At present, the production of LITHIUM carbonate is mainly based on lepidolite and spodumene, the production of lepidolite is mainly based on the sulfate method, and the production of spodumene is mainly based on the sulfuric ACID method. Today, we will exchange the production process of the sulfuric acid method PTMS LITHIUM COBALT ACID MATERIAL MAGNETIC:
Sulfuric acid process is a relatively mature process to produce lithium carbonate with spodumene as raw material.
The basic principle of PTMS LITHIUM COBALT ACID MATERIAL MAGNETIC magnetic process is that sulfuric acid and β-spodumene undergo displacement reaction at 250~300 ℃ to produce Li2SO4. The reaction equation is as follows:
β-Li2OAl2O34SiO2 + H2SO4 -----Li2SO4 + H2O Al2O34SiO2.
This reaction can only occur in the relatively loose structure of β-spodumene. The spodumene concentrate containing 5.5% ~7.5% Li2O obtained from mineral processing is first roasted at high temperature in a rotary kiln at 1050-1100 ℃, so that the ore density is reduced from 3.15g/cm3 to 2.4g/cm3 to become β-spodumene.
After cooling, the ball is ground to about 100 mesh, mixed with enough sulfuric acid (93% ~98%), and sent to 250℃ acidizing rotary furnace for sulfuric acid roasting. After cooling, water leaching, adding limestone to control the pH of 5, to obtain about 10% of Li2SO4 crude LITHIUM liquid, with lime to adjust the pH to 11, adding sodium carbonate, sulfuric ACID method PTMS LITHIUM COBALT ACID MATERIAL MAGNETIC removal of calcium, magnesium, iron, aluminum and other impurities.
Contact: DELLA
Mob: +86-13929907491
