Liquid purification or separation – With alarm – indicator – register – recorder – signal or... – Responsive to fluid flow
Patent
1974-05-28
1976-05-04
Hart, Charles N.
Liquid purification or separation
With alarm, indicator, register, recorder, signal or...
Responsive to fluid flow
210 67, 210 69, 106306, 423518, F26B 700
Patent
active
039546098
ABSTRACT:
A process is disclosed whereby aqueous slurries of particulate solid materials having a relatively low solids content are converted to aqueous slurries having a relatively high solids content. The process includes deflocculating a mixture comprising a particulate solid material and water with the aid of a chemical deflocculating agent to form a first aqueous slurry, partially dewatering the first aqueous slurry in, for example, a pressure filter to form a cake having a reduced water content as compared to the mixture and subjecting the cake to mechanical work which comprises at least one cycle of applying a stress to the cake and relaxing the applied stress to form a second aqueous slurry having an increased solids content as compared to the first aqueous slurry.
REFERENCES:
patent: 2345311 (1944-03-01), Wilson
patent: 3615768 (1971-10-01), Winyall
patent: 3674529 (1972-07-01), Toms
Castel Benoit
English Clays Lovering Pochin & Company Limited
Hart Charles N.
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