Extraction of valuable metals from low-grade nickel matte by FeCl3·6H2O roasting and water leaching process with studies on phase evolution and kinetics analysis of chlorination process

2021 ◽  
pp. 105614
Author(s):  
Wenning Mu ◽  
Jie Xu ◽  
Hao Cheng ◽  
Shaohua Luo ◽  
Yuchun Zhai ◽  
...  
Keyword(s):  
Phase Evolution ◽  
Low Grade ◽  
Kinetics Analysis ◽  
Water Leaching ◽  
Chlorination Process ◽  
Nickel Matte ◽  
Leaching Process ◽  
Valuable Metals

Simultaneous extraction of nickel, copper, and cobalt from low–grade nickel matte by oxidative sulfation roasting-water leaching process

2021 ◽  
Vol 174 ◽  
pp. 107254
Author(s):  
Tengfei Xiao ◽  
Wenning Mu ◽  
Shuangzhi shi ◽  
Haixia Xin ◽  
Xueqing Xu ◽  
...  
Keyword(s):  
Low Grade ◽  
Water Leaching ◽  
Simultaneous Extraction ◽  
Nickel Matte ◽  
Leaching Process ◽  
Nickel Copper ◽  
Sulfation Roasting

A Sustainable and Selective Roasting and Water-Leaching Process to Simultaneously Extract Valuable Metals from Low-Grade Ni-Cu Matte

JOM ◽  
2018 ◽  
Vol 70 (10) ◽  
pp. 1977-1984 ◽  
Author(s):  
Fuhui Cui ◽  
Wenning Mu ◽  
Shuai Wang ◽  
Haixia Xin ◽  
Qian Xu ◽  
...  
Keyword(s):  
Low Grade ◽  
Water Leaching ◽  
Leaching Process ◽  
Valuable Metals ◽  
Selective Roasting

scholarly journals Efficient Synchronous Extraction of Nickel, Copper, and Cobalt from Low–Nickel Matte by Sulfation Roasting‒Water Leaching Process

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Qiangchao Sun ◽  
Hongwei Cheng ◽  
Xiaoyong Mei ◽  
Yanbo Liu ◽  
Guangshi Li ◽  
...  
Keyword(s):  
Water Leaching ◽  
Nickel Matte ◽  
Leaching Process ◽  
Nickel Copper ◽  
Sulfation Roasting

Recovery of valuable metals from a low-grade nickel ore using an ammonium sulfate roasting-leaching process

2012 ◽  
Vol 19 (5) ◽  
pp. 377-383 ◽  
Author(s):  
Xin-wei Liu ◽  
Ya-li Feng ◽  
Hao-ran Li ◽  
Zhi-chao Yang ◽  
Zhen-lei Cai
Keyword(s):  
Ammonium Sulfate ◽  
Low Grade ◽  
Leaching Process ◽  
Valuable Metals

scholarly journals Sulfuric Acid Baking—Water Leaching for Gold Enrichment and Arsenic Removal from Gold Concentrate

Minerals ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 1332
Author(s):  
Bongju Kim ◽  
Chulhyun Park ◽  
Kanghee Cho ◽  
Jaehyun Kim ◽  
Nagchoul Choi ◽  
...  
Keyword(s):  
Arsenic Removal ◽  
Hot Water ◽  
H2so4 Solution ◽  
Water Leaching ◽  
Leaching Process ◽  
Valuable Metals ◽  
Mineral Compositions ◽  
Gold Grade ◽  
Gold Enrichment ◽  
Leaching Procedure

During the roasting of gold concentrate to improve gold recovery, arsenic is released into the air and valuable elements such as Fe, Cu, Zn, and Pb are converted into oxide minerals. In this research, we evaluated the release of As and the loss of valuable metals during the acid baking and hot water leaching processes used for gold concentrate. The acid bake tests were conducted for gold concentrate using an electric furnace by applying various concentrations of H2SO4 solution under different baking times. The water leaching process was enacted using 70 °C water for the baked samples. Chemical and mineral compositions of the raw and treated samples were analyzed using AAS and XRD, respectively. The results show that soluble metal sulfates, such as rhomboclase and mikasite, were formed in the baked samples, and that the leaching of valuable metals (Fe, Cu, Zn, and Pb) was accelerated during the hot water leaching procedure. During acid baking, arsenic was partially removed by volatilization, and the rest of the arsenic-containing minerals were converted to soluble minerals. The soluble arsenic-containing mineral resulted in a dissolution that was 60 times higher than in the roasted sample. The maximum gold grade of solid residues increased up to 33% through the acid baking–water leaching process. It was confirmed that acid baking with H2SO4 prevented As release into the air, as well as the recovery of valuable metals through hot water leaching, such as Fe, Cu, Zn, and Pb, which were formerly discarded in the tailings.

Extraction of Copper and Nickel from Low-Grade Nickel Sulfide Ore by Low-Temperature Roasting, Selective Decomposition and Water-Leaching Process

JOM ◽  
2019 ◽  
Vol 71 (12) ◽  
pp. 4647-4658 ◽  
Author(s):  
Wenning Mu ◽  
Zhipeng Huang ◽  
Haixia Xin ◽  
Shaohua Luo ◽  
Yuchun Zhai ◽  
...  
Keyword(s):  
Low Temperature ◽  
Nickel Sulfide ◽  
Low Grade ◽  
Water Leaching ◽  
Leaching Process ◽  
Sulfide Ore

scholarly journals The role of CaCO3 in the extraction of valuable metals from low-nickel matte by calcified roasting—acid leaching process

2018 ◽  
Vol 409 ◽  
pp. 012027
Author(s):  
Yong Zhao ◽  
Shuhua Geng ◽  
Hongwei Cheng ◽  
Guangshi Li ◽  
Xionggang Lu ◽  
...  
Keyword(s):  
Acid Leaching ◽  
Nickel Matte ◽  
Leaching Process ◽  
Valuable Metals

Extraction of valuable metals from low nickel matte by calcified roasting−acid leaching process

2019 ◽  
Vol 29 (10) ◽  
pp. 2202-2212
Author(s):  
Shu-hua GENG ◽  
Guang-shi LI ◽  
Yong ZHAO ◽  
Hong-wei CHENG ◽  
Yi LU ◽  
...  
Keyword(s):  
Acid Leaching ◽  
Nickel Matte ◽  
Leaching Process ◽  
Valuable Metals
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