GB1378273A - Purification of hexamethylenediamine - Google Patents
Purification of hexamethylenediamineInfo
- Publication number
- GB1378273A GB1378273A GB289773A GB289773A GB1378273A GB 1378273 A GB1378273 A GB 1378273A GB 289773 A GB289773 A GB 289773A GB 289773 A GB289773 A GB 289773A GB 1378273 A GB1378273 A GB 1378273A
- Authority
- GB
- United Kingdom
- Prior art keywords
- hexamethylenediamine
- hexamethylene diamine
- purification
- hydroxide
- base
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
1378273 Hexamethylenediamine EIDUPONT DE NEMOURS & CO 19 Jan 1973 [21 April 1972] 2897/73 Heading C2C Hexamethylene diamine is purified by distilling it under reduced pressure in the presence of 1 to 25 p.p.m. of a strong base, e.g. an alkali metal hydroxide, calcium hydroxide or a.quaternary ammonium hydroxide. Preferably the base is added to the hexamethylene diamine as an aqueous solution.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US24642572A | 1972-04-21 | 1972-04-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1378273A true GB1378273A (en) | 1974-12-27 |
Family
ID=22930626
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB289773A Expired GB1378273A (en) | 1972-04-21 | 1973-01-19 | Purification of hexamethylenediamine |
Country Status (8)
Country | Link |
---|---|
JP (1) | JPS4914409A (en) |
BE (1) | BE794576A (en) |
CA (1) | CA1000230A (en) |
DE (1) | DE2304303A1 (en) |
FR (1) | FR2180653A1 (en) |
GB (1) | GB1378273A (en) |
IT (1) | IT978438B (en) |
NL (1) | NL7301392A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0184154A1 (en) * | 1984-12-03 | 1986-06-11 | The B.F. GOODRICH Company | Purification of 1-(2-Amino-2-alkylpropyl)-3,3,5,5,-tetraalkylpiperazinones |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4223776C1 (en) * | 1992-07-18 | 1993-09-16 | Mercedes-Benz Aktiengesellschaft, 70327 Stuttgart, De | Recycling amine from sand moulding process - by progressively increasing pH of used gases in solution and removing amine by gravity separation |
-
0
- BE BE794576D patent/BE794576A/en unknown
-
1973
- 1973-01-19 GB GB289773A patent/GB1378273A/en not_active Expired
- 1973-01-24 IT IT1956973A patent/IT978438B/en active
- 1973-01-24 CA CA161,920A patent/CA1000230A/en not_active Expired
- 1973-01-30 DE DE19732304303 patent/DE2304303A1/en not_active Ceased
- 1973-01-30 FR FR7303247A patent/FR2180653A1/fr not_active Withdrawn
- 1973-01-31 JP JP1207173A patent/JPS4914409A/ja active Pending
- 1973-01-31 NL NL7301392A patent/NL7301392A/xx unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0184154A1 (en) * | 1984-12-03 | 1986-06-11 | The B.F. GOODRICH Company | Purification of 1-(2-Amino-2-alkylpropyl)-3,3,5,5,-tetraalkylpiperazinones |
Also Published As
Publication number | Publication date |
---|---|
CA1000230A (en) | 1976-11-23 |
BE794576A (en) | 1973-07-26 |
FR2180653A1 (en) | 1973-11-30 |
IT978438B (en) | 1974-09-20 |
NL7301392A (en) | 1973-10-23 |
JPS4914409A (en) | 1974-02-07 |
DE2304303A1 (en) | 1973-11-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |