Process for high purity hexane and production thereof
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United States of America Patent
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Jul 7, 2020
Grant Date -
Jul 20, 2017
app pub date -
Jan 18, 2017
filing date -
Jan 18, 2016
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The invention relates to the production of High purity n-hexane from low value stream such as raffinate from benzene extraction unit in crude oil refineries employing extractive distillation. The present invention further related to an extractive distillation employing an organic solvent having comparable or same Hansen dispersive force parameter (δd) of that of the key component of to be separated through extractive distillation. The present invention is useful for separating and isolating pure cyclohexane, pure methylcyclopentane and pure iso-heptane along with the pure n-hexane.
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International Classification(s)
- 2017 Application Filing Year
- C07C Class
- 3457 Applications Filed
- 2472 Patents Issued To-Date
- 71.51 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- C07C Class
- 0 % this patent is cited more than
- 5 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Jan 7, 2028 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jan 7, 2032 |
