Results 71 to 80 of about 31,421 (268)

Aggregative growth of quasi-octahedral iron pyrite mesocrystals in a polyol solution through oriented attachment

, 2016
Iron pyrite (FeS2) mesocrystals were synthesized in polyol solution through hot-injection method. The synthesized iron pyrite is in quasi-octahedral shape with exposed {111} facets and possesses typical features of mesocrystals, i.e. rough surface, small
Zhu, Jianxi, Xi, Yunfei, Xian, Haiyang, Tang, Hongmei, He, Hongping, Liang, Xiaoliang   +5 more
core   +1 more source

Crystal Structure of [Sr(SeC2H)2(NH3)2], Solved and Refined From Powder X‐Ray Diffraction Data

Zeitschrift für anorganische und allgemeine Chemie, EarlyView.
The synthesis and crystal structure of [Sr(SeC2H)2(NH3)2] are described, the first alkaline earth metal compound with the recently discovered –SeC2H anion. The title compound releases NH3 even under ambient conditions, so its crystal structure had to be determined from moderately resolved X‐ray powder diffraction data.
Lisa Körtgen, Tim Mattick, Uwe Ruschewitz   +2 more
wiley   +1 more source

Phase relations of arsenian pyrite and arsenopyrite

, 2021
Arsenian pyrite containing above 1 wt% As plays a crucial role in deposition and deportment of Au and other chalcophile elements. The importance of arsenian pyrite led to theoretical and experimental studies that examined properties and genesis of the ...
Large, Ross R., Goemann, Karsten, Meffre, Sebastien, Kiseeva, Ekaterina S., Danyushevsky, Leonid V., Zhukova, Irina, Belousov, Ivan A., Stepanov, Aleksandr S.   +7 more
core   +2 more sources

Influence of Ca2+ and Mg2+ on Pyrite Flotation at Different Slurry Temperatures

Kuangchan zonghe liyong
This is an article in the field of mineral processing engineering. Through single mineral flotation test, solution chemistry calculation, Zeta potential detection, XPS detection, the influence and regulation mechanism of Ca2+ and Mg2+ on the flotation of
Xin WANG, Tingshu HE, Bo YU, Hanbing HE, Yubin WANG   +4 more
doaj   +1 more source

The flotation of pyrite using xanthate collecters

, 1986
Bibliography: leaves 117-123.The flotation properties of pyrite were found to be significantly influenced by variations in the pH. In acidic solutions the pyrite floatability is very high, and recoveries of 95% could be achieved using only a frother.
Dimou, Anna
core  

Comparison on the leaching kinetics of chalcocite and pyrite with or without bacteria

, 2010
The acid leaching, ferric leaching, and bioleaching of chalcocite and pyrite minerals were conducted in two sets of 3L stirred reactors The dissolution rates of copper and iron were correlated with leaching conditions In the acid leaching process, the ...
Wu Biao, Ruan Renman, Zhou E, Zhou Guiying, Wen Jiankang, Liu Xingyu, Ruan, RM   +6 more
core   +1 more source

Brittle Structural Control and Fluid Progress of the Jinqingding Gold Deposit: Implications for Epizonal Gold Mineralization

Acta Geologica Sinica - English Edition, EarlyView.
High‐grade orebodies are controlled by stress field with σ1 oriented NE‐SW during the main mineralization stage.Inferred NEE‐trending strike‐slip fault control another orebody distribution. ABSTRACT The Jinqingding gold deposit in eastern Jiaodong is a significant gold mineralization within the Muping–Rushan metallogenic belt.
Xiaohu Wang, Yuke Shen, Changshan Wei, Fengbin Han, Tao Guo, Huisheng Wang, Jiantao Yu, Yubo Song, Bo Wang, Longji Gong, Guijie Li   +10 more
wiley   +1 more source

Regulation mechanism and kinetic characteristics of pyrite oxidation mediated by aluminum-bearing minerals

Chemical Engineering Journal Advances
As the most prevalent metal sulfide mineral in mining environments, pyrite readily undergoes oxidation under surface conditions to generate acid mine drainage, resulting in a series of environmental pollution issues.
Junwei Zhang, Tao Lin, Xuke Dai, Tianqi Liu, Wenqian Zhang, Dayuan Jiang, Lei Kou   +6 more
doaj   +1 more source

THE DETERMINATION OF SULPHUR IN PYRITES. [PDF]

Journal of the American Chemical Society, 1895
n ...
openaire   +1 more source

SQUID-SIMS is a useful approach to uncover primary signals in the Archean sulfur cycle [PDF]

, 2014
The Agouron Institute and National Aeronautic and Space Administration Exobiology Award NNX09AM91G supported this work.Many aspects of Earth's early sulfur cycle, from the origin of mass-anomalous fractionations to the degree of biological participation,
Guan, Yunbin, Woodward W. Fischer, Fike, David A., Fike, David A, Jena E. Johnson, Raub, Timothy D, David A. Fike, Fischer, Woodward W., Johnson, Jena E, Eiler, John M, Timothy D. Raub, Raub, Timothy D., Yunbin Guan, Kirschvink, Joseph L., Johnson, Jane E., Joseph L. Kirschvink, John M. Eiler, Fischer, Woodward W, Kirschvink, Joseph L, Eiler, John M.   +19 more
core   +1 more source