Preparation of Iron Oxide Red by Acid Leaching Tailings
The utilization of acid leaching tailings was studied. It is obvious that the Fe in acid leaching tailings can be leached into solutions as Fe2+. In this paper, the influence of conditions, including the concentration of ferrous sulfate, pH, temperature and velocity of air flow was investigated. The optimum conditions for preparing seed crystal are as follows: the concentration of ferrous sulfate is 20 g/L; pH is 9.5-10; reaction temperature is 10～20℃; velocity of air flow is 0.4m3/h. The optimum conditions for preparing iron oxide red are as follows: the concentration of ferrous sulfate is 5 g/L;reaction temperature is 80～85℃; velocity of air flow is 0.13m3/h. At last, the product of iron oxide red could be prepared by ammonia method.
Iron oxide red Preparation Acid leaching tailings Ammonia process
F.L. Meng G.L. Gao D.X. Li Y.H. Wang
College of Environmental Science and Engineering, Donghua University, Shanghai, 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
3223-3227
2008-09-24（万方平台首次上网日期，不代表论文的发表时间）