1, Required by environment protection and lead resource, hydrometallurgy of lead has become the development tendency in the field of lead smelting.

2, Because of using zinc hydrometallurgy process of jarosite process, the leaching rate of zinc may reach 97% and this line can produce high quality zinc continuously and steadily.

3, Slurry electrolysis is a new technology of hydrometallurgy developed in recent years.

4, Application of solvent extraction process in tungsten hydrometallurgy is summarized.

5, During the purification Co removal of Zinc hydrometallurgy by antimonate, the particle size of zinc powder has a great relation to unit consumption.

6, Adsorption equilibrium on quaternary ammonium resin in uranyl sulphate solution, which is similar to composition used in uranium hydrometallurgy, was studied by chemical equivalent method.

7, A model was developed for the kinetics of the liquid-solid phase reactions in a intermittent reactor, such as the leaching process of stibnite in the antimony hydrometallurgy.

8, Biological metallurgy is new technology which combines bacillus's affection and hydrometallurgy.

9, A systematic process of treating with Co - Ni residue from zinc hydrometallurgy has been developed.

10, A new technology to produce bismuthate from bismoclite by direct hydrometallurgy was studied.

11, According to control requirements of uranium leaching solution process,(http:///hydrometallurgy.html) the paper discusses the completion of automation for uranium hydrometallurgy process by using SCADA and PLC.

12, Study the action of Sn in the production of APT by ion - exchange of hydrometallurgy.

13, The method dealing with the purifying residue of zinc hydrometallurgy is mainly introduced.

14, Puzzledom in developing mineral resources, advantages and application status of microbial metallurgy are elaborated. Research status and direction of biotechnology in hydrometallurgy is discussed.

15, Recovery of cobalt from Co - Ni residue in zinc hydrometallurgy has been studied.

16, It is pointed that bacterium property and chemical fundament of hydrometallurgy should be considered comprehensively in bacterial oxidation process.