Recovery of tailings

The value of tailings

For example, the tin polymetallic mine in Nandan, Guangxi, China has 61 tailing ponds, and in the total 25.22 million tons of tailings, contains a large amount of non-ferrous metals such as tin, antimony, lead, zinc, silver, gold, indium, cadmium, and non-metallic ores such as arsenic, sulfur, etc. The grades are above the national industrial grade index, and some have reached large or extra-large size, and the scale is initially estimated to have a resource of 3 billion RMB. If these metals are recovered with the help of new development of mineral processing technology, it is no less than establishing a new mine. The tailings of the Panzhihua iron ore mine in Sichuan, China, contain more than a dozen beneficial components such as copper, nickel, titanium and vanadium, equivalent to a large non-ferrous metal mine. And non-metallic mines such as coal mine gangue and other surrounding rocks are also useful materials, and are already mined to the ground and piled up to wealth.

Tailings development and utilization measures

To further improve the development and utilization of tailings resources, the following measures are recommended:

First, we should develop and implement relevant policies to support enterprises to carry out technical research and technological transformation; at the same time, implement preferential policies such as reducing and waiving resource taxes and fees to guide and encourage social and corporate funds to invest in tailings and other resource utilization.

Second, to strengthen the comprehensive utilization of tailings technology innovation, research and development of advanced technology, advanced equipment, advanced technology, accelerate the transformation of research results.

Third, the use of central financial funds, focusing on supporting large enterprises, large mining tailings and "slag" in the use of resources to play a leading role in demonstration.

Fourth, to strengthen the development of access management, develop and improve the standards of access and supervision of mining development enterprises, promote the restructuring of enterprises, stronger and larger mining enterprises.

Fifth, to strengthen the development and utilization of tailings in the safety management, to prevent production safety accidents.

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