Method for separating mono- and di-octylphenyl phosphoric acid esters

Patent · Sat Jan 01 00:00:00 EST 1977

OSTI ID:862932

Arnold, Jr., Wesley D. ^[1]

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1. (Oak Ridge, TN)

A method for separating mono-octylphenyl phosphoric acid ester and di-octylphenyl phosphoric acid ester from a mixture thereof comprises reacting the ester mixture with a source of lithium or sodium ions to form a mixture of the phosphate salts; contacting the salt mixture with an organic solvent which causes the dioctylphenyl phosphate salt to be dissolved in the organic solvent phase and the mono-octylphenyl phosphate salt to exist in a solid phase; separating the phases; recovering the phosphate salts from their respective phases; and acidifying the recovered salts to form the original phosphoric acid esters.

• Research Organization: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
• Assignee: United States of America as represented by United States Energy (Washington, DC)
• Patent Number(s): US 4051202
• OSTI ID: 862932
• Country of Publication: United States
• Language: English

Related Subjects

method
separating
mono-
di-octylphenyl
phosphoric
acid
esters
mono-octylphenyl
ester
mixture
comprises
reacting
source
lithium
sodium
form
phosphate
salts
contacting
salt
organic
solvent
causes
dioctylphenyl
dissolved
phase
exist
solid
phases
recovering
respective
acidifying
recovered
original
acid ester
solvent phase
salt mixture
organic solvent
phosphoric acid
solid phase
comprises reacting
acid esters
respective phase
separating mono-
di-octylphenyl phosphoric
/999/987/