Method of purifying neutral organophosphorus extractants

Patent · Tue May 03 00:00:00 EDT 1988

OSTI ID:7031112

Horwitz, E P; Gatrone, R C; Chiarizia, R

A method of removing acidic contaminants, present in a salt or acid form, from neutral mono and/or bifunctional organophosphorous extractants is described comprising: contacting the extractant with a macroporous strong acid cation exchange resin in the H/sup +/ state to form a first mixture, maintaining the contact for a period time and at a temperature sufficient to convert the salt form of the acidic contaminant into the acid form, contacting the first mixture with a macroporous strong base anion exchange resin in the OH/sup -/ state to form a second mixture, maintaining the contact for a period of time and at a temperature sufficient for the anion resin to take up the acid form of the contaminant from the mixture, and separating the extractant from the resins containing the contaminants, thereby removing the acidic contaminants from the extractant.

• Assignee: Dept. of Energy, Washington, DC
• Patent Number(s): US 4741857
• OSTI ID: 7031112
• Resource Relation: Patent File Date: Filed date 6 Oct 1986
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
ORGANIC PHOSPHORUS COMPOUNDS
PURIFICATION
SEPARATION PROCESSES
ANIONS
IMPURITIES
ION EXCHANGE MATERIALS
MIXING
PHOSPHORUS COMPOUNDS
REMOVAL
RESINS
CHARGED PARTICLES
IONS
MATERIALS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
PETROCHEMICALS
PETROLEUM PRODUCTS
POLYMERS
400201* - Chemical & Physicochemical Properties