Structure and properties of the slags of continuous converting of copper nickel-containing mattes and concentrates: II. Effect of the SiO2/CaO ratio on the structure and liquidus temperature of the slags
Abstract
The structure and liquidus temperature of the SiO2-CaO-Al2O3-FeOx-Cu2O-NiO slags that form during continuous converting of copper mattes and concentrates into blister copper are analyzed. The slag melt compositions are varied over a wide SiO2/CaO range. The slags are studied by X-ray diffraction, scanning electron microscopy, and electron-probe microanalysis. The liquidus temperature of the slags is determined by differential thermal analysis. It is found that, depending on the SiO2/CaO ratio, the structure and liquidus temperature of the slags change and the forms of copper in a slag also change. The SiO2/CaO range in a slag is recommended for the process of continuous converting of a copper nickel-containing sulfide raw materials.
- Publication:
-
Russian Metallurgy
- Pub Date:
- March 2012
- DOI:
- 10.1134/S003602951203010X
- Bibcode:
- 2012RuMet2012..171P
- Keywords:
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- Liquidus Temperature;
- RUSSIAN Metallurgy;
- Beryllium Oxide;
- Copper Matte;
- Blister Copper