Desulfurization of High Sulfur Content Bauxite by Bacteria
The alumina production might not continue when the sulfur content of bauxite was too high. In order to bring down the sulfur content in bauxite, we studied on the bauxite desuifurization by bacteria screened from the acid mine drainage at mines of high sulfur content. The screened bacteria were domesticated by the high sulfur content bauxite. The experiments of bauxite desulfurization were carried out under the conditions of 5% pulp density, temperature of 30℃, rotate speed of 120rpm. Bacterial desulfurization for 30 days, the sulfur content of the bauxite was reduced from 5.73% to 1.55% and the desulfurization percent was 72.9%. The recovery percent of alumina was 94.3%. The study showed that it was feasible to bring down the sulfur content of bauxite by bioleaching and this technique might make full use of the low grade bauxite.
Bauxite Desulfurize Bacteria for bioleaching Alumina
Q. Huo J. K. Zhou H. X. Li S. H.Wang
Zhengzhou Research Institute of CHALCO, The faculty of Bio-Metallurgy, Zhengzhou, China
国际会议
XXIV International Mineral Processing Congress(第24届国际矿物加工大会)
北京
英文
2761-2764
2008-09-24(万方平台首次上网日期,不代表论文的发表时间)