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Reductive leaching of stibnite Sb2S3 flotation

The reductive decomposition of a stibnite Sb 2 S 3 flotation concentrate using elemental iron was investigated in hydrochloric acid The leaching process which proceeded via both reductive and non oxidative chemical decomposition reactions achieved desulphurisation in excess of 95 to produce elemental and dissolved antimony species ferrous ions and hydrogen sulphide gas

Effect of selected parameters on stibnite concentrates

Oct 01 2016 · Read Effect of selected parameters on stibnite concentrates leaching by ozone Hydrometallurgy on DeepDyve the largest online rental service for scholarly research with thousands of academic publications available at your fingertips

Reductive leaching of stibnite Sb2S3 flotation

Request PDF Reductive leaching of stibnite Sb2S3 flotation concentrates using metallic iron in a hydrochloric acid medium II Kinetics Reductive leaching of metal sulphides is an interesting

Stibnite Flotation

Reductive leaching of stibnite Sb2S3 flotation concentrate The reductive decomposition of a stibnite Sb2S3 flotation concentrate using elemental iron was investigated in hydrochloric acid The leaching process which p Antimony Separation Machine Antimony Jig Separation and Flotation

Major Mines Projects Stibnite Gold Project

Mining at the Stibnite Gold Project would be accomplished using conventional open pit hard rock mining methods Mining is planned to deliver 8 05 Mst of ore to the crusher per year 22 050 st d with stockpiling by ore type low antimony sulfide high antimony sulfide and oxide

PDF Leaching of Natural Stibnite using Sodium Hydroxide

Laboratory leaching tests of natural stibnite containing Sb2S3 SiO2 ZnS and FeS2 with NaOH or NaOH Na2S solution were carried out Antimony recovery in NaOH leaching was lower than that with

Antimony Leaching from Stibnite and Complex Ores

ANTIMONY LEACHING FROM STIBNITE AND COMPLEX ORES1 Y T John Kwong2 Allen Pratt2 and Gianluigi Botton2 Abstract To shed light on the leaching of Sb from mine wastes containing stibnite two series of experiments were conducted In one experiment polished slabs of a museum grade stibnite and a mixed sulfide ore sample containing 28 Sb were

Reductive leaching of stibnite Sb2S3 flotation

The reductive decomposition of a stibnite Sb2S3 flotation concentrate using elemental iron was investigated in hydrochloric acid The leaching process which proceeded via both reductive and non

Reductive leaching of stibnite Sb2S3 flotation

In the stibnite leaching work Meza Saucedo 1986 attributes the diffusion control to ionic diffusion in the liquid phase Gudyanga et al 1998 proposed the un reacted shrinking core model for the reductive decomposition of stibnite flotation concentrate using Cr II ionic species which is also a heterogeneous system This was on the basis

Leaching of the antimony and accompanying of elements

This paper presents results of the laboratory investigation of alkaline leaching of stibnite that is an important mineral occuring in the antimony bearing raw materials The following components were present in stibnite Sb2S3 SiO2 ZnS FeS2 The aim of

Process Flow Sheet for Gold and Antimony Recovery from

At the first stage of hydrometallurgical processing of stibnite Sb2S3 i e its leaching the following acidic leaching media are commonly applied mixture of hydrochloric and tartaric acids

Leaching of the antimony and accompanying of CORE

The following components were present in stibnite Sb2S3 SiO2 ZnS FeS2 The aim of this study was to establish the effect of composition of the aqueous alkaline leaching medium 1 NaOH 1 NaOH 1 Na2S2O3 1 NaOH 1 Na2S on the recoveries of Sb Fe Pb Zn Cu Ni and Hg

Oxidizing Roast Stibnite the Antimony Mineral

The leading antimony mineral is stibnite In smelting stibnite ore two processes are available precipitation and roasting reduction The former is suited only for high grade ores As low grade ores are more common than high grade roasting reduction is of greater importance than precipitation In the roasting process the aim may be to leave the oxidized antimony in the ore or it may be to

