Liquid purification or separation – With alarm – indicator – register – recorder – signal or... – Responsive to fluid flow
Patent
1973-08-03
1977-11-01
Bascomb, Jr., Wilbur L.
Liquid purification or separation
With alarm, indicator, register, recorder, signal or...
Responsive to fluid flow
210 22R, 210 59, 210 67, B01D 1100
Patent
active
040564665
ABSTRACT:
A sludge, or other material containing solid matter and bound and unbound water, is dewatered by admixing the sludge with an amine having an inverse critical solution point with water, always maintaining the temperature of the resulting slurry below the inverse critical solution temperature, and thereafter separating the solid matter from the resulting single phase liquid.The single phase liquid is then heated to a temperature above the inverse critical solution point to form an amine phase and a water phase, after which the water phase is separated from the amine phase. The liquid-solid separation rate is significantly increased by preventing the slurry temperature from rising above the inverse critical solution temperature during mixing and separation.
REFERENCES:
patent: 2967825 (1961-01-01), Baniel
patent: 3088909 (1963-05-01), Davison et al.
patent: 3365395 (1968-01-01), McDonald
Zeitoun et al., "Solvent Extraction of Secondary Waste Water Effluents," WPCFJ, Apr. 1966, pp. 544-554.
Merck Index, 6th Edition, 1952, p. 972.
Bascomb, Jr. Wilbur L.
Hruskoci Peter A.
Resources Conservation Co.
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