DD130930A5 - Verfahren zum abtrennen von 4,4'-diaminodiphenylmethan in praktisch reiner form aus mischungen desselben mit dem entsprechenden 2,4'-isomeren - Google Patents
Verfahren zum abtrennen von 4,4'-diaminodiphenylmethan in praktisch reiner form aus mischungen desselben mit dem entsprechenden 2,4'-isomerenInfo
- Publication number
- DD130930A5 DD130930A5 DD7700199122A DD19912277A DD130930A5 DD 130930 A5 DD130930 A5 DD 130930A5 DD 7700199122 A DD7700199122 A DD 7700199122A DD 19912277 A DD19912277 A DD 19912277A DD 130930 A5 DD130930 A5 DD 130930A5
- Authority
- DD
- German Democratic Republic
- Prior art keywords
- isomera
- diaminodiphenylmethane
- mixtures
- separation
- same
- Prior art date
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
- C07C209/68—Preparation of compounds containing amino groups bound to a carbon skeleton from amines, by reactions not involving amino groups, e.g. reduction of unsaturated amines, aromatisation, or substitution of the carbon skeleton
- C07C209/78—Preparation of compounds containing amino groups bound to a carbon skeleton from amines, by reactions not involving amino groups, e.g. reduction of unsaturated amines, aromatisation, or substitution of the carbon skeleton from carbonyl compounds, e.g. from formaldehyde, and amines having amino groups bound to carbon atoms of six-membered aromatic rings, with formation of methylene-diarylamines
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/693,081 US4201722A (en) | 1976-06-04 | 1976-06-04 | Process for separating 4,4'-diaminodiphenylmethane |
Publications (1)
Publication Number | Publication Date |
---|---|
DD130930A5 true DD130930A5 (de) | 1978-05-17 |
Family
ID=24783232
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DD7700199122A DD130930A5 (de) | 1976-06-04 | 1977-05-25 | Verfahren zum abtrennen von 4,4'-diaminodiphenylmethan in praktisch reiner form aus mischungen desselben mit dem entsprechenden 2,4'-isomeren |
Country Status (13)
Country | Link |
---|---|
US (1) | US4201722A (de) |
JP (1) | JPS5948819B2 (de) |
BE (1) | BE855402A (de) |
BR (1) | BR7703390A (de) |
DD (1) | DD130930A5 (de) |
DE (1) | DE2719996C2 (de) |
ES (1) | ES458768A1 (de) |
FR (1) | FR2353518A1 (de) |
GB (1) | GB1546349A (de) |
IT (1) | IT1078289B (de) |
MX (1) | MX145854A (de) |
NL (1) | NL7705499A (de) |
SU (1) | SU718006A3 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0009094B1 (de) * | 1978-09-12 | 1982-04-14 | GebràDer Sulzer Aktiengesellschaft | Verfahren zur Herstellung von Methylenbrücken aufweisenden Polyarylaminen |
PT1979306E (pt) * | 2006-01-20 | 2013-06-11 | Basf Se | Processo para preparação simultânea de 4,4¿-difenilmetanodiamina e difenilmetano diisocianato e polifenilenopolimetileno poliisocianatos |
US10759736B2 (en) | 2018-10-17 | 2020-09-01 | Covestro Deutschland Ag | Process for the preparation of di- and polyamines of the diphenylmethane series |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2149525A (en) * | 1934-10-18 | 1939-03-07 | Monsanto Chemicals | Separation of aminodiphenyls |
GB808425A (en) * | 1954-08-21 | 1959-02-04 | Takashige Tojo | Improvements in or relating to the separation of aromatic amines |
US2938054A (en) * | 1958-02-18 | 1960-05-24 | Allied Chem | Process for purification of 4, 4'-methylenedianiline |
US3175007A (en) * | 1961-08-14 | 1965-03-23 | Dow Chemical Co | Purification of dianilines |
US3410906A (en) * | 1965-10-15 | 1968-11-12 | Phillips Petroleum Co | Process of separating amines |
US3542871A (en) * | 1968-07-29 | 1970-11-24 | Upjohn Co | Purification of 4,4'-methylene dianiline by crystallization |
DE2238920C3 (de) * | 1972-08-08 | 1984-09-27 | Bayer Ag, 5090 Leverkusen | Verfahren zur Herstellung von Polyaminen |
CA1004234A (en) * | 1972-08-04 | 1977-01-25 | Bayer Aktiengesellschaft | Process for the production of polyamines |
DE2238379C3 (de) * | 1972-08-04 | 1984-08-30 | Bayer Ag, 5090 Leverkusen | Verfahren zur Herstellung von Polyaminen |
US4029705A (en) * | 1975-08-18 | 1977-06-14 | The Upjohn Company | Purification process for MDA |
-
1976
- 1976-06-04 US US05/693,081 patent/US4201722A/en not_active Expired - Lifetime
-
1977
- 1977-05-04 DE DE2719996A patent/DE2719996C2/de not_active Expired
- 1977-05-09 GB GB19353/77A patent/GB1546349A/en not_active Expired
- 1977-05-11 MX MX169100A patent/MX145854A/es unknown
- 1977-05-13 ES ES458768A patent/ES458768A1/es not_active Expired
- 1977-05-18 NL NL7705499A patent/NL7705499A/xx not_active Application Discontinuation
- 1977-05-19 IT IT49480/77A patent/IT1078289B/it active
- 1977-05-25 DD DD7700199122A patent/DD130930A5/de unknown
- 1977-05-26 BR BR7703390A patent/BR7703390A/pt unknown
- 1977-06-03 JP JP52064972A patent/JPS5948819B2/ja not_active Expired
- 1977-06-03 FR FR7717038A patent/FR2353518A1/fr active Granted
- 1977-06-03 BE BE178208A patent/BE855402A/xx not_active IP Right Cessation
- 1977-06-03 SU SU772488999A patent/SU718006A3/ru active
Also Published As
Publication number | Publication date |
---|---|
JPS5948819B2 (ja) | 1984-11-29 |
DE2719996C2 (de) | 1986-06-26 |
US4201722A (en) | 1980-05-06 |
IT1078289B (it) | 1985-05-08 |
SU718006A3 (ru) | 1980-02-25 |
ES458768A1 (es) | 1978-03-16 |
FR2353518B1 (de) | 1983-09-09 |
FR2353518A1 (fr) | 1977-12-30 |
BE855402A (fr) | 1977-12-05 |
NL7705499A (nl) | 1977-12-06 |
MX145854A (es) | 1982-04-07 |
GB1546349A (en) | 1979-05-23 |
JPS52148055A (en) | 1977-12-08 |
DE2719996A1 (de) | 1977-12-15 |
BR7703390A (pt) | 1978-02-28 |
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