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:
Sep. 20, 1983
Filed:
Mar. 09, 1981
Michel Forster, Valence, FR;
Adrien Jaouen, Champigny, FR;
Alain Jorda, Massy, FR;
Pierre Rampin, Valence, FR;
Commissariat a l'Energie Atomique, Paris, FR;
Abstract
The invention relates to a process for monitoring the functioning of a liquid-liquid extraction column in which non-mixing liquids L1 and L2 circulate in counter-current. To this end, an ultrasonic signal is emitted at point Pn of the decanter and this ultrasonic signal is detected at Point P'n located at distance H from point Pn and the time t.sub.n taken by this signal to cover distance H is determined; the speed v.sub.2 of propagation of an ultrasonic signal in the liquid medium near point Pn, preferably constituted by pure liquid L2, is also determined, as well as the speed v.sub.1 of propagation of the same ultrasonic signal in the liquid medium near the point P'n, i.e. in the liquid L1, and the level h of the interphase in the decanter is determined by using the formula: ##EQU1##