Dow Global Technolgoies LLC

Stephanie L Hughes

Ian A Tomlinson

H Craig Silvis

Michael K Poindexter

Susan J Babinec

Paul Aaron Gillis

Harpreet Singh

Cole A Witham

Puspendu Deo

Nicole L Wagner

Carol E Mohler

Domonique Downing

Jason S Moore

Douglas A Brune

Jaime L Curtis-Fisk

Thomas L Sanders, Jr

Janardhanan S Rajan

Andrew G Talik

Thomas L Sanders

Mark Newsham

Carlton L Gaupp

The present invention relates to a method of dewatering an aqueous mineral suspension comprising introducing into the suspension a flocculating system comprising a mixture of polyethylene glycol and polyethylene oxide polymers, in particular a mixture of one or more low molecular mass polyethylene glycol with one or more high molecular mass polyethylene oxide. Said mixture of polyethylene glycol and polyethylene oxide polymers is useful for the treatment of suspensions of particulate material, especially waste mineral slurries. The invention is particularly suitable for the treatment of tailings and other waste material resulting from mineral processing, in particular, the processing of oil sands tailings.

Flocculation of high-solids mineral slurries

Growing community of inventors

Beaverton, MI, United States of America

Stephanie L Hughes