Determination of Crystallite Size and Surface Roughness of Copper Deposits for Electrowinning in the Presence of an Organic Additive

Fabian, Cesimiro; Ridd, Michael J.; Ness, Sharon; Lancaster, Thomas; Griffin, Gregory

doi:10.1002/9781118804407.ch12

Cited by 1 publication

(1 citation statement)

References 7 publications

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“…Continuous Cu-ER is the principal method for producing >70% of high (or 99.97-99.99%) pure copper cathodes from impure (or 97-99% pure) blister, pyro-/fire refined and/or scrap copper cast anodes [4,6,21,28,30,[31][32][33][34][35][36][37][38][39][40][41][42][43]59]. Since there is a high demand for pure electrorefined copper, in addition to the newer cell designs to operate at high current densities [21,29,40,[44][45][46][47] and electrolyte additives (thioureas, glue/PEG, gelatin, avitone, polyacrylamide, organosulfonates, chloride, Cu(I), As(III), etc) are used in added to the acidic electrolyte to control the chemical and physical properties of copper electreodes i.e., prevent contamination nodulation of cathodes and anode passivation [4,[48][49][50][51][52][53][54][55][56][57][58][59][60][61].…”

Section: Introductionmentioning

confidence: 99%

Copper Refining Electrolyte and Slime Processing - Emerging Techniques

Acharya

2013

AMR

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Copper electro-refining (Cu-ER) is the principal method for producing >70% of high or 99.97% pure copper cathodes from 97-99% pure blister/fire refined-scrap copper anodes. While the inert and most of less soluble impurities settle as anode slime/sludge, other soluble impurities, particularly the metalloids (group VA/15 elements or Q: As, Sb and Bi) and some transition metals (Mt) co-dissolved with Cu(II). Since the soluble impurities build up in the copper refining electrolyte (CRE) which need monitoring and control to prevent contamination of the cathodes and passivation of the anodes before bleeding for spent CRE reprocessing. There is a high demand for pure electrorefined copper and electrolyte additives are added to the CRE to prevent nodulation or control the chemical and physical properties of copper cathodes. Various hydrometallurgical methods such as precipitation, adsorption, electro-dialysis, electro-winning, ion exchange and solvent extraction have been developed with some success to control the CRE impurities. So some emerging technologies for improved monitoring and control of the metalloid impurities in CRE and slime as well as development of saleable byproduct recovery (As, Sb, Bi) are briefly reviewed with particular emphasis on the precipitation for the metalloid slime resource recycling and product development.

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Section: Introductionmentioning

confidence: 99%

Copper Refining Electrolyte and Slime Processing - Emerging Techniques

Acharya

2013

AMR

View full text Add to dashboard Cite

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Determination of Crystallite Size and Surface Roughness of Copper Deposits for Electrowinning in the Presence of an Organic Additive

Cited by 1 publication

References 7 publications

Copper Refining Electrolyte and Slime Processing - Emerging Techniques

Copper Refining Electrolyte and Slime Processing - Emerging Techniques

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