Chemistry of inorganic compounds – Carbon or compound thereof – Elemental carbon
Patent
1987-04-30
1988-07-12
Konopka, Paul E.
Chemistry of inorganic compounds
Carbon or compound thereof
Elemental carbon
264 291, 423445, 423461, 502180, 502184, 502185, 502416, 502427, C01B 3102, B01J 2118, B01J 2020
Patent
active
047568984
ABSTRACT:
Machinable and structurally stable, low density microcellular carbon, and catalytically impregnated carbon, foams, and process for their preparation, are provided. Pulverized sodium chloride is classified to improve particle size uniformity, and the classified particles may be further mixed with a catalyst material. The particles are cold pressed into a compact having internal pores, and then sintered. The sintered compact is immersed and then submerged in a phenolic polymer solution to uniformly fill the pores of the compact with phenolic polymer. The compact is then heated to pyrolyze the phenolic polymer into carbon in the form of a foam. Then the sodium chloride of the compact is leached away with water, and the remaining product is freeze dried to provide the carbon, or catalytically impregnated carbon, foam.
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Hopper Robert W.
Pekala Richard W.
Carnahan L. E.
Hightower Judson R.
Konopka Paul E.
Roth Gary C.
The United States of America as represented by the United States
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