Title:
METHOD OF PRODUCING MESOPHASE PITCH
Document Type and Number:
Japanese Patent JP2023161310
Kind Code:
A
Abstract:
To provide a method of producing mesophase pitch, capable of producing practical mesophase pitch from lignite synthetic oil and petroleum-based residue or a reformed product of the petroleum-based residue as a starting material.SOLUTION: The method of producing mesophase pitch, comprises: a mixing step of mixing a first raw material and a second raw material to obtain mixed raw materials, the first raw material being lignite synthetic oil obtained by subjecting a mixture including lignite and water to a hydrothermal treatment under pressure, the second raw material being hydrogen-donating petroleum-based residue or the reformed product of the petroleum-based residue; a co-pitching step of heating the mixed raw materials under pressure to carry out a co-pitching reaction; a reaction product recovery step of recovering the reaction product obtained by the co-pitching step; and a pitch preparation step of vacuum-distilling the recovered reaction product to prepare mesophase pitch.SELECTED DRAWING: None
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Inventors:
MATSUOKA SHUICHI
MATSUO HIROSHI
SAKUSABE KOSUKE
MATSUO HIROSHI
SAKUSABE KOSUKE
Application Number:
JP2022071620A
Publication Date:
November 07, 2023
Filing Date:
April 25, 2022
Export Citation:
Assignee:
IDEMITSU KOSAN CO
JAPAN ORGANIZATION FOR METALS AND ENERGY SECURITY
JAPAN ORGANIZATION FOR METALS AND ENERGY SECURITY
International Classes:
C10C3/02
Attorney, Agent or Firm:
Patent Attorney Corporation Kinoshita Intellectual Property Office