FR2428626A1 - Procede de cyanoethylation en continu - Google Patents
Procede de cyanoethylation en continuInfo
- Publication number
- FR2428626A1 FR2428626A1 FR7915517A FR7915517A FR2428626A1 FR 2428626 A1 FR2428626 A1 FR 2428626A1 FR 7915517 A FR7915517 A FR 7915517A FR 7915517 A FR7915517 A FR 7915517A FR 2428626 A1 FR2428626 A1 FR 2428626A1
- Authority
- FR
- France
- Prior art keywords
- cyanoethylation
- continuous
- product
- effluent
- zone
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C253/00—Preparation of carboxylic acid nitriles
- C07C253/30—Preparation of carboxylic acid nitriles by reactions not involving the formation of cyano groups
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C253/00—Preparation of carboxylic acid nitriles
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C253/00—Preparation of carboxylic acid nitriles
- C07C253/32—Separation; Purification; Stabilisation; Use of additives
- C07C253/34—Separation; Purification
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C255/00—Carboxylic acid nitriles
- C07C255/01—Carboxylic acid nitriles having cyano groups bound to acyclic carbon atoms
- C07C255/19—Carboxylic acid nitriles having cyano groups bound to acyclic carbon atoms containing cyano groups and carboxyl groups, other than cyano groups, bound to the same saturated acyclic carbon skeleton
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C255/00—Carboxylic acid nitriles
- C07C255/01—Carboxylic acid nitriles having cyano groups bound to acyclic carbon atoms
- C07C255/23—Carboxylic acid nitriles having cyano groups bound to acyclic carbon atoms containing cyano groups and carboxyl groups, other than cyano groups, bound to the same unsaturated acyclic carbon skeleton
-
- 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
- Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Procédé pour améliorer la sélectivité des réactions de cyanoéthylation en continu, des composés organiques possédant un atome d'hydrogène labile. Il consiste à recycler vers la zone de réaction 50 à 90 % en poids du produit effluent de ladite zone, et contenant le produit de cyanoéthylation voulu; cette portion de produit effluent y est mise en contact avec des quantités renouvelées du composé organique, d'acrylonitrile et de catalyseur de cyanoéthylation. Ce procédé convient particulièrement pour la cyanoéthylation des polyols, et plus particulièrement de l'éthylène glycol.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US91639378A | 1978-06-16 | 1978-06-16 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2428626A1 true FR2428626A1 (fr) | 1980-01-11 |
FR2428626B3 FR2428626B3 (fr) | 1982-05-21 |
Family
ID=25437200
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7915517A Granted FR2428626A1 (fr) | 1978-06-16 | 1979-06-18 | Procede de cyanoethylation en continu |
Country Status (6)
Country | Link |
---|---|
JP (1) | JPS554380A (fr) |
CA (1) | CA1119193A (fr) |
DE (1) | DE2924133A1 (fr) |
FR (1) | FR2428626A1 (fr) |
GB (1) | GB2023143B (fr) |
IT (1) | IT1121805B (fr) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0135725B1 (fr) * | 1983-08-02 | 1989-03-08 | Tosoh Corporation | Procédé de préparation de polyamines |
JPS60102154A (ja) * | 1983-11-07 | 1985-06-06 | フエジエル メグイエイ ガボナフオルガルミ エス マロミパリ バララツト | 澱粉質製品の製造法 |
US5075507A (en) * | 1988-08-01 | 1991-12-24 | Air Products And Chemicals, Inc. | Process for the preparation of bis(aminopropyl)aliphatic glycols |
US5081305A (en) * | 1988-10-13 | 1992-01-14 | Air Products And Chemicals, Inc. | Process for the preparation of bis(aminopropoxy)alkanes |
