L-carnitine production process

Abstract

The invention discloses an L-carnitine production process which comprises the raw materials: epichlorohydrin, water, a catalyst, trimethylamine hydrochloride, a 30% sodium cyanide solution, a 30% hydrochloric acid solution and a 20% ammonia water solution. The L-carnitine production process has the following beneficial effects that the raw material epichlorohydrin is firstly split, by-products can be sold, and the reaction yield is high; the product is low in total cost and easy to refine, and an epichlorohydrin synthesis method of a route of splitting, quaternary ammoniation and cyaniding is selected; the production process has the advantages of short synthesis route, high yield, high resource utilization rate, low cost and small three-waste generation amount, ammonia water and hydrochloric acid are used for reacting to adjust the pH value, and excessive alkaline substances are prevented; impurities such as epichlorohydrin, hydrogen chloride, ethanol and isopropanol are injected into water generated by drying, so that pollution caused by leakage is prevented, the generation of wastewater is reduced; and when the temperature is raised to 90 DEG C for centrifugal desalting, a part of heat is provided, so that the heat is recycled.

Description

technical field [0001] The invention discloses a production process of L-carnitine, which belongs to the technical field of food additive preparation. Background technique [0002] And with the improvement of living standards. The sub-health state of the population is on the rise, and at the same time, the awareness of health care is also increasing. As a new type of nutrient, L-carnitine integrates health care and medical treatment. It has attracted people's attention and its application has become increasingly widespread. Only a few countries such as Switzerland, Italy, and Japan can produce L-carnitine, and my country has just entered its production scope. However, due to its quality, output and other reasons, a large amount of L-carnitine is imported every year, and the price is very high. Expensive. For nearly half a century, L-carnitine has been a research hotspot. With more in-depth research and understanding of it, it will play a more important role in human health, a...

AI Technical Summary

Problems solved by technology

[0003] The production cost of L-carnitine using the direct extraction method is high, which is not suitable for industrialized production. The enzymatic conversion method and microbial fermentation method are difficult to produce on a large scale due to their small production scale due to their technological conditions. Therefore, the main methods for large-scale industrialized production are currently It is a chemical synthesis method. The existing chemical synthesis method splits and produces many by-products, and it is difficult to recycle. deal with