Mine geological environment protection regulations

Mine Geological Environmental Protection Regulations (Order No. 44 of the Ministry of Land and Resources) Ministry of Land and Resources of the People's Republic of China No. 44 The Regulations on Mine Geological Environmental Protection has been reviewed and approved at the 4th Ministerial

Separation and purification of platinum group ore

Separating and purifying platinum group metal of the platinum group metal ore extraction and purification processes vary ingredients, the content varies. The platinum group metal concentrate or the anode mud containing the platinum group metal is dissolved in aqua regia, and palladium , platinum, a

Bacterial oxidation process of refractory gold ore

From the technical point of view, the biological extraction and dissolution of refractory gold ore is consistent in nature from the microbial chemistry. The former pays attention to the oxidation-extraction of gold particles, and is more suitable for ore-based ore. The latter focuses on the oxidati