IT1079667B - Procedimento per l'isolamento di diammino-difenilmetani - Google Patents
Procedimento per l'isolamento di diammino-difenilmetaniInfo
- Publication number
- IT1079667B IT1079667B IT49542/77A IT4954277A IT1079667B IT 1079667 B IT1079667 B IT 1079667B IT 49542/77 A IT49542/77 A IT 49542/77A IT 4954277 A IT4954277 A IT 4954277A IT 1079667 B IT1079667 B IT 1079667B
- Authority
- IT
- Italy
- Prior art keywords
- diammin
- diphenylmethane
- insulation
- procedure
- diphenylmethane insulation
- 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
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C209/00—Preparation of compounds containing amino groups bound to a carbon skeleton
- C07C209/82—Purification; Separation; Stabilisation; Use of additives
- C07C209/84—Purification
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C211/00—Compounds containing amino groups bound to a carbon skeleton
- C07C211/43—Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton
- C07C211/44—Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton having amino groups bound to only one six-membered aromatic ring
- C07C211/49—Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton having amino groups bound to only one six-membered aromatic ring having at least two amino groups bound to the carbon skeleton
- C07C211/50—Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton having amino groups bound to only one six-membered aromatic ring having at least two amino groups bound to the carbon skeleton with at least two amino groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/690,913 US4034039A (en) | 1976-05-28 | 1976-05-28 | Purification of methylenedianilines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IT1079667B true IT1079667B (it) | 1985-05-13 |
Family
ID=24774471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT49542/77A IT1079667B (it) | 1976-05-28 | 1977-05-24 | Procedimento per l'isolamento di diammino-difenilmetani |
Country Status (13)
| Country | Link |
|---|---|
| US (1) | US4034039A (it) |
| JP (1) | JPS52148054A (it) |
| BE (1) | BE855158A (it) |
| BR (1) | BR7703389A (it) |
| DD (1) | DD130931A5 (it) |
| DE (1) | DE2719997C2 (it) |
| ES (1) | ES458767A1 (it) |
| FR (1) | FR2352789A1 (it) |
| GB (1) | GB1519135A (it) |
| IT (1) | IT1079667B (it) |
| MX (1) | MX145853A (it) |
| NL (1) | NL7705750A (it) |
| SU (1) | SU667129A3 (it) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05331110A (ja) * | 1992-05-29 | 1993-12-14 | Sumitomo Chem Co Ltd | ４，４’−ジアミノジフェニルメタンの精製方法 |
| DE19529857A1 (de) * | 1995-08-14 | 1997-02-20 | Bayer Ag | Adduktkristallisate aus Bisphenol A und Bisphenol TMC |
| EP1979306B1 (de) * | 2006-01-20 | 2013-04-17 | Basf Se | Verfahren zur simultanen herstellung von 4,4'-diphenylmethandiamin sowie diphenylmethandiisocyanat und polyphenylenpolymethylenpolyisocyanaten |
| 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 (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1023040B (de) * | 1956-09-03 | 1958-01-23 | Teerverwertung Mit Beschraenkt | Verfahren zur Herstellung von reinstem Anilin aus Steinkohlenteer |
| US3682782A (en) * | 1968-07-11 | 1972-08-08 | Halcon International Inc | Reduced pressure distillation process for recovering aniline from phenolaniline mixtures |
| US3542871A (en) * | 1968-07-29 | 1970-11-24 | Upjohn Co | Purification of 4,4'-methylene dianiline by crystallization |
-
1976
- 1976-05-28 US US05/690,913 patent/US4034039A/en not_active Expired - Lifetime
-
1977
- 1977-05-04 DE DE2719997A patent/DE2719997C2/de not_active Expired
- 1977-05-04 GB GB18712/77A patent/GB1519135A/en not_active Expired
- 1977-05-11 MX MX169099A patent/MX145853A/es unknown
- 1977-05-13 ES ES458767A patent/ES458767A1/es not_active Expired
- 1977-05-24 IT IT49542/77A patent/IT1079667B/it active
- 1977-05-25 DD DD7700199123A patent/DD130931A5/xx unknown
- 1977-05-25 NL NL7705750A patent/NL7705750A/xx not_active Application Discontinuation
- 1977-05-26 BR BR7703389A patent/BR7703389A/pt unknown
- 1977-05-27 SU SU772485750A patent/SU667129A3/ru active
- 1977-05-27 BE BE178011A patent/BE855158A/xx not_active IP Right Cessation
- 1977-05-27 JP JP6130977A patent/JPS52148054A/ja active Pending
- 1977-05-31 FR FR7716520A patent/FR2352789A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| MX145853A (es) | 1982-04-07 |
| GB1519135A (en) | 1978-07-26 |
| DE2719997A1 (de) | 1977-12-08 |
| FR2352789A1 (fr) | 1977-12-23 |
| FR2352789B1 (it) | 1981-02-27 |
| DD130931A5 (de) | 1978-05-17 |
| DE2719997C2 (de) | 1986-07-03 |
| SU667129A3 (ru) | 1979-06-05 |
| US4034039A (en) | 1977-07-05 |
| ES458767A1 (es) | 1978-03-16 |
| JPS52148054A (en) | 1977-12-08 |
| BE855158A (fr) | 1977-11-28 |
| NL7705750A (nl) | 1977-11-30 |
| BR7703389A (pt) | 1978-02-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19950419 |