| 摘要 |
This invention relates to processes for the recovery of vanadium and optionally other metal values from vanadium-bearing materials, especially mineral ores such as titaniferous magnetites, and industrial wastes such as iron ores slag and spent sulphuric acid catalyst. The method of the invention utilises leaching with polycarboxylic organic acid. In a preferred embodiment, the organic acid is citric acid or tartaric acid. The process may be applied to heap leaching. |
