GB1181292A - The Continuous Production of Acrylonitrile or Methacrylonitrile - Google Patents
The Continuous Production of Acrylonitrile or MethacrylonitrileInfo
- Publication number
- GB1181292A GB1181292A GB08596/67A GB1859667A GB1181292A GB 1181292 A GB1181292 A GB 1181292A GB 08596/67 A GB08596/67 A GB 08596/67A GB 1859667 A GB1859667 A GB 1859667A GB 1181292 A GB1181292 A GB 1181292A
- Authority
- GB
- United Kingdom
- Prior art keywords
- catalyst
- oxygen
- methacrylonitrile
- acrylonitrile
- passage
- 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
-
- 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)
- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
1,181,292. Production of acrylonitrile and methacrylonitrile. MONTECATINI EDISON S.p.A. 21 April, 1967 [28 April, 1966], No. 18596/67. Heading C2C. Acrylonitrile or methacrylonitrile are continuously produced by the passage at high temperatures of a gaseous reaction mixture of propylene or isobutylene respectively, ammonia and oxygen through a fluidized bed of a solid oxidation catalyst in a reactor provided with one or more cyclones for the separation of catalyst entrained with the gaseous mixture, the or each cyclone having a return passage through which the separated entrained catalyst is returned to the fluidized bed, and in which oxygen is added to the return passage of the or each cyclone for the oxidative regeneration of the catalyst being returned to the bed. The oxygen employed may be pure oxygen or a free oxygen containing 3% by volume, e.g. air, or air enriched with oxygen, and it is suitably added to the return passage or passages such that its linear velocity is greater than the minimum velocity for fluidization, and less than the entrainment velocity of the catalyst passage or passages. The catalyst is preferably regenerated at a temperature of at least the reaction temperature in the fluidized bed.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT958466 | 1966-04-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1181292A true GB1181292A (en) | 1970-02-11 |
Family
ID=11132475
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB08596/67A Expired GB1181292A (en) | 1966-04-28 | 1967-04-21 | The Continuous Production of Acrylonitrile or Methacrylonitrile |
Country Status (8)
Country | Link |
---|---|
CH (1) | CH487852A (en) |
DK (1) | DK130177B (en) |
GB (1) | GB1181292A (en) |
IL (1) | IL27843A (en) |
LU (1) | LU53486A1 (en) |
NL (1) | NL151696B (en) |
NO (1) | NO123525B (en) |
SE (1) | SE342440B (en) |
-
1967
- 1967-04-20 NL NL676705562A patent/NL151696B/en unknown
- 1967-04-21 LU LU53486D patent/LU53486A1/xx unknown
- 1967-04-21 IL IL27843A patent/IL27843A/en unknown
- 1967-04-21 GB GB08596/67A patent/GB1181292A/en not_active Expired
- 1967-04-25 DK DK219267AA patent/DK130177B/en unknown
- 1967-04-27 CH CH602367A patent/CH487852A/en not_active IP Right Cessation
- 1967-04-27 NO NO167917A patent/NO123525B/no unknown
- 1967-04-28 SE SE6034/67A patent/SE342440B/xx unknown
Also Published As
Publication number | Publication date |
---|---|
IL27843A (en) | 1970-12-24 |
DK130177C (en) | 1975-06-16 |
CH487852A (en) | 1970-03-31 |
NO123525B (en) | 1971-12-06 |
NL151696B (en) | 1976-12-15 |
NL6705562A (en) | 1967-10-30 |
SE342440B (en) | 1972-02-07 |
DK130177B (en) | 1975-01-06 |
LU53486A1 (en) | 1967-06-21 |
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