硒对铜电解精炼过程的影响探究

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中图分类号：TF811 文献标志码：B 文章编号：1004-4345（2025）06-0040-04

Abstract To investigate theinfluence of seleniumon thecopper electrorefining processandthequalityof cathodecopper， industrial-scaletestswereconductedtosystematicallyexaminethebehaviorofseleniumfromanodecopperandpost-telurium precipitationsolutionsundervariousprocessconditions.Theresultsindicatethatwhen theseleniummassfraction intheanodecopper isbelow 0.04% ，it has no significant impactoncathode copperquality.Exceeding this threshold leads toagradual increase in particle plateratioandaprogressivequalitydeterorationincathodecopper.Foranodecopperwithhighseleniumcontentappropriately increasing the electrolyte temperature（ ）and the dosage of additives （adjustment range≤4 g/t ）can reduce theparticle plate ratio，whereas increasing theelectrolyteflowratedoesnotimprovecathodecopperquality.Whentheselenium massconcentrationin theelectrolyteceds4mg/L，tecompositioandmorpologyofteatingimpuritischangesigiantlyesuinginaon depositsandflakypartiesonthecathodecoppersuface.Thisseverelyafects thephysicalappearanceandelementalcompositionof the cathode copper and can even cause impurity elements to exceed acceptable limits.

Keywords selenium; copper electrorefining; electrolyte; cathode copper; floating impurities; quality control

铜电解原料阳极铜中含有多种杂质元素，这些元素在电解精炼过程中会以不同形态进入电解液系统，其电化学行为主要取决于自身电位及其在电解液中的溶解度。（剩余4752字）