree of crosslinking of 20%, and 8.9 g of nonylamine and The mixture of 23g tetradecylamine, obtains 411.6g final product---catalyst C, and its recorded physicochemical index is listed in Table 1.

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Abstract

The invention provides a multi-functional group resin catalyst particularly suitable for preparing tertiary butyl alcohol (TBA) from isobutene through hydration, preparing n-butyl alcohol (SBA) from n-butene through hydration and preparing isopropyl alcohol (IPA) from propylene through hydration, and a preparation method thereof. By introducing a certain amount of alkylamine lipophilic groups into sulfonic poly-aromatic resin or halogenated aromatic catalysts in the preparation of the multi-functional group catalyst, the invention obviously improves the affinity of the catalyst with olefin and increases the concentration of olefin reactant at the periphery of the active center of the catalyst, thereby significantly increasing the conversion rate in the hydration of olefin.

Description

technical field [0001] The present invention relates to a kind of highly active multifunctional group resin catalyst and its preparation method. The reaction involving two or more materials is especially suitable as a catalyst for the hydration of isobutene to produce tert-butanol (TBA), the hydration of n-butene to produce n-butanol (SBA), and the hydration of propylene to produce isopropanol (IPA). technical background [0002] Styrene-based strong acid resin catalysts have been widely used in industrial plants for isobutylene hydration. There are many commercial brands of catalysts for this purpose, such as D006, A15, A35, D005, D002, QRE-1, etc. Also disclosed many patents for this reason, disclose the preparation method of macroporous strong acid type cation exchange resin catalyst as patent No. CN1151334A, patent No. CN1389297A discloses the preparation method of high exchange capacity macroporous cation exchange resin catalyst, the inventor also discloses Patent No. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J31/10B01J37/00C07C29/04C07C31/12C07C31/10
Inventor 刘文飞王金明张勇
Owner KAIRUI ENVIRONMENTAL PROTECTION TECH
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