GB563273A - Improvements in or relating to method of purifying 3-picoline - Google Patents
Improvements in or relating to method of purifying 3-picolineInfo
- Publication number
- GB563273A GB563273A GB4984/42A GB498442A GB563273A GB 563273 A GB563273 A GB 563273A GB 4984/42 A GB4984/42 A GB 4984/42A GB 498442 A GB498442 A GB 498442A GB 563273 A GB563273 A GB 563273A
- Authority
- GB
- United Kingdom
- Prior art keywords
- picoline
- vanadium
- chromium
- groups
- catalyst
- 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
- Pyridine Compounds (AREA)
- Catalysts (AREA)
Abstract
3-Picoline is purified from 4-picoline or 2,6-lutidine by subjecting the mixture to a mildly oxidizing oxygen-containing gas at raised temperature in presence of an oxidation catalyst comprising an oxide of an element of the A sub-groups of Groups V and VI of the periodic system, so that a selective oxidation of the impurities takes place, and 3-picoline is separated. In examples, hot air and picoline is passed at 350 DEG C. over vanadium pentoxide prepared by spraying an aqueous suspension of ammonium vanadate on to small granules of silica and calcining. A vanadium-iron catalyst prepared from ferric nitrate and vanadyl nitrate, or a vanadium-chromium, vanadium-molybdenum, or chromium-tungsten catalyst may be used. Specification 563,274 is referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US563273XA | 1941-05-31 | 1941-05-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB563273A true GB563273A (en) | 1944-08-08 |
Family
ID=22003676
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4984/42A Expired GB563273A (en) | 1941-05-31 | 1942-04-15 | Improvements in or relating to method of purifying 3-picoline |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB563273A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105037251A (en) * | 2015-05-22 | 2015-11-11 | 南京红太阳生物化学有限责任公司 | 3,5-dimethylpyridine purifying method |
-
1942
- 1942-04-15 GB GB4984/42A patent/GB563273A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105037251A (en) * | 2015-05-22 | 2015-11-11 | 南京红太阳生物化学有限责任公司 | 3,5-dimethylpyridine purifying method |
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