【摘 要】
：
The high temperature chloridizing roasting is one of useful methods to separate nonferrous metals from pyrite cinder and metallurgy slag.However, as one kind of main nonferrous metals in pyrite cinder
【机 构】
：
School of Iron and Steel,Soochow University,178 Ganjiang East Road,Suzhou 215021,China
【出 处】
：
The 6th International Conference on Hydrometallurgy(第六届国际湿法冶
论文部分内容阅读
The high temperature chloridizing roasting is one of useful methods to separate nonferrous metals from pyrite cinder and metallurgy slag.However, as one kind of main nonferrous metals in pyrite cinder and metallurgy slag, the occurrence of lead is complicated and its chlorination behavior is not demonstrated.In the present study, chlorination behaviors ofPbO, PbS and PbSiO3 at the temperature range of 1025-1175C in air by simulating the chloridizing roasting process of pyrite cinder have been investigated.This study found that it is easier to remove PbS and PbO than PbSiO3.If enough chloride additives were added, the differences of Pb removal rates among PbO, PbS and PbSiO3 would disappear.In addition, the presence of CaO dramatically increases Pb removal.SiO2 influences the Pb removal positively from PbSiO3 and negatively from PbO.A small amount of A12O3 has almost no effect of Pb removal from PbO and PbSiO3, but the high dosage of A12O3 dccrcases Pb removal from them.In addition, a small amount of MgO favors to Pb removal while the high dosage of MgO harm to Pb removal.Fe3O4 influences the Pb removal rate from PbO and PbSiO3 positively.
其他文献
In this paper, an environment-friendly hydrometallurgical process has been proposed for the recovery of high valued metals (nickel and cobalt) from spent lithium-ion batteries.Firstly, Ni, Co, Mn and
Most of copper, lead, antimony, tellurium and precious metals in copper anode slime were enriched in residue using an alkaline smelting-leaching process.In this paper, the copper and tellurium were fi
Diagnostic leaching is a technique used in gold ore processing to determine the gold deportment of an ore, i.e.the distribution of gold between the different mineral phases composing the ore (Lorenzen
Since 1952, many researches were focused on the recovery of uranium from wet phosphoric acid (WPA) since this unconventional resource was economically attractive as a large part of the capital expendi
The development of projects for the recovery of uranium from unconventional resources has gained considerable importance.Phosphate rocks represent a suitable alternative source for uranium production
Niobium and tantalum are strategic metals for electronic and alloys industries but the development of efficient, economic and environmentally friendly processes to recover them from ores is a challeng
Wet Phosphoric Acid (WPA), whose concentration is typically ranging between 4 and 7 mol.L-1, is a strategic source of uranium that can be exploited in spite of its low uranium content (0.1-0.4 g.L-1)
As one of the most promising gold-leaching alternatives to cyanide, thiourea has been widely studied and applied for gold leaching from different aurous minerals due to its fast leaching kinetics and
Currently, three methods were employed for disposal of arsenic in effluent streams including: (i) Neutralization with the lime; (ii) Co-precipitation with ferric; and (iii) the synthesis of scorodite.
Acid mine drainage (AMD) contains high concentration of metal ions, and it will be easily formed in the presence of Acidithiobacillus ferrooxidans(Li et al., 2009).Quorum sensing is a cell-to-cell com