Low density microcellular carbon or catalytically impregnated carbon forms and process for their preparation
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.
- Assignee:
- Dept. of Energy, Washington, DC
- Patent Number(s):
- US 4806290
- OSTI ID:
- 6192403
- Country of Publication:
- United States
- Language:
- English
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Low density microcellular carbon or catalytically impregnated carbon forms and process for their preparation
Low density microcellular carbon or catalytically impregnated carbon foams and process for their preparation
Related Subjects
360601* -- Other Materials-- Preparation & Manufacture
360603 -- Materials-- Properties
ALKALI METAL COMPOUNDS
AROMATICS
CARBON
CATALYSTS
CHLORIDES
CHLORINE COMPOUNDS
COLLOIDS
DENSITY
DISPERSIONS
DRYING
ELEMENTS
FABRICATION
FOAMS
FREEZING
HALIDES
HALOGEN COMPOUNDS
HYDROXY COMPOUNDS
NONMETALS
ORGANIC COMPOUNDS
PARTICLE SIZE
PHENOLS
PHYSICAL PROPERTIES
POLYMERS
PROCESSING
SINTERING
SIZE
SODIUM CHLORIDES
SODIUM COMPOUNDS