Novel nitrogen-modified composite metal oxide plug-in catalyst and application thereof

A composite metal and catalyst technology, which is applied in the synthesis field of new nitrogen-modified composite metal oxide intercalated catalysts, can solve the problems of poor selectivity and high catalyst preparation cost, and achieve strong solubilizing ability, excellent comprehensive performance, and easy rinsing Effect

Active Publication Date: 2021-03-19
WANHUA CHEM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The core of this technology is a catalyst. Metal carboxylates are often used as catalysts in China. The catalyst preparation cost of this method is relatively high, and the selectivity is poor. There is 1% polyethylene glycol by-product in CN201680050314.X, which does not reduce the by-product , increasing selectivity

Method used

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  • Novel nitrogen-modified composite metal oxide plug-in catalyst and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Add MgO 80g in 2L autoclave, add the Al(NO of 10wt%) 3 ) 3 500g of aqueous solution and 10g of ammonium nitrate were immersed for 30 hours at 40°C; 500g of 20% sodium hydroxide was added to the reactor at one time, and the temperature was raised to 70°C for 1 hour; React for 30 hours; after the reaction, wash, dry, and grind to obtain a catalyst, which is designated as CAT-1.

Embodiment 2

[0030] Add MgO 100g in 2L autoclave, add 10wt% Co(NO 3 ) 2 Liquid 500g and ammonium nitrate 5g, impregnated at 50°C for 25 hours; 600g mass fraction of 20% sodium hydroxide was added to the reactor at one time, and the temperature was raised to 80°C for 1 hour; React for 30 hours; after the reaction, wash, dry, and grind to obtain a catalyst, which is designated as CAT-2.

Embodiment 3

[0032] Add MgO 90g in 2L autoclave, add the Al(NO 3 ) 3 500g of aqueous solution and 15g of ammonium nitrate were immersed at 50°C for 30h; 500g of 20% sodium hydroxide was added to the reactor at one time, and the temperature was raised to 70°C for 1h; React for 30 hours; after the reaction, wash, dry, and grind to obtain a catalyst, which is designated as CAT-3.

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Abstract

The invention discloses a synthesis method of a novel carboxylic ester ethoxylation plug-in catalyst, the catalyst is a nitrogen modified composite metal oxide catalyst, a hydrothermal impregnation method is adopted for synthesis, the synthesis method is simple and easy to operate, the catalyst selectivity is good, and the catalytic performance is excellent; in a preferable scheme, a titanate auxiliary agent is added when carboxylic ester ethoxylate is synthesized, so that the selectivity of the catalyst is further improved, the content of a byproduct polyethylene glycol is lower than 0.5%, and the catalytic performance can reach more than 5gEO/gCat/min.

Description

technical field [0001] The invention relates to a synthesis method of a novel nitrogen-modified composite metal oxide insertion catalyst and its application in carboxylate insertion ethoxylation reactions. Background technique [0002] In the daily chemical industry, using plant raw materials instead of mineral raw materials and using green surfactants and additives to develop green detergents has become the development trend of the future washing industry. Grease-based ethoxylate is generally a new type of green surfactant prepared by inserting ethoxylation of fatty acid methyl ester. This kind of product can be obtained by sulfonation of fatty acid methyl ester ethoxylate sulfonate. Strong oil solubilizing and emulsifying properties; mild, non-toxic and non-irritating, good skin compatibility, can reduce the irritation of formulated products; low foam; it is a kind of environmentally friendly green non-ionic surfactant. [0003] The core of this technology is a catalyst. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/24B01J37/02B01J37/03B01J37/10C07C67/26C07C69/24
CPCB01J27/24B01J23/002B01J37/0201B01J37/031B01J37/10C07C67/26C07C69/24
Inventor 刘洋秦承群殷玲李付国姜明陆国太
Owner WANHUA CHEM GRP CO LTD
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