1. Ammonia Leaching Study on Refractory Oxidised Copper Ores
- Author
-
Ying Bo Mao, Tie Min Zhang, and Zhi Cong Wei
- Subjects
Pressure range ,Ammonia ,chemistry.chemical_compound ,Temperature and pressure ,Chemistry ,Fineness ,Metallurgy ,chemistry.chemical_element ,Ammonium fluoride ,General Medicine ,Leaching (metallurgy) ,Leaching rate ,Copper - Abstract
Ammonia leaching research is carried out on a certain oxidised copper ores. The effects of oxidized copper ores which came from Yunnan Province were studied in laboratory in order to find out the optimum leaching conditions under normal temperature and pressure. The ores belonged to typical high binding rate minerals. The optimum conditions obtained were as follows: granding fineness about 90% -0.074mm, ammonia concentration 2 mol/l, ammonium fluoride concentration 1.5mol/l , leaching time 2h, and liquid-solid ratio 3:1.The leaching rate of this ore could reach 86%.
- Published
- 2014