Title:
炭素緻密化微粒子の製造方法、及び炭素緻密化微粒子
Document Type and Number:
Japanese Patent JP7118828
Kind Code:
B2
Abstract:
To provide a method for producing carbon dense fine particles by which carbon dense fine particles highly filled with carbon in fine pores of the fine particles can be obtained.SOLUTION: A method for producing carbon dense fine particles is provided which comprises a carbon densification step using fine particles having fine pores and an impregnated pitch having less than 1% quinoline insoluble content, 5% to 30% toluene insoluble content, and 40% or more fixed carbon and having a softening point of 60°C to 100°C. Preferable embodiments include an embodiment where the ratio of a density of the fine particles to a density of the impregnated pitch is greater than 1, and an embodiment where a pressure reduction step and an impregnated pitch melting step are included in this order before the carbon densification step.SELECTED DRAWING: None
Inventors:
Fukagawa Toshihiro
Toru Sakai
Toru Sakai
Application Number:
JP2018171013A
Publication Date:
August 16, 2022
Filing Date:
September 12, 2018
Export Citation:
Assignee:
Taiyo Nippon Sanso Co., Ltd.
International Classes:
C01B32/05
Domestic Patent References:
| JP5345670A | ||||
| JP2051470A |
Foreign References:
| WO2015105167A1 | ||||
| EP3093910A1 | ||||
| US5525558 |
Attorney, Agent or Firm:
Patent Attorney Shiga International Patent Office
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