Method of flocculating clay-containing waste slurries
摘要
A process for improving a solid/liquid separation of tails from acidulated or non-acidulated liquors obtained by leaching phosphate ores or waste comprising: adding a mixture of dissolved polymers of hydroxyalkyl cellulose and polyoxyethylene into an aqueous slurry of leached phosphate wastes to obtain flocks of phosphatic clay wastes; allowing said flocks to settle into an agglomerated mass; decanting luqiid from insoluble residues to obtain tails having a solid content from about 55 to 70%.
申请公布号
US5104551(A)
申请公布日期
1992.04.14
申请号
US19900596669
申请日期
1990.10.11
申请人
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE INTERIOR
发明人
DAVIS, JANICE G.;WILEMON, GARY M.;SCHEINER, BERNARD J.