摘要
ROLEOFNaClINOREFORMINGOFSANDSHALETYPECOPPERDEPOSITS①TanKaixuanandDaiTagenColegeofResource,EnvironmentandCivilEnginering,Cen...
Oreforming fluids of sandshale copper deposits in MesoCenozoic Diwa basins in South China are hot brine solutions composed mainly of NaCl, an important mineralizer. Studies on chemical kinetics and thermodynamics showed that NaCl plays an important part in the oreforming process of sandshale copper deposits: (1) NaCl can obviously increase the dissolution rate of copper minerals in source bed, and catalyse the dissolution and migration of copper; (2) Cu and Cl- can form stable cuprous chloride complexes to migrate, which are mainly CuCl0, CuCl-2 and CuCl2-3; (3) the increase of NaCl concentration in solutions can enlarge the solubility of copper by orders of magnitude.
出处
《中国有色金属学会会刊:英文版》
CSCD
1998年第2期154-159,共6页
Transactions of Nonferrous Metals Society of China