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Joseite A was taken from the Dadongchang Pb-Zn deposit in Yunuan Province.

硫碲铋矿A南省大硐厂铅锌矿床,与自然铋、辉铋铅矿井生。

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Both volumetric method and gravimetric method can be used for determination of Zn in thiofide ZDBC.The gravimetric method is easy to operate but it spents more analysis time.

容量法和重量法均可用测定橡胶硫化促进剂丁基硫代氨基甲酸锌(ZDBC)中的锌含量。

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This article briefly introduces the study that pure alkali - melting process treats the vacuum dezincing furnace slag and comprehensively recovers Ge, In, Ag, Pb and Zn from it.

简要介绍了碱熔法处理真空炉渣,综合回收锗、铟、银、铅、锌有的试验研究。

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Methods Certain amounts of and Zn were put into the wastewater to produce hydrogen (H2) and the H2 reacted with S2-to form H2S, and sulfuret was separated from the wastewater.

方法在废水样中加入一定量的浓硫酸和锌粒,生成H2,利用H2和S2-结合生成H2S,以分离硫化物。

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