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Modified resin catalyst and preparation method thereof

A technology for modifying resins and catalysts, which is applied in chemical instruments and methods, physical/chemical process catalysts, hydroxyl addition preparation, etc. It can solve problems such as poor affinity and impact on catalytic activity, and achieve increased production capacity, low drop-off rate, The effect of energy consumption reduction

Active Publication Date: 2012-05-30
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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  • Modified resin catalyst and preparation method thereof
  • Modified resin catalyst and preparation method thereof
  • Modified resin catalyst and preparation method thereof

Examples

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Effect test

Embodiment 1

[0021] Take 100g of the D006 type macroporous strong acid cation resin catalyst produced by Kairui Chemicals and add it to a 2000ml reactor, add 400ml of pure water, 16.4g of dihexadecylmethylamine and 20.3g of dioctadecyldimethylammonium chloride The mixture was reacted at 95° C. for 10 hours to obtain 135.6 g of the final product—catalyst A, whose physical and chemical indicators were listed in Table 1.

Embodiment 2

[0023] Take 100 g of the D008 type high-temperature-resistant macroporous strong acid cation resin catalyst produced by Kairui Chemical Industry that introduces electron-withdrawing group Cl on the benzene ring and add it to a 2000ml reactor. A mixture of g dodecylamine-1, 17.8g ditetradecyl secondary amine, 16.4g dihexadecylmethylamine and 20.3g dioctadecyldimethylammonium chloride, react at 25°C In 20 hours, 189.6g of the final product—catalyst B was obtained, and its measured physical and chemical indicators were listed in Table 1.

Embodiment 3

[0025] Take 100 g of a commercially available high-temperature-resistant macroporous strong acid cation resin catalyst with electron-withdrawing group Br introduced on the benzene ring and add it to a 2000 ml reaction kettle, add 400 ml of pure water, 12.5 g of dodecyl primary amine-1 and 15.3 g of double ten The mixture of octaalkyldimethylammonium chloride was reacted at 30° C. for 0.5 hour to obtain 132.5 g of the final product—catalyst C, whose physical and chemical indicators were listed in Table 1.

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Abstract

The invention relates to a modified resin catalyst and a preparation method thereof. The modified resin catalyst is particularly suitable for being used as the catalyst for preparing tertiary butyl alcohol (TBA) from isobutene through hydration, preparing normal butyl alcohol (SBA) from n-butene through hydration and preparing isopropyl alcohol (IPA) from propylene through hydration. The invention introduces a certain amount of alkylamine into resin in a styrene sulfonic acid cation resin catalyst by an ion exchange method for preparing the multifunctional radical catalyst, the compatibility of the catalyst on olefin is obviously improved, and the concentration of the olefin reactant around the active center of the catalyst is improved, so the olefin hydration conversion rate is obviouslyimproved.

Description

technical field [0001] The present invention relates to a kind of modified resin catalyst and its preparation method. The reaction that the material participates in 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. CN1555924A A high exchang...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J31/10C07C31/12C07C29/05
Inventor 刘文飞王金明张勇
Owner KAIRUI ENVIRONMENTAL PROTECTION TECH
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