Results 1 to 10 of about 18,694 (284)

Flotation separation of pyrite and carbonate minerals from a carlin-type gold deposit in Guizhou by a new combined collector and its adsorption mechanism [PDF]

open access: yesScientific Reports
Flotation is the most common method for effective separation of pyrite and carbonate minerals from Carlin-type gold deposits. The effect of conventional xanthate collector on flotation of a Carlin-type gold mine in Guizhou province is poor, and it can ...
Zhixiong Zhu   +4 more
doaj   +2 more sources

Micrometric pyrite catalyzes abiotic sulfidogenesis from elemental sulfur and hydrogen [PDF]

open access: yesScientific Reports
Hydrogen sulfide (H2S) in environments with temperatures below 100 °C is generally assumed to be of microbial origin, while abiotic H2S production is typically restricted to higher temperatures (T).
Charlotte M. van der Graaf   +5 more
doaj   +2 more sources

Research progress in the electrochemical behavior of pyrite during grinding and flotation

open access: yes工程科学学报, 2021
Metal sulfides are highly desirable owing to their semiconductor properties promoting electrochemical reactions for sulfide flotation. As the most common sulfide mineral, pyrite is found in coal and can contain a small amount of gold.
Zhi-hui GONG   +4 more
doaj   +1 more source

Oxidation of pyrite: Consequences and significance [PDF]

open access: yesHemijska Industrija, 2002
This paper presents the most important studies on the oxidation of pyrite particularly in aqueous solutions. The consequences of pyrite oxidation was examined, as well as its importance, from both the technical-technological and environmental points of ...
Dimitrijević Mile D.   +2 more
doaj   +1 more source

Genetic Mechanism of Pyrite in the Shale of the Longmaxi Formation and Its Influence on the Pore Structure: A Case Study of the Changning Area, South Sichuan Basin of SW China

open access: yesFrontiers in Earth Science, 2022
Pyrite is a mineral that is commonly found in shale gas reservoirs. Its genetic mechanism and impact on pore and organic matter in shale gas reservoirs are critical for shale gas exploration.
Jiang He   +8 more
doaj   +1 more source

Comparison of different approaches for bioleaching of a granite-type uranium ore [PDF]

open access: yesE3S Web of Conferences, 2019
Uranium bioleaching has been rapidly developed in China during recent years. However, some problems during bioleaching, such as low uranium leaching efficiency for rocks lacking pyrite, remain to be solved.
Chen Gongxin   +5 more
doaj   +1 more source

Pyrite chemistry records a multistage ore forming system at the Proterozoic George Fisher massive sulfide Zn-Pb-Ag deposit, Mount Isa, Australia

open access: yesFrontiers in Earth Science, 2023
Trace element (TE) analysis of pyrite via LA-ICP-MS can be used to reconstruct the conditions of pyrite formation in complex mineral systems. The Carpentaria province in northern Australia is host to some of the world’s highest value Zn-Pb (+Ag, Cu ...
Philip Rieger   +6 more
doaj   +1 more source

Resource utilization of waste tailings: Simulated removal of nitrogen from secondary effluent by autotrophic denitrification based on pyrite tailings

open access: yesFrontiers in Environmental Science, 2022
In this report, eco-friendly and low-cost pyrite tailings are utilized as denitrification materials, while pyrite and magnetite are used as the control experimental groups to explore the denitrification performance of pyrite tailings.
Jie Mao   +19 more
doaj   +1 more source

Research Progress on Activation Mechanism of Pyrite Flotation

open access: yesKuangchan zonghe liyong, 2023
Pyrite is one of the most abundant sulfide minerals in nature, often associated with lead, zinc, copper and other high-value sulfide minerals. Activators are normally used to improve the floatability of pyrite that inhibited due to high alkalinity.
Shihao Li, Qiang Ma, Long Wang, Xu Yang
doaj   +1 more source

COARSE-CRYSTALLINE PYRITE OF CENTRAL TIMAN [PDF]

open access: yesМинералогия, 2021
The results of mineralogical, geochemical, X-ray, isotopic and spectroscopic studies of coarse-crystalline pyrite (Kyvvozh Formation, Dimtem’el Creek, Central Timan) are presented. Pyrite is characterized by cubic habit and zonal Co distribution.
R.I. Shaybekov   +5 more
doaj   +1 more source

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