Utilize lepidolite to prepare the mica processing technology of lithium carbonate
A treatment process, lithium carbonate technology, applied in the direction of improving process efficiency, etc., can solve the problems of high production cost, lack of industry competitive advantage, and many by-products, and achieve the effect of reducing maintenance frequency, improving effective working time, and less operation steps
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[0039] The production process of the present invention is briefly described as follows: Lepidolite and concentrated sulfuric acid are calcined at high temperature and fluorine is removed → slurry → slurry drying → slurry roasting → material is leached with water → cooling crystallization → centrifugal separation → neutralization and removal of impurities → evaporation and concentration → sink lithium.
[0040] Concrete method is: utilize lepidolite to prepare the mica processing technology of lithium carbonate, it is characterized in that:
[0041] (1) Lepidolite and dilute sulfuric acid are put into the reaction kettle at high temperature and normal pressure according to a certain proportion; 3-4; the high temperature is 1600-1900°C; the reaction period is 45-75 minutes;
[0042] (2) The reacted slurry is added to the dried silica sand by-products in the workshop for mixing; the mixing ratio of slurry and silica sand by-products is 5-10:1;
[0043] (3) The mixed powder ente...
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