Extraction of Copper from the Precipitate Obtained by Purifying the Wash Water Formed in Refining Crude TiCl₄

Abstract:

Copper is used to remove vanadium from crude TiCl₄ in titanium sponge production which produces large wash water containing vanadium and copper. The precipitate containing copper and vanadium was formed from the wash water by oxidization and neutralization treatment. The vanadium in the precipitate can be recovered by NaOH leaching, after that, the cake containing copper was formed. The leaching of copper from the cake was investigated by H₂SO₄. Under the optimum leaching conditions (58% H₂SO₄ leaching for 30 min. at room temperature with a pulp density of 28.6%), the copper leaching could reach 90.4%.

• Periodical: Advanced Materials Research (Volumes 955-959)
• Pages: 2790-2793
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.955-959.2790
• Online since: June 2014
• Authors: Jian Ming Pan, Qiu Xiang Liu, Ming Yu Wang*, Xue Wen Wang
• Keywords: Copper Extraction, TiCl₄ Purification, Vanadium Removal

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