Liquid purification or separation – Processes – Making an insoluble substance or accreting suspended...
Patent
1993-02-04
1994-02-15
McCarthy, Neil M.
Liquid purification or separation
Processes
Making an insoluble substance or accreting suspended...
210732, 210734, 423121, 423122, 423127, C02F 156
Patent
active
052863913
ABSTRACT:
A process for improving the flocculation of suspended solids in a Bayer process liquor in a primary settler stage. The method includes the step of adding to a primary settler feed from about 1 to about 100 parts per million of a composition including a non-inverted, water-continuous polymer, said polymer being hydrolyzable in a Bayer process liquor to an acid form, said acid form being an active red mud flocculant.
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Malito John T.
Strominger Michael G.
Barrett Joseph B.
McCarthy Neil M.
Miller Robert A.
Nalco Chemical Company
Norek Joan I.
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