GB1228495A - - Google Patents

Info

Publication number
GB1228495A
GB1228495A GB5580368A GB1228495DA GB1228495A GB 1228495 A GB1228495 A GB 1228495A GB 5580368 A GB5580368 A GB 5580368A GB 1228495D A GB1228495D A GB 1228495DA GB 1228495 A GB1228495 A GB 1228495A
Authority
GB
United Kingdom
Prior art keywords
formaldehyde
reactor
arylamine
catalyst
mixing vessel
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
Application number
GB5580368A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Publication of GB1228495A publication Critical patent/GB1228495A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72—Polyisocyanates or polyisothiocyanates
    • C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
    • C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
    • C08G18/7657—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings
    • C08G18/7664—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/18—Stationary reactors having moving elements inside
    • B01J19/1862—Stationary reactors having moving elements inside placed in series
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/00049—Controlling or regulating processes
    • B01J2219/00051—Controlling the temperature
    • B01J2219/00159—Controlling the temperature controlling multiple zones along the direction of flow, e.g. pre-heating and after-cooling
    • 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
    • Y02P20/584—Recycling of catalysts

Abstract

1,228,495. Methylene-bridged polyarylamines. IMPERIAL CHEMICAL INDUSTRIES Ltd. 7 Nov., 1969 [25 Nov., 1968; 30 Sept., 1969], Nos. 55803/68 and 48066/69. Heading C2C. A process for the manufacture of methylenebridged polyarylamines by the condensation of primary arylamines and formaldehyde in the presence of a catalyst is characterized in that the initial mixing of the main reactants formaldehyde and primary arylamine is carried out by feeding formaldehyde, primary arylamine and catalyst simultaneously in predetermined proportions into a mixing vessel through which a stream of partially reacted formaldehyde, arylamine and catalyst is being continuously recycled from a first reactor fed from the mixing vessel, and that a predetermined proportion of material from the first reactor is continuously fed to a further reactor or reactors for completion of the condensation. The molar proportion of arylamine to formaldehyde is preferably from 1- 5 :1 to 4 : 1; the temperature of the mixing vessel is suitably from 20‹ C. to 75‹ C. and that of the first reactor from 40‹ C. to 80‹ C. Suitable arylamines include aniline and ortho and meta C 1 , C 3 , C 4 and C 8 -alkyl anilines, ortho and meta-anisidines and -phenetidines, 1- naphthylamine, 1,5-naphthylene diamine, 2,4- and 2,6-tolylene diamines, o- and m-phenylene diamines, o- and m-chloro-, -bromo- and -nitro-anilines &c. Suitable catalysts are strong acids, strong Lewis acids, weak acids, acid salts, neutral salts and carbon dioxide. In examples 2,41- and 4,41-diaminodiphenyl methane and higher polyamines based thereon are prepared.
GB5580368A 1968-11-25 1968-11-25 Expired GB1228495A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB5580368 1968-11-25
GB4806669 1969-09-30

Publications (1)

Publication Number Publication Date
GB1228495A true GB1228495A (en) 1971-04-15

Family

ID=26266203

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5580368A Expired GB1228495A (en) 1968-11-25 1968-11-25

Country Status (4)

Country Link
DE (1) DE1959168A1 (en)
FR (1) FR2024209A1 (en)
GB (1) GB1228495A (en)
NL (1) NL6917710A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3971829A (en) * 1974-11-18 1976-07-27 Jefferson Chemical Company, Inc. Preparation of methylene-bridged polyphenylpolyamine mixtures
US3996283A (en) * 1972-08-04 1976-12-07 Bayer Aktiengesellschaft Process for the production of polyamines
US4064170A (en) * 1976-09-15 1977-12-20 Texaco Development Corporation Preparation of methylene-bridged polyarylpolyamine mixtures
US4189443A (en) * 1974-04-26 1980-02-19 Bayer Aktiengesellschaft Method for making a polyamine
EP0031423B1 (en) * 1979-11-26 1984-06-20 BASF Aktiengesellschaft Process for making polyphenyl polymethylene polyamines
FR2572398A1 (en) * 1984-10-30 1986-05-02 Ciba Geigy Ag ONE-STEP PROCESS FOR PREPARING BIS- (AMINO-NITRO-PHENYL) -METHANE
US20170137367A1 (en) * 2014-06-24 2017-05-18 Covestro Deutschland Ag Process for preparation of di- and polyamines of the diphenylmethane series
WO2021211832A1 (en) * 2020-04-15 2021-10-21 Fina Technology, Inc. Methods for production of high impact polystyrene having an improved rubber morphology

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1293879C2 (en) * 1967-06-10 1973-05-03 Dahl Manfred Partition wall for a cable duct
DE2557500A1 (en) * 1975-12-19 1977-06-30 Bayer Ag PROCESS FOR PRODUCING POLYAMINES
DE2557501A1 (en) * 1975-12-19 1977-06-30 Bayer Ag PROCESS FOR PRODUCING POLYAMINES
DE2750975A1 (en) * 1976-11-19 1978-05-24 Mobay Chemical Corp PROCESS FOR THE PRODUCTION OF POLYAMINES OF THE DIPHENYLMETHANE SERIES
DE10111337A1 (en) * 2001-03-08 2002-09-12 Basf Ag Process for the production of MDI, in particular 2.4'-MDI

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3996283A (en) * 1972-08-04 1976-12-07 Bayer Aktiengesellschaft Process for the production of polyamines
US4189443A (en) * 1974-04-26 1980-02-19 Bayer Aktiengesellschaft Method for making a polyamine
US3971829A (en) * 1974-11-18 1976-07-27 Jefferson Chemical Company, Inc. Preparation of methylene-bridged polyphenylpolyamine mixtures
US4064170A (en) * 1976-09-15 1977-12-20 Texaco Development Corporation Preparation of methylene-bridged polyarylpolyamine mixtures
EP0031423B1 (en) * 1979-11-26 1984-06-20 BASF Aktiengesellschaft Process for making polyphenyl polymethylene polyamines
FR2572398A1 (en) * 1984-10-30 1986-05-02 Ciba Geigy Ag ONE-STEP PROCESS FOR PREPARING BIS- (AMINO-NITRO-PHENYL) -METHANE
GB2166437A (en) * 1984-10-30 1986-05-08 Ciba Geigy Ag Single-stage process for producing bis-(amino-nitrophenyl)-methane
US5047591A (en) * 1984-10-30 1991-09-10 Ciba-Geigy Corporation Single-stage process for producing bis-(amino-nitrophenyl)-methane
US20170137367A1 (en) * 2014-06-24 2017-05-18 Covestro Deutschland Ag Process for preparation of di- and polyamines of the diphenylmethane series
US10689322B2 (en) * 2014-06-24 2020-06-23 Covestro Deutschland Ag Process for preparation of di- and polyamines of the diphenylmethane series
WO2021211832A1 (en) * 2020-04-15 2021-10-21 Fina Technology, Inc. Methods for production of high impact polystyrene having an improved rubber morphology
US11795259B2 (en) 2020-04-15 2023-10-24 Fina Technology, Inc. Methods for production of high impact polystyrene having an improved rubber morphology

Also Published As

Publication number Publication date
NL6917710A (en) 1970-05-27
FR2024209A1 (en) 1970-08-28
DE1959168A1 (en) 1970-07-30

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee