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carbito (DBC) organic phase by sodium sulfite was investigated in a Lewis cell. After the stirring speed reached 400 r·min-1, the reaction of gold stripping conformed with the pseudo-first-order reaction. The stripping rate of gold was in direct proportion to interfacial area, concentration of sodium sulfite and reaction temperature. The experimental results showed that the process of stripping gold......
Xiang-guang, LI Quan. Application of sodium sulfite in metallurgy of rare and precious metals[J]. Glod, 2014, 35(1): 48-51. Recovery of noble metals in chlorination-leaching solution by potential.... Guixi Smelt, Jiangxi Copper Corporation, Guixi 335424, China) Abstract: Using sodium sulfite as the reducing agent, the recovery of noble metals in chlorination-leaching solution by potential......
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Trans. Nonferrous Met. Soc. China 30(2020) 1091-1101 Electrochemical mechanism and flotation of chalcopyrite and galena in the presence of sodium silicate and sodium sulfite Ye ZHANG1,2, Run-qing... and electrochemical methods in the presence of sodium sulfite and sodium silicate, respectively, as a single depressant and their mixture as a combined depressant. Flotation tests revealed......
Null 包大杰1 (1.上海柴油机厂,上海,200432) 摘要: 问:何谓钢铁中全碳量(总碳量)和游离碳?答:碳在钢,铁中主要以化合状态和游离状态存在.在钢中主要以铁的碳化物如:Fe3C,Fe23C6等以及与某些合金元素的碳化物如:Mn3C,WC,TiC,MoC,VC,Cr3C2,Cr6C2等形式存在,统称为化合碳,钢中很少有游离碳.在铁中碳除以化合碳存在外,还以游离状态(石墨碳)存在,而且是主要形式.但是在白口铁中则多以碳化铁(Fe3C)形式存在. [全文内容正在添加中] ......
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acidic solution were analyzed. The experiment results demonstrate the thermodynamic analysis. The optimum technological parameters were determined for reducing selenium by sodium sulfite..., only the characteristic spectrum of elemental selenium is observed, which proves that the product of selenium powder is very pure. Key words: selenium; sodium sulfite; reduction; thermodynamics......
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