炼渣

通过对比各矿冶遗址的铜矿石、炼渣和铜锭的稀土配分曲线，发现炼渣的稀土配分曲线为判断古代所使用的冶炼技术及铜矿石的输出路线提供了可能。

Nevertheless , this research finds that REE distribution pattern of the slag is possible to be used to ascertain smelting technology of the copper ores adopted by the ancient smelters and export route of the ancient copper ores .

结果表明，克炼减渣中二甲苯不溶性钙占1.6%，水溶性钙占61.4%，油溶性钙占37.0%；

The results show that the content of calcium in dimethylbenzene insoluble , water soluble and oil soluble fractions are 1.6 % , 61.4 % and 37.0 % respectively . Most of organic calcium compounds are adsorbed in alumina firmly and difficult to wash off .

介绍我厂从脆硫铅锑矿炼银转渣和粗铅熔析铜渣中回收铜、铋，产出合格的精铋和精铜的生产工艺流程。

The process of recovery Cu and Bi from silver converting slag and copper slag of jamcsonite are introduced in detail based on our plant practice .

选择传统火法工艺富集铋，湿法粗炼氧化铋渣，最后再进行粗铋的火法精炼。

The suitable technique is choosing the traditional fire technology to collect bismuth richly , smelting slag bismuth oxide in wet method , and refining crude bismuth afterward by fire method .

近年来由于资源回收再利用，可持续发展的趋势，一些炼磺烧渣也被用来作为炼铁的原料，对烧制完的硫磺排出的矿渣进行尾矿综合利用回收铁已成为当前的一种研究方向。

In recent years , due to recycling resource and sustainable development trend , some sulfur slag is also used as the materials of smelting iron , so it is currently a trend to utilize trailing of roasting pyrite comprehensively .