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保加利亚在对很多矿石进行综合处理方面取得某些成就的同时,还查明了用下述方法进一步回收有价组分的可能性:对在粘土矿石和湿矿石洗涤过程中所得矿浆的矿泥部分用药剂单独处理并进行浮选(选厂即将采用这一工艺);按和等选厂的方法对矿石进行阶段磨矿和阶段浮选;使用选择性更好的捕收剂——黄药与起泡剂T—66及甲基异丁基甲醇等的混合物;从含硫很低的斑岩铜矿中制取黄铁矿精矿以生产硫酸。不仅从含金矿石中回收了贵金属,而且还实现了从有色金属矿石选矿过程中附带回收贵金属。在
While Bulgaria has made some achievements in the integrated treatment of many ores, it has also identified the possibility of further recovering the valuable components by: (a) fractionating the slime fraction of the slurry obtained during the washing of clay ores and wet ores Using agents alone and flotation (the plant is about to adopt this process); by ore dressing and phase dressing and phase flotation; using more selective collector - xanthate and A mixture of foaming agent T-66 and methyl isobutyl carbinol and the like; and pyrite concentrate is produced from porphyry copper ore with low sulfur content to produce sulfuric acid. Not only precious metals are recovered from gold-bearing ores, but also precious metals are recovered incidentally from beneficiation of non-ferrous ores. in