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:
Aug. 27, 1991
Filed:
Nov. 13, 1989
Applicant:
Inventor:
Jiann-Yang Hwang, Houghton, MI (US);
Assignee:
Board of Control of Michigan Technological University, Houghton, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ; C02F / ; C02F / ;
U.S. Cl.
CPC ...
210634 ; 210222 ; 210511 ; 210695 ; 252 6251 ; 252 6256 ; 427127 ;
Abstract
Particles of a magnetic material coated with a hydrophobic surfactant are dispersed in an organic solvent extractant to produce a magnetic solvent extractant which can be used in solvent extraction processes. Phase separation of an organic phase, carrying the component to be separated, from the aqueous phase can be accelerated by applying a magnetic field to the organic phase. After removal of the organic phase, a magnetic field can be applied to the aqueous phase to remove any residual organic phase and thereby enhance the degree of separation.