Gongyi Xin Hua Machinery Mining knowledge editors: Gold extraction of gold. Gold content in the ore is very low, in order to extract gold ore crushing and grinding needs and beneficiation methods using pre-enrichment or separation of gold from ore manipulation. Gold mineral is used in more re-election and flotation, gravity separation occupies a very important position in placer gold production, flotation is widely use rock gold mine beneficiation methods, currently about 80% of the country rock gold mine Using this method with gold, mineral processing technology and equipment have been greatly improved. Western Mining xitiesan Branch (related information) after the founding of New China in 1953, the then deputy director of the Ministry of Geology and Mineral Resources Division Tong led the city to go to Qinghai mineral reconnaissance geological work, to xitiesan geological survey found a large a lead-zinc body electric slag machine operation, and roughly measure the ore body length, thickness, estimated reserves of electric slag machine parts, that is the vision of a very large lead and zinc. Back to Xining, he immediately telegraphed news reports that the Ministry of Geology and Siguang Qinghai Provincial Minister and other leaders to "find a xitiesan big lead, preliminary estimates reserves of 1,000,000 t" (Tong Town, lead and zinc XITIESHAN found that "colored Past" electric slag machine manufacturers, 1992, №2). Based on this discovery, from 1955 to 1958 for mining exploration, has made the Northwest Geological Bureau of six hundred thirty-two teams, six hundred thirty-nine team (in 1957 renamed xitiesan geological team), Ministry of Geology of Northwest Geophysical Battalion ○ four teams, and so do a fairly effective geological exploration work, submit the main geological results: 1957 "Xitieshan lead-zinc deposits geological report," 1958 "Qaidam Xitieshan final lead-zinc Geological Survey Report", proven lead and zinc reserves of 2,891,600 t, became the country's largest lead-zinc deposits. Electric slag machine prices | Xinhua machinery (certified) | Yinchuan Cinder machine provided by Gongyi City Xinhua Machinery Factory. Gongyi City Xinhua Machinery Factory (www.gyxinhua.com) is a leader in Zhengzhou, handling equipment, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Xinhua leader in mechanical staff warmly welcome all inquiries negotiations to create a better future, Xinhua machinery.