Catalyst for preparing methyl sarcosine and sarcosine from methyl glycolate as well as preparation method and application of catalyst

Abstract

The invention discloses a catalyst for preparing methyl sarcosine and sarcosine from methyl glycolate. The catalyst is prepared from the following raw materials: cobalt salt, molybdenum salt, cesium salt, molecular sieve nanotubes and water, wherein the amounts of the cobalt salt, the molybdenum salt and the cesium salt are respectively metered by the mass of cobalt, molybdenum and cesium, and the total amount of the cobalt salt, the molybdenum salt, the cesium salt and the molecular sieve nanotube is metered by 100 parts, specifically, the cobalt salt accounts for 5-10 parts, the molybdenum salt accounts for 1-5 parts, the cesium salt accounts for 1-2 parts, and the balance is the molecular sieve nanotube; the element molecular sieve of the molecular sieve nanotube is a boron-containing molecular sieve; the cobalt salt, the molybdenum salt and the cesium salt are all water-soluble salts. Meanwhile, the invention also discloses a preparation method and application of the catalyst. The prepared catalyst is the composite monatomic metal molecular sieve nanotube, and when the catalyst is used for preparing methyl sarcosine and sarcosine, the raw material cost is low, the process route is simple and efficient, and the economic advantage is remarkable; separation and purification are simple, and product selectivity is high.

Description

technical field [0001] The invention belongs to the technical field of preparation of sarcosine methyl ester and sarcosine, and particularly relates to a catalyst for preparing sarcosine methyl ester and sarcosine from methyl glycolate and a preparation method and application thereof. Background technique [0002] Sarcosine is an organic compound with the chemical formula C 3 H 7 NO 2 , white orthorhombic crystal, slightly sweet, deliquescence, soluble in water, slightly soluble in alcohol, insoluble in ether, exists in starfish and sea urchin. [0003] It can be used as a dye stabilizer for industrial supplies, as an amino acid-based surfactant in daily chemicals, and has recently become the main raw material for the production of health care medicine fatigue recovery agent-water creatine, synthesis of anti-enzyme agents, and biological reagents. Creatine can improve people's intelligence, especially for occasions such as student exams that require "temporary improvement...

AI Technical Summary

Problems solved by technology

[0009] Aiming at the defects of the prior art, the present invention provides a catalyst for preparing methyl sarcosine and sarcosine from methyl glycolate and its preparation method and application. The catalyst is capable of catalyzing the preparation of methyl glycolate and monomethylammonia Sarcosine methyl ester can be further hydrolyzed to obtain sarcosine, which can solve the problems of high toxicity of raw materials, serious pollution of three wastes, high cost, and difficulty in product separation and purification in the preparation of sarcosine by hydroxyacetonitrile and chloroacetic acid.