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化工进展  2015 

多金属复杂硫化铜矿中有价金属的分离研究现状与进展

DOI: 10.16085/j.issn.1000-6613.2015.01.045, PP. 252-257

Keywords: 复杂铜铅硫化矿,焙烧,浸取,分离,回收

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Abstract:

综述了复杂铜铅硫化矿中铜锌及铅等有价金属的分离回收技术。通过阐述最近的几种处理复杂硫化铜矿的方法,分析和比较了各处理方法的特点,展望了研究趋势。指出氧化焙烧预处理-浸出法和硫酸化焙烧-水浸法尽管工艺流程短且简单,但焙烧过程产生的SO2气体对环境污染严重;硫化焙烧-酸浸法能有效降低SO2气体的排放量,但其焙烧条件苛刻,难以实现工业化;高价铁盐浸出法存在高价铁盐损耗大、再生难的问题;使用氯盐体系直接浸出时还存在Cl-对设备腐蚀严重等问题;而氧压浸出和微生物浸出虽然也存在一些不足,但在处理复杂硫化铜矿过程中无有害废气产生,环境友好并且硫以单质硫的形式回收,能有效解决硫酸储存难问题,相信其在今后处理复杂多金属硫化矿中具有广阔的发展前景。

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