The formation of magnetite in slag from the autogenous smelting of sulphide copper - zinc concentrates
Correlation dependences of magnetite and copper content in slags of products compositions (slag and matte) after autogenous smelting of sulphide copper - zinc concentrates in Vanyukovs furnace were determined by the statistic analysis method. It was defined the higher copper content in matte is, the bigger magnetite share in slag is. In addition Fe/SiO2 and SiO2/CaO ratios influence on magnetite formation. Phase compositions formed during slag cooling are defined by the methods of X-ray diffraction and spectral analyses. It was determined that slag consist of iron silicate phase - Fe2SiO4 fayalite, Fe3O4 magnetite, Ca0.5Fe1.5Si2O6 iron calcium silicate and sulphides. The data about non-ferrous metals states in slag are reported. It was defined magnetite and iron silicate phases contain zinc and copper which concentrations are up to 3.1 - 4.9％ and 0.7 - 0.8％ respectively. Single bulk matte inclusions up to 300 microns in size and minor sulphide crystals formed during its cooling were detected in slag. Copper and lead are dissolved into segregated sulphides and their compositions are similar to sphalerite. Achieved results has been offered to put into operation for parameters optimization of sulphide copper - zinc concentrate autogenous smelting and for losses reduction of non-ferrous metals in slags.
Slag magnetite autogenous smelting sulphide copper - zinc concentrate
Evgeniy Selivanov Roza Gulyaeva Ruslan Zaripov Vyacheslav Belyaev Sergey Krayuhin Stanislav Tyushnyakov
Institute of Metallurgy, Ural Division of the Russian Academy of Sciences, 620016, Russia Sredneuralsky Copper Smelter Plant, 623280, Russia
国际会议
Ninth International Conference on Molten Slags,Fluxes and Salts(第九届国际熔渣、溶剂与熔盐学术会议 MOLTEN12)
北京
英文
1-11
2012-05-27（万方平台首次上网日期，不代表论文的发表时间）