The strontium-bearing deposits are mainly strontium iron and pyrochlore. The strontium iron ore is called coltan, and it is called strontium iron ore.The coltan or pyrochlore can be collected by a cationic collector, and an anionic collector can also be used. Flotation with a complex collector (such as sodium hydroxy citrate) is better.

    Using oleic acid as a collector, the barium is best at pH 6-8. In the acidic medium, both coltan and coltan are pressed, while quartz, feldspar and dolomite are in any The floatation is not good at pH. Therefore, when pH=6~8, using oleic acid as a collector, it is very simple to separate the bismuth ingot from the gangue such as quartz.

    After treating the antimony ore with 10% acid (sulfuric acid), it becomes simple to float. As the amount of acid increases, the floatability of the antimony ore increases, and the effect of sulfuric acid is better than that of the use. With a 1% treatment, the degree of activation is similar to that of sulfuric acid. When oleic acid is used as a collector, the concentration is 10-20 mg/L, and the ingot ore and part of the gangue can be pressed. When a cation collector is used, some minerals such as strontium ore are activated, but with the addition of the amount, the recovery rate of bismuth ore is decreased. When lanthanum is used to capture antimony ore, a small amount of sodium can cause all mineral deposits to be smashed.