PREPARATION OF ALKYL PYROPHOSPHATE EXTRACTANTS
Abstract
A process for providing superior solvent extractants for metal recovery processes is given wherein the extractant comprises an alkyl pyrophosphoric acid ester dissolved in an organic solvent diluent. Finely divided solid P/sub 2/O/ sub 5/ is slurried in an organic solvent-diluent selected from organic solvents such as kerosene, benzene, chlorobenzene, toluene, etc. An alcohol selected from the higher alcohols having 4 to 17 carbon atoms. e.g.. hexanol-1. heptanol-3, octanol-1. 2.6-dimethyl-heptanol-4, and decanol-1, is rapidly added to the P/sub 2/O/sub 5/ slurry in the amount of about 2 moles of alcohol to 1 mole of P/sub 2/ O/sub 5/. The temperature is maintained below about 110 deg C during the course of the P/sub 2/O/sub 5/-alcohol reaction. An alkyl pyrophosphate extractant compound is formed as a consequence of the reaction process. The alkyl pyrophosphate solvent-diluent extractant phase is useful in solvent extraction metal recovery processes.
- Inventors:
- Issue Date:
- OSTI Identifier:
- 4141018
- Patent Number(s):
- 2947774
- Assignee:
- U.S. Atomic Energy Commission
- Patent Classifications (CPCs):
-
C - CHEMISTRY C07 - ORGANIC CHEMISTRY C07F - ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- NSA Number:
- NSA-14-025579
- Resource Type:
- Patent
- Resource Relation:
- Other Information: Orig. Receipt Date: 31-DEC-60
- Country of Publication:
- United States
- Language:
- English
- Subject:
- CHEMISTRY; ALCOHOLS; ALKYL RADICALS; BENZENE; CHEMICAL REACTIONS; ESTERS; HEPTANE; HEXYL RADICALS; HYDROCARBONS; METALS; METHYL RADICALS; OCTANOL; PHOSPHORIC ACID; PHOSPHORUS OXIDES; PREPARATION; RECOVERY; SLURRIES; SOLVENT EXTRACTION; SOLVENTS; TOLUENE
Citation Formats
Levine, C A, Skiens, W E, and Moore, G R. PREPARATION OF ALKYL PYROPHOSPHATE EXTRACTANTS. United States: N. p., 1960.
Web.
Levine, C A, Skiens, W E, & Moore, G R. PREPARATION OF ALKYL PYROPHOSPHATE EXTRACTANTS. United States.
Levine, C A, Skiens, W E, and Moore, G R. Mon .
"PREPARATION OF ALKYL PYROPHOSPHATE EXTRACTANTS". United States.
@article{osti_4141018,
title = {PREPARATION OF ALKYL PYROPHOSPHATE EXTRACTANTS},
author = {Levine, C A and Skiens, W E and Moore, G R},
abstractNote = {A process for providing superior solvent extractants for metal recovery processes is given wherein the extractant comprises an alkyl pyrophosphoric acid ester dissolved in an organic solvent diluent. Finely divided solid P/sub 2/O/ sub 5/ is slurried in an organic solvent-diluent selected from organic solvents such as kerosene, benzene, chlorobenzene, toluene, etc. An alcohol selected from the higher alcohols having 4 to 17 carbon atoms. e.g.. hexanol-1. heptanol-3, octanol-1. 2.6-dimethyl-heptanol-4, and decanol-1, is rapidly added to the P/sub 2/O/sub 5/ slurry in the amount of about 2 moles of alcohol to 1 mole of P/sub 2/ O/sub 5/. The temperature is maintained below about 110 deg C during the course of the P/sub 2/O/sub 5/-alcohol reaction. An alkyl pyrophosphate extractant compound is formed as a consequence of the reaction process. The alkyl pyrophosphate solvent-diluent extractant phase is useful in solvent extraction metal recovery processes.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1960},
month = {8}
}