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. 29, 1981
Filed:
Jul. 25, 1979
Applicant:
Inventor:
Andre A Simone, Dover, NJ (US);
Assignee:
The Lummus Company, Bloomfield, NJ (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10G / ;
U.S. Cl.
CPC ...
208131 ; 208 87 ; 2082 / ;
Abstract
Coal tar pitch is contacted with a promoter liquid having a 5 volume percent distillation temperature of at least 250.degree. F. and a 95 volume percent distillation temperature of at least 350.degree. F. and no greater than about 750.degree. F., with the liquid having a characterization factor of at least 9.75 to promote the separation of quinoline insolubles from the pitch. A coal tar pitch fraction essentially free of quinoline insolubles is then subjected to coking to produce a needle coke. The process is also applicable to separation of quinoline insolubles from coal tar derived binder pitch.