It is proved that the process of cation reverse flotation is reliable to produce high purity iron concentrate with low silicon content.

Since 1978,Changsha Research Institute of Mining and Metallurgy had done various of deep and wide researches on this iron ore from laboratory tests to pilot tests,the pilot tests with the scale of dealing with 15 thousand tons of crude ore annually had been done by the flowsheet of magnetic roasting by rotary kiln-staged grinding-low intensity magnetic separation-cationic reverse flotation.

Removal of Cadmium from wastewater with plant-derived biosurfactant tea saponin by ion flotation;

Under normal temperature and pressure,a hydrometallurgical process is presented for extracting cobalt,manganese,copper and nickel from earthy cobalt by reduced leaching with SO2-ion flotation-P507 solvent extraction.

The single bubble adsorption model was used to treat the kinetics of cupric ion flotation, and a new method was suggested that the mass transfer coefficients of cupric ion flotation k2 could be caculated by the dynamic surface tension measurement.

An ion floatation—spectrophotometricy method for the determination of trace amounts of iron in industrial recycling water was found.