DK0524554T3 - Fremgangsmåde til termisk spaltning af carbamidsyreestere - Google Patents

Fremgangsmåde til termisk spaltning af carbamidsyreestere

Info

Publication number
DK0524554T3
DK0524554T3 DK92112212.3T DK92112212T DK0524554T3 DK 0524554 T3 DK0524554 T3 DK 0524554T3 DK 92112212 T DK92112212 T DK 92112212T DK 0524554 T3 DK0524554 T3 DK 0524554T3
Authority
DK
Denmark
Prior art keywords
acid esters
carbamic acid
thermal decomposition
reactor
cleavage
Prior art date
Application number
DK92112212.3T
Other languages
Danish (da)
English (en)
Inventor
Franz Dr Merger
Andreas Dr Otterbach
Wolfgang Dr Schwarz
Hans Volkmar Dr Schwarz
Otto Mattner
Eckhardt Dr Brandt
Peter Dr Magnussen
Roland Dr Minges
Original Assignee
Basf Ag
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 Basf Ag filed Critical Basf Ag
Application granted granted Critical
Publication of DK0524554T3 publication Critical patent/DK0524554T3/da

Links

Classifications

    • 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
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C263/00—Preparation of derivatives of isocyanic acid
    • C07C263/04—Preparation of derivatives of isocyanic acid from or via carbamates or carbamoyl halides

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
DK92112212.3T 1991-07-25 1992-07-17 Fremgangsmåde til termisk spaltning af carbamidsyreestere DK0524554T3 (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4124671A DE4124671A1 (de) 1991-07-25 1991-07-25 Reaktor und verfahren zur thermischen spaltung von carbamidsaeureestern

Publications (1)

Publication Number Publication Date
DK0524554T3 true DK0524554T3 (da) 1997-12-15

Family

ID=6436991

Family Applications (1)

Application Number Title Priority Date Filing Date
DK92112212.3T DK0524554T3 (da) 1991-07-25 1992-07-17 Fremgangsmåde til termisk spaltning af carbamidsyreestere

Country Status (8)

Country Link
US (1) US5616784A (ja)
EP (1) EP0524554B1 (ja)
JP (1) JP3238201B2 (ja)
KR (1) KR100218656B1 (ja)
AT (1) ATE159714T1 (ja)
DE (2) DE4124671A1 (ja)
DK (1) DK0524554T3 (ja)
ES (1) ES2109959T3 (ja)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2166922T3 (es) * 1996-03-15 2002-05-01 Bayer Ag Uso de disolventes o mezclas de disolventes de alto punto de ebullicion como medio intercambiador de calor para la disociacion termica de esteres de acidos carbamicos.
DE19813107A1 (de) 1998-03-25 1999-09-30 Basf Ag Verfahren zur Herstellung von Polyurethanschaumstoffen
DE10209095A1 (de) * 2002-03-01 2003-09-11 Basf Ag Verfahren zur Herstellung von Isocyanaten
DE10215778A1 (de) * 2002-04-10 2003-12-18 Basf Ag Reaktor zur thermischen Spaltung von mono- und polyfunktionellen Carbamidsäureestern
DE10338509A1 (de) * 2003-08-22 2005-03-17 Degussa Ag Mehrstufiges Verfahren zur kontinuierlichen Herstellung von cycloaliphatischen Diisocyanaten
DE10338508A1 (de) 2003-08-22 2005-03-17 Degussa Ag Mehrstufiges Verfahren zur kontinuierlichen Herstellung von cycloaliphatischen Diisocyanaten
DE10338511A1 (de) * 2003-08-22 2005-03-17 Degussa Ag Mehrstufiges Verfahren zur kontinuierlichen Herstellung von cycloaliphatischen Diisocyanaten
DE102004022626A1 (de) 2004-05-07 2005-12-15 Degussa Ag Mehrstufiges Verfahren zur kontinuierlichen Herstellung von cycloaliphatischen Diisocyanaten
DE102004026451A1 (de) * 2004-05-29 2005-12-15 Degussa Ag Mehrstufiges Verfahren zur kontinuierlichen Herstellung von cycloaliphatischen Diisocyanaten
DE102004036499A1 (de) * 2004-07-28 2006-03-23 Degussa Ag Mehrstufiges Verfahren zur kontinuierlichen Herstellung von cycloaliphatischen Diisocyanaten
WO2008059953A1 (fr) 2006-11-17 2008-05-22 Asahi Kasei Chemicals Corporation Procédé de production d'isocyanate
TW200844080A (en) 2007-01-11 2008-11-16 Asahi Kasei Chemicals Corp Process for producing isocyanate
JP5242678B2 (ja) 2008-05-15 2013-07-24 旭化成ケミカルズ株式会社 炭酸ジアリールを用いるイソシアネートの製造方法
BRPI0822694B1 (pt) 2008-05-15 2018-11-27 Asahi Kasei Chemicals Corp processo para produzir um isocianato
KR101348229B1 (ko) 2011-12-14 2014-01-08 경희대학교 산학협력단 지방족 디이소시아네이트의 제조방법
SG2013017017A (en) 2012-01-25 2014-09-26 Asahi Kasei Chemicals Corp A method of separation

