Technology for producing magnesium chloride with medicinal application

A production process, magnesium chloride technology, applied in the direction of magnesium chloride, magnesium halide, etc., can solve the problems of non-compliance with GMP regulations, man-made pollution, low labor efficiency, etc., and achieve significant economic benefits, low operating costs, and improved production efficiency.

Inactive Publication Date: 2016-10-12
天津海光药业股份有限公司
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

This kind of production method has caused inevitable artificial pollution to the pr

Method used

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Examples

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Example Embodiment

[0033] Example 1

[0034] A production process of medicinal magnesium chloride includes the following steps:

[0035] (Ⅰ) Preparation of magnesium chloride solution

[0036] Dissolve industrial magnesium chloride in the dissolution tank, and control the mass concentration of the obtained magnesium chloride solution to 35%;

[0037] (Ⅱ) Magnesium chloride solution pretreatment

[0038] (A) Remove SO in the solution 4 2-

[0039] Take the magnesium chloride solution obtained in step (i) for SO 4 2- For content determination, add 80% equivalent of barium chloride to the magnesium chloride solution according to the measurement result, and then let it stand for 24 hours;

[0040] (B) Adjust the pH of the solution

[0041] Extract the supernatant of the dissolved solution obtained in step (a), and adjust the pH of the supernatant to be slightly acidic;

[0042] (Ⅲ) Evaporative concentration of magnesium chloride solution

[0043] Add the supernatant obtained in step (b) to the evaporation tank. Af...

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PUM

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Abstract

The invention discloses a technology for producing magnesium chloride with medicinal application. The technology comprises the following steps: i) preparing a magnesium chloride dissolving solution; ii) pre-treating the magnesium chloride dissolving solution; iii) performing the magnesium chloride dissolving solution; iv) cooling the magnesium chloride dissolving solution and performing crystallization; v) separating magnesium chloride; vi) drying magnesium chloride; and vii) recycling mother liquor. The technology employs continuous evaporation of a reaction treatment fluid clear liquid layer, continuous collection of a magnesium chloride evaporation concentrate, continuous transshipment of the material for cooling crystallization, continuous centrifugal dewatering and continuous drying; processes are continuous, operation cost is low, the production efficiency is greatly increased, the technology accords with the special requirement of medicine quality by GMP, and has remarkable economic benefit.

Description

technical field [0001] The invention belongs to a production method of magnesium chloride, in particular to a production process of medicinal magnesium chloride. Background technique [0002] In the production of medicinal magnesium chloride, how to realize continuous production has always been one of the technical problems that plague production enterprises. Because the solubility of medicinal magnesium chloride is greatly affected by temperature, the traditional production process is to take forced cooling and crystallization of the evaporated concentrate, then break the crystallization, and then use manual excavation and fishing to send the solid-liquid mixture of magnesium chloride in the cooling liquid to A centrifuge is used for solid-liquid separation, and the centrifuged dehydrated solid magnesium chloride is then dried. Such a production method has caused inevitable artificial pollution to the product, low labor efficiency, and does not meet the requirements of GMP...

Claims

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Application Information

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IPC IPC(8): C01F5/30
CPCC01F5/30
Inventor 刘素芹郑井瑞张国辉李庆会杨新峰
Owner 天津海光药业股份有限公司
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