Results 111 to 120 of about 8,700 (211)

THE CONSTITUTION OF ARSENOPYRITE. [PDF]

Journal of the American Chemical Society, 1897
F. W. Starke, H. L. Shock, Edgar F. Smith   +2 more
openaire   +1 more source

Enhanced Recovery of an Arsenopyrite-Type Gold Ore: Flotation Surface Chemistry and Kinetics of Blended Collector W8 with ADD

Colloids and Interfaces
This study investigated the flotation performance of W8, a blended xanthate collector containing ethyl, butyl, propyl, and amyl xanthates, combined with ammonium dibutyl dithiophosphate (ADD) for treating low-grade arsenopyrite-type gold ore from Golmud,
Qingqing Xing, Fei Li, Pingtian Ming, Zhen Wang   +3 more
doaj   +1 more source

Oxidation of arsenopyrite in bacterial ferric solutions

, 1994
In this study the oxidation of arsenopyrite in bacterial ferric solutions is examined. Leaching tests were conducted in air-stirred pachuca reactors in order to define the major factors influencing the oxidation of arsenopyrite and to underline the importance of indirect leaching of the mineral by bacterially generated acid ferric sulphate solutions ...
Κομνιτσας Κωνσταντινος(http://users.isc.tuc.gr/~kkomnitsas), Komnitsas Konstantinos(http://users.isc.tuc.gr/~kkomnitsas), Pooley F. D.()   +2 more
openaire   +2 more sources

The Paleo-Tethys subduction and related mineralization in the SW Yangtze Block: Evidence from the Zhesang Carlin-type gold deposit

Geosystems and Geoenvironment
The Zhesang gold deposit is a Carlin-type gold deposit located in the “Golden Triangle” structural belt of Yunnan-Guizhou-Guangxi. Pyrite and arsenopyrite are important gold-bearing minerals of the deposit.
Hui-Dong Yu, Li-Ming Yu, Nuru Said, Chang-Cheng Huang, Jiang-Han Wu, Chun-Mei Liu, Hai-Feng Chen, Hao Zou   +7 more
doaj   +1 more source

The Lilly Mine of Powell County, Montana [PDF]

, 1950
For many years the Elliston District, of Powell County has been a minor producer of gold, lead, zinc, and silver. Although never among the largest producing districts of the state, it has with the exception of the war years supplied a notable tonnage of ...
Aikin, Wilbur
core   +1 more source

Sulphur isotopic evidence for the genesis of the Au-Ag-Sb-W mineralization of the Fairbanks mining district, Alaska [PDF]

, 1984
Introduction -- Sampling and analytical technique -- Results and discussions -- References.Sulphur dioxide from sulphides was extracted for analysis by oxidation with Cuprous oxide at 1070º C, using essentially the method described by Robinson and ...
Metz, P.A.
core  

Shifts in the Microbial Populations of Bioleach Reactors Are Determined by Carbon Sources and Temperature. [PDF]

Biology (Basel), 2023
Bulaev A, Kadnikov V, Elkina Y, Beletsky A, Melamud V, Ravin N, Mardanov A.   +6 more
europepmc   +1 more source

Mineralogical characterization of Sn deposits from the Santa Fe District, Bolivia [PDF]

, 2015
The Sn-Zn-Pb-Ag Japo-Santa Fe-Morococala ore deposit is located in the Central Andean Belt province. The ore mineralization is hosted in a Paleozoic metasedimentary sequence and porphyritic Oligocene-Miocene igneous rocks. Ore minerals occur in veins and
Alfonso Abella, María Pura, Canet Miquel, Carles, García-Vallès, Maite, Jiménez-Franco, Abigail, Trujillo, Juan Elvys   +4 more
core  

The Puy-les-Vignes breccia pipe (Massif Central, France): a unique occurrence of polymetallic W-Nb±Ta-HREE-Bi-Cu-As±Au-Ag mineralization in the Variscan belt

, 2015
International audienceThe Puy-les-Vignes deposit (Limousin, French Massif Central) represents an uncommon occurrence in the West European Variscan belt of a hydrothermal tungsten mineralization associated with a breccia pipe structure.
Cuney, Michel, Harlaux, Matthieu, Marignac, Christian, Mercadier, Julien   +3 more
core   +1 more source

COMPARATIVE ANALYSIS OF THE PROPERTIES OF NANORELIEF VARIOUS GOLD-BEARING SULPHIDES

RUDN Journal of Engineering Research, 2016
The results of a comparative analysis of the different properties of nanorelief gold sulfides are presented. The morphology and microtopography of auriferous pyrite and arsenopyrite are described.
A E Vorob’ev, Honore Tcharo
doaj