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2822373A (en) * 1958-02-04 Amine
US2823221A (en) * 1952-11-11 1958-02-11 Bayer Ag Production of aromatic monoisocyanates in the gaseous phase
US3734941A (en) * 1968-09-06 1973-05-22 American Cyanamid Co Process for converting urethanes to isocyanates
US3896006A (en) * 1972-06-01 1975-07-22 Bp Chem Int Ltd Mesityl oxide removal from high-purity phenol
JPS5219624A (en) * 1975-08-07 1977-02-15 Mitsui Toatsu Chem Inc Process for preparation of isocyanates
DE2703281A1 (de) * 1977-01-27 1978-08-03 Basf Ag Verfahren zur herstellung von aliphatischen isocyanaten
US4289732A (en) * 1978-12-13 1981-09-15 The Upjohn Company Apparatus for intimately admixing two chemically reactive liquid components
US4294774A (en) * 1980-11-14 1981-10-13 The Dow Chemical Company Preparation of organic isocyanates
DE3047898A1 (de) * 1980-12-19 1982-07-15 Bayer Ag, 5090 Leverkusen Verfahren zur kontinuierlichen thermischen spaltung von carbamidsaeureestern und die verwendung von hierbei anfallenden isocyanate und carbamidsaeureester aufweisenden gemischen zur herstellung von isocyanaten
DE3215591A1 (de) * 1982-04-27 1983-10-27 Bayer Ag, 5090 Leverkusen Verfahren zur kontinuierlichen thermischen spaltung von carbamidsaeureestern
DE3314788A1 (de) * 1983-04-23 1984-10-25 Basf Ag, 6700 Ludwigshafen Mehrstufenverfahren zur herstellung von hexamethylendiisocyanat-1,6 und/oder isomeren aliphatischen diisocyanaten mit 6 kohlenstoffatomen im alkylenrest
DE3828033A1 (de) * 1988-08-18 1990-03-08 Huels Chemische Werke Ag Kreislaufverfahren zur herstellung von (cyclo)aliphatischen diisocyanaten

Also Published As

Publication number Publication date
KR930001972A (ko) 1993-02-22
ES2109959T3 (es) 1998-02-01
EP0524554A2 (de) 1993-01-27
EP0524554A3 (en) 1993-08-11
JP3238201B2 (ja) 2001-12-10
DE4124671A1 (de) 1993-01-28
EP0524554B1 (de) 1997-10-29
DE59208991D1 (de) 1997-12-04
KR100218656B1 (ko) 1999-09-01
JPH05194352A (ja) 1993-08-03
ATE159714T1 (de) 1997-11-15
US5616784A (en) 1997-04-01

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