Biometallurgy is a technology that extracts useful metal elements from ores using the special metabolic action of microorganisms. It has the characteristics of high raw material utilization, low energy consumption, and environmental friendliness. It is the trend of research and development in the metallurgical industry.

The biometallurgy joint laboratory jointly established by Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences and Hebei Hengji Manganese Technology Co., Ltd. has conducted in-depth research on the biometallurgy process of low-grade manganese ore in China. Under the leadership of the research team leader Huang Zhiyong and the strong support of leaders at all levels, the joint laboratory is in response to the shortage of resources and huge demand in China's manganese industry, and the lack of high-grade manganese ore resources, and the fact that a large number of low-grade manganese ores cannot be fully utilized Situation, through microbiology and molecular biology techniques, a mixture of iron and sulfur metabolizing microorganisms, such as Alicyclobacillus sp nov. Strain BM, Ferritrophicum radicicola strain CCJ, Acidithiobacillus thiooxidans strain RH18, A. caldus strain RH10, Thiomanas sp. Consortium may5, etc., was constructed Microbial ore leaching flora utilizes the synergistic effect of microorganisms, at normal temperature and pressure, coupled with pyrite to realize the reduction and leaching of manganese in soft manganese ore, effectively increasing the speed of biological reaction, changing the previous biometallurgical reaction The disadvantage of slow speed.

In addition, researchers from Tianjin Institute of Technology and Engineering, together with the engineering and technical personnel of Hebei Hengji Manganese Co., Ltd., have developed a complete set of manganese sulfate production processes suitable for biological manganese leaching technology, from ore pretreatment to product purification and recovery. The company has established a demonstration project and passed the appraisal of scientific and technological achievements of the Science and Technology Department of Hebei Province in October 2011, which has reached the domestic leading level and filled the gap in the industrialization of low-grade pyrolusite biological leaching technology in China.

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