China's tin mine tailings have large reserves, complex target components and associated components, and it is difficult to recycle them effectively by conventional mineral processing methods. In the context of increasingly depleted mineral resources, it is necessary to ensure the sustainable development of China's tin industry. on China tin mine tailings recovery of valuable metals were analyzed objective reality, study, and take appropriate countermeasures. for complex relationship Yunnan tin company disseminated iron and tin tailings characteristics studied chloride -Reduction roasting method to recover iron and tin in tailings, and determine the optimum process conditions. The test results show that the calcination temperature is 1200 ° C, the calcination time is 60 min, the mass fraction of reducing agent, chlorinating agent and catalyst are respectively For 14%, 6%, 5% conditions, 57% iron concentrate and 20% tin fine powder can be obtained.
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Study on New Technology of Recovering Tin-iron from Yunxi Tailings