GB484357A - Improvements in or relating to hydrogenation process - Google Patents
Improvements in or relating to hydrogenation processInfo
- Publication number
- GB484357A GB484357A GB1337337A GB1337337A GB484357A GB 484357 A GB484357 A GB 484357A GB 1337337 A GB1337337 A GB 1337337A GB 1337337 A GB1337337 A GB 1337337A GB 484357 A GB484357 A GB 484357A
- Authority
- GB
- United Kingdom
- Prior art keywords
- abietyl
- catalyst
- esters
- treatment
- compounds
- 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
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Rosin and other abietyl compounds, i.e. those containing the hydrocarbon nucleus of abietic acid, are hydrogenated in the liquid phase and preferably in a continuous manner using a catalyst consisting of a nickel-aluminium alloy previously activated, e.g. by treatment with alkali or hydrogen. Other abietyl compounds include abietic acid and its esters, e.g. methyl, ethyl or glyceryl; abietyl alcohol or esters of abietyl alcohol. The catalytic alloy may also include small amounts of copper, zirconium, cerium or cobalt as promoters. The abietyl compound and the hydrogen preferably flow in counter-current through granules of the catalyst, at a temperature of 70-230 DEG C. preferably about 210 DEG C. and a pressure of 100-5000 lb. per sq. inch. The lower temperatures and pressures are used when the compounds are dissolved in a solvent such as naphtha or isopropyl ether. The catalyst may be reactivated by treatment with an alkali solution, if desired after solvent extraction. In some cases, an acid pickle prior to the treatment with alkali is desirable.ALSO:Rosin and other abietyl compounds, i.e. those containing the hydrocarbon nucleus of abietic acid, are hydrogenated in the liquid phase and preferably in a continuous manner using a catalyst consisting of a nickel-aluminium alloy previously activated, e.g. by treatment with alkali or hydrogen. Other abietyl compounds include abietic acid and its esters, e.g. methyl, ethyl or glyceryl; abietyl alcohol or esters of abietyl alcohol. The catalytic alloy may also include small amounts of copper, zirconium, cerium or cobalt as promoters. The abietyl compound and the hydrogen preferably flow in counter-current through granules of the catalyst, the abietyl compound, if desired, being dissolved in a solvent such as naphtha or isopropyl ether.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1337337A GB484357A (en) | 1937-05-11 | 1937-05-11 | Improvements in or relating to hydrogenation process |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1337337A GB484357A (en) | 1937-05-11 | 1937-05-11 | Improvements in or relating to hydrogenation process |
Publications (1)
Publication Number | Publication Date |
---|---|
GB484357A true GB484357A (en) | 1938-05-04 |
Family
ID=10021780
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1337337A Expired GB484357A (en) | 1937-05-11 | 1937-05-11 | Improvements in or relating to hydrogenation process |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB484357A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2427132A1 (en) * | 1978-06-03 | 1979-12-28 | Chinoin Gyogyszer Es Vegyeszet | ALUMINUM ALLOYS HAVING A HIGH REDUCING CAPACITY, THEIR PREPARATION AND THEIR APPLICATION IN ORGANIC CHEMISTRY |
US4847010A (en) * | 1987-01-29 | 1989-07-11 | Arakawa Kagaku Kogyo Kabushiki Kaisha | Process for preparing rosin ester with esterification and hydrogenation |
US4906733A (en) * | 1987-01-29 | 1990-03-06 | Arakawa Kagaku Kogyo Kabushiki Kaisha | Process for preparing colorless rosin |
-
1937
- 1937-05-11 GB GB1337337A patent/GB484357A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2427132A1 (en) * | 1978-06-03 | 1979-12-28 | Chinoin Gyogyszer Es Vegyeszet | ALUMINUM ALLOYS HAVING A HIGH REDUCING CAPACITY, THEIR PREPARATION AND THEIR APPLICATION IN ORGANIC CHEMISTRY |
US4847010A (en) * | 1987-01-29 | 1989-07-11 | Arakawa Kagaku Kogyo Kabushiki Kaisha | Process for preparing rosin ester with esterification and hydrogenation |
US4906733A (en) * | 1987-01-29 | 1990-03-06 | Arakawa Kagaku Kogyo Kabushiki Kaisha | Process for preparing colorless rosin |
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