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Method of producing needle coke for low CTE graphite electrodes

United States Patent

9,777,221
October 3, 2017
View the Complete Patent at the US Patent & Trademark Office
A method of producing low CTE graphite electrodes from needle coke formed from a coal tar distillate material having a relatively high initial boiling point.
Miller; Douglas J. (North Olmsted, OH), Lewis; Irwin C. (Strongsville, OH), Chang; Ching-Feng (Strongsville, OH), Lewis; Richard Thomas (Auburn, OH)
GrafTech International Holdings Inc. (Brooklyn Heights, OH)
11/ 427,786
June 29, 2006
GOVERNMENT INTERESTS This invention was made with the support of the U.S. Department of Energy, under Award No. DE-FC26-03NT41874. The Government has certain rights in the invention. However, any opinions, findings, conclusions, or recommendations expressed herein are those of the inventors and do not necessarily reflect the view of the DOE.