Results 21 to 30 of about 212,822 (309)

Effective Gold Recovery from Near-Surface Oxide Zone Using Reductive Microwave Roasting and Magnetic Separation

Metals, 2018
High content of gold in near-surface oxide zones above the gold ore deposit could be recovered using cyanidation. However, restricting the use of cyanide in mines has made it difficult to recover gold within the oxide zone. In this study, we investigated
Bong-Ju Kim, Kang Hee Cho, Sang-Gil Lee, Cheon-Young Park, Nag-Choul Choi, Soonjae Lee   +5 more
doaj   +1 more source

Uptake and cytotoxicity of citrate-coated gold nanospheres : comparative studies on human endothelial and epithelial cells [PDF]

, 2012
The use of gold nanoparticles (AuNPs) for diagnostic applications and for drug and gene-delivery is currently under intensive investigation. For such applications, biocompatibility and the absence of cytotoxicity of AuNPs is essential. Although generally
C Kirkpatrick, Romero, Ignacio, Kirkpatrick, C. James, Weksler Babette B, Uboldi, Chiara, Gibson, Matthew I.; id_orcid, Gibson, Matthew, Kirkpatrick, C. J. (C. James), Weksler, Babette B., Freese, Christian, Unger, Ronald E., Romero Ignacio A, Kirkpatrick, James, C., Couraud, Pierre-Olivier, Kirkpatrick C, Gibson, Matthew I., Babette B Weksler, Weksler, Babette, Kirkpatrick, James,, Pierre-Olivier Couraud, Gibson Matthew I, Kirkpatrick, C. J., Couraud Pierre-Olivier, Unger Ronald E, Chiara Uboldi, Matthew I Gibson, Ignacio A Romero, Unger, Ronald, Freese Christian, Ronald E Unger, Uboldi Chiara, Romero, Ignacio A., Christian Freese   +32 more
core   +1 more source

Recovery of Gold and Iron from Cyanide Tailings with a Combined Direct Reduction Roasting and Leaching Process

Metals, 2018
Cyanide tailings are the hazardous waste discharged after gold cyanidation leaching. The recovery of gold and iron from cyanide tailings was investigated with a combined direct reduction roasting and leaching process. The effects of reduction temperature,
Pingfeng Fu, Zhenyu Li, Jie Feng, Zhenzhong Bian   +3 more
doaj   +1 more source

Gold nanoparticles explore cells: cellular uptake and their use as intracellular probes [PDF]

, 2014
Understanding uptake of nanomaterials by cells and their use for intracellular sensing is important for studying their interaction and toxicology as well as for obtaining new biological insight.
Septiadi, Dedy, Barker, Roger A., Huefner, Anna, Fragniere, Alexandra, Mahajan, Sumeet, Kuan, Wei-Li, Wilts, Bodo D., Patel, Imran I.   +7 more
core   +1 more source

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

Metals, 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, Tao Jiang, Bin Xu, Yongbin Yang, Qian Li   +4 more
doaj   +1 more source

Efficient gold recovery by microbial electrochemical technologies

Bioelectrochemistry, 2023
The applicability of microbial electrochemical technologies for the recovery of gold was investigated. Two-chamber microbial fuel cells (MFC) with bioanodes buried in sediment were used in two operating modes. The cathodes (gold foil or graphitized paper), submerged in HAuCl4, solutions, were short-circuited with the bioanodes, and thus for the first ...
Yolina, Hubenova, Elitsa, Chorbadzhiyska, Krassimir L, Kostov, Mario, Mitov   +3 more
openaire   +2 more sources

Raman Chemical Imaging of Chromate Reduction Sites in a Single Bacterium Using Intracellularly Grown Gold Nanoislands [PDF]

, 2011
Imaging live molecular events within micro-organisms at single-cell resolution would deliver valuable mechanistic information much needed in understanding key biological processes. We present a surface-enhanced Raman (SERS) chemical imaging strategy as a
Ravindranath, Sandeep, Irudayaraj, J., Kristene L. Henne, Dorothea K. Thompson, Henne, K. L., Sandeep P. Ravindranath, Joseph Irudayaraj, Thompson, Dorothea, Irudayaraj, Joseph, Ravindranath, S. P., Thompson, D. K., Henne, Kristene L.   +11 more
core   +2 more sources

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

Yankuang 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, FAN Zuo-peng, NIU Gui-qiang, LIU Hong-lan, LIU Hai-long, WANG Pan-zhi   +5 more
doaj   +2 more sources

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

International 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, Mohammad Etesami, Norita Mohamed   +2 more
doaj   +1 more source

Stable Zr-Piperazine MOFs for Efficient Gold Recovery [PDF]

Gold's importance in various industries, the ever-rising demand of electronics and shrinking gold reserves all underscore the pressing need to develop effective gold recovery methods from waste.
Belin, Anne Faustine Sido, Roth, Jocelyn Richard, Meoli, Matthieu, Scopelliti, Rosario, Queen, Wendy Lee, Stoian, Dragos   +5 more
core   +2 more sources