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:
Mar. 17, 1992
Filed:
Aug. 14, 1990
Noell GmbH, Wurzburg, DE;
Abstract
A process for the treatment of waste water containing boron compounds and radionuclides. The waste water is essentially vaporized until dry to yield a concentrate. Boric acid ester and an azeotropic mixture of water and alcohol are produced in a reaction by the addition of an excess of a long chain primary alcohol, e.g. butyl alcohol, to the concentrate. The azeotropic mixture, excess alcohol and boric acid ester are then separated from the concentrate by distilling. The non-radioactive components are then separated from the concentrate leaving behind a radioactive residue, which can be safely disposed of. The azeotropic mixture is then separated back into water and alcohol, and the boric acid ester is saponified back into boric acid and alcohol. The alcohol and boric acid are recycled back into the treatment process and to the nuclear reactor.