Environmentally friendly process instead of cyanide leaching on recycling of gold and silver from jewellery scraps and wastes

Beste Aydın; Alim Gül

doi:10.1177/0734242X20931947

Environmentally friendly process instead of cyanide leaching on recycling of gold and silver from jewellery scraps and wastes

Beste Aydın^*
, Alim Gül

^*Bu çalışma için yazışmadan sorumlu yazar

Cevher Hazırlama Mühendisliği Bölümü

Araştırma sonucu: Dergiye katkı › Makale › bilirkişi

6 Atıf (Scopus)

Özet

Nowadays, the production and exploration of gold has an increased importance all over the world. Recycling is a significant source for the supply of gold and has a pronounced effect on its price. The flotation method, which is more economical and more environmentally friendly than cyanide leaching, has been investigated for recycling gold and silver from jewellery slag. A jewellery slag sample containing 28.3 ppm Au and 42.0 ppm Ag was obtained from a refinery in Turkey. Flotation concentrate assaying 614.6 ppm Au and 511 ppm Ag was achieved with recoveries of 89.0% and 83.2%, respectively. On the other hand, 87.8% Au and 81.5% Ag extractions were obtained by cyanide leaching tests. Based on these results, flotation is suggested, considering its environmental and economic benefits.

Orijinal dil	İngilizce
Sayfa (başlangıç-bitiş)	233-241
Sayfa sayısı	9
Dergi	Waste Management and Research
Hacim	39
Basın numarası	2
DOI'lar	https://doi.org/10.1177/0734242X20931947
Yayın durumu	Yayınlandı - Şub 2021

Bibliyografik not

Publisher Copyright:
© The Author(s) 2020.

Finansman

We would like to thank ONSA Refinery for providing the sample. The authors disclosed receipt of the following financial support for the research, authorship and/or publication of this article: This study was financially supported by the Istanbul Technical University within the scope of a scientific research project. The authors disclosed receipt of the following financial support for the research, authorship and/or publication of this article: This study was financially supported by the Istanbul Technical University within the scope of a scientific research project.

Finansörler
ONSA
Istanbul Teknik Üniversitesi

BM SKH

Bu sonuç, aşağıdaki Sürdürülebilir Kalkınma Hedefine/Hedeflerine katkıda bulunur

SKH 12 Sorumlu Üretim ve Tüketim

Belgeye Erişim

10.1177/0734242X20931947

Diğer Dosyalar ve Linkler

Link to publication in Scopus

Alıntı Yap

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title = "Environmentally friendly process instead of cyanide leaching on recycling of gold and silver from jewellery scraps and wastes",

abstract = "Nowadays, the production and exploration of gold has an increased importance all over the world. Recycling is a significant source for the supply of gold and has a pronounced effect on its price. The flotation method, which is more economical and more environmentally friendly than cyanide leaching, has been investigated for recycling gold and silver from jewellery slag. A jewellery slag sample containing 28.3 ppm Au and 42.0 ppm Ag was obtained from a refinery in Turkey. Flotation concentrate assaying 614.6 ppm Au and 511 ppm Ag was achieved with recoveries of 89.0\% and 83.2\%, respectively. On the other hand, 87.8\% Au and 81.5\% Ag extractions were obtained by cyanide leaching tests. Based on these results, flotation is suggested, considering its environmental and economic benefits.",

keywords = "Jewellery scrap, flotation, gold, jewellery waste, leaching, precious metal recycling, silver",

author = "Beste Aydın and Alim G{\"u}l",

note = "Publisher Copyright: {\textcopyright} The Author(s) 2020.",

year = "2021",

month = feb,

doi = "10.1177/0734242X20931947",

language = "English",

volume = "39",

pages = "233--241",

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TY - JOUR

T1 - Environmentally friendly process instead of cyanide leaching on recycling of gold and silver from jewellery scraps and wastes

AU - Aydın, Beste

AU - Gül, Alim

N1 - Publisher Copyright: © The Author(s) 2020.

PY - 2021/2

Y1 - 2021/2

N2 - Nowadays, the production and exploration of gold has an increased importance all over the world. Recycling is a significant source for the supply of gold and has a pronounced effect on its price. The flotation method, which is more economical and more environmentally friendly than cyanide leaching, has been investigated for recycling gold and silver from jewellery slag. A jewellery slag sample containing 28.3 ppm Au and 42.0 ppm Ag was obtained from a refinery in Turkey. Flotation concentrate assaying 614.6 ppm Au and 511 ppm Ag was achieved with recoveries of 89.0% and 83.2%, respectively. On the other hand, 87.8% Au and 81.5% Ag extractions were obtained by cyanide leaching tests. Based on these results, flotation is suggested, considering its environmental and economic benefits.

AB - Nowadays, the production and exploration of gold has an increased importance all over the world. Recycling is a significant source for the supply of gold and has a pronounced effect on its price. The flotation method, which is more economical and more environmentally friendly than cyanide leaching, has been investigated for recycling gold and silver from jewellery slag. A jewellery slag sample containing 28.3 ppm Au and 42.0 ppm Ag was obtained from a refinery in Turkey. Flotation concentrate assaying 614.6 ppm Au and 511 ppm Ag was achieved with recoveries of 89.0% and 83.2%, respectively. On the other hand, 87.8% Au and 81.5% Ag extractions were obtained by cyanide leaching tests. Based on these results, flotation is suggested, considering its environmental and economic benefits.

KW - Jewellery scrap

KW - flotation

KW - gold

KW - jewellery waste

KW - leaching

KW - precious metal recycling

KW - silver

UR - https://www.scopus.com/pages/publications/85087290079

U2 - 10.1177/0734242X20931947

DO - 10.1177/0734242X20931947

M3 - Article

C2 - 32608332

AN - SCOPUS:85087290079

SN - 0734-242X

VL - 39

SP - 233

EP - 241

JO - Waste Management and Research

JF - Waste Management and Research

IS - 2

ER -

Environmentally friendly process instead of cyanide leaching on recycling of gold and silver from jewellery scraps and wastes

Özet

Bibliyografik not

Finansman

BM SKH

Belgeye Erişim

Diğer Dosyalar ve Linkler

Parmak izi

Alıntı Yap