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Catalysts for the ethoxylation of fatty acid methyl esters

A fatty acid methyl ester and ethoxylation technology, applied in the direction of physical/chemical process catalysts, organic compound/hydride/coordination complex catalysts, catalytic reactions, etc., can solve the problem of wide distribution of EO, many by-products, and EO distribution Narrow and other issues

Active Publication Date: 2020-06-09
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] One of the technical problems to be solved by the present invention is the wide distribution of EO and many by-products in the fatty acid methyl ester ethoxylation product existing in the prior art, and a new method for fatty acid methyl ester ethoxylation reaction is provided When the catalyst is used in the ethoxylation reaction of fatty acid methyl ester, it has the characteristics of narrow distribution of EO and few by-products of fatty acid methyl ester ethoxylation

Method used

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  • Catalysts for the ethoxylation of fatty acid methyl esters
  • Catalysts for the ethoxylation of fatty acid methyl esters

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Weigh 40g of layered sodium phosphate antimonate respectively (the layer spacing is ) and 10g of anhydrous calcium acetate and 50g of N-hydroxysuccinimide were added to 800g of pure water, hydrothermally treated at 85°C and 800rpm stirring speed for 4 hours, and left standstill for 10 hours; then dried at 110°C for 18 hours, tableted, broken , After sieving, take a 100-200 mesh sample as a catalyst.

[0038] 0.5 g of the above-mentioned catalyst was added to 100 g of methyl laurate, and put into a 1 L autoclave while stirring; the autoclave was heated to 80° C., vacuum-dried for 10 min, replaced with high-purity nitrogen three times, and heated to 150° C., Introduce EO, keep the temperature between 150 and 180 ° C, and keep the pressure at 0.4 MPa, react for 30 min to the amount of EO added to be 144 g, age for 30 min, cool to room temperature to release the material, weigh 244 g, and obtain an average EO addition number of 7. Methyl laurate ethoxylate. The content o...

Embodiment 2

[0040] Weigh the layered sodium phosphate antimonate (the interlayer spacing is ) and 10g of anhydrous calcium acetate and 50g of N-hydroxymaleimide were added to 800g of pure water, hydrothermally treated at 85°C and 800rpm stirring speed for 4 hours, and left to stand for 10 hours; then dried at 110°C for 18 hours, pressed. After flakes, crushing and sieving, 100-200 mesh samples are taken as catalysts.

[0041]0.5 g of the above-mentioned catalyst was added to 100 g of methyl laurate, and put into a 1 L autoclave while stirring; the autoclave was heated to 80° C., vacuum-dried for 10 min, replaced with high-purity nitrogen three times, and heated to 150° C., Introduce EO, keep the temperature between 150 and 180 ° C, and keep the pressure at 0.4 MPa, react for 30 min to the amount of EO added to be 144 g, age for 30 min, cool to room temperature to release the material, weigh 244 g, and obtain an average EO addition number of 7. Methyl laurate ethoxylate. The content of ...

Embodiment 3

[0043] Weigh 40g of layered sodium phosphate antimonate respectively (the layer spacing is ) and 10g of anhydrous barium acetate and 50g of N-hydroxysuccinimide were added to 800g of pure water, hydrothermally treated at 85 ° C and 800 rpm stirring speed for 4 hours, and allowed to stand for 10 hours; then dried at 110 ° C for 18 hours, tableted, After crushing and sieving, take 100-200 mesh samples as catalyst.

[0044] 0.5 g of the above-mentioned catalyst was added to 100 g of methyl laurate, and put into a 1 L autoclave while stirring; the autoclave was heated to 80° C., vacuum-dried for 10 min, replaced with high-purity nitrogen three times, and heated to 150° C., Introduce EO, keep the temperature between 150 and 180 ° C, and keep the pressure at 0.4 MPa, react for 30 min to the amount of EO added to be 144 g, age for 30 min, cool to room temperature to release the material, weigh 244 g, and obtain an average EO addition number of 7. Methyl laurate ethoxylate. The con...

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Abstract

The invention relates to a catalyst for ethoxylation of fatty acid methyl esters. A purpose of the present invention is mainly to solve the technical problems of wide EO distribution and more by-products in the catalyst reaction product in the prior art. The technical scheme comprises that the catalyst comprises (a) layered phosphatoantimonate, (b) an alkaline earth metal carboxylate, and (c) N-hydroxyimide. With the technical scheme, the technical problems in the prior art are well solved. The catalyst of the present invention can be used in the ethoxylation of fatty acid methyl esters.

Description

technical field [0001] The present invention relates to catalysts for the ethoxylation of fatty acid methyl esters. Background technique [0002] Ethoxylated fatty acid methyl esters (FMEE for short) is a new type of double-terminated ester ether type nonionic surfactant. Because fatty acid methyl ester ethoxylates have -OCH similar to oil at one end 3 , according to the principle of similar compatibility, compared with traditional fatty acid polyethers, fatty alcohol polyethers, etc., it has stronger decontamination ability, good water solubility, low melting point, strong emulsifying and dispersing ability, and less foam. The product is easily degradable and is a real environment-friendly surfactant. Fatty acid methyl ester compounds are widely used in leather, textile and cosmetic industries. FMEE is close to the TX, NP and OP series containing APEO in various performances. Under the background of strict environmental protection requirements abroad, using FMEE instead ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J31/26C07C67/26C07C69/24
CPCB01J31/26B01J2231/49C07C67/26C07C69/24
Inventor 肖忠斌朱小丽孙广斌
Owner CHINA PETROLEUM & CHEM CORP
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