Invention Grant
US08715484B2 Process for producing needle coke for graphite electrode and stock oil composition for use in the process
有权
用于生产用于石墨电极的针状焦炭和用于该方法的原料油组合物的方法
- Patent Title: Process for producing needle coke for graphite electrode and stock oil composition for use in the process
- Patent Title (中): 用于生产用于石墨电极的针状焦炭和用于该方法的原料油组合物的方法
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Application No.: US13062106Application Date: 2009-09-04
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Publication No.: US08715484B2Publication Date: 2014-05-06
- Inventor: Tamotsu Tano , Takashi Oyama , Toshiyuki Oda , Ippei Fujinaga , Hiromitsu Hashisaka
- Applicant: Tamotsu Tano , Takashi Oyama , Toshiyuki Oda , Ippei Fujinaga , Hiromitsu Hashisaka
- Applicant Address: JP Tokyo
- Assignee: JX Nippon Oil & Energy Corporation
- Current Assignee: JX Nippon Oil & Energy Corporation
- Current Assignee Address: JP Tokyo
- Agency: Greenblum & Bernstein, P.L.C.
- Priority: JPP2008-231024 20080909
- International Application: PCT/JP2009/065496 WO 20090904
- International Announcement: WO2010/029895 WO 20100318
- Main IPC: C10B55/00
- IPC: C10B55/00 ; C10B57/04
Abstract:
The invention provides a stock oil composition for needle coke for a graphite electrode, the stock oil composition having a 10 vol % distillation temperature of 280° C. or higher as the distillation property, and when separated into the aromatic component and non-aromatic component by elution chromatography, having an aromatic component content of 30-80 wt % with respect to the total weight of the stock oil composition and an aromatic component molecular weight of 255-1300, as well as a non-aromatic component normal paraffin content of at least 5 parts by weight with respect to 100 parts by weight of the aromatic component.
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