C - Chemistry – Metallurgy – 22 – B
Patent
C - Chemistry, Metallurgy
22
B
53/114, 53/146
C22B 47/00 (2006.01) C01G 39/00 (2006.01) C01G 49/00 (2006.01) C21B 15/00 (2006.01) C22B 3/38 (2006.01)
Patent
CA 1141967
ABSTRACT OF THE DISCLOSURE A process for re-extracting trivalent iron and hexavalent molybdenum from an organic phase containing an organophosphoric compound. In a first step the organic phase is contacted with a quantity of water such that most of the iron and only a minor part of the molybdenum are re-extracted. In a second step the partially unloaded organic phase is contacted with a quantity of water such that most of the molybdenum contained therein is re-extracted. This two-step re-extraction process results in a high re-extraction yield for both molybdenum and iron, while ensuring the production of a concentrated eluate.
356347
Coussement Marc
de Schepper Achille
Macrae & Co.
Metallurgie Hoboken-Overpelt
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