矿产保护与利用Issue(2)：86-89,94,5.DOI:10.13779/j.cnki.issn1001-0076.2018.02.016
新型活化剂在高硫铝土矿浮选脱硫中的应用研究
Application of a New Activator in Desulfurization of High-sulfur Bauxiteby Flotation
杨林 1梁溢强 2简胜1
作者信息
- 1. 昆明冶金研究院,云南 昆明650031
- 2. 云南省选冶重点实验室,云南 昆明653030
- 折叠
摘要
Abstract
The high-sulfur bauxite in Wenshan of Yunnan is sedimentary bauxite and its high ratio of Al2O3to SiO2(A/S) can meet the requirements of alumina production by Bayer process. The high sulfur content in ores of 1% to 18%,however,is unfavorable as sulfur will cause pipe scale, increase of alkaline consumption,slowing down of seed precipitation and sacrifice of alumina quali-ty. Consequently,desulfurization is necessary for the utilization of this kind of bauxite. The content of sulfur,Al2O3and SiO2in the sample for the tests is 6.8%,49.39% and 7.87%,respectively, and the A/S is 6.27. Desulfurization of high-sulfur bauxite by flotation was carried out by using a new activator and combined collectors. Acid-free activation and intensive pyrite recovery were a-chieved. The technical indicators of the desulfurization by flotation are satisfying. The content of sulfur,Al2O3and SiO2inalumina concentrate is 0.43%,56.65% and 8.56%,respectively. The recovery of Al2O3is 92.71% and the A/S isincreased slightly to 6.62. The sulfur content and re-covery in sulfur concentrate is 34.06% and 94.88% respectively. This study serves as a reference for the efficient utilization of this kind of high-sulfur bauxite.关键词
新型活化剂/高硫铝土矿/浮选/脱硫Key words
new activator/high-sulfur bauxite/flotation/desulfurization分类
矿业与冶金引用本文复制引用
杨林,梁溢强,简胜..新型活化剂在高硫铝土矿浮选脱硫中的应用研究[J].矿产保护与利用,2018,(2):86-89,94,5.
