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Method and apparatus for producing lithium chloride

A technology for preparing a device and lithium chloride, applied in the direction of alkali metal chloride, etc., can solve the problems of complex process, environmental problems of waste residues, labor costs, and high management costs.

Active Publication Date: 2021-02-09
RES INST OF IND SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, when lithium is extracted by a wet method using sulfuric acid, various costs such as labor costs and management costs are high due to the complexity of the process.
Not only that, there will be environmental problems caused by waste residues

Method used

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  • Method and apparatus for producing lithium chloride
  • Method and apparatus for producing lithium chloride
  • Method and apparatus for producing lithium chloride

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preparation example Construction

[0031] The preparation method of lithium chloride according to one embodiment of the present invention may include the step of mixing spodumene ore and chlorine gas to perform a chlorination reaction and the step of generating lithium chloride gas through the chlorination reaction and sublimating the gas .

[0032] First, spodumene ore (LiAlSi 2 o 6 ) is mixed with chlorine gas to carry out the step of chlorination reaction.

[0033] The specific reaction is shown in Reaction Formula 1 below.

[0034] [Reaction 1]

[0035] LiAlSi 2 o 6 (s)+1 / 2Cl 2 (g)=LiCl+1 / 4O 2 (g)+1 / 6Al 6 Si 2 o 13 (s)+5 / 3SiO2 2

[0036] Specifically, the lithium element contained in the spodumene ore can be extracted in the form of lithium chloride by performing a chlorination reaction after mixing the spodumene ore and chlorine gas.

[0037] The chlorination reaction step may be carried out at a temperature range of 1100°C or higher.

[0038] In the temperature range, a reaction such as the ...

Embodiment

[0085] After spodumene ore and coke are fed into a hopper into a flow chlorinator, chlorine gas is further added to the flow chlorinator to perform a chlorination reaction. At this time, the particle size of ore and coke is maintained in the range of about 100 μm to 400 μm.

[0086] The method of receiving from the hopper is to mix the spodumene ore and coke and inject it into the hopper from the top.

[0087] The flow rate of the chlorine gas is 1000 sccm / min. The internal pressure of the mobile chlorinator is 1 atm.

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Abstract

The present invention relates to a method and an apparatus for producing lithium chloride. One embodiment of the present invention provides a method for producing lithium chloride, comprising the steps of: mixing spodumene ore, coke, and chlorine gas for a chlorination reaction; and generating lithium chloride gas by the chlorination reaction, and depositing the gas.

Description

technical field [0001] The invention relates to a preparation method of lithium chloride and a device thereof. Background technique [0002] With the application of lithium in various fields, more and more attention has been paid to the methods and technologies of recovering lithium resources. For example, spodumene (LiAlSi 2 o 6 ) ore to extract LiCl as Li 2 CO 3 raw materials. [0003] Currently, spodumene (LiAlSi 2 o 6 ) ore using a wet method to prepare LiCl. Specifically, the following process is adopted: oxidative roasting of spodumene, leaching and neutralization by sulfuric acid method, and preparation of Li 2 CO 3 . [0004] However, when lithium is extracted by a wet method using sulfuric acid, various costs such as labor costs and management costs are high due to complicated processes. Not only that, but also environmental problems caused by waste residues. [0005] Therefore, there is a need to develop environmentally friendly lithium extraction techn...

Claims

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Application Information

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IPC IPC(8): C01D3/04
CPCC01D3/04Y02P10/20
Inventor 郑恩辰吴上禄卞甲植金珍荣李橤橉
Owner RES INST OF IND SCI & TECH
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