GB673547A - Method for the preparation of isoprene - Google Patents
Method for the preparation of isopreneInfo
- Publication number
- GB673547A GB673547A GB17061/49A GB1706149A GB673547A GB 673547 A GB673547 A GB 673547A GB 17061/49 A GB17061/49 A GB 17061/49A GB 1706149 A GB1706149 A GB 1706149A GB 673547 A GB673547 A GB 673547A
- Authority
- GB
- United Kingdom
- Prior art keywords
- copper phosphate
- isoprene
- methyl
- isoamylene
- sulphate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C1/00—Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon
- C07C1/20—Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon starting from organic compounds containing only oxygen atoms as heteroatoms
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Catalysts (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Isoprene is prepared by passing 1-methoxy-3-methyl butylene-4 in the vapour phase under a pressure equal to or lower than the atmospheric pressure and at elevated temperature, over alumina or aluminium silicate which catalysts may be improved by the addition of copper phosphate or sulphate of magnesium, lead or barium. Dimethyl ether is also formed by dehydration of the methanol produced by the reaction. In the example g -isoamylene methyl ether is passed over kaolin containing copper phosphate at 310 DEG C. and at reduced pressure. The gaseous products are dried and condensed and fractionated. Specification 663,117 is referred to.ALSO:A catalyst comprising alumina or aluminium silicate, which may be improved by the addition of copper phosphate or a sulphate of magnesium, lead or barium, is employed in producing isoprene from g -isoamylene methyl ether (1-methoxy-3-methyl butylene-4) (see Group IV(b)). In the example the catalyst is employed in the form of small cylinders obtained by mixing kaolin and copper phosphate with water and forcing the paste formed through a calibrated tube.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR673547X | 1948-07-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB673547A true GB673547A (en) | 1952-06-11 |
Family
ID=9018188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB17061/49A Expired GB673547A (en) | 1948-07-27 | 1949-06-28 | Method for the preparation of isoprene |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB673547A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004052809A1 (en) * | 2002-12-10 | 2004-06-24 | Oxeno Olefinchemie Gmbh | Method for producing 1-olefins by catalytically splitting 1-alkoxyalkanes |
| WO2019136283A1 (en) | 2018-01-04 | 2019-07-11 | Gevo, Inc. | Upgrading fusel oil mixtures over heterogeneous catalysts to higher value renewable chemicals |
-
1949
- 1949-06-28 GB GB17061/49A patent/GB673547A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004052809A1 (en) * | 2002-12-10 | 2004-06-24 | Oxeno Olefinchemie Gmbh | Method for producing 1-olefins by catalytically splitting 1-alkoxyalkanes |
| US7342144B2 (en) | 2002-12-10 | 2008-03-11 | Oxeno Olefinchemie Gmbh | Method for producing 1-olefins by catalytically splitting 1-alkoxyalkanes |
| CN100430348C (en) * | 2002-12-10 | 2008-11-05 | 奥克森诺奥勒芬化学股份有限公司 | Method for producing 1-olefins by catalytically splitting 1-alkoxyalkanes |
| WO2019136283A1 (en) | 2018-01-04 | 2019-07-11 | Gevo, Inc. | Upgrading fusel oil mixtures over heterogeneous catalysts to higher value renewable chemicals |
| US10633320B2 (en) | 2018-01-04 | 2020-04-28 | Gevo, Inc. | Upgrading fusel oil mixtures over heterogeneous catalysts to higher value renewable chemicals |
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