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公开(公告)号:BR9907634A
公开(公告)日:2000-11-14
申请号:BR9907634
申请日:1999-01-26
Applicant: BASF AG
Inventor: STROEFER ECKHARD , JACOBS JAN , SEYFERT WILFRIED , SCHWARZ HANS VOLKMAR , SCHWEERS OLAF , SCHARR VOLKER , PENZEL ULRICH
IPC: C07B61/00 , C07C209/78 , C07C211/45 , C07C211/50 , C07C263/10 , C07C265/14
Abstract: The production of methylene-di-phenylamine from aniline (A) and formaldehyde (F) with an acid catalyst (C) comprises placing (A) and possibly (C) in a reactor, feeding (F) and possibly (C) through a mixer into a circulation loop containing (A), possibly (C) and possibly (F), and heating to above 75 degrees C after adding at least 50% of the total (F). Independent claims are also included for: (a) mixtures containing methylene-di-phenylamine (MDA) obtained by this process; (b) a process for the production of polyisocyanates by phosgenation of these mixtures; (c) a process for the production of methylene-diphenylisocyanate (MDI) by phosgenation of MDA (obtained as above) at 50-150 degrees C and 0.5-10 bar, optionally in presence of inert solvent; (d) a process for the production of MDI comprising: (1) the semi-continuous process described above using a mol ratio of (A):(C) = (1:0.6)-(1:0.01) and a mol ratio of (A):(total F) = (1.7:1)-(7.2:1), in which the temperature of the circulating mixture is 20-75 degrees C and the mixture is heated for at least 0.2 hour at above 75 degrees C after adding at least 50% of the (F), (2) neutralization, (3) distillation of water and aniline, (4) phosgenation of the purified MDA as in (c) above, (5) removal of phosgene, hydrogen chloride and possibly solvent at below 150 degrees C under vacuum or inert gas, (6) removal of solvent at not above 1900 degrees C and (7) isolation of 2,2'-, 2,4'- and/or 4,4'-MDI and/or mixtures of at least two of these isomers by distillation at 2-50 mbar and 150-250 degrees C and/or by crystallization; and (e) polyisocyanates obtained by these processes.
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公开(公告)号:PT1053222E
公开(公告)日:2003-09-30
申请号:PT99906202
申请日:1999-01-26
Applicant: BASF AG
Inventor: STROFER ECKHARD , JACOBS JAN , SEYFERT WILFRIED , SCHWARZ HANS VOLKMAR , SCHWEERS OLAF , SCHARR VOLKER , PENZEL ULRICH
IPC: C07B61/00 , C07C209/78 , C07C211/45 , C07C211/50 , C07C263/10 , C07C265/14
Abstract: The production of methylene-di-phenylamine from aniline (A) and formaldehyde (F) with an acid catalyst (C) comprises placing (A) and possibly (C) in a reactor, feeding (F) and possibly (C) through a mixer into a circulation loop containing (A), possibly (C) and possibly (F), and heating to above 75 degrees C after adding at least 50% of the total (F). Independent claims are also included for: (a) mixtures containing methylene-di-phenylamine (MDA) obtained by this process; (b) a process for the production of polyisocyanates by phosgenation of these mixtures; (c) a process for the production of methylene-diphenylisocyanate (MDI) by phosgenation of MDA (obtained as above) at 50-150 degrees C and 0.5-10 bar, optionally in presence of inert solvent; (d) a process for the production of MDI comprising: (1) the semi-continuous process described above using a mol ratio of (A):(C) = (1:0.6)-(1:0.01) and a mol ratio of (A):(total F) = (1.7:1)-(7.2:1), in which the temperature of the circulating mixture is 20-75 degrees C and the mixture is heated for at least 0.2 hour at above 75 degrees C after adding at least 50% of the (F), (2) neutralization, (3) distillation of water and aniline, (4) phosgenation of the purified MDA as in (c) above, (5) removal of phosgene, hydrogen chloride and possibly solvent at below 150 degrees C under vacuum or inert gas, (6) removal of solvent at not above 1900 degrees C and (7) isolation of 2,2'-, 2,4'- and/or 4,4'-MDI and/or mixtures of at least two of these isomers by distillation at 2-50 mbar and 150-250 degrees C and/or by crystallization; and (e) polyisocyanates obtained by these processes.
