Method for producing L-ornithine hydrochloride

Abstract

The invention discloses a method for producing L-ornithine hydrochloride through weak Ba(OH)2 hydrolysis L-arginine hydrochloric salts, neutralizing with dilute sulfuric acid, removing Ba2+, obtaining L-ornithine hydrochloride crystallized crude product through concentrated crystallization, re-crystallizing in pure water to obtain the pure product.

Description

technical field [0001] The invention belongs to the preparation method of amino acid, in particular to the preparation method of L-ornithine hydrochloride. Background technique [0002] Developing amino acid production to meet the growing needs of my country's medical care industry is a long-term goal pursued by some governments and competent departments in our country. The production process of amino acids includes many ways such as synthesis, microbial fermentation, natural protein extraction, and enzymatic synthesis. Microbial fermentation and enzymatic synthesis are popular methods in foreign countries. The development cycle of this type of process is long and the capital investment is large. Along this route, my country is at a relatively disadvantaged position. For this reason, we need to vigorously develop the production process and products suitable for our country's national conditions, to gain a firm foothold in the international market on the basis of several lea...

AI Technical Summary

Problems solved by technology

[0005] The method of chemical hydrolysis of L-arginine hydrochloride, although the reagents are easy to get, it is easy to cause amino acid racemization

This problem has not been well resolved, but was shelved

Since then, there have been no production patents and related reports on the production of L-ornithine hydrochloride by alkaline hydrolysis of L-arginine hydrochloride

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