Taking copper sulphide mineral as study objects, the studies of chalcopyrite heating and pressure pre-oxidation leaching process were conducted in acid system adding chloride.
以硫化铜矿物为研究对象，在添加氯盐的酸性体系中，开展了黄铜矿加温、加压预氧化浸出过程研究。
The paper studies technological process of the high content calcium lactic acid beverage, It is based on yoghurt with live cells, adding calcium and vitamin D ect for cnhancing its functions.
本文主要研究探讨了以酸奶为基料的高钙乳酸菌饮料的配方设计、生产工艺。
The process is acid adding pre-leaching at normal pressure, pressurized oxygen leaching to leach out base metals and filtering separation to obtain solid noble metal concentrate.
其特征在于 采用常压加酸预浸、再加压氧浸出，将羰化合成残渣中的贱金属浸出，过滤分 离得到固体贵金属精矿。
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