roasting antimony sulfides
2019-04-11T16:04:48+00:00
roasting antimony sulfides annasweethomede
roasting antimony sulfides Chemistry of Oxidising Roasting The sulphuric anhydride resulting from the decomposition of this copper sulphate converts the silver into sulphate and maintains it as such just as in turn at a lower temperature the copper itself had been maintained in the form of sulphate by the sulphuric anhydride eliminated from the iron sulphideROASTING OF SULFIDE MINERALS In addition to common metals like copper, lead, zinc, and nickel a number of other metals such as antimony, bismuth, cadmium, cobalt, mercury, and molybdenum occur as sulfide minerals Sulfides are not reduced with the most widely used reducing agents, carbon and hydrogen, because the free energy change for the reactionsROASTING OF SULFIDE MINERALS Wiley Summary In addition to common metals like copper, lead, zinc, and nickel, a number of other metals such as antimony, bismuth, cadmium, cobalt, mercury, and molybdenum occur as sulfide minerals In the extraction of metals from sulfides, roasting is applied to achieve different objectives depending on the overall process flow sheetRoasting of Sulfide Minerals Physical Chemistry of
Thermodynamic and kinetics analysis of the sulfurfixed
Aiming at these problems, we present a new method of sulfurfixing roasting of antimony sulfide This method uses ZnO as a sulfurfixing agent, and roasting with Sb 2 S 3 was carried out at 673 K~1073 K to produce Sb 2 O 3 and ZnS By calculating the thermodynamics of the reactions, we can conclude that the Gibbs Free Energy Change (ΔGθ) of roastingIn oxidative roasting of zinc concentrates, antimony sulfides oxidize to antimony oxides (Sb2O3, Sb2O5) and GeS2 oxidizes to GeO2(PDF) BEHAVIOR OF ANTIMONY AND GERMANIUM Download Citation Roasting of Sulfide Minerals In addition to common metals like copper, lead, zinc, and nickel, a number of other metals such as antimony, bismuth, cadmium, cobalt, mercury Roasting of Sulfide Minerals
Extraction of antimony from antimony sulfides bearing
Natural ores containing antimony sulfides, or concentrates derived from such ores, are commonly roasted in air to recover the antimony values as the metal or oxide This process generates large quantities of SO 2 gas, an objectionable air pollutant The roasting process also converts arsenic present in the ore to arsenic compounds incorporated as an impurity in the antimony productOxidation roasting is often used in sulfide ore smelting It is used to remove the sulfur ore, arsenic, antimony, and other harmful impurities in ore In oxidation roasting, the sulfide ore is first decomposed into lowvalence sulfide and sulfur, and then the oxide is formed The oxidation roasting of some sulfide ores is exothermicRoasting an overview ScienceDirect TopicsAntimony is sometimes found natively, but more frequently it is found in the sulfide stibnite (Sb2S3) which is the predominant ore mineral Gold Refractory gold is in the ground gold ore trapped in sulphide lattice structures that conventional processes are unable to unlockAntimony Gold Tri Star
Roasting of Sulfide Minerals
Download Citation Roasting of Sulfide Minerals In addition to common metals like copper, lead, zinc, and nickel, a number of other metals such as antimony, bismuth, cadmium, cobalt, mercury Aiming at these problems, we present a new method of sulfurfixing roasting of antimony sulfide This method uses ZnO as a sulfurfixing agent, and roasting with Sb 2 S 3 was carried out at 673 K~1073 K to produce Sb 2 O 3 and ZnS By calculating the thermodynamics of the reactions, we can conclude that the Gibbs Free Energy Change (ΔGθ) of Thermodynamic and kinetics analysis of the sulfurfixed manium, arsenic, antimony, bismuth, zinc and iron will form Little attention has been devoted to the reaction process associated with roasting sulfides using NH 4 Cl as a chlorinating agent(PDF) Thermodynamics of salt roasting of sulphide ores
Roasting A Study on Environmental Aspects, OffGas
Roasting of sulfide concentrates and refractory ores is an important process step in the production of metals and chemicals Sulfides of iron, zinc, copper and other metals are oxidised with air between 600 and 1000C into metal oxides or sulfates and gaseous sulfur dioxide Roasting of gold concentrates and ores is a typical processing step used to produce a porous calcine suitable for cyanide In roasting ores from the North Star mine (Hailey, Ida) in the small electric roaster, the outlet air tube became choked with arsenic trioxide shortly after the roasting had started, and further evolution of arsenic soon ceased Antimony appears to be less completely volatilized than arsenicZinc Roasting Furnaces 911 Metallurgist the sulfides of both mercury and antimony to develop a method or methods for the roasting only a portion of the ore For this reason, aside from a few small operations, concentration of mercury ores never has been accepted for plant practiceSELECTIVE EXTRACTION OF MERCURY AND ANTIMONY
