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Method for preparation of anhydrous magnesium chloride

A technology of anhydrous magnesium chloride and hydrogen chloride, applied in the direction of magnesium chloride, magnesium halide, etc., can solve the problems of short time, large-scale production cost, and low dehydration temperature

Inactive Publication Date: 2007-09-26
谷亮
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The invention adopts microwave energy for heating, low dehydration temperature, short time, high rate, remarkable energy saving by selective heating, realizes industrialized continuous operation, and high production efficiency, but this process has the limitations of not being able to mass-produce and high cost!

Method used

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  • Method for preparation of anhydrous magnesium chloride

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Experimental program
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Effect test

Embodiment Construction

[0018] Hydrated magnesium chloride (MgCl 2 2H 2 O) The fine powder (50μm-1000μm) is sent into the pyrolysis reactor to control the relevant conditions.

[0019] The temperature of the hydrogen chloride synthesis furnace is greater than 600°C, adjust the synthesis amount of HCl gas so that the temperature at the top of the pyrolysis reactor is 338°C, and the pressure at the top of the pyrolysis reactor is controlled at 0-1000mmH 2 O.

[0020] The obtained result of above-mentioned embodiment is as follows:

[0021] 1. The pyrolysis rate of low-water magnesium chloride is greater than 98%

[0022] 2. The content of anhydrous magnesium chloride is greater than 92%

[0023] 3. Hydrochloric acid concentration 31-36%

[0024] 4. There is no gas leakage and no pollutant discharge during the system and production process.

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Abstract

The invention discloses a preparing method of waterless chlorinate and industrial alcaine, which comprises the following steps: choosing low chlorinate (MClN.H2O-MClN.3H2O), hydrogen gas and chlorine gas as raw material; using high temperature hydrochloride gas generating by burning hydrogen gas and chlorine gas; carrying low chlorinate into pyrolytic reactor; transferring heat with high temperature hydrochloride gas; generating pyrogenic reactor under the catalysis of electromagnetic wave through the pyrolytic reactor; getting waterless chlorinate and water vapor; entering part gas phase material into hydrochloride synthetic furnace through air-solid segregation; proceeding cyclical usage; displacing left gas phase material into hydrochloride recovery system; getting industrial alcaine.

Description

technical field [0001] What the present invention relates to is by low water magnesium chloride (MgCl 2 ·H 2 O-MgCl 2 2.5H 2 O), hydrogen and chlorine prepare the method for anhydrous magnesium chloride and industrial hydrochloric acid, say exactly the method for preparing anhydrous magnesium chloride and industrial hydrochloric acid with the method of " composite catalytic fluidized pyrolysis ", belong to fluidized reaction engineering, industrial Anhydrous magnesium chloride and industrial hydrochloric acid preparation field. [0002] Anhydrous magnesium chloride is a main raw material for the production of metal magnesium, and there has been no large-scale industrial production of anhydrous magnesium chloride in my country. The research on the production of industrial anhydrous magnesium chloride has always been valued by our country. Background technique [0003] At present, the production methods of anhydrous magnesium chloride are as follows: [0004] 1. Chinese ...

Claims

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Application Information

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IPC IPC(8): C01F5/34
Inventor 谷亮
Owner 谷亮
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