Liquid purification or separation – With alarm – indicator – register – recorder – signal or... – Responsive to fluid flow
Patent
1976-02-02
1977-12-20
Spear, Jr., Frank A.
Liquid purification or separation
With alarm, indicator, register, recorder, signal or...
Responsive to fluid flow
127 55, B01D 1500
Patent
active
040640434
ABSTRACT:
Partially pyrolyzed particles of macroporous resinous polymer have improved structural stability and utility. Pyrolyzed preformed beads are useful as adsorbents in both gaseous and liquid media to remove impurities such as vinylchloride monomer from gases, aromatic compounds such as barbituates from blood, and phenolics from industrial waste streams. Pyrolyzed materials are also useful as catalysts in industrial and laboratory applications due to the controllable surface area and due to a variety of metals, among other things, that may be incorporated into the particles prior to pyrolysis. Preferred adsorbents are prepared from pyrolyzed beads of macroreticular ion exchange resins.
REFERENCES:
patent: 3625886 (1971-12-01), Mattia
Winslow et al. Pyrolysis of Crosslinked Styrene Polymers, Journal of Polymer Science, vol. 22, pp. 315-324 (1956).
Dollimore et al. The Degradation of Selected Polymers to Carbons in an Inert Atmosphere, Carbon, vol. 5, pp. 65-72 (1967).
Japanese Kokai patent publication No. 49-53594, published May 24, 1974.
Cintins Ivars
Kline, Jr. Louis F.
Rohm and Haas Company
Spear, Jr. Frank A.
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