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Catalyst for producing sec-butyl alcohol and ethyl alcohol through sec-butyl acetate hydrogenationm, preparation method and application thereof

A technology of sec-butyl acetate and catalyst, which is applied to the catalyst for hydrogenating sec-butyl acetate to produce sec-butanol and ethanol and the fields of preparation and application thereof, can solve the problems of high hydrogen ester and low product selectivity, and achieve high selectivity , the preparation method is simple, and the environment-friendly effect

Inactive Publication Date: 2015-11-11
SHANGHAI HUAYI GRP CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] One of the technical problems to be solved by the present invention is the problem of high hydrogen ester ratio and low product selectivity in the prior art, and a new catalyst for the hydrogenation of sec-butyl acetate to produce sec-butanol and ethanol is provided

Method used

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  • Catalyst for producing sec-butyl alcohol and ethyl alcohol through sec-butyl acetate hydrogenationm, preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] 60.4g of Cu(NO 3 ) 2 , 5.0g La(NO 3 ) 3 , 74.4gZn(NO 3 ) 2 Place in a beaker, add 500g of distilled water to dissolve it completely, and record it as solution 1; 53.7g of Na 2 CO 3 Put it in another beaker, add 500g of distilled water to dissolve it completely, and record it as solution 2; add solution 2 dropwise to solution 1 under the condition of heating and stirring, keep the temperature at 80°C, control the pH value of the reaction end point to 7.0, and then age After 3 hours, the catalyst was washed and filtered, dried at 80°C for 15 hours, and calcined at 350°C for 6 hours.

[0029]The prepared catalyst was made into particles with a size of 20-30 meshes, loaded into a tubular reactor with a diameter of 12 mm, and activated under a hydrogen atmosphere at 300°C for 6 hours. Using sec-butyl acetate as raw material, the reaction temperature is 210°C, and the liquid hourly space velocity is 1.0h -1 , the ratio of hydrogen to ester is 15:1, and the reaction pr...

Embodiment 2

[0031] 60.4g of Cu(NO 3 ) 2 , 10.0g of Zr(NO 3 ) 4 and 74.4gZn(NO 3 ) 2 Place in a beaker, add 500g of distilled water to dissolve it completely, and record it as solution 1; 53.7g of Na 2 CO 3 Put it in another beaker, add 500g of distilled water to dissolve it completely, and record it as solution 2; add solution 1 and solution 2 at the same time under heating and stirring for precipitation, keep the pH value at 7.0, and the temperature at 80°C, and then age for 3 hours , the catalyst was washed and filtered, dried at 80°C for 15 hours, and calcined at 500°C for 6 hours. The evaluation process conditions are the same as in Example 1.

Embodiment 3

[0033] 60.4g of Cu(NO 3 ) 2 , 10.0g of Ce(NO 3 ) 4 , 74.4gZn(NO 3 ) 2 Place in a beaker, add 500g of distilled water to dissolve it completely, and record it as solution 1; 53.7g of Na 2 CO 3 Put it in another beaker, add 500g of distilled water to dissolve it completely, and record it as solution 2; add solution 1 dropwise to solution 2 under the condition of heating and stirring, keep the temperature at 80°C, control the pH value of the reaction end point to 7.0, and then age After 3 hours, the catalyst was washed and filtered, dried at 80°C for 15 hours, and calcined at 400°C for 6 hours. The evaluation process conditions are the same as in Example 1.

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Abstract

The invention relates to a catalyst for producing sec-butyl alcohol and ethyl alcohol through sec-butyl acetate hydrogenationm, a preparation method and application thereof, and mainly solves the problems that in the prior art, hydrogen ester is relatively high, and the product is relatively low in selectivity. Through the adoption of the technical scheme of the catalyst for producing sec-butyl alcohol and ethyl alcohol through sec-butyl acetate hydrogenationm, the preparation method and application thereof, the problems are well solved. The catalyst contains copper or copper oxide, a second component and a third component, wherein the second component is one or more selected from ZnO, ZrO2, TiO2 and Al2O3; the third component is one or more selected from La2O3, CeO2, Fe2O3, CaO, MgO, MnO and B2O3; the mass content of copper or copper oxide in the catalyst is 20-70%; the mass content of the second component is 15-60%; the mass content of the third component is 1-40%. The catalyst can be used for co-producing sec-butyl alcohol and ethyl alcohol through sec-butyl acetate hydrogenationm.

Description

technical field [0001] The invention relates to a catalyst for hydrogenating sec-butyl acetate to produce sec-butanol and ethanol, a preparation method and application thereof. Background technique [0002] In recent years, the domestic coal chemical industry has developed vigorously, and a large number of devices for synthesizing acetic acid by methanol low-pressure carbonylation have been built, resulting in a large excess production capacity of acetic acid, and the price of acetic acid continues to slump. Petrochemical and coal chemical by-products are abundant mixed C4 resources. The technology of preparing sec-butyl acetate through the addition and esterification of acetic acid and butene has been industrialized. Along with sec-butyl acetate expands rapidly in production scale, it becomes a kind of bulk chemical product gradually, but sec-butyl acetate is limited as solvent market, and this limits the popularization of sec-butyl acetate technology. [0003] Second-but...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/83B01J23/80B01J23/72B01J23/889B01J23/78B01J23/745C07C29/149C07C31/08C07C31/12
Inventor 李永刚付朋向浩孙思杰王敏芝宁春利张春雷
Owner SHANGHAI HUAYI GRP CO
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