Method for preparation of 2,5-dimethylphenol by selective catalytic conversion of lignin
US-11524928-B2 · Dec 13, 2022 · US
Depolymerization of lignin using solid acid catalysts
US9051244B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9051244-B2 |
| Application number | US-201213467128-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 9, 2012 |
| Priority date | Jan 27, 2010 |
| Publication date | Jun 9, 2015 |
| Grant date | Jun 9, 2015 |
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Abstract
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The invention provides for a process for the depolymerization of lignin in an inert atmosphere to result in substituted phenolic monomer compounds. The process is catalyzed by heterogeneous solid acid catalysts and is carried out in batch or continuous mode.
First claim
Opening claim text (preview).
We claim: 1. A process for the conversion of lignin to substituted phenolic compounds, said process comprising the steps of: i. charging lignin and a catalyst in the ratio ranging between 0.1:1 to 1:0.1 into a reactor followed by charging a solvent, wherein the catalyst consists of a heterogeneous solid acid catalyst; ii. optionally flushing the reactor with nitrogen, argon, helium, hydrogen or air; iii. adjusting the reactor to operate at atmospheric pressure and heating the…
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Chemistry & Metallurgy · mapped topic
- C07C37/004Primary
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
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Frequently asked questions
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- What does patent US9051244B2 cover?
- The invention provides for a process for the depolymerization of lignin in an inert atmosphere to result in substituted phenolic monomer compounds. The process is catalyzed by heterogeneous solid acid catalysts and is carried out in batch or continuous mode.
- Who is the assignee on this patent?
- Dhepe Paresh Laxmikant, Kutteri Deepa Ayillath, Council Scient Ind Res
- What technology area does this patent fall under?
- Primary CPC classification C07C37/004. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jun 09 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).