Gaseous phase adsorption using partially pyrolyzed polymer parti

Details Gaseous phase adsorption using partially pyrolyzed polymer parti Gaseous phase adsorption using partially pyrolyzed polymer parti

1976-02-02

1977-12-20

Spear, Jr., Frank A.

Gas separation

Means within gas stream for conducting concentrate to collector

B01D 5304

Patent

active

040639126

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 macro-reticular ion exchange resins.

REFERENCES:
patent: 2203690 (1940-06-01), Malm et al.
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.

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