Metallic sulphide and sodium carbonate interacting
The interaction of nonferrous and iron sulfides with sodium and potassium carbonate is little studied Patent 4,541,993 (USA) offers joint sulphatization roasting of sulphide ores and carbonate or bicarbonate of alkali metals for extracting nonferrous metals (copper, nickel, cobalt and zinc) Studies of the behavior of PbS, Cu 2 S, Bi 2 S 3 FeS 2 8 Antimony sulfide ores Gold occurs mainly as native gold, with minor to moderate amount of aurostibite, either liberated or locked in sulfides Big Bell (Australia), Hechi (China), Manhattan (USA) 9 Bismuth sulfide ores Gold occurs mainly as native gold, with Establishing thE ProcEss MinEralogy of gold orEsThe Sulfide Class minerals comprise an economically important class of minerals Most major ores of important metals such as copper, lead and silver are sulfides Strong generalities exist in this class The majority of sulfides are metallic, opaque, generally sectile, soft to average in hardness and they have high densities, black or darkcolored streaks, and an igneous originThe Mineral Gallery Sulfides Class
PGM Ore Processing at Impala's UG2 Concentrator
and nickel sulfides PGE sulphides comprise roughly 70% of the PGM (platinum group minerals) in the UG2 plant feed, the remainder largely being alloys of iron, lead, arsenic and antimony, or tellurides As is typical of such ores, UG2 platinum group mineralisation is highly complex From the metallurgical perspective,Extraction of antimony from antimony sulfides bearing The roasting process also converts arsenic present in the ore to arsenic compounds incorporated as an impurity in the antimony product This arsenic impurity may be tolerable when the ore or ore concentrate contains minute amounts of arsenic, but many ores contain such large amounts that the by products from roasting antimony Prominer Natural ores containing antimony sulfides, or concentrates derived from such ores, are commonly roasted in air to recover the antimony values as the metal or oxide This process generates large quantities of SO 2 gas, an objectionable air pollutant The roasting process also converts arsenic present in the ore to arsenic compounds incorporated Extraction of antimony from antimony sulfides bearing
SELECTIVE EXTRACTION OF MERCURY AND ANTIMONY
the sulfides of both mercury and antimony to develop a method or methods for the roasting only a portion of the ore For this reason, aside from a few small operations, concentration of mercury ores never has been accepted for plant practice antimony from complex sulfides ore was studied and the optimized conditions were obtained However, few research has been reported on the kinetics of antimony leaching by ozone In this work, the kinetics of antimony and iron from complex sulfides ore and the factors affecting antimony extraction were investigated 2 Experimental 21 MaterialsLeaching kinetics of antimonybearing complex sulfides 8 Antimony sulfide ores Gold occurs mainly as native gold, with minor to moderate amount of aurostibite, either liberated or locked in sulfides Big Bell (Australia), Hechi (China), Manhattan (USA) 9 Bismuth sulfide ores Gold occurs mainly as native gold, with Establishing thE ProcEss MinEralogy of gold orEs
An ore contains arsenic and antimony as impurities
Roasting is the process of strongly heating the ore into oxide in an unlimited supply of air This process is commonly used for sulfides ores Impurities of nonmetal like sulfur, arsenic, phosphorus, etc are oxidized and removed as a volatile gasA method for extracting antimony from solids containing antimony sulfides is described An improvement in the method of extracting antimony by oxidation of an aqueous mixture of the solids in an acid or by oxidation of a leaching liquor obtained by leaching the antimony from the solids with an aqueous basic solution comprises conducting the oxidation in the presence of a catalyst comprising a USA Extraction of antimony from antimony As I mentioned previously, acidic leaches pull heavy metals out of your sulfides like lead, arsenic, antimony, etc You end up with a hazardous waste mess that you cant get rid of cheaply, and depending on your sulfide mix, you may have difficulty recovering the precious metal values from the solution Roasting or smelting might be done on Sulfides Gold Recovery Methods ICMJ's Mining
List Sulphide Minerals 911 Metallurgist
Stibnite, Gray Antimony or Antimony Glance Bismuthinite Bi2S3 — Color, leadgray, to tinwhite, may have yellowish or varied tarnish; powder, gray; luster, metallic; H = 2; G = 64 to 65; cleavage, good; melts very easily Bismuthinite is an ore of the metal bismuth, but is found mostly in complex mixtures of ores of silver, cobalt, gold Click here👆to get an answer to your question ️ An ore contains arsenic and antimony as impurities How are they removed during the process of roasting?An ore contains arsenic and antimony as impurities