| abstract |
The invention discloses a method for synergistically recovering valuable metals through biological desulfurization and upgrading of pyrite slag, including domestication of high-efficiency ore leaching bacteria, selective biological leaching, iron removal in leaching solution, and recovery of metal copper and zinc. The method utilizes a microbial method to remove the sulfur content in the pyrite slag to improve the grade of the iron concentrate, and synergistically recovers valuable metals such as copper and zinc in the slag. Through microbial leaching treatment of pyrite slag, various metals such as copper and zinc can be enriched and recovered while reducing waste solids in a large amount. The invention achieves the goals of reducing consumption, increasing production and efficiency, reducing waste and solid stacking and preventing environmental pollution, and provides technical support for the comprehensive utilization of added value of pyrite slag. |