GB900357A - Process for the manufacture of adipo-dinitrile - Google Patents
Process for the manufacture of adipo-dinitrileInfo
- Publication number
- GB900357A GB900357A GB2057560A GB2057560A GB900357A GB 900357 A GB900357 A GB 900357A GB 2057560 A GB2057560 A GB 2057560A GB 2057560 A GB2057560 A GB 2057560A GB 900357 A GB900357 A GB 900357A
- Authority
- GB
- United Kingdom
- Prior art keywords
- kieselguhr
- adiponitrile
- nickel
- treating
- hydrogen
- 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
- C07C209/00—Preparation of compounds containing amino groups bound to a carbon skeleton
- C07C209/44—Preparation of compounds containing amino groups bound to a carbon skeleton by reduction of carboxylic acids or esters thereof in presence of ammonia or amines, or by reduction of nitriles, carboxylic acid amides, imines or imino-ethers
- C07C209/48—Preparation of compounds containing amino groups bound to a carbon skeleton by reduction of carboxylic acids or esters thereof in presence of ammonia or amines, or by reduction of nitriles, carboxylic acid amides, imines or imino-ethers by reduction of nitriles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C255/00—Carboxylic acid nitriles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/02—Impregnation, coating or precipitation
- B01J37/0201—Impregnation
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
Nickel catalysts activated with an alkali-metal oxide and supported on a carrier, e.g. kieselguhr or silica gel, are used for the hydrogenation of 1:2-dicyanobutane to adiponitrile. The catalyst may be prepared by impregnating natural kieselguhr with an aqueous soultion of nickelous chloride, treating at 70 DEG -80 DEG C. with a sodium carbonate solution, drying and reducing with hydrogen at 350 DEG C. Ferric, aluminium, potassium and sodium oxides are present with the nickel and silicon dioxide. Hydrogenation of adiponitrile to hexamethylene diamine may be effected in the presence of Raney cobalt.ALSO:Adiponitrile is prepared by treating 1 : 2-dicyanobutane, dissolved in a polar organic solvent, with hydrogen at a temperature between 200 and 400 DEG C., under a pressure above 100 atmospheres, in the presence of a nickel catalyst activated with an alkali metal oxide and supported on a carrier. The reaction mixture is in the form of a solution and dioxan is preferred as the solvent. The catalyst carrier may be kieselguhr or silica gel, and a nickel catalyst containing metal oxides prepared by impregnating kieselguhr with aqueous nickelous chloride, treating with sodium carbonate, drying and reducing with hydrogen at about 350 DEG C., is used in examples. The product may be further reduced in a second stage, e.g. in the presence of Raney cobalt, to hexamethylene diamine. Specifications 900,356 and 900,358 are referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEK38187A DE1104936B (en) | 1959-07-11 | 1959-07-11 | Process for the production of adipic dinitrile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB900357A true GB900357A (en) | 1962-07-04 |
Family
ID=7221288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2057560A Expired GB900357A (en) | 1959-07-11 | 1960-06-10 | Process for the manufacture of adipo-dinitrile |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE592835A (en) |
| CH (1) | CH410896A (en) |
| DE (1) | DE1104936B (en) |
| GB (1) | GB900357A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112939784A (en) * | 2021-02-04 | 2021-06-11 | 山西铁峰化工有限公司 | Industrial preparation method of hexamethylene diamine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2439308A (en) * | 1946-07-18 | 1948-04-06 | Du Pont | Process for simultaneous dimerization and reduction |
-
1959
- 1959-07-11 DE DEK38187A patent/DE1104936B/en active Pending
-
1960
- 1960-05-19 CH CH574960A patent/CH410896A/en unknown
- 1960-06-10 GB GB2057560A patent/GB900357A/en not_active Expired
- 1960-07-11 BE BE592835A patent/BE592835A/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112939784A (en) * | 2021-02-04 | 2021-06-11 | 山西铁峰化工有限公司 | Industrial preparation method of hexamethylene diamine |
Also Published As
| Publication number | Publication date |
|---|---|
| BE592835A (en) | 1960-10-31 |
| CH410896A (en) | 1966-04-15 |
| DE1104936B (en) | 1961-04-20 |
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