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公开(公告)号:DE59905323D1
公开(公告)日:2003-06-05
申请号:DE59905323
申请日:1999-01-26
Applicant: BASF AG
Inventor: STROEFER ECKHARD , JACOBS JAN , SEYFERT WILFRIED , SCHWARZ VOLKMAR , SCHWEERS OLAF , SCHARR VOLKER , PENZEL ULRICH
IPC: C07B61/00 , C07C209/78 , C07C211/45 , C07C211/50 , C07C263/10 , C07C265/14
Abstract: The production of methylene-di-phenylamine from aniline (A) and formaldehyde (F) with an acid catalyst (C) comprises placing (A) and possibly (C) in a reactor, feeding (F) and possibly (C) through a mixer into a circulation loop containing (A), possibly (C) and possibly (F), and heating to above 75 degrees C after adding at least 50% of the total (F). Independent claims are also included for: (a) mixtures containing methylene-di-phenylamine (MDA) obtained by this process; (b) a process for the production of polyisocyanates by phosgenation of these mixtures; (c) a process for the production of methylene-diphenylisocyanate (MDI) by phosgenation of MDA (obtained as above) at 50-150 degrees C and 0.5-10 bar, optionally in presence of inert solvent; (d) a process for the production of MDI comprising: (1) the semi-continuous process described above using a mol ratio of (A):(C) = (1:0.6)-(1:0.01) and a mol ratio of (A):(total F) = (1.7:1)-(7.2:1), in which the temperature of the circulating mixture is 20-75 degrees C and the mixture is heated for at least 0.2 hour at above 75 degrees C after adding at least 50% of the (F), (2) neutralization, (3) distillation of water and aniline, (4) phosgenation of the purified MDA as in (c) above, (5) removal of phosgene, hydrogen chloride and possibly solvent at below 150 degrees C under vacuum or inert gas, (6) removal of solvent at not above 1900 degrees C and (7) isolation of 2,2'-, 2,4'- and/or 4,4'-MDI and/or mixtures of at least two of these isomers by distillation at 2-50 mbar and 150-250 degrees C and/or by crystallization; and (e) polyisocyanates obtained by these processes.
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公开(公告)号:AU2621799A
公开(公告)日:1999-08-23
申请号:AU2621799
申请日:1999-01-26
Applicant: BASF AG
Inventor: STROFER ECKHARD , JACOBS JAN , SEYFERT WILFRIED , SCHWARZ HANS VOLKMAR , SCHWEERS OLAF , SCHARR VOLKER , PENZEL ULRICH
IPC: C07B61/00 , C07C209/78 , C07C211/45 , C07C211/50 , C07C263/10 , C07C265/14
Abstract: The production of methylene-di-phenylamine from aniline (A) and formaldehyde (F) with an acid catalyst (C) comprises placing (A) and possibly (C) in a reactor, feeding (F) and possibly (C) through a mixer into a circulation loop containing (A), possibly (C) and possibly (F), and heating to above 75 degrees C after adding at least 50% of the total (F). Independent claims are also included for: (a) mixtures containing methylene-di-phenylamine (MDA) obtained by this process; (b) a process for the production of polyisocyanates by phosgenation of these mixtures; (c) a process for the production of methylene-diphenylisocyanate (MDI) by phosgenation of MDA (obtained as above) at 50-150 degrees C and 0.5-10 bar, optionally in presence of inert solvent; (d) a process for the production of MDI comprising: (1) the semi-continuous process described above using a mol ratio of (A):(C) = (1:0.6)-(1:0.01) and a mol ratio of (A):(total F) = (1.7:1)-(7.2:1), in which the temperature of the circulating mixture is 20-75 degrees C and the mixture is heated for at least 0.2 hour at above 75 degrees C after adding at least 50% of the (F), (2) neutralization, (3) distillation of water and aniline, (4) phosgenation of the purified MDA as in (c) above, (5) removal of phosgene, hydrogen chloride and possibly solvent at below 150 degrees C under vacuum or inert gas, (6) removal of solvent at not above 1900 degrees C and (7) isolation of 2,2'-, 2,4'- and/or 4,4'-MDI and/or mixtures of at least two of these isomers by distillation at 2-50 mbar and 150-250 degrees C and/or by crystallization; and (e) polyisocyanates obtained by these processes.
