roasting of sulphide materials r

2022-11-16T06:11:18+00:00

ROASTING OF SULFIDE MINERALS Wiley Online Library

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, 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 reactionsA process for roasting zinc/lead sulphide materials, comprising forming substantially spherical pellets composed predominantly of lead sulphide, coating these with predominantly zinc sulphide material, and then roasting the coated pellets in a roasting apparatus to effect oxidation of sulphide, predominantly to oxideUSA Roasting of sulphide materials Google PatentsA process for roasting zinc/lead sulphide materials, comprising forming substantially spherical pellets composed predominantly of lead sulphide, coating said pellets with predominantly zinc sulphide material, and then roasting the coated pellets in a roasting apparatus to effect oxidation of sulphide, predominantly to oxide 2 The process according to claim 1, wherein Roasting of sulphide materials Metallurgical Processes Ltd

ZAB Roasting of sulphide materials Google Patents

roasting sulphide materials sulphide materials Prior art date Application number ZAA Other languages English (en) Inventor James Anthony Charles Anthony Charles James Original Assignee Isc Smelting Metallurgical Dev Co Metallurgical Processes Ltd Priority date (The priority date is an assumption and is not a legal conclusion Google has not Roasting of sulphide materials Info Publication number CAA CAA CA330,693A CAA CAA CA A CA A CA A CA A CA A CA A CA A CA A CA A Authority CA Canada Prior art keywords sulphide predominantly lead roasting zinc Prior art date Legal CAA Roasting of sulphide materials Google PatentsRoasting of sulphide materials Download PDF Info Publication number USA USA US06/054,872 USA USA US A US A US A US A US A US A US A US A US A Authority US United States Prior art keywords sulphide roasting zinc lead USA Roasting of sulphide materials Google Patents

Roasting Of Sulphide Materials

This is done in case of sulphide ores so as to remove sulphur in the form of SO 2 and to obtained corresponding metal oxidegive reason why roasting is carried out on sulphide ores Roasting Of Sulphide Materials To roast sulfide ores, it takes a good red heat and a good amount of air, but not too hot as you don't want to melt them As previously noted, materials 23/06/2021 Under the circumstances, the only alternative seems to be the conversion of sulfide concentrates into oxides by dead roasting [1–3], which can be easily reduced with carbon (production of lead and zinc) or into mixed oxide and sulfate by partial roasting and sintering, which can be dissolved in dilute sulfuric acid, and the resultant solution is subjected to Roasting of Sulfide Minerals SpringerLinkThis is done in case of sulphide ores so as to remove sulphur in the form of SO 2 and to obtained corresponding metal oxidegive reason why roasting is carried out on sulphide ores Roasting Of Sulphide Materials To roast sulfide ores, it takes a good red heat and a good amount of air, but not too hot as you don't want to melt them As previously noted, materials Roasting Of Sulphide Materials

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 Similar problems exist when treating roasted products derived from coarser sulphide materials which have been decrepitated during the roasting process THE PRIOR ART Various methods have been proposed and tested for producing coarse powder, roasted products from finely divided material, of which methods pelletizing and briquetting can be mentioned in particular These ROASTING, COARSENING AND HARDENING OF IRON SULFIDE MATERIALSRoasting, coarsening and hardening of iron sulfide materials Download PDF Info Publication number USA USA USA USA Roasting, coarsening and hardening of iron

Analytics for US Patent No , Roasting of sulphide

A process for roasting zinc/lead sulphide materials, comprising forming substantially spherical pellets composed predominantly of lead sulphOxidative roasting is the process of converting metallic compounds in waste materials into oxides using oxidants The aim is to obtain oxides to facilitate the next step of smelting Oxidation 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 Roasting an overview ScienceDirect TopicsRoasting of sulphide concentrates, in particular copper and cobalt concentrates from central Africa, is a wellestablished unit operation in the extraction flowsh eet of these elements In a typical coppercobalt production flowsheet shown in Figure 1, the purpose of roasting is to selectively convert the copper and cobalt sulphides into sulphates that are readily leachable Laboratoryscale sulphation roasting testwork for copper

Gold Ore Roasting Techniques Mineral Processing Metallurgy

14/07/2016 The roasting of straight pyritic ores involves the conversion of the iron sulphides to the oxide under oxidizing conditions with the evolution of sulphur dioxide and, to some extent by catalytic action, sulphur trioxide gas also In this chemical change the iron mineral is rendered more or less porous, thereby permitting the dissolution of the contained gold by subsequent Answer (1 of 5): The concentrated ore ( received after crushing and floating) is roasted in a furnace in the presence of a current of air Sulphur is oxidized to SO2 and impurities of arsenous and antimony are removed as volatile oxides The What is roasting of a sulfide ore? QuoraDownload Citation Roasting of Sulfide Minerals In addition to common metals like copper, lead, zinc, and nickel, a number of other metals such as Roasting of Sulfide Minerals

Roasting of Sulphide ore YouTube

04/07/2017 About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy Safety How YouTube works Test new features Press Copyright Contact us Creators 22/11/2017 Sulfatization roasting of refractory copperzinc sulphide raw material is studied Test material chemical and phase compositions are examined Thermodynamic calculations of possible sulfatization reactions are performed Phase transformations, mechanisms of decomposition, and oxidation of sulphide minerals are studied using thermogravimetric and Improvement of Sulfatizing Roasting of Refractory Copper 18/05/2018 In this paper, formation of zinc sulfide species during roasting of ZnO with FeS2 was investigated and its contribution on flotation was illustrated The evolution process, phase and crystal Formation of zinc sulfide species during roasting of