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Method for efficiently extracting lithium carbonate from clay type lithium ore by selective adsorption method
The invention discloses a method for efficiently extracting lithium carbonate from clay type lithium ore by a selective adsorption method. The clay type lithium ore is crushed and finely ground, and powdery clay type lithium ore is obtained; roasting the powdery clay type lithium ore at high temperature to obtain a roasted product; a dilute acid solution is added into the roasted product for leaching and separation, a leaching solution and high-silicon slag are obtained, and the high-silicon slag serves as a cement production raw material; a NaOH solution is added into the leachate to adjust the pH value of the leachate, stirring adsorption and separation are conducted, and precipitates and supernate are obtained; the precipitate is roasted, the roasted product is subjected to water leaching and solid-liquid separation, a leaching solution and an insoluble substance are obtained, and the insoluble substance is used for producing a refractory material; carrying out adsorption treatment on the leachate through cation exchange resin; and concentrating the obtained aqueous solution, then adding Na2CO3 to carry out lithium precipitation reaction, and finally carrying out liquid-solid separation to obtain the product Li2CO3. According to the invention, comprehensive utilization of lithium, aluminum and silicon elements in the clay type lithium ore can be realized; and tailings can be reduced, the production time is saved, and the production cost is reduced.
本发明公开了一种选择吸附法从黏土型锂矿中高效提取碳酸锂的方法。将黏土型锂矿破碎、细磨，得到粉状黏土型锂矿；将粉状黏土型锂矿高温焙烧，得到焙烧产物；焙烧产物加入稀酸溶液浸出、分离，得到浸出液和高硅矿渣，高硅矿渣作为水泥生产原料；浸出液中加入NaOH溶液调节其pH值、搅拌吸附、分离，得到沉淀和上清液；将沉淀焙烧，焙烧后产物进行水浸、固液分离，得到浸出液和不溶物，不溶物用于生产耐火材料；浸出液通过阳离子交换树脂吸附处理；所得水溶液进行浓缩，然后加入Na2CO3进行沉锂反应，最后进行液固分离，得到产品Li2CO3。通过本发明能够实现黏土型锂矿中锂、铝、硅元素的综合利用；并且能够减少尾矿产生，节约生产时间，降低生产成本。
Method for efficiently extracting lithium carbonate from clay type lithium ore by selective adsorption method
The invention discloses a method for efficiently extracting lithium carbonate from clay type lithium ore by a selective adsorption method. The clay type lithium ore is crushed and finely ground, and powdery clay type lithium ore is obtained; roasting the powdery clay type lithium ore at high temperature to obtain a roasted product; a dilute acid solution is added into the roasted product for leaching and separation, a leaching solution and high-silicon slag are obtained, and the high-silicon slag serves as a cement production raw material; a NaOH solution is added into the leachate to adjust the pH value of the leachate, stirring adsorption and separation are conducted, and precipitates and supernate are obtained; the precipitate is roasted, the roasted product is subjected to water leaching and solid-liquid separation, a leaching solution and an insoluble substance are obtained, and the insoluble substance is used for producing a refractory material; carrying out adsorption treatment on the leachate through cation exchange resin; and concentrating the obtained aqueous solution, then adding Na2CO3 to carry out lithium precipitation reaction, and finally carrying out liquid-solid separation to obtain the product Li2CO3. According to the invention, comprehensive utilization of lithium, aluminum and silicon elements in the clay type lithium ore can be realized; and tailings can be reduced, the production time is saved, and the production cost is reduced.
本发明公开了一种选择吸附法从黏土型锂矿中高效提取碳酸锂的方法。将黏土型锂矿破碎、细磨，得到粉状黏土型锂矿；将粉状黏土型锂矿高温焙烧，得到焙烧产物；焙烧产物加入稀酸溶液浸出、分离，得到浸出液和高硅矿渣，高硅矿渣作为水泥生产原料；浸出液中加入NaOH溶液调节其pH值、搅拌吸附、分离，得到沉淀和上清液；将沉淀焙烧，焙烧后产物进行水浸、固液分离，得到浸出液和不溶物，不溶物用于生产耐火材料；浸出液通过阳离子交换树脂吸附处理；所得水溶液进行浓缩，然后加入Na2CO3进行沉锂反应，最后进行液固分离，得到产品Li2CO3。通过本发明能够实现黏土型锂矿中锂、铝、硅元素的综合利用；并且能够减少尾矿产生，节约生产时间，降低生产成本。
Method for efficiently extracting lithium carbonate from clay type lithium ore by selective adsorption method
一种选择吸附法从黏土型锂矿中高效提取碳酸锂的方法
ZHAO ZHIQIANG (author) / CAO YU (author) / ZHANG HAIYANG (author) / CHEN XUE (author) / LIU DUO (author) / DONG XUZHOU (author) / QIN RUIYANG (author)
2024-12-27
Patent
Electronic Resource
Chinese
IPC:
C22B
PRODUCTION OR REFINING OF METALS
,
Gewinnen oder Feinen von Metallen
/
C01D
Verbindungen der Alkalimetalle, d.h. des Lithiums, Natriums, Kaliums, Rubidiums, Cäsiums oder Franciums
,
COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
/
C04B
Kalk
,
LIME
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