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:
Dec. 19, 1989
Filed:
Feb. 08, 1980
Applicant:
Inventors:
Jean Charpin, Paris, FR;
Andre Grangeon, Valreas, FR;
Francis Pejot, Piolenc, FR;
Pierre Plurien, Palaiseau, FR;
Bernard Rasneur, Le Mesnil St-Denis, FR;
Serge Richard, Pont St-Esprit, FR;
Rene Veyre, Montelimar, FR;
Assignee:
Commissariat A L'Energie Atomique, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ; B01D / ; B22F / ; B22F / ; B22F / ;
U.S. Cl.
CPC ...
55158 ; 55 16 ; 2523157 ; 264-05 ; 264 42 ; 264 43 ; 264 451 ; 264 48 ; 264 60 ; 264 66 ; 423625 ; 423626 ; 423629 ; 501 80 ; 501 85 ; 501127 ; 501153 ; 428566 ; 4283077 ; 4283122 ; 4283128 ; 4283166 ; 4283188 ; 4283191 ;
Abstract
The invention relates to a method of manufacturing permeable mineral membranes. The method of the invention is characterized in that a thin layer of gel of peptised hydroxide of at least aluminum is deposited on a permeable perous substrate and the resulting membrane is dried and fired at a temperature between 500.degree. and 1100.degree. C. The resulting membranes can be used for isotopic separation of gases or for filtration and ultrafiltration.