Desulfurization of High Sulfur Content Bauxite by Bacteria

摘要：

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.

关键词： Bauxite Desulfurize Bacteria for bioleaching Alumina

作者: Q. Huo J. K. Zhou H. X. Li S. H.Wang

作者单位: Zhengzhou Research Institute of CHALCO, The faculty of Bio-Metallurgy, Zhengzhou, China

会议类型: 国际会议

会议名称: XXIV International Mineral Processing Congress(第24届国际矿物加工大会)

会议地点: 北京

会议语种:英文

页码: 2761-2764

在线出版日期: 2008-09-24（万方平台首次上网日期，不代表论文的发表时间）