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:
Aug. 26, 1980
Filed:
Sep. 28, 1978
Applicant:
Inventors:
Assignees:
Sigri Elektrographit GmbH, Meitingen, DE;
Bergwerksverband GmbH, Essen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C10G / ;
U.S. Cl.
CPC ...
208 50 ; 201 18 ; 208 42 ; 208 78 ; 208106 ; 208131 ; 422189 ; 423449 ;
Abstract
Continuous production of coke by pyrolysis of a hydrocarbon mixture containing petroleum tar, coal tar pitch or pyrolysis tars in which the hyrocarbon mixture and recycled condensate is heated in a preheater at a rate to increase the mesophase content of the mixture up to 30 to 60%; the preheated mixture is then heated in a coking zone at a rate to form a raw coke having a mesophase content of 70 to 100%; continuously removing the raw coke from the coking zone and heating it in a calciner. The coke produced is more uniform and the process more efficient.