GB1154226A - Aminoacetonitriles - Google Patents
AminoacetonitrilesInfo
- Publication number
- GB1154226A GB1154226A GB39134/66A GB3913466A GB1154226A GB 1154226 A GB1154226 A GB 1154226A GB 39134/66 A GB39134/66 A GB 39134/66A GB 3913466 A GB3913466 A GB 3913466A GB 1154226 A GB1154226 A GB 1154226A
- Authority
- GB
- United Kingdom
- Prior art keywords
- stage
- mother liquor
- iii
- salt
- aminoacetonitriles
- 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
-
- 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
- Y02P20/582—Recycling of unreacted starting or intermediate materials
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
1,154,226. Aminonitriles. STANDARD OIL CO. 1 Sept., 1966 [29 Nov., 1965], No. 39134/66. Heading C2C. Aminoacetonitriles are obtained by (i) reacting in an acidic environment (A) ammonia or a mono- or polyprimary or secondary amine containing 1-20 carbon atoms in the form of its salt with a strong protic acid; (B) formaldehyde, and (C) hydrogen cyanide, under autogenous pressure at 40-120‹ C., (ii) cooling at least a part of the reaction mixture resulting from stage (i) to a temperature below 40‹ C. and separating the aminoacetonitrile from the mother liquor, (iii) replenishing the mother liquor from stage (ii) with reactants substantially in the same molar proportions as they were consumed in forming the aminonitrile, and (iv) recycling the replenished mother liquor from stage (iii) back to stage (i). In the examples nitrilotriacetonitrile, ethylamine diacetonitrile and ethylenediamine tetraacetonitrile are prepared and the latter is converted to the tetrasodium salt of ethylene diamine tetra-acetic acid.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US51036465A | 1965-11-29 | 1965-11-29 | |
| US56163666A | 1966-06-29 | 1966-06-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1154226A true GB1154226A (en) | 1969-06-04 |
Family
ID=27056882
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB39134/66A Expired GB1154226A (en) | 1965-11-29 | 1966-09-01 | Aminoacetonitriles |
| GB28881/67A Expired GB1179959A (en) | 1965-11-29 | 1967-06-22 | Improved Process for Manufacture of Aminonitriles. |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB28881/67A Expired GB1179959A (en) | 1965-11-29 | 1967-06-22 | Improved Process for Manufacture of Aminonitriles. |
Country Status (5)
| Country | Link |
|---|---|
| BE (2) | BE690034A (en) |
| DE (2) | DE1543914A1 (en) |
| FR (1) | FR1501552A (en) |
| GB (2) | GB1154226A (en) |
| NL (2) | NL6616386A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4948909A (en) * | 1989-08-14 | 1990-08-14 | Monsanto Company | Process for the preparation of iminodiacetonitrile and iminodiacetic acid |
-
1966
- 1966-09-01 GB GB39134/66A patent/GB1154226A/en not_active Expired
- 1966-11-21 NL NL6616386A patent/NL6616386A/xx unknown
- 1966-11-22 BE BE690034D patent/BE690034A/xx unknown
- 1966-11-23 FR FR84730A patent/FR1501552A/en not_active Expired
- 1966-11-24 DE DE19661543914 patent/DE1543914A1/en active Pending
-
1967
- 1967-06-22 GB GB28881/67A patent/GB1179959A/en not_active Expired
- 1967-06-23 BE BE700456D patent/BE700456A/xx unknown
- 1967-06-23 NL NL6708791A patent/NL6708791A/xx unknown
- 1967-06-28 DE DE19671618002 patent/DE1618002A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| FR1501552A (en) | 1967-11-10 |
| NL6616386A (en) | 1967-05-30 |
| BE690034A (en) | 1967-05-22 |
| DE1618002A1 (en) | 1970-08-20 |
| BE700456A (en) | 1967-12-27 |
| GB1179959A (en) | 1970-02-04 |
| DE1543914A1 (en) | 1970-02-05 |
| NL6708791A (en) | 1968-01-02 |
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