High-temperature extraction of rhenium from sulfuric acid solutions with trialkylamines

Journal Article · Sun Dec 01 04:00:00 EST 1985 · J. Appl. Chem. USSR (Engl. Transl.); (United States)

OSTI ID:7150982

Gladyhev, V P; Andreeva, N N; Kim, E M; Kovaleva, S V

This paper attempts to determine the possibility of conducting high-temperature extraction of rhenium from sulfuric acid solutions with trialkylamines (TAA) using higher hydrocarbon-paraffin mixtures as the diluent of the extraction system. Substitution of kerosene by paraffin in the extraction system would permit decreasing the danger of fire and explosions during he extraction process. In extracting rhenium from industrial solutions with a melt of higher paraffins containing TAA and alcohols, the extraction system can be continously heated in heat exchangers through which washing sulfuric acid passes and then goes to the extractor. This permits utilizing the heat and decreases the temperature of the solutions for extraction to the optimum temperatures. Extraction of rhenium with a melt of trioctylamine in paraffin obeys the same mechanisms as high-temperature extraction of ruthenium (IV) by amines in kerosene and aromatic hydrocarbons.

• Research Organization: Moscow Institute of Steel and Alloys
• OSTI ID: 7150982
• Journal Information: J. Appl. Chem. USSR (Engl. Transl.); (United States), Journal Name: J. Appl. Chem. USSR (Engl. Transl.); (United States) Vol. 58:7,PT.1; ISSN JAPUA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ALKANES
AMINES
ELEMENTS
EXTRACTION
FEASIBILITY STUDIES
FUELS
HYDROCARBONS
HYDROGEN COMPOUNDS
INORGANIC ACIDS
KEROSENE
LIQUID FUELS
MEDIUM TEMPERATURE
METALS
ORGANIC COMPOUNDS
ORGANIC SOLVENTS
PETROLEUM PRODUCTS
PLATINUM METALS
RHENIUM
RUTHENIUM
SEPARATION PROCESSES
SOLVENT EXTRACTION
SOLVENT PROPERTIES
SOLVENTS
SULFURIC ACID
TRANSITION ELEMENTS