Bacterial adsorption research on the surface of chalcopyrite
The bacterial adsorption and bioleaching on the surface of chalcopyrite were studied. The ninhydrin colorimetry is used to measure the total count on the surface of chalcopyrite under different grain sizes of ore, pulp concentration and initial pH. The results show that bacterial adsorption declines after an increase on the surface of chalcopyrite. The smaller the grain size and the higher the bacterial adsorption rate, the higher the copper leaching rate; the less the pulp concentration, and the higher the bacterial adsorption rate of unit pulp concentration, the higher the copper leaching rate. The bacteria have preferable adsorption when initial pH is 1.22.0, and the maximal leaching efficiency reaches when initial pH is 1. 2. The bacterial leaching is governed by direct and indirect action.
bacteria chalcopyrite leaching adsorption law surface
Haodan Pan Hongying Yang Linlin Tong
School of Materials Science and Metallurgy, Northeastern University No. 11, Lane 3, Wenhua Road, Heping district, Shenyang, 110819, China
国际会议
The 19th International Biohydrometallurgy Symposium(第19届国际生物湿法冶金大会 IBS2011)
长沙
英文
916-920
2011-09-18（万方平台首次上网日期，不代表论文的发表时间）