最近在罗干纳(Rhokana)选矿厂使用了改进的新方法,使钴精矿得到大幅度增长,此方法被称为“在再磨回路中加入氰化物法”,于5月份即用于处理铜和钴的精矿,但由于遇到了某些小的故障,故至6月份才显出其优越性。自1月至4月,选矿厂平均每月生产2600吨钴精矿,其中平均含钴100吨,而在7月生产了4950吨钴精矿,含钴222吨,即分别增加了2350及122吨。 Recently, a new and improved method was used at the Rhokana concentrator to make a significant increase in the cobalt concentrate, a process known as “the addition of cyanide to the regrinding circuit,” which in May was used to treat copper And cobalt concentrate, but did not show its superiority until June due to some minor failures. From January to April, the concentrator produced an average of 2,600 tons of cobalt concentrate per month, with an average of 100 tons of cobalt. In July, 4950 tons of cobalt concentrate and 222 tons of cobalt were produced, an increase of 2350 and 122 respectively Ton.