Strontium carbonate production line

Strontium carbonate production line

The source of strontium in strontium carbonate is mainly azulite ore (SrSO4), with a small amount of strontium ore (SrCO3) and associated ore (a mixture of strontium sulfate and strontium carbonate). It is a very important inorganic industrial product, will be mainly used in the electronics industry as a magnetic material, because it has a good shielding effect on rays, so it can be used as a color TV picture tube surface coating material. In addition, it is also widely used in ceramics, medicine and chemical industry. Now, with the rapid development of the electronics industry at home and abroad, the demand for high-purity strontium carbonate products in the industry has also increased correspondingly.

Raw materials used in production: lapis lazuli

Calcination temperature: 1100-1200℃

Main equipment: rotary kiln, feeder, crusher, ball mill

Outstanding advantage

1, experimental analysis: the company's pilot test line can carry out a variety of raw material analysis, formula design, sample preparation, roasting, pilot test, pilot test;

2, the preparation of high purity strontium carbonate, high quality, stable quality;

3, simple process, easy operation, low production cost, no environmental pollution.

Process flow

Lapis lazulis and pulverized coal are crushed and used as raw materials through 20 purpose, the ratio of ore to coal is 1:0.6 ~ 1:0.7, and the reduction roasting at the temperature of 1100 ~ 1200℃, after 0.5 ~ 1.0h, the roasting is leached twice, once washed, the leaching temperature is 90℃, each time for 3h, the total leaching rate can reach 82%, and the leaching solution is filtered. Strontium carbonate is further recovered after hydrochloric acid leaching of the filter residue, and the filtrate is added with mirabarite solution to remove barium, and then ammonium bicarbonate or sodium carbonate solution is added for reaction to produce strontium carbonate precipitation (or directly carbonized with carbon dioxide), and then separated, dried and pulverized by ball milling to obtain strontium carbonate.