IMPROVEMENTS IN OR RELATING TO THE PRODUCTION OF LOW PERMEABILITY CARBON

Patent · Wed Mar 20 04:00:00 EST 1963

OSTI ID:4747166

Rivington, H L

A method for producing low-permeability carbon comprises heating a monomeric cyclic carbon compound under pressure to effect polymerization, and heating the polymer further to effect carbonization. A suitable monomer is furfuryl alcohol, which may be converted into carbon in a pressure bomb by raising the N/sub 2/ pressure to 2000 psi, and the temperature slowly to 400 deg C over 3 days. After carbonization is completed, the resulting product is next heated to 1000 deg C at the rate of 300 deg C/hr to drive off any volatile matter. The resulting carbon has a permeability on the order of 10/sup -7/ Lusecs. (D.L.C.)

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-17-016578
• OSTI ID: 4747166
• Report Number(s): GB 921236
• Country of Publication: United Kingdom
• Language: English

Related Subjects

ALCOHOLS
ALDEHYDES
CARBON
CYCLOALKANES
CYCLOALKENES
FURANS
FURFURAL
FURFUROL
GASES
HEAT TREATMENTS
HEATING
HETEROCYCLICS
MEASURED VALUES
METALS, CERAMICS, AND OTHER MATERIALS
NITROGEN
NUMERICALS
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
OXYGEN COMPOUNDS
POLYMERIZATION
POROSITY
PRESSURE
PRESSURE VESSELS
PRODUCTION
VOLATILITY