GB912082A - Improvements in and relating to the preparation of isoprene and acetic acid - Google Patents
Improvements in and relating to the preparation of isoprene and acetic acidInfo
- Publication number
- GB912082A GB912082A GB2892860A GB2892860A GB912082A GB 912082 A GB912082 A GB 912082A GB 2892860 A GB2892860 A GB 2892860A GB 2892860 A GB2892860 A GB 2892860A GB 912082 A GB912082 A GB 912082A
- Authority
- GB
- United Kingdom
- Prior art keywords
- isoprene
- vol
- acetic acid
- relating
- preparation
- 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
- C07C1/207—Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon starting from organic compounds containing only oxygen atoms as heteroatoms from carbonyl compounds
- C07C1/213—Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon starting from organic compounds containing only oxygen atoms as heteroatoms from carbonyl compounds by splitting of esters
Abstract
Isoprene and acetic acid are obtained from 3-methyl-3-butene-1-ol acetate or isoprene glycol diacetate by passing in the vapour phase at 200-450 DEG C. over silica-alumina or silica-alumina with one or more oxides of Li, Na, K, Cu, Be, Mg, Ca, Zn, Sr, Cd, Ba, B, Ti, Zr, Pb, Cr, Mo, Mn, Fe, Co or Ni. The pressure of the acetates is preferably below 300 mm. Hg. by using reduced pressure or mixing with hydrogen, nitrogen, carbon dioxide or C2-C4 hydrocarbons. The LHSV may be 1-20 vol./hr./vol. for 3-methyl-3-butene-1-ol or 1-10 vol./hr./vol. for isoprene glycol diacetate. The catalyst may be as pellets in a fixed bed or used as a fluidised bed.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2673659 | 1959-08-22 | ||
| JP4025759 | 1959-12-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB912082A true GB912082A (en) | 1962-12-05 |
Family
ID=26364540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2892860A Expired GB912082A (en) | 1959-08-22 | 1960-08-22 | Improvements in and relating to the preparation of isoprene and acetic acid |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE594267A (en) |
| GB (1) | GB912082A (en) |
-
1960
- 1960-08-19 BE BE594267A patent/BE594267A/en unknown
- 1960-08-22 GB GB2892860A patent/GB912082A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE594267A (en) | 1960-12-16 |
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