Microwave-assisted metallurgy

Z Peng, JY Hwang - International Materials Reviews, 2015 - journals.sagepub.com
Microwave heating has been extensively explored in various fields of materials processing.
This technology exhibits unique characteristics including volumetric and selective heating …

Biological pretreatment of carbonaceous matter in double refractory gold ores: A review and some future considerations

KT Konadu, DM Mendoza, RJ Huddy, STL Harrison… - Hydrometallurgy, 2020 - Elsevier
The pretreatment of carbonaceous material in double refractory gold ores (DRGO) is
necessary to decrease preg-robbing of gold and maximize gold recovery. DRGO contains of …

[HTML][HTML] Thermo-physical properties of selected hard rocks and their relation to microwave-assisted comminution

P Hartlieb, M Toifl, F Kuchar, R Meisels, T Antretter - Minerals Engineering, 2016 - Elsevier
This paper deals with experimental studies regarding the thermo-physical properties of
granite, sandstone and basalt in the temperature range of 25–1000° C. It is shown how …

Recovery of gold from sulfide refractory gold ore: Oxidation roasting pretreatment and gold extraction

H Qin, X Guo, Q Tian, D Yu, L Zhang - Minerals Engineering, 2021 - Elsevier
Recovering gold from sulfide refractory gold ore has been an important guarantee for the
sustainable development of gold industry, while there are many challenges in the treatment …

Rapid gold cyanidation from a sulfur-high and arsenic-high micro-fine concentrate via facile two-stage roasting pre-treatment

Y Lin, X Hu, F Zi, Y Chen, S Chen, X Li, J Li, Y Jiang… - Minerals …, 2022 - Elsevier
This study was conducted on a micro-fine refractory gold concentrate with high levels of
arsenic and sulfur, and main focus on being the roasting pre-treatment conditions and …

Research status of carbonaceous matter in carbonaceous gold ores and bio-oxidation pretreatment

H Yang, LIU Qian, X Song, J Dong - … of Nonferrous Metals Society of China, 2013 - Elsevier
Carbonaceous gold mines are important refractory gold ores. The previous results
demonstrate that the carbonaceous matter is mainly composed of elemental carbon, organic …

[HTML][HTML] Oxidation of sulfide mineral and metal extraction analysis in the microwave-assisted roasting pretreatment of refractory gold ore

A Hapid, S Zullaikah, A Kawigraha, Y Sudiyanto… - Arabian Journal of …, 2024 - Elsevier
The recovery of gold from refractory ore could guarantee sustainable development in the
gold industry. However, there are many challenges in the treatment of ore, such as …

Eco-friendly and reagent recyclable gold extraction by iodination leaching-electrodeposition recovery

Q Meng, X Yan, G Li - Journal of Cleaner Production, 2021 - Elsevier
Although iodination gold leaching is a clean, non-toxic and efficient non-cyanide gold
leaching process, it still has the problems of high reagents cost and difficult leaching solution …

Microwave roasting of flash flotation concentrate containing pyrite, arsenopyrite and carbonaceous matter

RK Amankwah, G Ofori-Sarpong - Minerals Engineering, 2020 - Elsevier
Refractory gold ores are difficult to treat, and several techniques have been proposed with
the aim of increasing gold extraction. A necessary prerequisite for processing such ores is to …

A review of Preg-robbing and the impact of chloride ions in the pressure oxidation of double refractory ores

WS Ng, Q Wang, M Chen - Mineral Processing and Extractive …, 2022 - Taylor & Francis
As the mining industry moves toward the extraction of increasingly complex ores to meet
global demands, one of the challenges in gold processing is the treatment of preg-robbing …