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:
Jul. 13, 1976
Filed:
Feb. 19, 1974
Bernard H Lucas, Ottawa, CA;
Gordon M Ritcey, Ottawa, CA;
Canadian Patents and Development Limited, Ottawa, CA;
Abstract
In solvent-in-pulp extractions where aqueous leach slurries containing dissolved metal values and gangue particles of the silica, sericite or sulphide types are contacted with organic amine extractants, the loss of amine extractant to the solids is decreased sharply by pretreating the slurries with organic non-ionic hydrophilic material which is adsorbed by the gangue solids and decreases the affinity of the gangue solids for the amine. A combination of inexpensive materials has been found to be most effective. Crud formation is substantially avoided and the separation of phases is facilitated.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile