Gas sintered carbon block and method
First Claim
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1. A method for producing a sintered carbon block by direct heat transfer, the method comprising:
- a) selecting a mixture comprising least one polymer and at least one carbon compound;
b) providing a gas;
c) heating said gas to a vicat temperature, said vicat temperature being determined by the composition of the polymer and carbon mixture;
d) introducing said heated gas into a mold defined by interior and exterior walls, wherein at least one interior wall and at least one exterior wall is permeable to the heated gas;
e) passing said heated gas heated gas through said mixture between said interior and exterior walls; and
d) sintering said mixture for a predetermined time period by direct heat transfer, whereby a sintered carbon block is formed.
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Abstract
The present invention relates to an effective and rapid method and apparatus for sintering carbon filter blocks having a polymeric binder. The method employs direct contact heat transfer by gas molecule to powder particle, as opposed to conduction heat transfer from an external heating source, using commercially available sintered porous metal sheets and cylinders to form the mold and confine the powder, while allowing heated gas to pass uniformly through the mixture.
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10 Claims
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1. A method for producing a sintered carbon block by direct heat transfer, the method comprising:
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a) selecting a mixture comprising least one polymer and at least one carbon compound;
b) providing a gas;
c) heating said gas to a vicat temperature, said vicat temperature being determined by the composition of the polymer and carbon mixture;
d) introducing said heated gas into a mold defined by interior and exterior walls, wherein at least one interior wall and at least one exterior wall is permeable to the heated gas;
e) passing said heated gas heated gas through said mixture between said interior and exterior walls; and
d) sintering said mixture for a predetermined time period by direct heat transfer, whereby a sintered carbon block is formed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification