Extraction of copper with 2-hydroxy-5-nonylbenzophenone oxime and the catalytic role of Bis(2-ethylhexyl)phosphoric acid

Journal Article · Tue Feb 01 00:00:00 EST 1983 · Ind. Eng. Chem. Fundam.; (United States)

OSTI ID:5708646

Isao, K; Tsutao, O

The equilibrium performance and kinetic behavior of copper extraction from nitrate media were studied with two organic solutions, one containing 2-hydroxy-5-nonylbenzophenone oxime and the other containing the oxime together with bis(2-ethylhexyl)phosphoric acid (HDEHP). HDEHP, added in quantities up to 10 mol/m/sup 3/ in xylene and 1 mol/m/sup 3/ in n-heptane diluents, has been found to have little influence on the extraction performance of th oxime. The addition of small amounts of HDEHP results in a considerable increase in both extraction and stripping rates, but the data in xylene and n-heptane show different trends. A scheme for the reaction between the copper and the oxime containing HDEHP is proposed which interprets HDEHP as a phase-transfer catalyst.

• Research Organization: Department of Chemical Engineering, Osaka University, Toyonaka 560
• OSTI ID: 5708646
• Journal Information: Ind. Eng. Chem. Fundam.; (United States), Vol. 22:1
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
BENZOPHENONE
SOLVENT PROPERTIES
COPPER
SOLVENT EXTRACTION
HDEHP
OXIMES
PHOSPHORIC ACID
CATALYSIS
CHEMICAL REACTION KINETICS
HEPTANE
NITRATES
ORGANIC SOLVENTS
XYLENES
ALKANES
AMINES
AROMATICS
ELEMENTS
ESTERS
EXTRACTION
HYDROCARBONS
HYDROGEN COMPOUNDS
HYDROXY COMPOUNDS
INORGANIC ACIDS
KETONES
KINETICS
METALS
NITROGEN COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC PHOSPHORUS COMPOUNDS
OXYGEN COMPOUNDS
PHOSPHORIC ACID ESTERS
REACTION KINETICS
SEPARATION PROCESSES
SOLVENTS
TRANSITION ELEMENTS
400105* - Separation Procedures
400301 - Organic Chemistry- Chemical & Physicochemical Properties- (-1987)