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Strong acid type cationic resin catalyst, and catalytic preparation and application of ethyl tert-butyl ether of strong acid type cationic resin catalyst

A cationic resin and catalyst technology, which is applied in the direction of ether preparation, physical/chemical process catalyst, unsaturated compound addition to prepare ether, etc., can solve the problem of aggravating the material consumption and energy consumption of ethyl tert-butyl ether, and affecting the production of ethyl tert-butyl ether. Problems such as the purity of ether products, the content of carbon tetraethanol after increasing ether, etc., to achieve the effects of reducing ethanol content, improving product purity, and reducing the molar ratio of alcohols to alkenes

Inactive Publication Date: 2018-06-08
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

However, the production and preparation of ethyl tert-butyl ether still needs research and development support for technological innovation. Among them, the existing ethyl tert-butyl ether etherification preparation has technical problems such as large alcohol-to-ene ratio, unsatisfactory conversion rate and selectivity, which are aggravated. Reduce the material consumption and energy consumption of ethyl tert-butyl ether preparation, increase the ethanol content of carbon four after ether, increase the burden of subsequent treatment, and thus affect the product purity of ethyl tert-butyl ether

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Catalyst C-1

[0022] In a stainless steel stirred tank equipped with a reflux condensing device, add 2000 g of water and a surfactant, heat with stirring, and completely dissolve to obtain a water phase. When the temperature of the stainless steel stirred tank is raised to 60 ° C, add an oil phase mixed with an organic phase, and then The temperature is 80°C, the stirring speed is 60r / min, the polymerization reaction is 8 hours, and the copolymer white ball is obtained; the surfactant is 20g sorbitan ester, 20g alkylphenol polyoxyethylene ether, 10g secondary alkylsulfonic acid Sodium and 10g sodium cetyl benzene sulfonate, described oil phase consists of 500g p-tert-butylstyrene, 400g divinylbenzene, 20g n-pentane and 10g benzoyl peroxide;

[0023] The finished catalyst product obtained by the pore purification and sulfonation of the copolymer white balls, wherein the pore purification: the copolymer white balls obtained by filtering are placed in deionized water at 7...

Embodiment 2

[0026] Catalyst C-2

[0027] In a stainless steel stirred tank equipped with a reflux condensing device, add 2500 g of water and a surfactant, heat with stirring, and completely dissolve to obtain a water phase. When the temperature of the stainless steel stirred tank is raised to 70 ° C, add an oil phase mixed with an organic phase, and then The temperature is 85°C, the stirring speed is 80r / min, the polymerization reaction is 10 hours, and the copolymer white ball is obtained: the surfactant is 30g sorbitan ester, 50g alkylphenol polyoxyethylene ether, 20g secondary alkylsulfonic acid Sodium and 20g sodium cetylbenzenesulfonate, described oil phase component is respectively 600g p-tert-butylstyrene, 500g divinylbenzene, 50g acetone and 30g benzoyl peroxide;

[0028] The finished catalyst product obtained by the pore purification and sulfonation of the copolymer white spheres, wherein the pore purification: the filtered copolymer white spheres were placed in deionized water a...

Embodiment 3

[0031] Catalyst C-3:

[0032] In a stainless steel stirred tank equipped with a reflux condensing device, add 2200 g of water and a surfactant, heat with stirring, and completely dissolve to obtain a water phase. When the temperature of the stainless steel stirred tank is raised to 70° C., add an oil phase mixed with an organic phase, and The temperature is 90°C, the stirring speed is 100r / min, and the polymerization reaction is carried out for 8 hours to obtain the copolymer white ball; the surfactant is 40g sorbitan ester, 40g alkylphenol polyoxyethylene ether, 20g secondary alkyl sulfonate Natrate and 20g sodium cetylbenzenesulfonate, the oil phase consists of: 550g p-tert-butylstyrene, 450g divinylbenzene, 20g n-pentane and 20g benzoyl peroxide;

[0033] The finished catalyst product obtained by the pore purification and sulfonation of the copolymer white balls, wherein the pore purification: the copolymer white balls obtained by filtering are placed in deionized water at ...

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PUM

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Abstract

The invention provides a strong acid type cationic resin catalyst, and catalytic preparation and application of ethyl tert-butyl ether of the strong acid type cationic resin catalyst. The strong acidtype cationic resin catalyst is obtained by performing suspension copolymerization on tert-butyl styrene and a divinyl benzene monomer under the action of a pore-foaming agent and a surfactant comprising sorbitan ester, alkylphenol ethoxylates, paralkyl sodium sulfonate and sodium hexadecyl benzene sulfonate to obtain a copolymer white ball and then performing pore purification and sulfonation. The invention further provides the catalytic preparation and application of ethyl tert-butyl ether of the strong acid type cationic resin catalyst. According to the technical scheme, a preparation method of the catalyst is safe, simple and convenient; practice also proves that the catalyst is applied to the ethyl ether tert-butyl ether catalytic etherification process to show higher activity and stability, the molar ratio of alcohol to alkene is reduced, the iso-butene conversion rate is 95 percent or higher, and the selectivity of the ethyl ether tert-butyl ether is higher than 99 percent.

Description

technical field [0001] This patent application relates to a strong-acid cationic resin catalyst, in particular to the catalytic application of the catalyst in the etherification preparation of ethyl tert-butyl ether. Background technique [0002] Environmental protection laws and regulations have proposed new application specifications for unleaded gasoline for vehicles. MTBE has been widely used as an excellent blending component for the production of unleaded, oxygenated and high-octane gasoline for many years. Since the United States found traces of MTBE in groundwater , MTBE environmental issues have attracted public attention, and the U.S. Environmental Protection Agency has made a ruling on MTBE's carcinogenicity. Ethyl tert-butyl ether has similar physical and chemical properties to MTBE, and it has excellent oil-adjusting performance. It is the general trend to replace MTBE with ethyl tert-butyl ether. However, the production and preparation of ethyl tert-butyl ethe...

Claims

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Application Information

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IPC IPC(8): B01J31/10C07C41/06C08F212/36C08F212/06C08F2/26C08F2/30C08J9/04C08J9/40
CPCB01J31/10C07C41/06C08F2/26C08F2/30C08F212/06C08J9/04C08J9/40C08J2325/16C07C43/04C08F212/36
Inventor 吕晓东王义成冷东斌段宏毅何罡吴万春王英杰管秀明张蕾
Owner 丹东明珠特种树脂有限公司
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