GB1129622A - Process for the manufacture of ªß-pinene - Google Patents
Process for the manufacture of ªß-pineneInfo
- Publication number
- GB1129622A GB1129622A GB2668/66A GB266866A GB1129622A GB 1129622 A GB1129622 A GB 1129622A GB 2668/66 A GB2668/66 A GB 2668/66A GB 266866 A GB266866 A GB 266866A GB 1129622 A GB1129622 A GB 1129622A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pinene
- catalyst
- distillation
- suitably
- hydrogen
- 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
- C07C5/00—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms
- C07C5/22—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by isomerisation
- C07C5/23—Rearrangement of carbon-to-carbon unsaturated bonds
- C07C5/25—Migration of carbon-to-carbon double bonds
- C07C5/2506—Catalytic processes
- C07C5/2556—Catalytic processes with metals
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/584—Recycling of catalysts
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
1,129,622. #-Pinene. FARBWERKE HOECHST A.G. 20 Jan., 1966 [10 Sept., 1965], No. 2668/66. Heading C5E. #-Pinene is prepared by isomerizing α- pinene in the vapour phase at 140-200‹ C. in the absence of oxygen, in the presence as 1-5 vol. per cent (based on the pinene volume) of hydrogen, and over a palladium/carbon catalyst. The hydrogen serves to regenerate the catalyst and act as a carrier gas. The residence time is suitably 0À1-20 seconds. The feed is suitably a pinene-containing turpentine oil or terpene mixture, or a technical grade α-pinene. The product, after separation from the catalyst, is passed continuously to a distillation column where #-pinene concentrates and α-pinene is taken off overhead and recycled. The distillation is continued until the #-pinene content has reached the desired level, at which point further distillation will yield pure #-pinene and unconverted α-pinene which can be rearranged to camphene with titanic acid.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEF47145A DE1221218B (en) | 1965-09-10 | 1965-09-10 | Process for the production of beta-pinene |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1129622A true GB1129622A (en) | 1968-10-09 |
Family
ID=7101448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2668/66A Expired GB1129622A (en) | 1965-09-10 | 1966-01-20 | Process for the manufacture of ªß-pinene |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE1221218B (en) |
| FR (1) | FR1462791A (en) |
| GB (1) | GB1129622A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104945216A (en) * | 2015-05-19 | 2015-09-30 | 广西众昌树脂有限公司 | Preparation method of beta-pinene |
-
1965
- 1965-09-10 DE DEF47145A patent/DE1221218B/en active Pending
-
1966
- 1966-01-04 FR FR44775A patent/FR1462791A/en not_active Expired
- 1966-01-20 GB GB2668/66A patent/GB1129622A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104945216A (en) * | 2015-05-19 | 2015-09-30 | 广西众昌树脂有限公司 | Preparation method of beta-pinene |
Also Published As
| Publication number | Publication date |
|---|---|
| FR1462791A (en) | 1966-12-16 |
| DE1221218B (en) | 1966-07-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1519872A (en) | Process for distillation and purification of a crude alcoh/l containing mixture | |
| US3325553A (en) | Isomerization of alpha-pinene | |
| GB1173958A (en) | Improvements in or relating to the Purification of Unsaturated Hydrocarbons | |
| GB1334459A (en) | Process for recovering hydroperoxides | |
| US3738915A (en) | Method of separating vinyl acetate from liquid mixtures with plural distillations and side stream phase separation | |
| GB1278180A (en) | Process for isolating acrylic acid from aqueous crude acrylic acid | |
| GB1331207A (en) | Process for the recovery of ethylene oxide | |
| GB1129622A (en) | Process for the manufacture of ªß-pinene | |
| GB1319900A (en) | Process for the preparation of 5-vinylnorbornene 3 | |
| Greene et al. | Cyclic Diacyl Peroxides. V. 1 Reaction of Phthaloyl Peroxide with Norbornylene | |
| ES447779A1 (en) | Reaction product effluent separation process | |
| ES8400421A1 (en) | Process for the preparation of epsilon-caprolactone. | |
| GB1183360A (en) | Recovery of Glycidol | |
| GB980196A (en) | Process for removing acetone and other carbonyl compounds from vinyl acetate | |
| GB1196931A (en) | Preparation and Purification of Hydrocarbons | |
| GB1354949A (en) | Process for recovering pure maleic anhydride from crude maleic anhydride | |
| US2969380A (en) | Acid production | |
| ES480026A1 (en) | Process and apparatus for the production of cyclohexanone. | |
| GB1138420A (en) | Hydrocarbon oxidation process | |
| GB1248856A (en) | A process for working up impure vinyl acetate | |
| GB1151287A (en) | A Method of Continous Oxidation of Organic Compounds | |
| GB1354950A (en) | Process for recovering pure maleic anhydride from crude maleic anhydride | |
| GB1163850A (en) | Process for the Manufacture of vinyl Acetate | |
| US3097147A (en) | Recovery of propargyl alcohol | |
| US2375023A (en) | Separation of isomers of substituted poly-olefinic compounds |