JPS55143950A - Purification of acetonitrile - Google Patents
Purification of acetonitrileInfo
- Publication number
- JPS55143950A JPS55143950A JP5197979A JP5197979A JPS55143950A JP S55143950 A JPS55143950 A JP S55143950A JP 5197979 A JP5197979 A JP 5197979A JP 5197979 A JP5197979 A JP 5197979A JP S55143950 A JPS55143950 A JP S55143950A
- Authority
- JP
- Japan
- Prior art keywords
- acetonitrile
- oxazole
- water
- column
- separation
- 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.)
- Granted
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
PURPOSE: To recover the pure title compound efficiently, by separating and removing oxazole together with other impurities from crude acetonitrile containing oxazole, without addition of any chemicals, through the extractive distillation of the crude acetonitrile in a rectification column in the presence of a specific amount of water.
CONSTITUTION: Acetonitrile free from oxazole is recovered from the lower part of a column by the extractive distillation of acetonitrile containing oxazole, in a rectification column in the presence of 0.5W5wt% of water, followed by the concentration and separation of oxazole as a mixture together with water and a small amount of acetonitrile from the top of the column. When the content of water is in the range of 1W3wt%, saving of steam for the distillation separation and improvement of the recovery of acetonitrile can be achieved.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5197979A JPS55143950A (en) | 1979-04-26 | 1979-04-26 | Purification of acetonitrile |
US06/131,611 US4308108A (en) | 1979-03-28 | 1980-03-19 | Process for purification of crude acetonitrile |
DE3050668A DE3050668C2 (en) | 1979-03-28 | 1980-03-25 | |
DE3050669A DE3050669C2 (en) | 1979-03-28 | 1980-03-25 | |
DE19803011391 DE3011391A1 (en) | 1979-03-28 | 1980-03-25 | METHOD FOR PURIFYING RAW ACETONITRILE |
DE3050670A DE3050670C2 (en) | 1979-03-28 | 1980-03-25 | |
IT20915/80A IT1130079B (en) | 1979-03-28 | 1980-03-26 | PROCEDURE FOR PURIFYING RAW ACETONITRILE |
US06/289,628 US4430162A (en) | 1979-03-28 | 1981-08-03 | Process for purification of crude acetonitrile |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5197979A JPS55143950A (en) | 1979-04-26 | 1979-04-26 | Purification of acetonitrile |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55143950A true JPS55143950A (en) | 1980-11-10 |
JPS6154022B2 JPS6154022B2 (en) | 1986-11-20 |
Family
ID=12901973
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5197979A Granted JPS55143950A (en) | 1979-03-28 | 1979-04-26 | Purification of acetonitrile |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55143950A (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2417862A (en) * | 1943-12-01 | 1947-03-25 | Us Vanadium Corp | Dehydration of acetonitrile by decantation and distillation |
US3203975A (en) * | 1962-09-05 | 1965-08-31 | Universal Oil Prod Co | Purification of acetronitrile and propionitrile |
US3281450A (en) * | 1963-09-27 | 1966-10-25 | Goodrich Co B F | Purification of acetonitrile |
-
1979
- 1979-04-26 JP JP5197979A patent/JPS55143950A/en active Granted
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2417862A (en) * | 1943-12-01 | 1947-03-25 | Us Vanadium Corp | Dehydration of acetonitrile by decantation and distillation |
US3203975A (en) * | 1962-09-05 | 1965-08-31 | Universal Oil Prod Co | Purification of acetronitrile and propionitrile |
US3281450A (en) * | 1963-09-27 | 1966-10-25 | Goodrich Co B F | Purification of acetonitrile |
Also Published As
Publication number | Publication date |
---|---|
JPS6154022B2 (en) | 1986-11-20 |
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