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'-isomeren

Info

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
Application number
DD7700199122A
Other languages
English (en)
Inventor
Kwok K Sun
Original Assignee
Upjohn Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Upjohn Co filed Critical Upjohn Co
Publication of DD130930A5 publication Critical patent/DD130930A5/de

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)
DD7700199122A 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 DD130930A5 (de)

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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE848T1 (de) * 1978-09-12 1982-04-15 Gebrueder Sulzer Aktiengesellschaft Verfahren zur herstellung von methylenbruecken aufweisenden polyarylaminen.
JP5158718B2 (ja) * 2006-01-20 2013-03-06 ビーエーエスエフ ソシエタス・ヨーロピア ４，４’−ジフェニルメタンジアミンと更にはジフェニルメタンジイソシアネート及びポリフェニレンポリメチレンポリイソシアネートとの同時製造方法
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)

* Cited by examiner, † Cited by third party
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
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
DE2238920C3 (de) * 1972-08-08 1984-09-27 Bayer Ag, 5090 Leverkusen Verfahren zur Herstellung von Polyaminen
US4029705A (en) * 1975-08-18 1977-06-14 The Upjohn Company Purification process for MDA

Also Published As

Publication number Publication date
DE2719996A1 (de) 1977-12-15
FR2353518B1 (de) 1983-09-09
JPS5948819B2 (ja) 1984-11-29
DE2719996C2 (de) 1986-06-26
NL7705499A (nl) 1977-12-06
IT1078289B (it) 1985-05-08
GB1546349A (en) 1979-05-23
BR7703390A (pt) 1978-02-28
MX145854A (es) 1982-04-07
BE855402A (fr) 1977-12-05
SU718006A3 (ru) 1980-02-25
US4201722A (en) 1980-05-06
ES458768A1 (es) 1978-03-16
JPS52148055A (en) 1977-12-08
FR2353518A1 (fr) 1977-12-30

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