Catalyst and method for preparing glycine methyl ester and glycine from methyl glycolate by using bimetallic glass fiber layered eutectic

A technology of methyl glycolate and methyl glycine, which is applied to the catalyst for preparing methyl glycine and glycine from methyl glycolate and the field of preparation thereof, can solve the problems such as difficulty in obtaining a zero-valent metal-supported catalyst, and achieve significant economic advantages, Simple separation and purification, simple and efficient process route

Active Publication Date: 2020-08-07
SHAANXI YANCHANG PETROLEUM GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Silica is a good carrier for hydroxyl ammoniation, but it is difficult to obtain zero-valent metal-support

Method used

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  • Catalyst and method for preparing glycine methyl ester and glycine from methyl glycolate by using bimetallic glass fiber layered eutectic

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A bimetallic glass filament layered eutectic catalyst comprises 100 parts by weight, 5 parts of metal cobalt, 1 part of metal nickel, and the rest is vitrified silica carrier.

[0025] The preparation method of the bimetallic glass filament layered eutectic catalyst: take metal cobalt, metal nickel and vitrified silica carrier according to the above ratio, and mix metal cobalt and metal nickel with vitrified silica carrier under nitrogen atmosphere Finally, after heating to 1800°C, centrifuge at a speed of 150r / min for 15 minutes. Due to the high specific gravity, the metal is distributed on the outer layer of the vitrified silica carrier after centrifugation, forming a bimetallic-glass layered eutectic Through the glass filament drawing process, it is prepared into a metal-containing layered glass filament of 2-10 μm, that is, a bimetallic glass filament layered eutectic catalyst is obtained, and the loading of cobalt and nickel metal atoms on the outer surface of the g...

Embodiment 2

[0028] A bimetallic glass filament layered eutectic catalyst comprises 100 parts by weight, 5 parts of metal cobalt, 5 parts of metal nickel, and the rest is vitrified silica carrier.

[0029] The preparation method of the bimetallic glass filament layered eutectic catalyst: take metal cobalt, metal nickel and vitrified silica carrier according to the above ratio, and mix metal cobalt and metal nickel with vitrified silica carrier under nitrogen atmosphere Finally, after heating to 1600°C, centrifuge at a speed of 300r / min for 3 minutes. Due to the high specific gravity, the metal is distributed on the outer layer of the vitrified silica carrier after centrifugation, forming a bimetallic-glass layered eutectic Through the glass filament drawing process, it is prepared into a metal-containing layered glass filament of 2-10 μm, that is, a bimetallic glass filament layered eutectic catalyst is obtained, and the loading of cobalt and nickel metal atoms on the outer surface of the g...

Embodiment 3

[0032] A bimetallic glass filament layered eutectic catalyst comprises 100 parts by weight, 20 parts of metal cobalt, 5 parts of metal nickel, and the rest is vitrified silica carrier.

[0033] The preparation method of the bimetallic glass filament layered eutectic catalyst: take metal cobalt, metal nickel and vitrified silica carrier according to the above ratio, and mix metal cobalt and metal nickel with vitrified silica carrier under nitrogen atmosphere Finally, after heating to 1700°C, centrifuge at a speed of 280r / min for 2 minutes. Due to the high specific gravity, the metal is distributed on the outer layer of the vitrified silica carrier after centrifugation, forming a bimetallic-glass layered eutectic Through the glass filament drawing process, it is prepared into a metal-containing layered glass filament of 2-10 μm, and a bimetallic glass filament layered eutectic catalyst is prepared to realize the loading of cobalt and nickel metal atoms on the outer surface of the...

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Abstract

The invention belongs to the technical field of catalysts, and particularly relates to a catalyst and a method for preparing glycine methyl ester and glycine from methyl glycolate by using a bimetallic glass fiber layered eutectic. The invention relates to a catalyst for preparing glycine methyl ester and glycine from methyl glycolate by using a bimetallic glass fiber layered eutectic, which is characterized by comprising the following components in parts by weight: based on 100 parts of the total weight, 5-20 parts of metal cobalt, 1-5 parts of metal nickel and the balance of vitrified silicon dioxide carrier are prepared. The invention has the advantages of advanced technical route, no toxicity of raw materials, no emission of three wastes and zero pollution of the process.

Description

technical field [0001] The invention belongs to the technical field of catalysts, and in particular relates to a catalyst for preparing glycine methyl ester and glycine from methyl glycolate using bimetallic glass filament layered eutectic, as well as its preparation method and application. Background technique [0002] Glycine (abbreviated Gly) is also known as aminoacetic acid, and its chemical formula is C 2 h 5 NO 2 . Glycine is a constituent amino acid of the endogenous antioxidant reduced glutathione, and it is a semi-essential amino acid that is often supplemented with exogenous sources when the body is under severe stress. [0003] Solid glycine is white monoclinic or hexagonal crystal or white crystalline powder, odorless and non-toxic; easily soluble in water, almost insoluble in ethanol or ether. It is used in the pharmaceutical industry, biochemical experiments and organic synthesis. It is an amino acid with the simplest structure in the amino acid series and...

Claims

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Application Information

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IPC IPC(8): B01J23/755B01J35/06B01J37/08C07C229/08C07C227/08C07C227/18
CPCB01J23/755B01J35/06B01J37/08C07C227/08C07C227/18C07C2523/755C07C229/08Y02P20/584
Inventor 杨东元扈广法孙育滨张玉娟
Owner SHAANXI YANCHANG PETROLEUM GRP
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