Bacterial and chemical leaching pattern on copper ores of sandstone and limestone type

1993 ◽  
Vol 9 (3) ◽  
pp. 328-331 ◽  
Author(s):  
M. Ostrowski ◽  
A. Skłodowska
Keyword(s):  
Chemical Leaching ◽  
Copper Ores ◽  
Leaching Pattern

HYDROMETALLURGY METHOD OF REY-RICH MUD - CHEMICAL LEACHING AND SEPARATION -

2017 ◽  
Author(s):  
Yutaro Takaya ◽  
◽  
Koichiro Fujinaga ◽  
Yasuhiro Kato
Keyword(s):  
Chemical Leaching

scholarly journals Removal of Impurities from Shungite Via a Combination of Physical and Chemical Treatments

Minerals ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 245
Author(s):  
Toyohisa Fujita ◽  
Taichi Aoki ◽  
Josiane Ponou ◽  
Gjergj Dodbiba ◽  
Chunlin He ◽  
...  
Keyword(s):  
Magnetic Separation ◽  
Sulfur Removal ◽  
Nitrilotriacetic Acid ◽  
Microwave Treatment ◽  
Magnetic Flux Density ◽  
High Gradient Magnetic Separation ◽  
Chemical Leaching ◽  
Inorganic Acids ◽  
Mineralogical Study ◽  
Physical And Chemical

This study investigated the removal of sulfur and iron from shungite rocks through different methods after fine grinding: flotation, magnetic separation, microwave treatment, and chemical leaching. In this work, first, a mineralogical study of shungite was conducted. The carbon, silica, iron, and sulfur compositions in the as-received shungite were 45.4%, 38.3%, 4.6%, and 2.4%, respectively. In flotation, a sulfur grade of 1.4% was obtained. In the wet high-gradient magnetic separation at a magnetic flux density of 1 tesla, the iron and sulfur grades in the nonmagnetic fraction were 2.8% and 1.9%, respectively. Furthermore, the sulfur reduced to 0.2% by the 9 min microwave irradiation. In addition, chemical leaching using chelating reagents and inorganic acids was utilized to remove iron and sulfur. Nitrilotriacetic acid (NTA) could reduce the iron and sulfur grades to 2.0% and 0.9%, respectively. For leaching using reverse aqua regia, the iron and sulfur grades were reduced to 0.9% and 0.23%, respectively. For leaching using a 6N HCl with H2O2 aqueous solution, the iron and sulfur grades were reduced to 0.8% and 0.34%, respectively. Overall, chemical leaching using HCl with H2O2 was the most effective for iron and sulfur removal from shungite.

Silver catalyzed bioleaching of low-grade copper ores. Part III: Column reactors

2007 ◽  
Vol 88 (1-4) ◽  
pp. 35-51 ◽  
Author(s):  
J.A. Muñoz ◽  
D.B. Dreisinger ◽  
W.C. Cooper ◽  
S.K. Young
Keyword(s):  
Low Grade ◽  
Copper Ores

Formation conditions of high-grade tin-copper ores in the Churpun’ya deposit (Yakutia)

2007 ◽  
Vol 416 (1) ◽  
pp. 987-990
Author(s):  
A. V. Volkov ◽  
V. Yu. Prokof’ev ◽  
A. A. Sidorov
Keyword(s):  
High Grade ◽  
Formation Conditions ◽  
Copper Ores

Bench-scale insight into the amenability of case barren copper ores towards XRF-based bulk sorting

2018 ◽  
Vol 121 ◽  
pp. 129-136 ◽  
Author(s):  
Lixia Li ◽  
Genzhuang Li ◽  
Huaizhe Li ◽  
Guoqing Li ◽  
Ding Zhang ◽  
...  
Keyword(s):  
Bench Scale ◽  
Copper Ores ◽  
Insight Into
Sign in / Sign up

Export Citation Format

Share Document