Purification system for lithium carbonate

一种碳酸锂、反应罐的技术,应用在碳酸锂领域,能够解决增大搅拌混合旋转力、降低反应面积、溶解度大等问题,达到降低旋转力、增加反应面积、提高利用率的效果

Active Publication Date: 2020-06-05
YAHUA LITHIUM IND (YAAN) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Lithium carbonate is a common raw material for lithium-ion batteries. It is an inorganic compound with a chemical formula of Li2CO3. It is a colorless monoclinic crystal or white powder with a density of 2.11g / cm3 and a melting point of 723°C. It is soluble in dilute acid and slightly soluble in Water, the solubility in cold water is higher than that in hot water, insoluble in alcohol and acetone, can be used to make ceramics, medicines, catalysts, etc., commonly used raw materials for lithium-ion batteries, the usual preparation method is: sintering spodumene and limestone at high temperature to produce aluminum It can also be prepared by leaching lithium hydroxide solution with lithium hydroxide and reacting with sodium carbonate. It can also be prepared by using brine to extract lithium-containing material liquid after barium chloride, removing calcium and magnesium ions with soda ash, acidifying with hydrochloric acid, and then reacting with soda ash. , and the prepared lithium carbonate often has many impurities, that is, the purity is not high;
[0003] Moreover, when feeding into the mixing reaction tank, the reaction material will fall along the feed pipe to the same position of the mixing reaction tank, causing accumulation, reducing the reaction area, and increasing the rotation force required for stirring and mixing. Here we propose a purification system for lithium carbonate

Method used

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Embodiment Construction

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0020] see Figure 1-Figure 3 , the present invention provides a technical solution: a purification system for lithium carbonate, comprising a mixing reaction tank 1, a waste material collection chamber 5 is installed at the bottom of the mixing reaction tank 1, and a waste material outlet is installed on the bottom surface of the mixing reaction tank 1. Valve 4, feeding pipe 9 is installed on the upper end surface of mixing reaction tank 1, submersible pump 2...

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Abstract

The invention discloses a purification system for lithium carbonate. The system comprises a mixing reaction tank, a waste collecting chamber is mounted at the bottom of the mixed reaction tank, a waste outlet valve is mounted on the surface of the bottom end of the mixed reaction tank, a feeding pipe is mounted on the upper end surface of the mixed reaction tank, a submersible pump is mounted in the waste collecting chamber, the other end of the mixed reaction tank is connected with a reduced pressure distillation tank through a pipeline, a filter is mounted on the pipeline between the mixed reaction tank and the reduced pressure distillation tank, one end of the reduced pressure distillation tank is connected with a filtering tank through a pipeline, and the waste collecting chamber, andthe filtering tank and the reduced pressure distillation tank are all mounted on the upper surface of a mounting base. By means of the centrifugal discharging mode, reaction materials can be dispersedeverywhere after being fed into the mixing reaction tank, so that the reaction area is increased, the reaction efficiency is improved, meanwhile, the rotating force required by stirring and mixing isreduced, and more energy is saved.

Description

technical field [0001] The invention belongs to the technical field of lithium carbonate, in particular to a purification system for lithium carbonate. Background technique [0002] Lithium carbonate is a common raw material for lithium-ion batteries. It is an inorganic compound with a chemical formula of Li2CO3. It is a colorless monoclinic crystal or white powder with a density of 2.11g / cm3 and a melting point of 723°C. It is soluble in dilute acid and slightly soluble in Water, the solubility in cold water is higher than that in hot water, insoluble in alcohol and acetone, can be used to make ceramics, medicines, catalysts, etc., commonly used raw materials for lithium-ion batteries, the usual preparation method is: sintering spodumene and limestone at high temperature to produce aluminum It can also be prepared by leaching lithium hydroxide solution with lithium hydroxide and reacting with sodium carbonate. It can also be prepared by using brine to extract lithium-contai...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01D15/08B01J19/18B01J4/00
CPCC01D15/08B01J19/1881B01J4/007B01J2204/002Y02P20/10
Inventor 董兴旺陈红何俊代永跃颜书荣
Owner YAHUA LITHIUM IND (YAAN) CO LTD
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