GB797989A - Improvements in or relating to the production of olefinic compounds by the continuous catalytic dehydration of alcohols in the liquid phase - Google Patents
Improvements in or relating to the production of olefinic compounds by the continuous catalytic dehydration of alcohols in the liquid phaseInfo
- Publication number
- GB797989A GB797989A GB22054/55A GB2205455A GB797989A GB 797989 A GB797989 A GB 797989A GB 22054/55 A GB22054/55 A GB 22054/55A GB 2205455 A GB2205455 A GB 2205455A GB 797989 A GB797989 A GB 797989A
- Authority
- GB
- United Kingdom
- Prior art keywords
- derivatives
- olefinic compounds
- alcohol
- alcohols
- liquid phase
- 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
- C07C1/24—Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon starting from organic compounds containing only oxygen atoms as heteroatoms by elimination of water
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2527/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- C07C2527/02—Sulfur, selenium or tellurium; Compounds thereof
- C07C2527/053—Sulfates or other compounds comprising the anion (SnO3n+1)2-
- C07C2527/054—Sulfuric acid or other acids with the formula H2Sn03n+1
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2527/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- C07C2527/14—Phosphorus; Compounds thereof
- C07C2527/16—Phosphorus; Compounds thereof containing oxygen
- C07C2527/167—Phosphates or other compounds comprising the anion (PnO3n+1)(n+2)-
- C07C2527/173—Phosphoric acid or other acids with the formula Hn+2PnO3n+1
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2531/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- C07C2531/02—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
- C07C2531/025—Sulfonic acids
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2531/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- C07C2531/02—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
- C07C2531/04—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides containing carboxylic acids or their salts
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2601/00—Systems containing only non-condensed rings
- C07C2601/12—Systems containing only non-condensed rings with a six-membered ring
- C07C2601/16—Systems containing only non-condensed rings with a six-membered ring the ring being unsaturated
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Olefinic compounds are continuously produced by the acid catalysed dehydration of alcohols in the liquid phase and in the presence of a polar solvent, soluble in the alcohol and of higher boiling point than that of water and the olefinic compounds produced. Olefinic compounds referred to are olefins, cycloalkenes and aromatic compounds containing an olefinic double bond in a side-chain, e.g. styrene. Catalysts referred to are sulphuric, phosphoric and p-toluene sulphonic acids. Polar solvents referred to are phenols, e.g. phenol, cresol and xylenol, phenol derivatives, nitro-aromatic derivatives, e.g. nitrobenzene and nitrotoluene, and acetic acid and its derivatives, e.g. the halogenated derivatives such as mono- and dichloroacetic acids and the corresponding fluoroacetic acids. The dehydration may be carried out by heating a mixture of the catalyst, polar solvent and alcohol to boiling point, distilling off the reaction products and continuously adding additional alcohol to the reaction mixture to maintain the reaction volume constant. The preparation of cyclohexene and primary and secondary octene is described.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR797989X | 1954-07-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB797989A true GB797989A (en) | 1958-07-09 |
Family
ID=9235991
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB22054/55A Expired GB797989A (en) | 1954-07-29 | 1955-07-29 | Improvements in or relating to the production of olefinic compounds by the continuous catalytic dehydration of alcohols in the liquid phase |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB797989A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1181207B (en) * | 1960-05-26 | 1964-11-12 | Engelhard Ind Inc | Process for the dehydration of cyclohexanol to cyclohexene |
WO2003024910A1 (en) * | 2001-09-17 | 2003-03-27 | Sasol Technology (Pty) Limited | Method of increasing the carbon chain length of olefinic compounds |
US7858787B2 (en) | 2006-09-22 | 2010-12-28 | Shell Oil Company | Process for producing olefins |
-
1955
- 1955-07-29 GB GB22054/55A patent/GB797989A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1181207B (en) * | 1960-05-26 | 1964-11-12 | Engelhard Ind Inc | Process for the dehydration of cyclohexanol to cyclohexene |
WO2003024910A1 (en) * | 2001-09-17 | 2003-03-27 | Sasol Technology (Pty) Limited | Method of increasing the carbon chain length of olefinic compounds |
US7858787B2 (en) | 2006-09-22 | 2010-12-28 | Shell Oil Company | Process for producing olefins |
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