Global commodity prices continue to rise, increased the minerals demand enterprise’s production costs, and increased resource safety pressure at the same time. Mineral resources supply tense situation in the whole world, the world’s advanced countries, found that the mineral resources in the processing and utilization of residue left after, tailings, contains the secondary utilization of business opportunities. Good and is mining giants in our country, the development and utilization of long-term accumulation of a large number of tailings, as well as “waste”, and can effectively reduce the pressure on resources and the environment.
Tailings is unleashed a certain technical and economic condition of mining enterprises of the “waste”, but they are also the potential secondary resources, when the technical and economic conditions allow, can be effective development again. According to statistics, 2000 years ago, the amount of tailings mining output of 5.026 billion tons, among them, the capacity of 2.614 billion tons of iron ore tailings, mainly non-ferrous metal tailing quantity is 2.109 billion tons, 272 million tons of gold tailings is, the other 031 million tons. In 2000, China has reached 600 million tons, mine discharge of tailings in according to the calculation, the existing total tailings of about 8 billion tons. Obviously, the tailings is misplaced resources. According to the China federation of mining tailings comprehensive office estimates that tailings potential value of about 130 billion yuan in China, its development and utilization will be brought by the bottom line of economic benefits, has a great temptation.
Comprehensive utilization of tailings grade: ore after seeding, after processing, its main useful components integrated rich concentrate, tailings and other residue said. Mainly useful components content in tailings as tailings grade. It is to choose the economic and reasonable processing scheme and evaluation of ore optional sex is important parameters.