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Tailings are usable resources that have been misplaced, and China is a mining country. Developing and utilizing the large amount of tailings accumulated over a long period of time can not only turn waste into treasure, but also effectively alleviate resource and environmental pressures. There is data indicating that the total amount of tailings in China is about 8 billion tons, with a potential value of about 130 billion yuan. The development and utilization of tailings will bring about economic benefits of tens of thousands of yuan, which is extremely attractive. The comprehensive utilization of tailings to turn "waste" into treasure is both a trend and a "money" landscape. Some have carried out dam surface greening to prevent wind and sand, some have used tailings sand for underground filling, some have crushed and processed waste rocks into stones for paving, and processed tailings into bricks for building materials. These various methods have paved the way for turning tailings into treasure and comprehensive utilization.

Tailings reselection: For valuable low-grade ores in tailings, the tailings reselection process mainly starts from the perspective of protecting the environment and fully utilizing resources. Tailings with reselection value are reselected, and reasonable tailings reselection treatment processes are designed based on the different properties of the tailings to fully tap into their value and reduce tailings emissions. Mainly recover gold, silver, copper, iron, tungsten, molybdenum, lead, zinc, tin, fluorite, potassium feldspar, and quartz from tailings.