Removal of impurities from copper electrolyte with adsorbent containing antimony

Wang, Xuewen; Chen, Qiyuan; Yin, Zhoulan; Ping-min, Zhang; Long, Ziping; Su, Zhongfu

doi:10.1016/s0304-386x(03)00026-4

Cited by 31 publications

(17 citation statements)

References 3 publications

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“…Navarro and Alguacil[58] reported the adsorption of antimony and arsenic from a copper electrorefining solution onto activated carbon. Wang et al[51] developed a new adsorbent based on Sb(V) and BaSO 4 as a carrier to recover impurities (e.g., Sb, Bi) from a copper electrolyte solution. Sb(V) can combine with Bi(III) and Sb(III) to precipitate these ions as Bi(SbO 4 ) and Sb(SbO 4 ).…”

mentioning

confidence: 99%

Antimony Recovery from End-of-Life Products and Industrial Process Residues: A Critical Review

Dupont

Arnout²,

Jones

et al. 2016

J. Sustain. Metall.

133

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Antimony has become an increasingly critical element in recent years, due to a surge in industrial demand and the Chinese domination of primary production. Antimony is produced from stibnite ore (Sb 2 O 3) which is processed into antimony metal and antimony oxide (Sb 2 O 3). The industrial importance of antimony is mainly derived from its use as flame retardant in plastics, coatings, and electronics, but also as decolourizing agent in glass, alloys in lead-acid batteries, and catalysts for the production of PET polymers. In 2014, the European Commission highlighted antimony in its critical raw materials report, as the element with the largest expected supply-demand gap over the period 2015-2020. This has sparked efforts to find secondary sources of antimony either through the recycling of end-of-life products or by recovering antimony from industrial process residues. Valuable residues are obtained by processing of gold, copper, and lead ores with high contents of antimony. Most of these residues are currently discarded or stockpiled, causing environmental concerns. There is a clear need to move to a more circular economy, where waste is considered as a resource and zero-waste valorization schemes become the norm, especially for rare elements such as antimony. This paper gives a critical overview of the existing attempts to recover antimony from secondary sources. The paper also discusses the possibility of waste valorization schemes to guarantee a more sustainable life cycle for antimony.

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mentioning

confidence: 99%

Antimony Recovery from End-of-Life Products and Industrial Process Residues: A Critical Review

Dupont

Arnout²,

Jones

et al. 2016

J. Sustain. Metall.

133

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“…Wang et al (2017) found that when the acidity of a copper electrolyte decreased, BiAsO 4 (s) will be formed, presenting difficulties to be redissolved in the electrolyte. In addition, the effect of having Sb(V) in the electrolyte has been reported in the literature (Wang et al, 2003;Xiao et al, 2013). Wang et al (2003) studied the removal of impurities from copper electrolytes, observing that Sb(V) can combine with Bi(III) or Sb(III) to form BiSbO 4 or SbSbO 4 .…”

Section: Tablementioning

confidence: 99%

“…Nowadays, in order to control the levels of As, Sb and Bi, some widespread technologies have been studied to remove Sb and Bi from the electrolyte by: i) precipitation (Barros et al, 2022;Moats et al, 2021;Thanu and Jayakumar, 2020); ii) adsorption with activated carbon (Navarro and Alguacil, 2002;SALARI et al, 2017;Wang et al, 2003), iii) solvent extraction (SX) (Navarro et al, 1999;Szymanowski, 1998;Wang, 2004), iv) ion exchange (IX) (Long et al, 2020;Riveros, 2010;RIVEROS et al, 2008) or, v) electrodialysis (Alka et al, 2021;Cifuentes et al, 2002;Liu et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

Recovery of antimony and bismuth from arsenic-containing waste streams from the copper electrorefining circuit: An example of promoting critical metals circularity from secondary resources

Luo

Labastida

Cortina

et al. 2023

Journal of Cleaner Production

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“…Other techniques have been proposed to control antimony concentrations in copper electrolytes, including precipitation [15], adsorption [16,17] and ion exchange [18]. Ion exchange resins are used in several copper refineries [19,20] to remove Sb and Bi and maintain their concentrations below 0.50 g L −1 in commercial electrolytes [21,22], although the concentrations of these elements can increase due to the high impurities content in copper anodes [23].…”

Section: Introductionmentioning

confidence: 99%

Removal of Sb Impurities in Copper Electrolyte and Evaluation of As and Fe Species in an Electrorefining Plant

Torres

Moats

Ríos

et al. 2021

Metals

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Antimony and arsenic concentrations and their oxidation states (Sb(III), Sb(V), As(III) and As(V)) in copper electrorefining electrolyte can affect copper cathode quality through the formation of floating slimes. A laboratory-scale pilot plant was operated to remove Sb from commercial electrolyte. The pilot plant consisted of a pre-treatment process with copper shavings followed by ion exchange. The results indicated that Sb(III) was removed from copper electrolyte completely, while Sb(V) was partially eliminated. The concentrations of As(III) and As(V) were not affected, and the poisoning of the ion exchange resin by Fe(III) was avoided by pre-reduction to Fe(II) by copper shavings. The operation configuration of the pilot plant was applied to the design of an industrial plant for Sb/Bi removal at the Atlantic Copper Refinery in Huelva, Spain. The evolution of Sb, Fe and As species in the commercial electrolyte was monitored prior to and after the installation of the Sb/Bi removal plant. The results show a ca. 45% decrease in total Sb content (from 0.29 g L−1 to 0.16 g L−1) in the electrolyte. This reduction is more noticeable for Sb(III), whose concentration decreased from 0.18 g L−1 to 0.09 g L−1, whereas Sb(V) concentration diminished from 0.11 g L−1 to 0.07 g L−1. The resin also retained ca. 75% of the Bi content (0.15–0.22 g L−1). The total As increased during the study period (from 7.7 to 9.0 g L−1) due to changes in plant inputs. Arsenic was predominantly As(V) (ca. 93–95%). The total Fe concentration experienced little variation (0.9–1.1 g L−1) with Fe(II) being the main species (ca. 94–96%).

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Removal of impurities from copper electrolyte with adsorbent containing antimony

Cited by 31 publications

References 3 publications

Antimony Recovery from End-of-Life Products and Industrial Process Residues: A Critical Review

Antimony Recovery from End-of-Life Products and Industrial Process Residues: A Critical Review

Recovery of antimony and bismuth from arsenic-containing waste streams from the copper electrorefining circuit: An example of promoting critical metals circularity from secondary resources

Removal of Sb Impurities in Copper Electrolyte and Evaluation of As and Fe Species in an Electrorefining Plant

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