Results 1 to 10 of about 50,853 (257)

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

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, Hui-xin DAI, Meng-yu LU, Li-wei WU, Ke-ke ZHAO   +4 more
doaj   +1 more source

Oxidation of pyrite: Consequences and significance [PDF]

Hemijska 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., Antonijević Milan M., Dimitrijević Valentina Lj.   +2 more
doaj   +1 more source

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

E3S 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, Sun Zhanxue, Liu Yajie, Liu Jinhui, Hu Baoqun, Zhang Hongjun   +5 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

Frontiers 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, Lan Yang, Xuewen Shi, Shengxian Zhao, Lieyan Cao, Shulin Pan, Feng Wu, Meng Wang, Meng Wang   +8 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

Frontiers 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, Philip Rieger, Joseph M. Magnall, Sarah A. Gleeson, Sarah A. Gleeson, Marcus Oelze, Marcus Oelze   +6 more
doaj   +1 more source

Research Progress on Activation Mechanism of Pyrite Flotation

Kuangchan 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

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

Frontiers 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, Jie Mao, Jie Mao, Mengqi He, Mengqi He, Ying Qin, You Chen, Xinyu Wang, Haojie Che, Haojie Che, Chun Cheng, Chun Cheng, Tiantian Wang, Wenliang Wang, Bai Sun, Bai Sun, Bai Sun, Shuguang Zhu, Shuguang Zhu, Shuguang Zhu   +19 more
doaj   +1 more source

Interaction mechanism of tannic acid with pyrite surfaces and its response to flotation separation of chalcopyrite from pyrite in a low-alkaline medium

Journal of Materials Research and Technology, 2020
In the process of chalcopyrite–pyrite flotation, depression of pyrite is of great significance. In this study, tannic acid (TA) was used to replace traditional inorganic reagents for depression of pyrite under the low-alkalinity condition, and the ...
Guang Han, Shuming Wen, Han Wang, Qicheng Feng   +3 more
doaj   +1 more source

Effect and mechanism of organic depressant on the hydrophobicity of chalcopyrite and pyrite under weakly alkaline environment

Journal of Materials Research and Technology, 2021
In a chalcopyrite and pyrite flotation system, the effect and mechanism of organic depressant sodium dimethyl dithiocarbamate on the hydrophobicity of chalcopyrite and pyrite were studied.
Xu Bai, Jian Liu, Shuming Wen, Yilin Lin
doaj   +1 more source

COARSE-CRYSTALLINE PYRITE OF CENTRAL TIMAN [PDF]

Минералогия, 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, M.Yu. Sokerin, V.G. Kotelnikov, A.Yu. Lysyuk, G.V. Ignatyev, E.M. Tropnikov   +5 more
doaj   +1 more source