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US-9950969-B2 · Apr 24, 2018 · US
Process for making biobased isoprene
US9975818B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9975818-B2 |
| Application number | US-201514683252-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 10, 2015 |
| Priority date | Oct 31, 2012 |
| Publication date | May 22, 2018 |
| Grant date | May 22, 2018 |
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Abstract
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Processes are described for making biobased isoprene, wherein a biobased isobutene prepared from acetic acid in the presence of a catalyst is combined with a formaldehyde source to form a reaction mixture, and the reaction mixture is reacted to yield biobased isoprene. In certain embodiments, methyl-tert-butyl ether prepared by reacting the same biobased isobutene with methanol serves as a formaldehyde source, being oxidatively cracked to produce formaldehyde as well as isobutene for being converted to the biobased isoprene.
First claim
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The invention claimed is: 1. A process for making isoprene, comprising: converting acetic acid to isobutene in the presence of a Zn x Zr y O z mixed oxide catalyst in which the ratio of x:y is from 1:100 to 10:1 and z is a stoichiometric integer for the mixed oxide catalyst; and reacting the isobutene with formaldehyde. 2. A process comprising copolymerizing isobutene made from acetic acid in the presence of a Zn x Zr y O z mixed oxide catalyst in which t…
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Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
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- What does patent US9975818B2 cover?
- Processes are described for making biobased isoprene, wherein a biobased isobutene prepared from acetic acid in the presence of a catalyst is combined with a formaldehyde source to form a reaction mixture, and the reaction mixture is reacted to yield biobased isoprene. In certain embodiments, methyl-tert-butyl ether prepared by reacting the same biobased isobutene with methanol serves as a form…
- Who is the assignee on this patent?
- Archer Daniels Midland Co, Univ Washington State
- What technology area does this patent fall under?
- Primary CPC classification C07C2/867. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue May 22 2018 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).