Leaching SlideShare

Dec 29 2015 · Oxidation of nonmetallic compounds by T thiooxidans Covellite CuS Molybdenite MoS2 Chalcocite Cu2S Stibnite Sb2S3 Sphalerite ZnS Cobaltsulfide CoS Galena PbS Millerite NiS MeS 2O2 MeSO4 9 Sulfur minerals can be oxizied by Fe3 ions and leached by an exclusively geochemical mechanism without the interaction of bacteria

antimony process plant leaching

How Antimony is Processed by Flotation The problem discussed in this antimony process study is limited to a concentrator capable of beneficiating 150 tons per day of antimony ore The antimony in this study occurs as the mineral stibnite Sb2S3 in association with small amounts of pyrite arsenopyrite galena and lead sulfantimonides

Stibnite Article about stibnite by The Free Dictionary

stibnite stĭb nīt antimony sulfide Sb 2 S 3 a mineral silvery gray in color with a metallic luster It crystallizes in the orthorhombic system Found in many parts of the world it is the most important ore of antimony It is commonly deposited by alkaline waters and occurs in association with quartz calcite sulfides of the base metals arsenic gold and silver

flotation of stibnite with high lead content

Reductive leaching of stibnite Sb2S3 flotation concentrate using Dec 19 2017 The reductive decomposition of a stibnite Sb2S3 flotation concentrate using elemental iron was investigated in hydrochloric acid be extremely beneficial for the recovery of antimony from its ores since reactants undergo spontaneous chemical changes due to

gold recovery from antimony ore stibnite

Antimony and Antimony Compounds Wiley Online Library cance of antimony for separating gold from sil ver The recovery of If stibnite Sb2S3 ore contains

Leaching of Natural Stibnite Using Na2S and NaOH Solutions

Calculated values of the kinetic parameters indicate that the leaching process is controlled by both intrinsic chemical reaction between Sb2S3 and Na2S at the liquid solid interface and pore diffusion Keywords Stibnite Kinetics Alkaline leaching Activation energy Order of reaction Author Emilia Smincakova 1 Pavel Raschman 1

How Antimony is Processed by Flotation

The problem discussed in this antimony process study is limited to a concentrator capable of beneficiating 150 tons per day of antimony ore The antimony in this study occurs as the mineral stibnite Sb2S3 in association with small amounts of pyrite arsenopyrite galena and lead sulfantimonides The gangue is composed largely of quartz but contains in addition a small amount of talc

Antimony Ore Article about Antimony Ore by The Free

The developed process includes oxidative chlorination leaching of stibnite Sb2S3 concentrate assaying 64 86 Sb prepared from indigenous low grade ore containing 20 16 Sb using ferric chloride FeCl3 solution in acidic medium as lixiviant followed by purification precipitation and crystallization of antimony trioxide as end product

Arsenic and antimony in geothermal waters of Yellowstone

WHITE 1967 and WEISSBERG 1969 previously reported stibnite Sb2S3 but not orpiment As precipitating in the near surface zone of alkaline geothermal systems INTRODUCTION GEOCHEMISTS HAVE debated whether the arsenic in hot springs is primarily of magmatic origin ONISHI and SANDELL 1955 WHITE 1957 or of rock leaching

Non oxidative leaching of mechanically activated stibnite

The results obtained by leaching stibnite with a basic solution of sodium hydrogen sulphide are presented in this paper The intensification of leaching by the mechanical activation produced by grinding the mineral in a planetary mill for 20 min brings about acceleration of the process by tenfold

how is stibnite ore processed arb group

How Antimony is Processed by Flotation The problem discussed in this antimony process study is limited to a concentrator capable of beneficiating 150 tons per day of antimony ore The antimony in this study occurs as the mineral stibnite Sb2S3 in association with small amounts of pyrite arsenopyrite galena and lead sulfantimonides

gold recovery from antimony ore stibnite

Process Flow Sheet for Gold and Antimony Recovery from Stibnite After leaching antimony has been recovered by electrodeposition in order to elements such as arsenic and antimony from ores concentrates Table 1 This implies that a strong alkaline in the case of stibnite Sb2S3 the

Antimony Archives Mineral Processing Metallurgy

The problem discussed in this antimony process study is limited to a concentrator capable of beneficiating 150 tons per day of antimony ore The antimony in this study occurs as the mineral stibnite Sb2S3 in association with small amounts of pyrite arsenopyrite galena and lead sulfantimonides The gangue is composed largely of quartz but contains in addition a small amount of talc

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