Method for producing aminoglucose hydrochloride

A technology of glucosamine hydrochloride and a production method, applied in the field of production technology of chemical raw materials, can solve the problems of high energy consumption, cumbersome operation, large sewage discharge, etc., save time and water, improve product quality, and eliminate grease Effect

Inactive Publication Date: 2008-02-20
YANGZHOU RIXING BIO TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the amount of ethanol required for washing hydrochloric acid is reduced, the process route is long and complicated, and the purpose of low-cost production cannot be achieved, and the problem of pollution cannot be overcome
In addition, due to the use of a large amount of water in the reaction process, the operation is cumbersome, the energy consumption is high, and the sewage discharge is large.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] Specific process steps:

[0020] 1. Acid hydrolysis

[0021] In the cleaned reactor, put 10kg of chitin and 50kg of hydrochloric acid, and control the temperature below 50°C. After the materials are fed, the temperature is raised to 85°C for 3 hours, and the temperature is controlled at 85°C to 88°C. After acid hydrolysis, the crude material liquid is made.

[0022] 2. Decolorization and pressure filtration

[0023] Add 1kg of medicinal activated carbon directly to 60kg of crude product liquid for decolorization, the time is controlled at more than 30 minutes, the temperature is lowered to 50°C and the filter is pressed, and the filtrate enters the transfer barrel.

[0024] 3. Ultrafine filtration

[0025] The filtrate is firstly filtered through a membrane with a diameter of Ф0.45mm, and then filtered through a membrane with a diameter of Ф0.22mm. The purified filtrate is concentrated, and the material liquid discharged from the sewage is returned to decolorize aga...

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PUM

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Abstract

The invention provides a production method of gluvosamine hydrochloride relating to a production technique of chemical raw material. The production method comprises acidolysis, decolouration, press filtration, purification, concentration, crystallization, baking, grinding, cribration, and packaging. In the process of production, the products of the invention regulates the proportion between hydrochloric acid and chitin to 5 to 1 under the temperature of 85 DEG C to 88 DEG C for three hours, activated carbon is added in a reaction container directly to decolor without refrigeration and crystallization, which omits the steps of separation of crude crystallization and water solution, thus saving time and water. The crude liquid after being filtered through a press filter is not directly concentrated but is filtered by ultrafiltration system to remove oil and fat and inorganic salts, which solves the problem of clarity and luminous transmittance of products and improves production quality.

Description

technical field [0001] The invention relates to a production process of chemical raw materials. Background technique [0002] Glucosamine hydrochloride, also known as glucosamine hydrochloride, is a natural mucopolysaccharide containing a lot of fiber. The genuine product is a white crystalline powder. It is widely used in medicine and can be used as an anti-bacterial infection and immune adjuvant. It is an activator of the human body's anti-influenza virus, and it also has the effects of effectively treating rheumatoid arthritis, enhancing human body functions, anti-aging, softening blood vessels and preventing cancer. The traditional production method of glucosamine hydrochloride usually adopts the acid hydrolysis method of chitin. For example, the process steps of the preparation method of glucosamine hydrochloride whose patent number is 01127784.X are: acid hydrolysis, filtration, concentration, purification, reconcentration, cooling , filter, spray ethanol, extract eth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08B37/00
Inventor 张和戚善龙杨生桂张超
Owner YANGZHOU RIXING BIO TECH
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