scholarly journals Acid Production from Mixed Sulfide Minerals: The Mixture Pyrite/Arsenopyrite

2003 ◽  
Vol 21 (3) ◽  
pp. 201-212
Author(s):  
C M V B Almeida ◽  
B F Giannetti
Keyword(s):  
Acid Production ◽  
Sulfide Minerals ◽  
Mixed Sulfide

New influence factor inducing difficulty in selective flotation separation of Cu-Zn mixed sulfide minerals

2015 ◽  
Vol 22 (2) ◽  
pp. 111-115 ◽  
Author(s):  
Jiu-shuai Deng ◽  
Ying-bo Mao ◽  
Shu-ming Wen ◽  
Jian Liu ◽  
Yong-jun Xian ◽  
...  
Keyword(s):  
Influence Factor ◽  
Sulfide Minerals ◽  
Selective Flotation ◽  
Mixed Sulfide

Oxidative Dissolution of Sulfide Minerals in Single and Mixed Sulfide Systems under Simulated Acid and Metalliferous Drainage Conditions

2021 ◽  
Vol 55 (4) ◽  
pp. 2369-2380
Author(s):  
Gujie Qian ◽  
Rong Fan ◽  
Jianyin Huang ◽  
Allan Pring ◽  
Sarah L. Harmer ◽  
...  
Keyword(s):  
Sulfide Minerals ◽  
Oxidative Dissolution ◽  
Mixed Sulfide

scholarly journals Mineralogy and Genesis of the Kihabe Zn-Pb-V Prospect, Aha Hills, Northwest Botswana

Minerals ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 685
Author(s):  
Nicola Mondillo ◽  
Maria Boni ◽  
Giuseppina Balassone ◽  
Nigel Forrester ◽  
Francesco Putzolu ◽  
...  
Keyword(s):  
Late Cretaceous ◽  
Sulfide Minerals ◽  
Hydrothermal Systems ◽  
The Other ◽  
Fold Belt ◽  
Direct Precipitation ◽  
Hydrothermal Processes ◽  
Alteration Halo ◽  
Two Generations ◽  
Mixed Sulfide

The Kihabe Zn-Pb-V > (Cu-Ag-Ge) prospect is located at the boundary between Namibia and Botswana (Aha Hills, Ngamiland District) in a strongly deformed Proterozoic fold belt, corresponding to the NE extension of the Namibian Damara Orogen. The Kihabe prospect contains Zn-Pb resources of 14.4 million tonnes at 2.84% zinc equivalent, Ag resources of 3.3 million ounces, and notable V-Ge amounts, still not evaluated at a resource level. The ores are represented by a mixed sulfide–nonsulfide mineralization. Sulfide minerals consist mainly of sphalerite, galena and pyrite in a metamorphic quartzwacke. Among the nonsulfide assemblage, two styles of mineralization occur in the investigated samples: A first one, characterized by hydrothermal willemite and baileychlore, and a second one consisting of supergene smithsonite, cerussite, hemimorphite, Pb-phosphates, arsenates and vanadates. Willemite is present in two generations, which postdate sulfide emplacement and may also form at their expenses. These characteristics are similar to those observed in the willemite occurrences of the nearby Otavi Mountainland, which formed through hydrothermal processes, during the final stages of the Damara Orogeny. The formation of the Kihabe willemite is likely coeval. Baileychlore is characterized by textures indicating direct precipitation from solutions and dissolution–crystallization mechanisms. Both processes are typical of hydrothermal systems, thus suggesting a hydrothermal genesis for the Kihabe Zn-chlorite as well. Baileychlore could represent an alteration halo possibly associated either with the sulfide or with willemite mineralization. The other nonsulfide minerals, smithsonite, cerussite, various Pb-phosphates and vanadates, are clearly genetically associated with late phases of supergene alteration, which overprinted both the sulfide and the willemite- and baileychlore-bearing mineralizations. Supergene alteration probably occurred in this part of Botswana from the Late Cretaceous to the Miocene.

Acid production from sulfide minerals using hydrogen peroxide weathering

2000 ◽  
Vol 15 (2) ◽  
pp. 235-243 ◽  
Author(s):  
Stuart R Jennings ◽  
Douglas J Dollhopf ◽  
William P Inskeep
Keyword(s):  
Hydrogen Peroxide ◽  
Acid Production ◽  
Sulfide Minerals

Effect of surfactants and their mixtures on wettability of sulfide minerals by molten sulfur

2019 ◽  
Author(s):  
El'vira Kolmachikhina ◽  
◽  
Ekaterina Ryzhkova ◽  
Dar'ya Dmitrieva ◽  
◽  
...  
Keyword(s):  
Sulfide Minerals ◽  
Molten Sulfur
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