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Title: 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:
; ;
Publication Date:
Research Org.:
Originating Research Org. not identified
OSTI Identifier:
4141018
Patent Number(s):
US 2947774
Assignee:
U.S. Atomic Energy Commission DTIE; NSA-14-025579
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 = {Mon Aug 01 00:00:00 EDT 1960},
month = {Mon Aug 01 00:00:00 EDT 1960}
}