论文部分内容阅读
广西大厂钖矿历年来已开采矿石近十万吨,抛弃的尾砂中含硫铁矿200多万吨、砷8万吨,由于硫精矿含砷3～5％(硫砷未能很好分离),一直未能充分利用。某研究室曾作分离试验,当把砷降为0.5％时成本高达近百元,这说明用一般选矿方法难以奏效。 笔者认为,采用建硫砷分离炉或改造现有部分硫酸炉,直接利用高砷硫精矿是完全可能的。广西化工研究所和化肥厂曾做过一些工业试验,生产出合格硫酸,砷也可回
Over the years, Guangxi Dachang 钖 ore has mined nearly 100,000 tons of ore, abandoned tailings containing more than 2 million tons of pyrite, 80,000 tons of arsenic, as a result of sulfur concentrate containing 3 to 5% arsenic Good separation), has not been fully utilized. A laboratory for the separation test, when the arsenic dropped to 0.5% when the cost of up to nearly 100 yuan, indicating that the general beneficiation method is difficult to work. The author believes that the use of sulfur-arsenic separation furnace or transform the existing part of the sulfuric acid furnace, the direct use of high arsenic sulfur concentrate is entirely possible. Guangxi Chemical Industry Institute and Chemical Fertilizer Factory has done some industrial tests to produce qualified sulfuric acid, arsenic can be back