REACTIONS OF PYRITE IN CATALYTICAL OXIDATION ACID LEACHING SYSTEM
来源期刊：中国有色金属学报(英文版)1995年第2期
论文作者：Xia Guangxiang Tu Taozhi Yang Hanlin Shi Wei
文章页码：43 - 48
Key words：catalytic oxidation ;acidic leaching ;pyrite oxidation pretreatment
Abstract: In H2SO4-HNO3-H2O-O2 system, the effects of solution composition, opreration factors and several additives on the reaction rate of pure pyrite have been studied in detail under the pressure condition. The results indicated that after leaching, the product percentage of oxidation residue is about 5 wt. -% and its composition mainly is α-S0 and H3Ofe3(SO4)2(OH)6. In the presence of HNO3, the reaction rate increased by about 10 times.
