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. 09, 1977
Filed:
Sep. 18, 1975
Kiyoshige Hayashi, Tokyo, JA;
Mikio Nakaniwa, Ohme, JA;
Nobuyuki Kobayashi, Ichihara, JA;
Minoru Yamamoto, Ichihara, JA;
Yoshihiko Hase, Ichihara, JA;
Maruzen Petrochemical Co., Ltd., Tokyo, JA;
Abstract
A petroleum coke of unusually high-crystalline texture and of high purity is produced from a low-sulfur petroleum material by a process including a preheat-treating step for removing non-crystalline substances contained in the material as pitch or coke and a coking step wherein a heavy oil derived from the preceding step is coked in a coking crystallizer in such a manner that pitch-like heavy oil downwardly flows and is progressively accumulated and coked therein while gaseous light hydrocarbons are discharged at the upper part of crystallizer whereby the coking is conducted with a high growth and high orientation of coke crystals formed.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile