Composite catalytic membrane applied to catalytic esterification and preparation method thereof

A technology for catalyzing esterification and catalytic membrane, which is applied in catalyst activation/preparation, reaction preparation of ester group and hydroxyl group, preparation of organic compounds, etc. and other problems, to achieve the effect of high catalytic esterification efficiency, easy control, and improved catalytic performance
CN102958586BInactive Publication Date: 2014-07-02TIANJIN POLYTECHNIC UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
TIANJIN POLYTECHNIC UNIV
Publication Date
2014-07-02
Estimated Expiration
Not applicable · inactive patent

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Abstract

Provided are a composite catalytic membrane for catalyzing an esterification reaction and a preparation method thereof. The composite catalytic membrane has a porous structure, with non-woven fabric as the base film, and a catalytic coating is compounded on the surface of the non-woven fabric and in the pores and gaps of the non-woven fabric fibers. The catalytic coating uses a solid acid as a catalyst to polymerize Compound or modified sulfonated polymer is used as film-forming material, and the film is formed by coating method or impregnation method, and after forming, it is cross-linked to obtain a composite catalytic membrane. Utilizing the microporous structure and developed specific surface of the composite catalytic membrane, the catalytic esterification and the greening and high efficiency of the biodiesel preparation process are realized. The composite catalytic membrane has high mechanical strength and good repetition stability, and is easy to realize the continuous production repetition of the catalytic esterification process. The preparation process is simple and easy to control and scale up.
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Description

technical field

[0001] The invention belongs to the technical field of membrane materials and catalysis, and in particular relates to a composite catalytic membrane for catalyzing esterification and a preparation method thereof, in particular to a novel composite membrane which can be used for catalytic esterification of organic acids and alcohols and preparation of biodiesel. Catalytic membrane and method for its preparation. The international patent main classification number is proposed to be Int.Cl.B01D71 / 02. Background technique

[0002] Organic carboxylic acid esters are important fine chemical products, often used as solvents and fragrances, and can be used in synthetic fragrances, cosmetics, food and feed additives, surfactants, anti-corrosion and anti-fungal agents, plasticizers for rubber and plastics, and pharmaceuticals. Raw materials and intermediates, etc., long-chain organic carboxylic acid esters are also used as biodiesel to replace petrochemical diesel. T...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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