Results 21 to 30 of about 24,741 (304)

Mineralization of the Liwu large-scale stratiform copper deposits in Sichuan Province, China: Constraints from fluid inclusions

open access: yesChina Geology, 2023
: The Liwu stratiform copper deposit is located in the northwestern Jianglang dome, western China. Current studies mainly focus on the genetic type and mineralization of this deposit. Detailed fluid inclusion characteristics of metallogenic period quartz
Hua-yun Yuan   +8 more
doaj   +1 more source

Experimental Study on Recovery of Super Pure Iron Concentrate from an Iron Concentrate in Sichuan

open access: yesKuangchan zonghe liyong, 2022
The iron grade of a iron concentrate in Sichuan is 64.56%, and the content of SiO2 and Al2O3 is 5.50% and 2.01% respectively. Material composition research shows that iron minerals are mainly in the form of magnetic iron.
Ting He   +4 more
doaj   +1 more source

The Effect of Acidized Sodium Silicate on Flotation Separation Behavior of Barite and Dolomite

open access: yesKuangchan zonghe liyong, 2022
Effects of different degree of acidification water glass on the floatability of barite and dolomite as well as its possible principle of action were studied by means of single mineral flotation, solution chemical calculation, Zeta potential test and ...
Haiyong Jiang   +4 more
doaj   +1 more source

Half-metallic to insulating behavior of rare-earth nitrides [PDF]

open access: yes, 2004
The electronic structure of the rare-earth nitrides is studied systematically using the ab initio self-interaction corrected local-spin-density approximation.
Aerts, Catherine   +11 more
core   +1 more source

Industrial Application of New Environmentally friendly Tungsten Collector

open access: yesKuangchan zonghe liyong, 2022
In order to solve the problem of high COD value of tailings wastewater caused by tungsten collector during production, a new environmental friendly floating tungsten collector was developed and an industrial test was carried out in a concentrator in ...
Jin Liu, Hongying Zhang
doaj   +1 more source

Origin and fluxes of atmospheric REE entering an ombrotrophic peat bog in Black Forest (SW Germany): Evidence from snow, lichens and mosses [PDF]

open access: yes, 2006
The fate of the Rare Earth Elements (REE) were investigated in different types of archives of atmospheric deposition in the Black Forest, Southern Germany: (1) a 70 cm snow pack collected on the domed part of a raised bog and representing 2 months of ...
Le Roux, Gaël   +13 more
core   +1 more source

Synthesis of Pt–Rare Earth Metal Nanoalloys [PDF]

open access: yesJournal of the American Chemical Society, 2019
Chemical synthesis of platinum-rare earth metal (Pt-RE) nanoalloys, one of the most active catalysts for the oxygen reduction reaction, has been a formidable challenge, mainly due to the vastly different standard reduction potentials of the two metals and high oxophilicity of the latter.
Yang Hu   +4 more
openaire   +2 more sources

Effect of wheel speed on the crystallization behavior of as-quenched Nd-Fe-B alloys

open access: yesAIP Advances, 2016
A series of alloys composed of Nd9Fe85Nb0.5B5.5 were prepared through rapid quenching by different wheel speeds. Nanocomposite was usually obtained by subjecting the as-quenched alloys to a crystallization annealing.
Kuo Men   +5 more
doaj   +1 more source

RARE METALS AND POLITICS [PDF]

open access: yesRevista Română de Geografie Politică, 2020
Rare earth elements are a collection of 17 elements, which include lanthanides and scandals. They are used to make many devices ‒ from electronics to the defense industry. Currently, China is the largest producer of these raw materials, although deposits
Joanna TYSLER
doaj   +1 more source

Online preconcentration ICP-MS analysis of rare earth elements in seawater

open access: yes, 2012
The rare earth elements (REEs) with their systematically varying properties are powerful tracers of continental inputs, particle scavenging intensity and the oxidation state of seawater.
Stichel, Torben   +5 more
core   +1 more source

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