Process for treating an organic phase containing iron chloride, molybdenum chloride and HCl

US4332684A · kind A · utility

Assignee

• Metallurgie Hoboken-Overpelt · BE

Inventors

• Achille De Schepper · Kasterlee, BE
• Marc Coussement · Hove, BE

Key dates

• Filing date: Jul 21, 1980
• Grant date: Jun 1, 1982
• Expiry date: Jul 21, 2000

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P10/20
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

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 such a quantity of water 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 such a quantity of water that most of the molybdenum contained therein is re-extracted. This two-step re-extraction process permits obtaining a high reextraction yield for both molybdenum and iron, while ensuring the production of a concentrated eluate.