KR101440529B1 (ko) * | 2011-03-18 | 2014-09-17 | 주식회사 엘지화학 | 디니트릴 화합물의 제조방법 |
JP2013075837A (ja) * | 2011-09-29 | 2013-04-25 | Fujifilm Corp | ニトリル化合物の製造方法 |
US11698858B2 (en) | 2021-08-19 | 2023-07-11 | Micron Technology, Inc. | Prediction based garbage collection |
US11989421B2 (en) | 2021-08-19 | 2024-05-21 | Micron Technology, Inc. | Adjustable data protection scheme using artificial intelligence |
CN114632489A (zh) * | 2022-05-18 | 2022-06-17 | 山东海科新源材料科技股份有限公司 | 一种乙二醇双(丙腈)醚粗品合成方法及装置 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1054685A (fr) * | 1963-04-20 | |||
JPS5710869B2 (fr) * | 1973-10-05 | 1982-03-01 |
-
1979
- 1979-06-15 CA CA000329897A patent/CA1119193A/fr not_active Expired
- 1979-06-15 DE DE19792924133 patent/DE2924133A1/de active Granted
- 1979-06-15 JP JP7476579A patent/JPS554380A/ja active Granted
- 1979-06-15 IT IT23644/79A patent/IT1121805B/it active
- 1979-06-15 GB GB7921012A patent/GB2023143B/en not_active Expired
- 1979-06-18 FR FR7915517A patent/FR2428626A1/fr active Granted
Also Published As
Publication number | Publication date |
---|---|
DE2924133C2 (fr) | 1989-08-24 |
FR2428626B3 (fr) | 1982-05-21 |
GB2023143A (en) | 1979-12-28 |
CA1119193A (fr) | 1982-03-02 |
JPS638937B2 (fr) | 1988-02-25 |
GB2023143B (en) | 1982-11-03 |
IT1121805B (it) | 1986-04-23 |
IT7923644A0 (it) | 1979-06-15 |
DE2924133A1 (de) | 1979-12-20 |
JPS554380A (en) | 1980-01-12 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR2428626A1 (fr) | Procede de cyanoethylation en continu | |
Caple et al. | Addition of butyllithiums to benzonorbornadiene and 1, 4-dihydronaphthalene 1, 4-endo-oxide | |
US4259534A (en) | Method for the production of 2,4,6-tri(3,5-ditertiary butyl-4-hydroxybenzyl) mesitylene | |
FR2355040A1 (fr) | Initiateurs pour des reactions avec des isocyanates | |
FR2445309A1 (fr) | Procede d'extraction de l'acetone du melange produit par la reaction catalysee de carbonylation de l'acetate de methyle | |
US2713599A (en) | Production of tertiary aromatic alcohols | |
Shono et al. | The Hofmann rearrangement induced by electroogranic method. | |
FR2428627A1 (fr) | Procede de cyanoalkylation hautement selective | |
FR2364689A1 (fr) | Procede de presulfuration d'un catalyseur de desulfuration | |
Protasiewicz et al. | Di-tert-butyl hyponitrite as a source of alkoxyl radicals for dimerization | |
US3391209A (en) | Di(omega-alkenyl) methylcyclopentanes | |
US4006194A (en) | Production of phenols | |
US2532515A (en) | Catalytic condensation of furans with compounds capable of yielding hydrocarbon radicals | |
CA1120051A (fr) | Procede d'obtention de polycarbamates de polyphenyle et de polymethylene | |
US4271089A (en) | Cyanoalkylation process | |
US3965174A (en) | Process for preparing N,N-disubstituted acid hydrazides | |
US4275218A (en) | Sulfolene hydrogenation | |
Katayama et al. | Convenient synthesis of sulfur ylides by reaction of active methylene compounds with Corey-Kim reagent. | |
KR950011121B1 (ko) | 2,6-디-3급 부틸-4-머캅토페놀 및 4,4'-이소프로필리덴디티오-비스-(2,6-디-3급 부틸페놀)의 제조방법 | |
Masuda et al. | KINETICS OF THE REACTION OF SULFIMIDES WITH POTASSIUM HYDROXIDE IN METHANOL | |
FR2362123A1 (fr) | Procede de preparation d'isocyanates organiques, par reaction tert-alkyl-urethannes avec du phosgene et produits obtenus | |
GB991789A (en) | Catalytic reduction of 3-chloronitrobenzenes | |
DE3365276D1 (en) | Processes for making 3-methylthiophene-2-carboxaldehyde and intermediates therefor | |
US3132180A (en) | Catalytic reduction of aromatic mononitro compounds | |
Tanaka | Studies of Thioiminocarbonates. II. The Cyanide Ioncatalyzed Addition of Alcohols to Thiocyanates |