Lithium carbonate has a very wide range of applications in the production of secondary lithium salts and metal lithium products, and is the most critical product in the lithium industry. In the current actual production process of lithium carbonate, its main production raw materials come from salt lake brine and ore extracts. At present, in the production process of lithium carbonate in my country, the solid ore extraction method is mainly used. At present, the HLM series lithium carbonate vertical roller mill production line produced by HCMilling(Guilin Hongcheng) has been applied in lithium carbonate extraction projects from lithium ore in Sichuan and Jiangxi in China. Meanwhile，HCMilling(Guilin Hongcheng) will introduce the process of lithium carbonate grinding mill production line to you:

The production process of lithium carbonate is divided into several important process steps, and the completion quality of each link has a very direct impact on the product quality. Only by ensuring the integrity of the process can the production quality of lithium carbonate be guaranteed. Ore extraction process. The ore extraction method is to extract lithium carbonate components in spodumene, lepidolite and other ores through chemical processes. The main processes for extracting lithium from ore are lime sintering, chlorination roasting, sulfate, sulfuric acid, and soda ash cooking. Among these processes, the sulfuric acid method is the most mature one. Due to its simple process flow, high lithium recovery rate, and years of technological transformation and equipment renewal, it has become the mainstream lithium extraction process from spodumene in the world. The process flow of the sulfuric acid method lithium carbonate vertical roller mill production line is as follows: ① The spodumene or lepidolite ore is transformed and roasted, and after cooling, it is transported to the vertical roller mill for fine grinding to achieve a certain concentrate particle. ②The ground powder is mixed with concentrated sulfuric acid with a certain acid-to-ore ratio for acidification roasting. ③ The acidified clinker is transported to the sizing tank. ④ A certain amount of calcium carbonate is added to the prepared slurry for neutral leaching. ⑤ Filter the leaching slurry, collect the leaching liquid, and discharge the slag. ⑥ Separate and wash the sludge. ⑦ Add a certain proportion of lime milk and soda ash to the washed lithium sulfate leaching solution, so that the magnesium and calcium salts in it can be fully precipitated. ⑧ Filtration. By adopting a certain filtration process, the calcium hydroxide and magnesium hydroxide substances are fully separated. ⑨ Evaporate and concentrate the filtrate more fully. By adding a certain amount of lye to the solution, the lithium carbonate in it is fully precipitated. ⑩ A certain amount of water is added to it, and the lithium carbonate is fully separated and washed to effectively remove the mother liquor. After further drying, lithium carbonate is prepared.

These process links play a very important role in the preparation of lithium carbonate, and none of them is allowed to be missing, otherwise it will have a great impact on the preparation quality of lithium carbonate. The lithium carbonate vertical roller mill production line produced by HCMilling(Guilin Hongcheng) is a high-tech equipment, which can deeply process lithium carbonate raw materials, promote the application and development of products in the middle and downstream fields, and bring good production benefits to enterprises.

The HLM lithium carbonate vertical roller mill of HCMilling(Guilin Hongcheng) integrates crushing, drying, grinding and conveying. The process is simple, the system equipment is small, the structure layout is compact, and the floor space is small, which is only 50% of the ball mill. It can be arranged in the open air. , The construction cost is low, which directly reduces the investment cost of the enterprise. It is a truly efficient milling production line equipment. If you want to know more about the equipment information of lithium carbonate grinding mill production line, please contact mkt@hcmilling.com or call at +86-773-3568321, HCM will tailor for you the most suitable grinding mill program based on your needs, more details please check https://www.hc-mill.com/.