Method and apparatus for continuous production of mesophase pitch
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United States of America Patent
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Feb 13, 2024
Grant Date -
Mar 2, 2023
app pub date -
Aug 26, 2021
filing date -
Aug 26, 2021
priority date (Note) -
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status (Latency Note)
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Abstract
A process and apparatus for the continuous conversion of isotropic carbonaceous materials into anisotropic mesophase pitch is disclosed. The invention disclosed herein addresses the need for lower production costs compared with traditional batch mesophase conversion of isotropic pitch. A unique thermal processing and in-process separation of reacted mesophase from the continuous matrix of fresh or partially reacted isotropic pitch is provided. Potential uses are for further continuous processing into carbon fibers or carbon form densification.
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International Classification(s)
- 2021 Application Filing Year
- B01J Class
- 3215 Applications Filed
- 1216 Patents Issued To-Date
- 37.83 % Issued To-Date
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- 0 Citation Count
- B01J Class
- 0 % this patent is cited more than
- 1 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 3.5 Year Payment | $1600.00 | $800.00 | $400.00 | Aug 13, 2027 |
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Aug 13, 2031 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Aug 13, 2035 |
