Investigation of the interfacial adsorption mechanisms of 2
Abstract To enhance the selective separation of galena and sphalerite from their mixture minerals 2 hydroxyethyl dibutyldithiocarbamate HEBTC surfactant was synthesized and its first applications on the flotation of galena and sphalerite were studied
Flotation and surface modification characteristics of
galena are desorbed again by H2SO4 and replaced by diethyl dithiocarbamate but those of sphalerite and pyrite are not desorbed This flotation system may be applied to the bulk differential flotation process of sulfur bearing low grade lead zinc ores Key words CDR system; XPS analysis; galena; sphalerite; pyrite 1 Introduction
A reagent scheme for galena/sphalerite flotation
selectivity for the flotation separation of galena/sphalerite 1 Introduction Lead Pb metal has a wide range of applications in industries and everyday life The demand for Pb continuously
Trace Element Partitioning between Sphalerite Galena
sphalerite galena and chalcopyrite Most elements display a predictable systematic par titioning between co existing sulfides which is independent of ore type geological
Synthesis of trimethylacetyl thiobenzamide and its flotation
Galena and sphalerite used in the experiments were bought from Hunan province XRD and XRF tests of galena and sphalerite were showed in Fig bulk mineral was ground and screened to obtain samples with particle size of −76 to 38 μ m and particle size less than 38 μ m which were used for micro flotation tests and other tests respectively
Effect of seawater on flotation separation of galena from sphalerite
The pure galena and sphalerite employed in the study were obtained from Guilin Guangxi and Taolin Hunan China After crushing and screening the ore sample was prepared into particle sizes of −74 38 μm and −38 μm Samples with a particle size of −74 38 μm were individually packed into small vacuum bags each weighing g for
Photomicrograph showing the association of pyrrhotite Po galena
Download scientific diagram Photomicrograph showing the association of pyrrhotite Po galena Gn and sphalerite Sp from RampuraAgucha open cast mine Bhilwara belt Rajasthan Presence of
Re Os Dating of Galena and Sphalerite from Lead Zinc
Re Os Dating of Galena and Sphalerite from Lead Zinc Sulfide Deposits in Yunnan Province SW China 345 20 40 meshes sphalerite and galena separates of each ore sample were selected by hand picking under a binocular mi croscope without any other mineral inclusions under the naked eye Selected galena and sphalerite grains were then grinded to
Surface Modification of Galena Concentrate Sphalerite
galena and sphalerite concentrate as received have a parti cle size of d 80 = 75 μm The mineralogical composition of the samples was analyzed by X ray powder diractometry XRD; Rigaku Smartlab Japan showing that the complex Pb Zn ore contained galena sphalerite pyrite and a high amount of silica Fig 1a while the galena Fig 1b and
Selective flotation separation of galena from sphalerite via
The flotation results showed that collector with more nitrogen atoms DPTZ offered better selectivity for the flotation separation of galena from a galena/sphalerite mixed mineral system Separation selectivity FTIR and XPS studies showed in the case that collector solution environment pH value < pK a value N atoms did not participate in the coordination
In situ geochemical analysis of multiple generations of sphalerite
Arsenopyrite shows both euhedral and anhedral shape in close association with other anhedral sulfide minerals such as sphalerite and galena Fig 9 d f Wolframite is close intergrowth with quartz and sulfides Fig 9 f CL image shows a very complex structure of cassiterite Fig 9 g j
Weak alkaline flotation separation of galena from sphalerite
Lead and zinc are of two important non ferrous metals and widely used in battery [1] [2] cable sheathing [3] [4] radiation shielding [5] [6] military industry [7] [8] and so on playing an irreplaceable role in society development [9] [10] [11] Lead zinc sulfide ores mainly galena and sphalerite are the most important minerals for production of lead and zinc
Rates of Reaction of Galena Sphalerite Chalcopyrite
covellite whereas the galena sphalerite and arsenopyrite were free of contaminants The crystals were crushed in a steel mortar and pestle The resulting powder was passed under a magnet to remove any steel chips and then sieved to isolate the 60 100 mesh size fraction All samples were rinsed five times in acetone galena and sphalerite or
An environmental friendly sphalerite depressant 2
Generally sphalerite and galena have good floatability with xanthate while pure sphalerite doesn t response well to short chain xanthate [4] However the incorporation of impurity ion in sphalerite crystal such as Mn Fe Co Ni Cu Hg and Pb could enhance the reactivity of xanthate with sphalerite which is also called self activation [5] [6] [7]
Re Os dating of galena and sphalerite from lead zinc sulfide
Both galena and sphalerite have low and high variable Re concentrations and thus Re Os dating of these minerals have been less promising In addition the recovery of Re is extremely low for galena when conventional method was applied lending additional difficulty in precisely dating galena In this study we investigate the recovery of Re
Determination of rhenium and osmium by ICP MS for
routine anion exchange method is applied to galena causing difficulty in Re Os dating of galena In this study we investigated the mechanism of Re loss during sample preparation and tested a revised procedure for Re Os dat ing of galena and sphalerite Keywords Galena Sphalerite Rhenium and osmium Anion exchange resin ICP MS 1 Introduction
A reagent scheme for galena/sphalerite flotation
Galena sphalerite and pyrite are important metallic sulfide minerals and are often associated with one another In the flotation separation of galena pyrite mixed concentrate large amounts of
Exploring the Mechanism of 4 Hydroxy 1 3 5 triazine 6 thiol
The flotation separation of galena from sphalerite was commonly implemented under pH > which led to the consumption of lime In this paper 2 diethylamine 4 hydroxy 1 3 5 triazine 6 thiol DEHTT was synthesized and introduced as a highly selective collector to perform the depressant free flotation separation of Pb/Zn sulfide minerals
Selective depressive effect of pectin on sphalerite flotation
Galena and sphalerite are easily floatable in the presence of collectors such as butyl xanthate and diethyldithiocarbamate; thus the use of a depressant is necessary to decrease the surface hydrophobicity of a certain mineral selectively Bıçak et al 2012 Sphalerite depressants which could be roughly classified as inorganic and organic depressants are
Selective depressive effect of pectin on sphalerite flotation
In this work pectin was investigated as a non toxic and eco friendly sphalerite depressant in the flotation separation of galena and sphalerite The selective adsorption of pectin on sphalerite surfaces was predicted by molecular dynamics simulations and its depressive effect was evaluated by single and mixed mineral flotation tests
Sphalerite Meaning Properties Uses & Energy
Herein a reagent scheme comprising aerofloat collectors and Zn2 and SO32− depressants is developed for the flotation separation of galena from sphalerite rich sulphide ore The flotation results demonstrate that Zn2 and SO32−
Selective flotation separation of galena from sphalerite via
The flotation results showed that collector with more nitrogen atoms DPTZ offered better selectivity for the flotation separation of galena from a galena/sphalerite mixed mineral system Separation selectivity FTIR and XPS studies showed in the case that collector solution environment pH value < pK a value N atoms did not participate in
LA ICP MS sphalerite and galena trace element chemistry
The trace element endowments in sphalerite are considered a reliable fingerprint for classifying various genetic kinds of Zn Pb deposits Cook et al 2009;Ye et al 2011;Belissont et al 2014
Trace element geochemistry of sphalerite and chalcopyrite in
Trace element distribution patterns in sphalerite and chalcopyrite were studied for the zone refined Sofía D massive sulfide body in the María Teresa deposit which comprises a lower lower portion of dominant pyrite sheathed upward by zones of chalcopyrite Cu zone sphalerite Zn zone and galena sphalerite ± fahlore ± barite Pb Zn Ag zone