Results 21 to 30 of about 87,639 (320)

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

Advances in depressants used for pyrite flotation separation from coal/minerals

International Journal of Coal Science & Technology, 2022
Pyrite is separated from other minerals mainly by flotation. However, the hydrophilicity of pyrite is affected by many factors, causing it to easily enter the concentrate and consequently reduce the quality of concentrate.
Yu-Long Li, G. Cheng, Meng-Ni Zhang, Yi-Jun Cao, Ee Von Lau   +4 more
semanticscholar   +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

Origin of pyrite nodules at the top of the nantuo diamictites, Southern China

Scientific Reports, 2021
Pyrite nodules up to 20 cm in diameter are found at the top of the Marinoan (~ 635 Ma) Nantuo glacial diamictite as well as in the cap dolostones and shale/siltstones in the lower Doushantuo Formation in eastern Guizhou, southern China. Field occurrences,
Changjie Liu, Ying Lin
doaj   +1 more source

Pore Characterization of Pyrite in the Longmaxi Formation Shale in the Upper Yangtze Area of China

Frontiers in Earth Science, 2022
Pyrite is widely distributed in the Longmaxi marine shale in the Upper Yangtze area of China. Pyrite, one of the important components of shale, has an important influence on the enrichment of shale gas.
Xin Chen, Xin Chen, Lei Chen, Lei Chen, Xiucheng Tan, Xiucheng Tan, Xiucheng Tan, Chao Wang, Yubing Ji, Min Xiong, Min Xiong, Gaoxiang Wang, Gaoxiang Wang   +12 more
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

Observation of an Internal p-n Junction in Pyrite FeS2 Single Crystals: Origin of the Low Open Circuit Voltage in Pyrite Solar Cells [PDF]

, 2020
Pyrite FeS2 has long been considered a potentially ideal photovoltaic material, but solar cells utilizing pyrite exhibit low open-circuit voltages (VOC) and have failed to achieve conversion efficiencies >3 %.
Chris, Leighton, Bryan, Voigt, Jeff, Walter, Eray, Aydil, Michael, Manno, Moumita, Maiti, Bhaskar, Das, William, Moore   +7 more
core   +1 more source

Fabrication of Iron Pyrite Thin Films and Photovoltaic Devices by Sulfurization in Electrodeposition Method

Nanomaterials, 2021
Iron pyrite is a cheap, stable, non-toxic, and earth-abundant material that has great potential in the field of photovoltaics. Electrochemical deposition is a low-cost method, which is also suitable for large-scale preparation of iron pyrite solar cells.
Zheng Lu, Hu Zhou, Chao Ye, Shi Chen, Jinyan Ning, Mohammad Abdul Halim, Sardor Burkhanovich Donaev, Shenghao Wang   +7 more
doaj   +1 more source

Gradational development of slaty cleavage to schistosity -an example from the Iberian Pyrite Belt, Spain- [PDF]

, 1994
The Iberian Pyrite Belt is an Upper Paleozoic succession which has been divided into the Phyllite-Quartzite Group, the Volcanic-Sliceous Complex and the Culm Group in ascending order from base to the top. The contacts among them are conformable.
Suzuki, shigeyuki
core   +1 more source