The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 30, 1980
Filed:
Jan. 23, 1979
Klaus Unger, Darmstadt, DE;
Heinz Gotz, Darmstadt, DE;
Merck Patent Gesellschaft mit beschrankter Haftung, Darmstadt, DE;
Abstract
A process for preparing porous carbon support materials comprises treating activated carbon or coke, having a particle size of about 5 to about 50 .mu.m, a specific surface area of about 10 to 1,000 m.sup.2 /g, a hardness of at least about 95% attrition resistance, with solvent or solvents, and then heat treating the activated carbon or coke at a temperature of about 2,400-3,000.degree. C. under an inert, gas atmosphere; said solvent or solvents affecting the mineral and organic impurities in the activated carbon or coke such that after said subsequent heat treatment, substantially all of said impurities are removed. A hard, mechanically stable, porous carbon support material consisting essentially of highly purified activated carbon, highly purified coke or a mixture thereof, said support material having a carbon content of at least 99%, a specific surface area of about 1 to about 5 m.sup.2 /g and a particle size of about 5 to about 50 .mu.m, may be prepared in this way.