Results 201 to 210 of about 405,346 (229)

Thiourea Leaching of Gold and Silver — Technology Update and Additional Applications

Mining, Metallurgy & Exploration, 1984
The hydrometallurgical application of thiourea in processing precious metal ores and concentrates has reached the development stage. This paper reviews recent technical literature covering the process development of thiourea leaching. In addition, recent fundamental contributions are discussed.
openaire   +1 more source

Unintentional Cementation in Thiourea Leaching

2014
Lapidus, Gretchen T., Urbano, Cesar
openaire   +2 more sources

Thiourea-functionalized chitosan for highly selective and high-capacity recovery of gold from leaching solutions.

International Journal of Biological Macromolecules
To overcome the limitations of chitosan in gold recovery, a novel adsorbent (TU-CTS) was strategically designed by grafting thiourea onto chitosan molecular chains.
Li-Cheng Ma, Leqi Gao, Shichang Hui, Chen-Xia Li, Hongyang Wang   +4 more
semanticscholar   +1 more source

Thiourea Leaching of Gold

2018
Sadia Ilyas, Muhammad Ahmed Mohsin, Jae-chun Lee   +2 more
openaire   +1 more source

Realistic Approach for Recovering Gold from Waste Electronics by Thiourea Leaching and Adsorption Using a Covalent Porphyrin/Triphenylamine-Based Porous Polymer

ACS Applied Polymer Materials
Amrita Preetam, Arindam Modak, S. N. Naik, K. Pant, Vivek Kumar   +4 more
semanticscholar   +1 more source

Thiourea leaching of gold: Elucidating the mechanism of arsenopyrite catalyzed thiourea oxidation by Fe3+ and the beneficial role of oxalate through experimental and density functional theory (DFT) investigations

Minerals Engineering
Ke Li, Qian Li, Yan Zhang, Xiao-Liang Liu, Yong-Bin Yang, Tao Jiang   +5 more
semanticscholar   +1 more source

Synergistical thiourea and thiosulfate leaching gold from a gold concentrate calcine with copper-ammonia catalysis

Separation and Purification Technology, 2023
Yue Lin, Xian-Zhi Hu, Fu-Ting Zi, Yun-Long Chen, Shu-Liang Chen, Xinrong Li, Li Zhao, Yufang Li   +7 more
semanticscholar   +1 more source

Evaluating the catalytic effect of pyrite on thiourea leaching of gold in the absence and presence of citrate

Journal of Molecular Liquids
Ke Li, Qian Li, Yan Zhang, Yong-Bin Yang, Tao Jiang   +4 more
semanticscholar   +1 more source

The prospects for an alternative gold leach reagent: Thiourea

Mineral Processing on the Verge of the 21st Century, 2017
S Örgül, Ü Atalay
openaire   +1 more source

THIOUREA LEACHING OF GOLD IN A CONTINUOUS PILOT PLANT

1987
Rein Raudsepp, Robert Allgood
openaire   +1 more source