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:
Jun. 23, 1981
Filed:
Aug. 10, 1979
Applicant:
Inventor:
Lee F Robinson, London, GB;
Assignee:
RTL Contactor Holding S.A., , CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B03B / ; B03B / ;
U.S. Cl.
CPC ...
209-9 ; 209155 ; 209207 ; 208 / ; 196 1452 ;
Abstract
A process is described for the separation of impurities from an aqueous slurry, dispersion or suspension. Streams of aqueous phase and an organic phase comprising a non-polar organic liquid are passed through a multi-compartment rotary contactor. A collector reagent is present during at least part of the passage of the streams through the contactor and gives the impurities a hydrophobic surface. The phases are contacted by continuously bringing the aqueous and solvent phases into contact with one another while maintaining an interface between the two phases. The two phases and the interfacial layer containing at least some of the impurities are independently withdrawn.