Pressure leaching of converter vanadium slag with waste titanium dioxide
| Autor: | Zhuo-lin Liu, Yan Liu, Lv Guozhi, Ying Zhang, Ting-an Zhang, Guo-Quan Zhang |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
Anatase
Materials science 020502 materials Metallurgy Metals and Alloys chemistry.chemical_element Vanadium 02 engineering and technology Manganese engineering.material 021001 nanoscience & nanotechnology Condensed Matter Physics chemistry.chemical_compound 0205 materials engineering chemistry Titanium dioxide Materials Chemistry engineering Leaching (metallurgy) Physical and Theoretical Chemistry 0210 nano-technology Ilmenite Titanium Magnetite |
| Zdroj: | Rare Metals. 35:576-580 |
| ISSN: | 1867-7185 1001-0521 |
| DOI: | 10.1007/s12598-014-0225-3 |
| Popis: | The process of pressure leaching the converter vanadium slag with waste titanium dioxide without roasting was studied. Mineralogy analysis indicates that the converter vanadium slag contains mainly three mineral phases: magnetite, titanium magnetite, and silicate phase. Vanadium is in combination with iron, titanium, manganese, aluminum, and silicon. The impacts of leaching temperature, leaching time, stirring speed, liquid-to-solid ratio, and initial leaching agent concentration were investigated on the waste titanium dioxide leaching process. The results indicate that under the optimal conditions, the vanadium and the iron leaching rates are 96.85 % and 93.50 %, respectively, and the content of titanium is 12.6 % in the residue. The main mineral phases for the residues under the optimal operation conditions are quartz, ilmenite, anatase, and silicate phase, and the residues can be reused as the extraction of titanium raw materials for titanium dioxide production technology by the sulfate method. |
| Databáze: | OpenAIRE |
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