Method for producing mesophase continuously
Patent
·
OSTI ID:5356455
A method for producing continuously 100% mesophase composed only of Q.I. component and Q.S. component in which a raw material of petroleum origin pitch is subjected continuously to a heat-treatment step in an amount necessary to produce a 100% mesophase taken out from a mesophase-growing and coalescing step, transferring the heat-formed pitch formed in the heat treatment step to a mesophase growing and coalescing step, taking out a definite amount of a non-mesophase pitch from the mesophase growing and coalescing step after stirring and heating treatment to return it to the heat-treatment step to repeat the stirring and heating treatment, and at the same time to take out 100% mesophase having constant properties from the mesophase growing and coalescing step.
- Assignee:
- Kashima Oil Co. Limited (Japan)
- Patent Number(s):
- US 4512874
- OSTI ID:
- 5356455
- Country of Publication:
- United States
- Language:
- English
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