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公开(公告)号:AT280036T
公开(公告)日:2004-11-15
申请号:AT01996454
申请日:2001-11-16
Applicant: BASF AG
Inventor: FORSTER HEINZ , HEFNER MATTHIAS , REINERTH PETER , SANDBANK THOMAS , BERNARD GERHARD , DIERSSEN JENS , STADLER EDMUND , SCHWEERS OLAF , MERTES JUERGEN , KNOBLAUCH GEORG
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公开(公告)号:ES2198894T3
公开(公告)日:2004-02-01
申请号:ES99906202
申请日:1999-01-26
Applicant: BASF AG
Inventor: STROFER ECKHARD , JACOBS JAN , SEYFERT WILFRIED , SCHWARZ HANS VOLKMAR , SCHWEERS OLAF , SCHARR VOLKER
IPC: C07B61/00 , C07C209/78 , C07C211/45 , C07C211/50 , C07C263/10 , C07C265/14
Abstract: The production of methylene-di-phenylamine from aniline (A) and formaldehyde (F) with an acid catalyst (C) comprises placing (A) and possibly (C) in a reactor, feeding (F) and possibly (C) through a mixer into a circulation loop containing (A), possibly (C) and possibly (F), and heating to above 75 degrees C after adding at least 50% of the total (F). Independent claims are also included for: (a) mixtures containing methylene-di-phenylamine (MDA) obtained by this process; (b) a process for the production of polyisocyanates by phosgenation of these mixtures; (c) a process for the production of methylene-diphenylisocyanate (MDI) by phosgenation of MDA (obtained as above) at 50-150 degrees C and 0.5-10 bar, optionally in presence of inert solvent; (d) a process for the production of MDI comprising: (1) the semi-continuous process described above using a mol ratio of (A):(C) = (1:0.6)-(1:0.01) and a mol ratio of (A):(total F) = (1.7:1)-(7.2:1), in which the temperature of the circulating mixture is 20-75 degrees C and the mixture is heated for at least 0.2 hour at above 75 degrees C after adding at least 50% of the (F), (2) neutralization, (3) distillation of water and aniline, (4) phosgenation of the purified MDA as in (c) above, (5) removal of phosgene, hydrogen chloride and possibly solvent at below 150 degrees C under vacuum or inert gas, (6) removal of solvent at not above 1900 degrees C and (7) isolation of 2,2'-, 2,4'- and/or 4,4'-MDI and/or mixtures of at least two of these isomers by distillation at 2-50 mbar and 150-250 degrees C and/or by crystallization; and (e) polyisocyanates obtained by these processes.
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公开(公告)号:AU2185702A
公开(公告)日:2002-05-27
申请号:AU2185702
申请日:2001-11-16
Applicant: BASF AG
Inventor: FORSTER HEINZ , HEFNER MATTHIAS , REINERTH PETER , SANDBANK THOMAS , BERNARD GERHARD , DIERSSEN JENS , STADLER EDMUND , SCHWEERS OLAF , MERTES JURGEN , KNOBLAUCH GEORG
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公开(公告)号:DE50104247D1
公开(公告)日:2004-11-25
申请号:DE50104247
申请日:2001-11-16
Applicant: BASF AG
Inventor: FORSTER HEINZ , HEFNER MATTHIAS , REINERTH PETER , SANDBANK THOMAS , BERNARD GERHARD , DIERSSEN JENS , STADLER EDMUND , SCHWEERS OLAF , MERTES JUERGEN , KNOBLAUCH GEORG
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公开(公告)号:DE10194972D2
公开(公告)日:2003-08-21
申请号:DE10194972
申请日:2001-11-13
Applicant: BASF AG
Inventor: FORSTER HEINZ , HEFNER MATTHIAS , REINERTH PETER , BERNARD GERHARD , STADLER EDMUND , KNOBLAUCH GEORG , SCHWEERS OLAF
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公开(公告)号:AU2484202A
公开(公告)日:2002-05-27
申请号:AU2484202
申请日:2001-11-13
Applicant: BASF AG
Inventor: FORSTER HEINZ , HEFNER MATTHIAS , REINERTH PETER , BERNARD GERHARD , STADLER EDMUND , KNOBLAUCH GEORG , SCHWEERS OLAF
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