Metallurgical Process for Total Recovery of All Constituent Metals from Copper Anode Slimes: A Review of Established Technologies and Current Progress

Lee, Jae-chun; Kurniawan, Kurniawan; Chung, Kyeong Woo; Kim, Sookyung

doi:10.1007/s12540-020-00716-7

Cited by 42 publications

(15 citation statements)

References 126 publications

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“…백금족의 전세계 매장량은 7만 톤에 불과한 것으로 알려져 있으며, 주로 남아공(89.9%), 러시아(5.6%), 짐바브 웨(1.7%) 및 미국(1.3%)에 집중되어 있다 [1]. 팔라듐은 우수한 촉매능력으로 인해 전세계 소비량의 절반 이상이 자동차 촉매변환기에 사용되고 있으며 [2,3], 기타 도금, 보 석, 치과재료 및 각종 전자장비에 사용된다 [4]. 팔라듐의 수요는 꾸준히 증가하고 있는 반면, 팔라듐의 생산량은 2006년을 기점으로 점점 감소하는 추세이다 [5].…”

Section: 서 론unclassified

Separation of Pd(II) and Zn(II) by Solvent Extraction using Commercial Extractants from Hydrochloric Acid Leaching Solution of Cemented Pd from Spent Electroplating Solutions

Song¹,

Nguyen²,

Lee³

2022

Korean J. Met. Mater.

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The demand for palladium (Pd) has increased and this has made it necessary to recover pure Pd from diverse secondary resources. To recover the small amount of Pd(II) present in spent electroplating solutions, Pd(II) is concentrated by cementation with zinc metal. In this work, a hydrometallurgical process consisting of leaching and solvent extraction was developed to recover Pd from the cemented Pd. The extraction behavior of Pd(II) and Zn(II) from synthetic HCl solution by commercial extractants such as LIX 63, Cyanex301, DOS, TBP, Alamin 308, Alamine 336 and Aliquat 336 was investigated by varying HCl concentration. The results showed that LIX 63, Cyanex 301 and DOS selectively extracted Pd(II) over Zn(II). These three extractants were employed to separate Pd(II) and Zn(II) from actual leaching solutions with cemented Pd using a mixture of 7.0 M HCl and 0.5% M H2O2 with 2 g/L pulp density at 60oC for 120 min. Cyanex 301 and DOS selectively extracted Pd(II) over Zn(II) from the leaching solution, while a small amount of Zn(II) was co-extracted with Pd(II) by LIX 63. A two stage counter-current extraction of actual leaching solution with LIX 63 resulted in the co-extraction of Zn(II) with Pd(II). The complete stripping of Pd(II) from the loaded Cyanex301 was achieved using either diluted aqua regia or a mixed solution of 5 M HCl and 0.5% NaClO at an A/O ratio of ten. The hydrometallurgical process is proposed to recover a pure Pd(II) solution from cemented Pd.

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Section: 서 론unclassified

Separation of Pd(II) and Zn(II) by Solvent Extraction using Commercial Extractants from Hydrochloric Acid Leaching Solution of Cemented Pd from Spent Electroplating Solutions

Song¹,

Nguyen²,

Lee³

2022

Korean J. Met. Mater.

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“…Refineries that report tellurium content typically show less than 5 wt % of tellurium with locational anomalies up to 22 wt %. [12,15,16] Recovery methods of tellurium from slimes range from volatilization to electrochemical techniques, but is plagued by the difficulty of separating tellurium and selenium. [12,15,17] Based on these difficulties, recycling post-consumer devices enriched in tellurium represents an important alternative source.…”

Section: Introductionmentioning

confidence: 99%

“…[12,15,16] Recovery methods of tellurium from slimes range from volatilization to electrochemical techniques, but is plagued by the difficulty of separating tellurium and selenium. [12,15,17] Based on these difficulties, recycling post-consumer devices enriched in tellurium represents an important alternative source. [8] Ignoring such a process would result in nearly 1.49 million tonnes of PV waste produced in the EU alone by 2050.…”

