Liquid purification or separation – With alarm – indicator – register – recorder – signal or... – Responsive to fluid flow
Patent
1976-04-15
1979-04-03
Douglas, Winston A.
Liquid purification or separation
With alarm, indicator, register, recorder, signal or...
Responsive to fluid flow
210 34, 210 40, 252412, 252414, 260674SA, 568758, B01D 1506, B01D 1500, B01J 2120, B01J 2938
Patent
active
041476247
ABSTRACT:
An adsorbate is removed from an adsorbent by contacting the adsorbent with a near critical liquid which is a solvent for the adsorbate. The near critical liquid containing the dissolved adsorbate is then subjected to at least partial vaporization to form a vapor in which the adsorbate is substantially less soluble thereby making it possible to remove the adsorbate from the near critical liquid. The vapor is then condensed to restore it to the near critical liquid state wherein it is a solvent for the adsorbate so that it may be reused. The process is particularly suitable for adsorbent regeneration in the treating of waste-waters.
REFERENCES:
patent: 1724531 (1929-08-01), Stratford
patent: 2098779 (1937-11-01), Gericke et al.
patent: 2343165 (1944-02-01), Adler
patent: 3123553 (1964-03-01), Abrams
patent: 3477856 (1969-11-01), Schultz
patent: 3939281 (1976-02-01), Schwengers
patent: 3966981 (1976-06-01), Schultz
patent: 3979287 (1976-09-01), Vulliez-Serment et al.
Arthur D. Little Inc.
Douglas Winston A.
Konopka P. E.
Lepper Bessie A.
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