Abstract: A biodegradable floatation aid for use in the froth floatation process for ore beneficiation has been developed to replace the current petroleum based hydrocarbons. The product described is an ester of C-8 through C-20 alcohols and C-2 through C-12 diols or triols, reacted with C-12 through C-22 carboxylic acids or C-2 through C-36 dicarboxylic acids.
Type:
Grant
Filed:
November 3, 2011
Date of Patent:
August 13, 2013
Assignee:
Bastech, LLC
Inventors:
Thomas Crane Friel, Debbie Tulkoff Petree