electrorefining of copper in the industry

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  Novel Additives in Copper Electrorefining—Small Laboratory …

  This research aimed to evaluate the effectiveness of new organic substances, including a novel ionic liquid based on polyhexamethylenebiguanidine, polyhexamethyleneguanidine, and safranin in the copper electrorefining process. Experiments were conducted ...

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  Comparative, real-time in situ monitoring of passivation …

  202341 · Abstract Anode passivation remains a serious problem to the copper electrorefining industry. Nickel, in the anode and in the electrolyte, has been suspected of contributing to the phenomenon.

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  Electrorefining - an overview | ScienceDirect Topics

  The final step in Cu pyrometallurgical processing is casting of flat, thin anodes for electrorefining. The anodes must be strong and smooth surfaced for efficient electrorefining—bubbles or blisters of SO2 are unacceptable. Blister formation is prevented by removing sulfur and oxygen from molten copper by air oxidation then hydrocarbon …

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  Validation of electrolyte conductivity models in industrial copper ...

  201881 · Conductivity is a typical physico-chemical property that has a substantial effect on electrical energy consumption in the electrorefining process. The objective of this study was to examine the validity of regression models predicting the conductivity of industrial copper electrorefining electrolytes. The models were based on data measured …

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  Chemical Composition Data of the Main Stages of Copper …

  2022216 · The mining industry has faced significant challenges to maintaining copper production technically, economically, and environmentally viable. Some of the major limitations that must be overcome in the coming years are the copper ore grade decline due to its intense exploitation, the increasing requirements for environmental protection, and …

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  Electrolytic Refining of Copper – An Overview

  2017825 · Since some silver, gold, and traces of platinum in the copper ore are contained in the anode slime, recovery of the noble metals is an important process for the copper industry. More than 70% of silver and almost 100% of gold in Japan are useful byproducts of electrochemical refining of copper.

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  Study of in-situ precipitation of arsenic bearing crystalline …

  202121 · On the other hand, the redox potential (Eh) and pH cannot be adjusted directly and simply in the process of copper electrorefining to avoid the influence on electrorefining efficiency. That is to say, it is of importance how to realize the in-situ precipitation of arsenic bearing crystalline precipitates in the process of copper …

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  The mineralogy of copper electrorefining | Semantic Scholar

  199081 · The impurities in copper anodes occur both in solid solution in the copper metal matrix and in discrete inclusions at the copper grain boundaries. During electrorefining, all the impurities undergo extensive chemical and/or morphological changes. These changes impact significantly on anode passivation, cathode quality, electrolyte purification and, of …

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  Extractive Metallurgy of Copper | ScienceDirect

  Secondary copper production from recycled end-of-use objects is 15%–20% of primary copper production. Electrochemical processing is always used to produce high-purity copper: electrorefining in the case of pyrometallurgical extraction and electrowinning in the case of hydrometallurgical extraction.

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