GB911597A - Process for production of methyl acetylene and allene - Google Patents
Process for production of methyl acetylene and alleneInfo
- Publication number
- GB911597A GB911597A GB2894261A GB2894261A GB911597A GB 911597 A GB911597 A GB 911597A GB 2894261 A GB2894261 A GB 2894261A GB 2894261 A GB2894261 A GB 2894261A GB 911597 A GB911597 A GB 911597A
- Authority
- GB
- United Kingdom
- Prior art keywords
- isobutylene
- allene
- steam
- cooling
- production
- 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
- C07C4/00—Preparation of hydrocarbons from hydrocarbons containing a larger number of carbon atoms
- C07C4/08—Preparation of hydrocarbons from hydrocarbons containing a larger number of carbon atoms by splitting-off an aliphatic or cycloaliphatic part from the molecule
- C07C4/10—Preparation of hydrocarbons from hydrocarbons containing a larger number of carbon atoms by splitting-off an aliphatic or cycloaliphatic part from the molecule from acyclic hydrocarbons
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Allene and methylacetylene are obtained by pyrolysing a mixture containing isobutylene and at least 40% mol of steam at above 1,000 DEG C. for 0.001-0.06 second and cooling rapidly. The heating is preferably effected by mixing the isobutylene, which may be preheated, with superheated steam at 2,000-2,500 DEG C. Alternatively a mixture of steam and isobutylene is heated by adding a hot gas, e.g. nitrogen, passing through an electric arc, burning a portion of the isobutylene or contacting with hot powdered particles, e.g. carbon. The total pressure may be 0.9-1.2 atmosphere and cooling, preferably to below 500 DEG C., is effected by shock cooling or with a cold liquid or gas. The products may be separated by distillation.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US4886460A | 1960-08-11 | 1960-08-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB911597A true GB911597A (en) | 1962-11-28 |
Family
ID=21956862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2894261A Expired GB911597A (en) | 1960-08-11 | 1961-08-10 | Process for production of methyl acetylene and allene |
Country Status (5)
| Country | Link |
|---|---|
| CH (1) | CH395061A (en) |
| DE (1) | DE1264435B (en) |
| DK (1) | DK106276C (en) |
| GB (1) | GB911597A (en) |
| NL (1) | NL268013A (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2752405A (en) * | 1952-12-10 | 1956-06-26 | Happel John | Manufacturing process for acetylenic hydrocarbons |
-
0
- NL NL268013D patent/NL268013A/xx unknown
-
1961
- 1961-08-03 CH CH908961A patent/CH395061A/en unknown
- 1961-08-04 DE DEN20412A patent/DE1264435B/en active Pending
- 1961-08-09 DK DK323761A patent/DK106276C/en active
- 1961-08-10 GB GB2894261A patent/GB911597A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DK106276C (en) | 1967-01-16 |
| DE1264435B (en) | 1968-03-28 |
| NL268013A (en) | |
| CH395061A (en) | 1965-07-15 |
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