Hydrometallurgical Methods for Extracting Non-ferrous Metals from Electronic Gadgets

This article explores an environmentally friendly method of complex processing of printed circuit boards of cell phones in order to extract gold and other valuable components without cyanides. Thiourea was used as reagents for leaching gold and silver. A nitric acid-based solder solvent was used to...

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Autores principales:	Zhanserik Shoshay, Ruslan Viktorovich Sapinov, Marzhan Anuarbekovna Sadenova, Petar Sabev Varbanov
Formato:	article
Lenguaje:	EN
Publicado:	AIDIC Servizi S.r.l. 2021
Materias:	Chemical engineering TP155-156 Computer engineering. Computer hardware TK7885-7895
Acceso en línea:	https://doaj.org/article/82b036481ac14f4881b7155e6ad22f28
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spelling	oai:doaj.org-article:82b036481ac14f4881b7155e6ad22f282021-11-15T21:48:57ZHydrometallurgical Methods for Extracting Non-ferrous Metals from Electronic Gadgets10.3303/CET21880232283-9216https://doaj.org/article/82b036481ac14f4881b7155e6ad22f282021-11-01T00:00:00Zhttps://www.cetjournal.it/index.php/cet/article/view/11816https://doaj.org/toc/2283-9216This article explores an environmentally friendly method of complex processing of printed circuit boards of cell phones in order to extract gold and other valuable components without cyanides. Thiourea was used as reagents for leaching gold and silver. A nitric acid-based solder solvent was used to separate the electronic components and gold plating from the printed circuit boards. To eliminate the harmful effect of copper on thiourea, the printed circuit boards were not crushed at the gold recovery stage. As a result, Ag 51 % and Au 89 % were extracted at t = 60 °C and a thiourea concentration of 12 g/L. The presented method is environmentally friendly in comparison with cyanide methods of gold recovery and effective in terms of the amount of gold recovery.Zhanserik ShoshayRuslan Viktorovich SapinovMarzhan Anuarbekovna SadenovaPetar Sabev VarbanovAIDIC Servizi S.r.l.articleChemical engineeringTP155-156Computer engineering. Computer hardwareTK7885-7895ENChemical Engineering Transactions, Vol 88 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Chemical engineering TP155-156 Computer engineering. Computer hardware TK7885-7895
spellingShingle	Chemical engineering TP155-156 Computer engineering. Computer hardware TK7885-7895 Zhanserik Shoshay Ruslan Viktorovich Sapinov Marzhan Anuarbekovna Sadenova Petar Sabev Varbanov Hydrometallurgical Methods for Extracting Non-ferrous Metals from Electronic Gadgets
description	This article explores an environmentally friendly method of complex processing of printed circuit boards of cell phones in order to extract gold and other valuable components without cyanides. Thiourea was used as reagents for leaching gold and silver. A nitric acid-based solder solvent was used to separate the electronic components and gold plating from the printed circuit boards. To eliminate the harmful effect of copper on thiourea, the printed circuit boards were not crushed at the gold recovery stage. As a result, Ag 51 % and Au 89 % were extracted at t = 60 °C and a thiourea concentration of 12 g/L. The presented method is environmentally friendly in comparison with cyanide methods of gold recovery and effective in terms of the amount of gold recovery.
format	article
author	Zhanserik Shoshay Ruslan Viktorovich Sapinov Marzhan Anuarbekovna Sadenova Petar Sabev Varbanov
author_facet	Zhanserik Shoshay Ruslan Viktorovich Sapinov Marzhan Anuarbekovna Sadenova Petar Sabev Varbanov
author_sort	Zhanserik Shoshay
title	Hydrometallurgical Methods for Extracting Non-ferrous Metals from Electronic Gadgets
title_short	Hydrometallurgical Methods for Extracting Non-ferrous Metals from Electronic Gadgets
title_full	Hydrometallurgical Methods for Extracting Non-ferrous Metals from Electronic Gadgets
title_fullStr	Hydrometallurgical Methods for Extracting Non-ferrous Metals from Electronic Gadgets
title_full_unstemmed	Hydrometallurgical Methods for Extracting Non-ferrous Metals from Electronic Gadgets
title_sort	hydrometallurgical methods for extracting non-ferrous metals from electronic gadgets
publisher	AIDIC Servizi S.r.l.
publishDate	2021
url	https://doaj.org/article/82b036481ac14f4881b7155e6ad22f28
work_keys_str_mv	AT zhanserikshoshay hydrometallurgicalmethodsforextractingnonferrousmetalsfromelectronicgadgets AT ruslanviktorovichsapinov hydrometallurgicalmethodsforextractingnonferrousmetalsfromelectronicgadgets AT marzhananuarbekovnasadenova hydrometallurgicalmethodsforextractingnonferrousmetalsfromelectronicgadgets AT petarsabevvarbanov hydrometallurgicalmethodsforextractingnonferrousmetalsfromelectronicgadgets
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Hydrometallurgical Methods for Extracting Non-ferrous Metals from Electronic Gadgets

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