Title:
METHOD FOR PRODUCING IMPREGNATED PITCH
Document Type and Number:
WIPO Patent Application WO/2021/181905
Kind Code:
A1
Abstract:
Provided is impregnated pitch having a high fixed carbon content despite being petroleum-based pitch. The method for producing impregnated pitch for graphite electrode production according to one embodiment includes heat treatment of ethylene bottom oil and distillation of the heat-treated product to remove low-boiling-point compounds.
Inventors:
NISHI NOBUHIRO (JP)
OTA KEISUKE (JP)
OKUMURA YOSHIKUNI (JP)
OTA KEISUKE (JP)
OKUMURA YOSHIKUNI (JP)
Application Number:
PCT/JP2021/002080
Publication Date:
September 16, 2021
Filing Date:
January 21, 2021
Export Citation:
Assignee:
SHOWA DENKO KK (JP)
International Classes:
C10C3/02; C01B32/00
Foreign References:
| JPS4935420A | 1974-04-02 | |||
| JPS5183622A | 1976-07-22 | |||
| JPS5360927A | 1978-05-31 | |||
| JPS51112831A | 1976-10-05 | |||
| JP2018053071A | 2018-04-05 |
Attorney, Agent or Firm:
AOKI, Atsushi et al. (JP)
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