Section: Introductionmentioning

confidence: 99%

“…Refining one ton of copper generates about 20 kg of anode slimes, which typically vary in composition depending on mining location. Refineries that report tellurium content typically show less than 5 wt % of tellurium with locational anomalies up to 22 wt % [12,15,16] . Recovery methods of tellurium from slimes range from volatilization to electrochemical techniques, but is plagued by the difficulty of separating tellurium and selenium [12,15,17] …”

Section: Introductionmentioning

confidence: 99%

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Separation of Tellurium from Metal Chalcogenides through Mild Anhydrous Chlorination

Uible

Kieser

Bart

2022

Chemistry A European J

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The separation of tellurium from cadmium telluride is examined using a unique combination of mild, anhydrous chlorination and complexation of the subsequent tellurium tetrachloride with 3,5-di-tert-butylcatecholate ligands (dtbc). The resulting tellurium complex, Te(dtbc) 2 , is isolated in moderate yield and features a 10 3 to 10 4 reduction in cadmium content, as provided by XRF and ICP-MS analysis. Similar results were obtained from zinc telluride. A significant separation between Te, Se, and S was observed after treating a complex mixture of metal chalcogenides with this protocol. These three tunable steps can be applied for future applications of CdTe photovoltaic waste.

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“…Elektro rafinasyon aşamasının ana amacı, bakırın saf olmayan döküm anotlardan elektrokimyasal olarak çözündürülmesi ve ardından bakır iyonlarının katot yüzeyine taşınarak yüksek saflıkta bakır katotları elde edilmesidir. Bakır çözündürülmesi için uygulanan potansiyel altında, bakırın potansiyelinden daha düşük indirgeme potansiyeline sahip doğal safsızlıklar (Se, Te, As, Sb, Pb, Sn, Ag, Au, Pt ve Pd) da elektrolitik çözeltiye serbest olarak bırakılır [3]. Bu safsızlıkların çoğu daha büyük yoğunluğa sahiptir ve anot çamuru adı verilen yan ürün meydana getirerek elektrorafinasyon havuzunun tabanına yerleşme eğilimindedir.…”

Section: Introductionunclassified

Bakır Anot Çamurundan Bakırın Liçinde Düşük Ötektik Noktalı Çözücü Kullanımının Araştırılması

Rüşen

Topçu

Kalem

2021

Çukurova Üniversitesi Mühendislik Fakültesi Dergisi

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Bu çalışmada, pirometalurjik yöntemle metalik bakır üretiminin elektrokazanım aşamasında ortaya çıkan anot çamurundan bakır geri kazanımı üzerine çevre ve insan sağlığına duyarlı düşük ötektik noktalı çözücü (DES) kullanımı araştırılmıştır. Taguchi optimizasyon yöntemi kullanılarak liç sıcaklığı, liç süresi ve katı/sıvı oranı deneysel parametrelerin bakır geri kazanımı üzerine etkisi incelenmiştir. Kolin klorür (ChCl) ve ürenin 1:2 molar oranda karıştırılmasıyla hazırlanan DES çözücüsü ile yapılan liç işlemleri sonunda optimum şartlar; 95 o C'liç sıcaklığı, 2 saat liç süresi ve 1/20 katı/sıvı oranı olarak belirlenmiş ve bu şartlarda %98 bakır geri kazanımı elde edilmiştir. Yapılan bu çalışma ile ChCl-üre karışımıyla hazırlanan DES çözücüsünün anot çamurundan bakır geri kazanımı için çevreci bir çözücü adayı olabileceği ortaya konulmuştur.

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Metallurgical Process for Total Recovery of All Constituent Metals from Copper Anode Slimes: A Review of Established Technologies and Current Progress

Cited by 42 publications

References 126 publications

Separation of Pd(II) and Zn(II) by Solvent Extraction using Commercial Extractants from Hydrochloric Acid Leaching Solution of Cemented Pd from Spent Electroplating Solutions

Separation of Pd(II) and Zn(II) by Solvent Extraction using Commercial Extractants from Hydrochloric Acid Leaching Solution of Cemented Pd from Spent Electroplating Solutions

Separation of Tellurium from Metal Chalcogenides through Mild Anhydrous Chlorination

Bakır Anot Çamurundan Bakırın Liçinde Düşük Ötektik Noktalı Çözücü Kullanımının Araştırılması

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