GB974787A - Process for the production of methylene-bis-iminodiacetonitrile - Google Patents
Process for the production of methylene-bis-iminodiacetonitrileInfo
- Publication number
- GB974787A GB974787A GB4085660A GB4085660A GB974787A GB 974787 A GB974787 A GB 974787A GB 4085660 A GB4085660 A GB 4085660A GB 4085660 A GB4085660 A GB 4085660A GB 974787 A GB974787 A GB 974787A
- Authority
- GB
- United Kingdom
- Prior art keywords
- formaldehyde
- iminodiacetonitrile
- methylene
- bis
- production
- 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
- C07C255/00—Carboxylic acid nitriles
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
A product consisting substantially of methylene -bis-iminodiacetonitrile is obtained by reacting hexamethylene tetramine or the equivalent amounts of formaldehyde and ammonia with one mole of hydrocyanic acid per mole of formaldehyde or formaldehyde equivalent in the hexamethylene tetramine, in the presence of a solvent (e.g. water or methanol), and subsequently acidifying the reaction mixture with a strong mineral acid (e.g. HCl, H2SO4 or HClO4) using 1.2 to 2.26 equivalents of acid per mole of liberated ammonia. The reaction with the hydrocyanic acid is preferably effected at from -10 DEG to +20 DEG C.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DED0032049 | 1959-12-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB974787A true GB974787A (en) | 1964-11-11 |
Family
ID=7041159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4085660A Expired GB974787A (en) | 1959-12-04 | 1960-11-28 | Process for the production of methylene-bis-iminodiacetonitrile |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB974787A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3532735A (en) * | 1968-10-07 | 1970-10-06 | Grace W R & Co | Preparation of methylenebisiminodiacetonitrile |
| US3679729A (en) * | 1968-08-13 | 1972-07-25 | Grace W R & Co | Continuous process for preparing methylenebisiminodiacetonitrile |
| US3679728A (en) * | 1968-08-13 | 1972-07-25 | Grace W R & Co | Process for preparing methylenebisiminodiacetonitrile |
| US3984453A (en) * | 1966-04-26 | 1976-10-05 | Stauffer Chemical Company | Process for preparing nitrilotriacetonitrile |
-
1960
- 1960-11-28 GB GB4085660A patent/GB974787A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3984453A (en) * | 1966-04-26 | 1976-10-05 | Stauffer Chemical Company | Process for preparing nitrilotriacetonitrile |
| US3679729A (en) * | 1968-08-13 | 1972-07-25 | Grace W R & Co | Continuous process for preparing methylenebisiminodiacetonitrile |
| US3679728A (en) * | 1968-08-13 | 1972-07-25 | Grace W R & Co | Process for preparing methylenebisiminodiacetonitrile |
| US3532735A (en) * | 1968-10-07 | 1970-10-06 | Grace W R & Co | Preparation of methylenebisiminodiacetonitrile |
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