The Effects of Thermal Pretreatment on Leaching of Yunnan Ilmenite with Hydrochloric Acid
| Autor: | Jun-Yi Xiang, Song-Li Liu |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
Materials science
Metallurgy technology industry and agriculture Metals and Alloys chemistry.chemical_element Hydrochloric acid 02 engineering and technology Hematite engineering.material Condensed Matter Physics 020501 mining & metallurgy chemistry.chemical_compound Hydrolysis 0205 materials engineering chemistry Mechanics of Materials Rutile visual_art Materials Chemistry visual_art.visual_art_medium engineering Leaching (metallurgy) Dissolution Ilmenite Titanium |
| Zdroj: | Metallurgical and Materials Transactions B. 47:1334-1339 |
| ISSN: | 1543-1916 1073-5615 |
| DOI: | 10.1007/s11663-015-0539-z |
| Popis: | The effects of thermal pretreatment on the leaching of Yunnan ilmenite ores were investigated from two aspects: the dissolution of iron and titanium, and the proportion of fine precipitations. The results indicate that high-temperature reduction or oxidization produces phase and structure transformations on ilmenite that facilitate the dissolution of iron, reduce the dissolution of titanium, and facilitate the hydrolysis of dissolved titanium. The results further indicate that oxidation at temperatures ranging from 1023 K (750 °C) to 1273 K (1000 °C) can significantly decrease the proportion of fine products. It is believed that the structure of oxidized ilmenite played an important role in minimizing the proportion of fine materials. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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