Comparison of oxidative roasting and alkaline leaching for removing chloride and fluoride from brass ashes

2021 ◽  
pp. 105619
Author(s):  
Júlia Mont'Alverne Martins ◽  
Achilles Junqueira Bourdot Dutra ◽  
Marcelo Borges Mansur ◽  
Alexandre Silva Guimarães
Keyword(s):  
Alkaline Leaching ◽  
Oxidative Roasting

Silicon and aluminum removal from ilmenite concentrates by alkaline leaching

2009 ◽  
Vol 96 (4) ◽  
pp. 327-332 ◽  
Author(s):  
G. Mazzocchitti ◽  
I. Giannopoulou ◽  
D. Panias
Keyword(s):  
Alkaline Leaching

Kinetic modelling of alkaline leaching of thorium hydroxide (Th(OH)4) from monazite

2021 ◽  
Author(s):  
Sanjith Udayakumar ◽  
Norlia Baharun ◽  
Sheikh Abdul Rezan ◽  
Aznan Fazli Ismail ◽  
Khaironie Mohamed Takip
Keyword(s):  
Kinetic Modelling ◽  
Alkaline Leaching ◽  
Thorium Hydroxide

Effects of mechanical activation on physicochemical properties and alkaline leaching of boron concentrate

2017 ◽  
Vol 173 ◽  
pp. 32-42 ◽  
Author(s):  
Yingzhe Xu ◽  
Tao Jiang ◽  
Mi Zhou ◽  
Jing Wen ◽  
Wanying Chen ◽  
...  
Keyword(s):  
Physicochemical Properties ◽  
Mechanical Activation ◽  
Alkaline Leaching

scholarly journals Gold recovery from flotation concentrate from gold mine tailings using dissolve smelting

2019 ◽  
Vol 55 (3) ◽  
pp. 343-349
Author(s):  
U. Erdenebold ◽  
C.-M. Sung ◽  
J.-P. Wang
Keyword(s):  
Molten Slag ◽  
Precious Metals ◽  
Copper Slag ◽  
Molten Copper ◽  
Flotation Concentrate ◽  
Sulphide Minerals ◽  
Oxidative Roasting ◽  
Valuable Metals ◽  
Gold Mine Tailings ◽  
High Concentrations

Gold flotation concentrate may contain relatively high concentrations of valuable metals such as iron, copper, and zinc, and occasionally, even precious metals such as gold. The major components of the concentrate are SiO2, Fe2O3, and Al2O3, but it also contains reactive sulphide minerals such as pyrite. The sulphides in the flotation concentrate are fully converted into an oxide form during oxidative roasting, therefore, the chemical composition of the roasted concentrate is considered to be a copper slag. High temperature smelting with additives to dissolve Au from the gold concentrate into a molten copper was used in the research. Gold greatly dissolved at 1600?? under a CaO/SiO2 ratio of 1.25, suggesting the increase in the dissolution of gold into molten copper with decreasing viscosity of the molten slag-like concentrate at high temperatures.

Recovery of Arsenic Trioxide from a Sludge-Like Waste by Alkaline Leaching and Acid Precipitation

2013 ◽  
Vol 5 (2) ◽  
pp. 255-263 ◽  
Author(s):  
Hua Zhang ◽  
Qian Yao ◽  
Li-Ming Shao ◽  
Pin-Jing He
Keyword(s):  
Arsenic Trioxide ◽  
Acid Precipitation ◽  
Alkaline Leaching

Study on the oxygen pressure alkaline leaching of gold with generated thiosulfate from sulfur oxidation

2018 ◽  
Vol 177 ◽  
pp. 178-186 ◽  
Author(s):  
Bin Xu ◽  
Ke Li ◽  
Qiang Zhong ◽  
Qian Li ◽  
Yongbin Yang ◽  
...  
Keyword(s):  
Oxygen Pressure ◽  
Sulfur Oxidation ◽  
Alkaline Leaching

Efficient separation of silica and alumina in simulated CFB slag by reduction roasting-alkaline leaching process

2019 ◽  
Vol 87 ◽  
pp. 798-804 ◽  
Author(s):  
Xiaobin Li ◽  
Hongyang Wang ◽  
Qiusheng Zhou ◽  
Tiangui Qi ◽  
Guihua Liu ◽  
...  
Keyword(s):  
Reduction Roasting ◽  
Alkaline Leaching ◽  
Efficient Separation ◽  
Leaching Process
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