GB1214882A - Process for the production of acrylonitrile - Google Patents
Process for the production of acrylonitrileInfo
- Publication number
- GB1214882A GB1214882A GB4044168A GB4044168A GB1214882A GB 1214882 A GB1214882 A GB 1214882A GB 4044168 A GB4044168 A GB 4044168A GB 4044168 A GB4044168 A GB 4044168A GB 1214882 A GB1214882 A GB 1214882A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ammonium sulphate
- acrylonitrile
- washer
- ammonia
- gas
- 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
- C07C253/00—Preparation of carboxylic acid nitriles
- C07C253/24—Preparation of carboxylic acid nitriles by ammoxidation of hydrocarbons or substituted hydrocarbons
- C07C253/26—Preparation of carboxylic acid nitriles by ammoxidation of hydrocarbons or substituted hydrocarbons containing carbon-to-carbon multiple bonds, e.g. unsaturated aldehydes
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
1,214,882. Production of acrylonitrile. FARBENFABRIKEN BAYER A.G., and ERDOLCHEMIE G.m.b.H. 23 Aug., 1968 [7 Sept., 1967], No. 40441/68. Heading C2C. In a process for the production of acrylonitrile from propylene, oxygen and ammonia the reaction gases leaving the reactor which, in addition to acrylonitrile, hydrocyanic acid and acetonitrile, also contain ammonia and highboiling and polymeric organic compounds, are passed through a washer containing a saturated solution of ammonium sulphate and sulphuric acid and, optionally, crystalline ammonium sulphate, the ammonia from the fed gas being combined in the form of ammonium sulphate, whilst the high-boiling and polymeric compounds are deposited on the surface of the ammonium sulphate solution in the form of a tarry product and the acrylonitrile, hydrocyanic acid and acetonitrile components of the feed gas pass through the ammonium sulphate wash without being absorbed. The ammonium sulphate solution preferably contains from 2 to 5% by wt. of sulphuric acid, and temperature of the gas on entry into the washer is suitably between 70‹ and 250‹ C., whilst the temperature of the washing solution is suitably between 80‹ and 95‹ C. Before entering the ammonium sulphate washer, the reaction gas may be washed with water.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1967E0034731 DE1643941B2 (en) | 1967-09-07 | 1967-09-07 | PROCESS FOR THE SEPARATION OF AMMONIA FROM THE REACTION GASES PRODUCED IN THE PRODUCTION OF ACRYLIC NITRILE FROM PROPYLENE |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1214882A true GB1214882A (en) | 1970-12-09 |
Family
ID=7076951
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4044168A Expired GB1214882A (en) | 1967-09-07 | 1968-08-23 | Process for the production of acrylonitrile |
Country Status (7)
Country | Link |
---|---|
AT (1) | AT284080B (en) |
BE (1) | BE720511A (en) |
DE (1) | DE1643941B2 (en) |
FR (1) | FR1583326A (en) |
GB (1) | GB1214882A (en) |
IT (1) | IT845600A (en) |
NL (1) | NL164022C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003097583A1 (en) * | 2002-05-16 | 2003-11-27 | The Standard Oil Company | Ammoxidation of carboxylic acids to a mixture of nitriles |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4148865A (en) * | 1978-01-06 | 1979-04-10 | The Lummus Company | Treatment of cyanide byproduct in nitrile production |
-
0
- IT IT845600D patent/IT845600A/it unknown
-
1967
- 1967-09-07 DE DE1967E0034731 patent/DE1643941B2/en active Granted
-
1968
- 1968-08-08 AT AT775168A patent/AT284080B/en active
- 1968-08-23 GB GB4044168A patent/GB1214882A/en not_active Expired
- 1968-09-05 NL NL6812659A patent/NL164022C/en not_active IP Right Cessation
- 1968-09-06 FR FR1583326D patent/FR1583326A/fr not_active Expired
- 1968-09-06 BE BE720511D patent/BE720511A/xx unknown
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003097583A1 (en) * | 2002-05-16 | 2003-11-27 | The Standard Oil Company | Ammoxidation of carboxylic acids to a mixture of nitriles |
US6982342B2 (en) | 2002-05-16 | 2006-01-03 | Standard Oil Company | Ammoxidation of carboxylic acids to a mixture of nitriles |
Also Published As
Publication number | Publication date |
---|---|
AT284080B (en) | 1970-08-25 |
BE720511A (en) | 1969-03-06 |
DE1643941B2 (en) | 1976-06-16 |
FR1583326A (en) | 1969-10-24 |
IT845600A (en) | |
NL164022B (en) | 1980-06-16 |
NL6812659A (en) | 1969-03-11 |
DE1643941A1 (en) | 1971-08-05 |
NL164022C (en) | 1980-11-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |