Etherification catalyst for preparing methyl tert-butyl ether from methanol-tert-butyl alcohol and preparation method of etherification catalyst

A technology of methyl tert-butyl ether and tert-butanol, which is applied in the field of ion resin catalysts and its preparation, can solve the problems of inhibiting catalyst activity, insufficient sulfonation depth, poor catalytic activity, etc., achieve excellent reaction catalytic activity, strengthen sulfonation Improve the depth and improve the effect of efficiency

Pending Publication Date: 2020-11-20
丹东明珠特种树脂有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The catalyst resin is obtained by polymerization on the white ball, so its sulfonation depth is not enough, resulting in weak acidity and poor catalytic activity; in addition, the water cannot be removed from the catalyst in time during the synthesis process, which inhibits the activity of the catalyst

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Catalyst A

[0022] (1) Aggregation

[0023] Add 60 parts of styrene, 20 parts of methyl methacrylate, 60 parts of divinylbenzene, porogen 24 and initiator 0.4 into the mixing tank according to the amount, and stir for 0.5 hours to obtain a uniform oil phase; add 300 parts of water and poly 1.0 parts of vinyl alcohol, stir and heat up to 40°C to dissolve completely, add the oil phase, adjust the stirring speed to 90 rpm according to the dispersion of the monomer, slowly raise the temperature to 80°C, polymerize for 8 hours, cool after reaction, discharge, alternately use Washing with hot and cold water to separate aggregated white balls;

[0024] Polymerized white balls are added to the extraction kettle, and excess solvent is added to the distillation kettle. The solvent can be methyl ethyl ketone or benzene, etc., and the distillation is condensed to the extraction kettle. When the mixed solution in the extraction kettle reaches the specified height, it is returned t...

Embodiment 2

[0031] Catalyst B:

[0032] (1) Aggregation

[0033] Add 80 parts of styrene, 40 parts of methyl methacrylate, 100 parts of divinylbenzene, porogen 44 and initiator 1.0 into the mixing tank according to the amount, and stir for 2.0 hours to obtain a uniform oil phase; add 400 parts of water and poly 2.0 parts of vinyl alcohol, stir and heat up to 50°C to completely dissolve, add the oil phase, adjust the stirring speed to 100 rpm according to the dispersion of the monomer, slowly raise the temperature to 80°C, polymerize for 18 hours, cool after the reaction, discharge, alternately use Washing with hot and cold water to separate aggregated white balls;

[0034] Put the polymerized white balls into the extraction kettle, add excess solvent to the distillation kettle, distill and condense to the extraction kettle, and return the mixed solution in the extraction kettle to the specified height, and repeat this 20 times to extract the porogen in the polymerized white balls. The p...

Embodiment 3

[0041] Catalyst C:

[0042] (1) Aggregation

[0043] Add 70 parts of styrene, 30 parts of methyl methacrylate, 80 parts of divinylbenzene, 39.6 parts of porogen and 0.6 parts of initiator into the mixing tank according to the amount, and stir for 1.0 hour to obtain a uniform oil phase; add 400 parts of water and 2.0 parts of polyvinyl alcohol, stir and heat up to 45°C to completely dissolve, add the oil phase, adjust the stirring speed to 95 rpm according to the dispersion of the monomer, slowly raise the temperature to 80°C, polymerize for 10 hours, cool after the reaction, discharge, alternately Wash with hot and cold water to separate aggregated white balls;

[0044]Add the polymerized white balls to the extraction kettle, add excess solvent to the distillation kettle, distill and condense to the extraction kettle, and return the mixed solution in the extraction kettle to the specified height, and repeat this 10 times to extract the porogen in the polymerized white balls. ...

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Abstract

The invention provides an etherification catalyst for preparing methyl tert-butyl ether from methanol-tert-butyl alcohol and a preparation method of the etherification catalyst. The preparation methodcomprises the following steps: carrying out suspension copolymerization in coexistence of an oil phase and a dispersion phase, carrying out extraction, drying and screening to obtain a copolymerization white ball, sulfonating, and washing to obtain the product, wherein the oil phase comprises styrene, methyl methacrylate, a divinyl benzene monomer, a pore-foaming agent and an initiator, and the dispersion phase comprises water and polyvinyl alcohol. Actual verification shows that the conversion rate of tert-butyl alcohol is greater than 60%, and the catalyst shows excellent reaction catalyticactivity.

Description

technical field [0001] This patent application relates to the technical field of catalysts for petrochemical synthesis, in particular to an ion resin catalyst for preparing methyl tert-butyl ether by synthesizing methanol and tert-butanol and a preparation method thereof. Background technique [0002] The preparation of methyl tert-butyl ether is currently mainly obtained by synthesizing the isobutene fraction in petroleum carbon four and methanol under the catalysis of an acidic catalyst. Although the methanol raw material is relatively sufficient, the supply of isobutene is limited, especially in the reality that the demand for methyl tert-butyl ether is increasing sharply. The supply of isobutene raw material is increasingly unable to meet the actual large-scale industrial production needs. Therefore, the non-isobutylene preparation route of developing methyl tert-butyl ether, wherein producing methyl tert-butyl ether from tert-butanol and methanol is a very valuable and ...

Claims

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Application Information

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IPC IPC(8): B01J31/06C07C41/09C07C43/04C08J9/28C08J9/36C08F212/08C08F220/14C08F212/36C08L25/14
CPCB01J31/06C07C41/09C08J9/28C08J9/36C08F212/08C08J2325/14C07C43/046C08F220/14C08F212/36Y02P20/584
Inventor吕晓东王义成冷东斌段宏毅吴万春彭慧敏管秀明
Owner丹东明珠特种树脂有限公司