Results 21 to 30 of about 702,238 (308)

Recovery of Gold from Pregnant Thiosulfate Solutions by the Resin Adsorption Technique

open access: yesMetals, 2017
This review is devoted to an integrated evaluation of the current use and future development of the resin adsorption technique in gold recovery from pregnant thiosulfate solutions.
Zhonglin Dong   +4 more
doaj   +1 more source

Hydrometallurgical Methods for Extracting Non-ferrous Metals from Electronic Gadgets

open access: yesChemical Engineering Transactions, 2021
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
Zhanserik Shoshay   +3 more
doaj   +1 more source

Gas Sensing Properties of Single Conducting Polymer Nanowires and the Effect of Temperature [PDF]

open access: yes, 2008
We measured the electronic properties and gas sensing responses of template-grown poly(3,4-ethylenedioxythiophene)/poly(styrenesulfonate) (PEDOT/PSS)-based nanowires. The nanowires have a "striped" structure (gold-PEDOT/PSS-gold), typically 8um long (1um-
Cao, Yanyan   +4 more
core   +3 more sources

Electrodeposition of Au on Reticulated Vitreous Carbon From Chloride Media by an Electrogenerative Process

open access: yesInternational Journal of Electrochemical Science, 2012
This study has been initiated to investigate the electrodeposition of gold by an electrogenerative process in a batch reactor containing solutions of HAuCl4 salt and sodium chloride as a supporting electrolyte. In the process, porous graphite (PG) and 80
Fatemeh Salehi Karoonian   +2 more
doaj   +1 more source

The development of regrind–flotation pre-treatment of the CIL feed in copper–gold plants [PDF]

open access: yes, 2014
This study focused on the development of a new method, regrind-flotation pre-treatment, to improve the performance of the CIL (Carbon-in-Leach) circuit at copper-gold concentrators.
Bradshaw, Dee   +3 more
core   +1 more source

Research on the Efficient Recovery Technology of Gold Mineral in an Oxidized Ore [PDF]

open access: yesE3S Web of Conferences
In view of the characteristics of high content of gold minerals in limonite and great difficulty of flotation recovery, the research on process mineralogy and efficient recovery technology was carried out respectively.
Ji Qiang   +4 more
doaj   +1 more source

The Mineralogy Characteristics of Overflow Product from Hydrocyclone in the Jiaojia Gold Mine

open access: yesYankuang ceshi, 2014
The capacity of ore treatment reached 12,000 t/d and gold recovery achieved 92% in the Jiaojia Gold Mine. Broken product has been washed with double spiral classifier, and the ore slime yield was 7%.
HU Hai-xiang   +5 more
doaj   +2 more sources

Recovery of gold from computer circuit board scraps: the study of the effect of different reductants [PDF]

open access: yesشیمی کاربردی روز, 2013
Computer circuit boards (CCBs) are valuable because of their precious metal contents. In this regard, the recovery of gold from CCBs has attracted great interest. In this work, we report the recovery of gold from CCBs with different reductants.
Naghi Saadatjoo   +3 more
doaj   +1 more source

Study on Comprehensive Recovery of Gold, Silver and Copper Associated with Iron Ore in Qinghai

open access: yesKuangchan zonghe liyong, 2022
A small amount of gold and silver copper is associated with the iron ore of Qinghai, and the associated minerals reach the recovery standard; the test adopts the first magnetic rear floating and the first floating post-floating magnetic process flow; the
Yong Chen
doaj   +1 more source

Recovery of Gold from the Refractory Gold Concentrate Using Microwave Assisted Leaching

open access: yesMetals, 2020
Microwave technology has been confirmed to be suitable for use in a wide range of mineral leaching processes. Compared to conventional leaching, microwave-assisted leaching has significant advantages.
Kanghee Cho   +5 more
doaj   +1 more source

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