Results 141 to 150 of about 13,713 (230)
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Improving the separation of chalcopyrite and galena by surface oxidation using hydroxyethyl cellulose as depressant

, 2021
The role of hydrogen peroxide (H2O2) and hydroxyethyl cellulose (HEC) in the flotation separation of chalcopyrite and galena has been investigated and the reason why H2O2 can enhance the depression effect of HEC has been explained.
B. Feng   +4 more
semanticscholar   +1 more source

The photoelectrochemistry of galena

International Journal of Mineral Processing, 1994
Abstract The photoresponse of galena to chopped illumination has been studied to elucidate the surface oxidation of this mineral relevant to flotation. The results substantiated previous findings that sulfur remains in the mineral lattice during the initial stages of oxidation.
P.E. Richardson   +3 more
openaire   +1 more source

A reagent scheme for galena/sphalerite flotation separation: Insights from first-principles calculations

, 2021
Galena (PbS) is an important and abundant source of lead (Pb) metal. It often coexists with other sulphide minerals such as sphalerite (ZnS). Flotation has been extensively used to separate galena and sphalerite.
Li-min Zhang   +7 more
semanticscholar   +1 more source

Bismuthoan galena—A new variety of galena

Chinese Journal of Geochemistry, 1990
Bismuthoan galena is a variety of galena, resulting from the replacement of Bi for some Pb in galena. This mineral occurs in the No. 11 orebody of the Lamo skarn-type Zn−Cu deposit in the Dachang ore field, but only in the No. 11 orebody of the Lamo deposit is developed such bismuthoan galena.
openaire   +1 more source

Investigations on the depressant effect of sodium alginate on galena flotation in different sulfide ore collector systems

, 2021
The depressant effect of sodium alginate on galena flotation in different collector systems was investigated, mainly through micro-flotation tests, zeta potential measurements and molecular dynamics simulations.
Wei Chen   +5 more
semanticscholar   +1 more source

Induced adsorption of pectin on copper-ion-modified galena surfaces: Flotation and adsorption mechanism

Minerals Engineering, 2021
The development of organic depressants for sulfide mineral flotation has received widespread attention, and metal ions can enhance or weaken the depression effect of organic depressants.
Wang Changtao   +6 more
semanticscholar   +1 more source

Reductive leaching of indium from zinc-leached residue using galena as reductant

, 2021
Large quantities of indium-bearing zinc-leached residue (ZLR) are produced constantly in the hydrometallurgical production of zinc, including zinc, indium, iron and other valuable metals.
Yangyang Fan   +4 more
semanticscholar   +1 more source

The selective flotation separation of galena from sphalerite with a novel collector of 5-amyl-1, 2, 4-triazole-3-thione

Journal of Molecular Liquids, 2021
In this paper, 5-amyl-1,2,4-triazole-3-thione (ATT) was firstly applied as a collector in flotation separation of galena (PbS) from sphalerite (ZnS).
Zhiyong Zhang   +6 more
semanticscholar   +1 more source

Galena oxidation mechanism

Journal of Mining Science, 2012
The authors study the process of the oxidation of galena in the liquid phase of flotation pulp of alkaline pH in terms of the formal kinetics. Kinetic schemes of the process are considered. The theoretical kinetic parameters of the overall oxidation reactions of galena are defined as a result of calculations. The most probable rate-determining steps of
B. E. Goryachev, A. A. Nikolaev
openaire   +1 more source

Interaction mechanism of the adopted reagents in the flotation recovery of sphalerite and pyrite from a galena flotation tailing: First-principles calculations

, 2021
Sphalerite (ZnS), galena (PbS) and pyrite (FeS2) are the important metallic sulphide minerals. These three sulphide minerals are often associated with each other, and large amounts of sphalerite and pyrite are lost in the galena flotation tailings.
Li-min Zhang   +4 more
semanticscholar   +1 more source

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