SODA DECOMPOSITION OF LOW-GRADE TUNGSTEN ORE THROUGH MECHANICAL ACTIVATION
来源期刊：中南大学学报(英文版)1996年第2期
论文作者：Zhao Zhongwei Li Honggui Liu Maosheng Sun Peimei Li Yunjiao
文章页码：78 - 81
Key words：tungsten; low-grade ore; leaching; mechanical activation
Abstract: Leaching of low-grade refractory tungsten ore was carried out through mechanical activation. The effect of temperature, amount of Na2CO3, addition of NaOH, ratio of liquid to solid and leaching time on the recovery of WO3 was studied. The WO3 recovery upto 96%~99% has been achieved when the tungsten ore was digested by soda not more than three times stiochiometric amount at 185~195℃ for 1.0~2.0 h. The WO3recovery can increase 10%~ 15% compared to that of conventional soda autoclave process.
