Slag–Copper Equilibria of Selected Trace Elements in Black Copper Smelting. Part I. Properties of the Slag and Chromium Solubility
Research output: Contribution to journal › Article › Scientific › peer-review
|Journal||Mineral Processing and Extractive Metallurgy Review|
|Publication status||Published - 1 Jan 2019|
|MoE publication type||A1 Journal article-refereed|
The solubility of chromium in alumina- and lime-containing (≈5 wt% Al 2 O 3 and 0- ≈ 10 wt% CaO) iron silicate slags has been measured at 1,300°C. In order to avoid contamination and the effects of further elements in the slag, the measurements were carried out at silica saturation. The solubility of chromium was a function of oxygen partial pressure. At high oxygen partial pressures P O2 ≈ 10 −5 atm, the solubility was about 0.15 wt% (Cr) and it increased to about 0.3 wt% (Cr) in reducing conditions of p O2 ≈ 10 −10 atm. Alumina and lime seemed to increase the solubility slightly.
- alumina, chromite, Copper scrap, iron silicate slag, lime, WEEE