The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 19, 1992
Filed:
Nov. 14, 1990
Applicant:
Inventor:
Graham V Hutson, Gosforth, GB;
Assignee:
British Nuclear Fuels plc, Risley, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G21F / ; C02F / ;
U.S. Cl.
CPC ...
252631 ; 210759 ; 210763 ;
Abstract
Alkyl phosphates, which may be dissolved in a hydrocarbon solvent can be destroyed in a two-stage process, the first stage involving hydrolysis with concentrated alkali to effect partial de-alkylation of the alkyl phosphate the second stage involving catalytic oxidation of the de-alkylated phosphate with hydrogen peroxide. This results in improved safety as oxidation takes place after much of the hydrocarbon has been removed at the first stage.