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七十年代末印度发现的最富的贱金属硫化矿矿床具有重要的意义。根据1982年完成的18095米钻探结果,铅锌矿石的储量估计为6100万吨。矿石含锌13.4%,铅1.93%。矿石矿化最富的是闪锌矿,其次是黄铁矿、磁黄铁矿、方铅矿、毒砂和黄铜矿。矿化围岩是石墨-硅线石片岩或片麻岩。1980—1983年间,曾全力以赴地进行旨在能生产出适于冶炼厂处理的铅锌精矿的选矿流程的研究。本文将介绍印度斯坦锌有限公司研究与发展中心以及某些印度的和国际的实验室为发展这一流程所作的贡献。考虑到综合试验厂已经用硫化物矿化在独特的围岩中的兰布尔阿古查复合矿石进行过4000吨的验证试验,对于生产铅-锌精矿来说,采用优先浮选流程是合适的。
The richest base metal sulfide ore deposits found in India in the late 1970s are of great importance. According to the results of drilling of 18,095 meters completed in 1982, the reserves of lead-zinc ore are estimated at 61 million tons. Ore contains 13.4% zinc and 1.93% lead. The mineral ore is the richest sphalerite, followed by pyrite, pyrrhotite, galena, arsenopyrite and chalcopyrite. Mineralized rock is graphite - sillimanite or gneiss. Between 1980 and 1983, a full-fledged study aimed at producing beneficiation processes suitable for lead-zinc concentrates processed in smelters was conducted. This article describes the contribution made by Hindustan Zinc Corporation's Center for Research and Development and some Indian and international laboratories to developing this process. Considering that the Pilot Plant has conducted a 4,000-tonne validation test of the sulphate mineralization of Ramboulla Aguhara in a unique surrounding rock, it is appropriate to use a preferential flotation process for the production of lead-zinc concentrates .