ES2166923T3 - Procedimiento para la disociacion termica de esteres de acidos carbamicos. - Google Patents

Procedimiento para la disociacion termica de esteres de acidos carbamicos.

Info

Publication number
ES2166923T3
ES2166923T3 ES97103445T ES97103445T ES2166923T3 ES 2166923 T3 ES2166923 T3 ES 2166923T3 ES 97103445 T ES97103445 T ES 97103445T ES 97103445 T ES97103445 T ES 97103445T ES 2166923 T3 ES2166923 T3 ES 2166923T3
Authority
ES
Spain
Prior art keywords
carbamic acid
procedure
acid esters
thermal dissociation
reaction
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 - Lifetime
Application number
ES97103445T
Other languages
English (en)
Spanish (es)
Inventor
Jurgen Dr Dahmer
Dieter Dr Schleenstein
Heinrich Steude
Oswald Dr Wilmes
Christian Dr Rasp
Georg Dr Ronge
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.)
Bayer AG
Original Assignee
Bayer 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
Priority claimed from DE19618828A external-priority patent/DE19618828A1/de
Application filed by Bayer AG filed Critical Bayer AG
Application granted granted Critical
Publication of ES2166923T3 publication Critical patent/ES2166923T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • Y02P20/10—Process efficiency
    • 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
    • Y02P20/582—Recycling of unreacted starting or intermediate materials

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
ES97103445T 1996-03-15 1997-03-03 Procedimiento para la disociacion termica de esteres de acidos carbamicos. Expired - Lifetime ES2166923T3 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19610261 1996-03-15
DE19618828A DE19618828A1 (de) 1996-05-10 1996-05-10 Verwendung von hochsiedenden Lösemitteln bzw. -gemischen als Wärmetauschmedium für die thermische Spaltung von Carbamidsäureestern

Publications (1)

Publication Number Publication Date
ES2166923T3 true ES2166923T3 (es) 2002-05-01

Family

ID=26023837

Family Applications (2)

Application Number Title Priority Date Filing Date
ES97103445T Expired - Lifetime ES2166923T3 (es) 1996-03-15 1997-03-03 Procedimiento para la disociacion termica de esteres de acidos carbamicos.
ES97103444T Expired - Lifetime ES2166922T3 (es) 1996-03-15 1997-03-03 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.

Family Applications After (1)

Application Number Title Priority Date Filing Date
ES97103444T Expired - Lifetime ES2166922T3 (es) 1996-03-15 1997-03-03 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.

Country Status (6)

Country Link
US (2) US5883291A (https=)
EP (2) EP0795544B1 (https=)
JP (2) JP4031551B2 (https=)
CA (2) CA2199919A1 (https=)
DE (2) DE59705128D1 (https=)
ES (2) ES2166923T3 (https=)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6008396A (en) * 1997-04-11 1999-12-28 Osi Specialties, Inc. Hot oil process for producing isocyanato organosilanes
US6350927B2 (en) 1997-05-09 2002-02-26 The Dow Chemical Company Thermal fluid blends containing 1,2,3,4-tetrahydro (1-phenylethyl)naphthalene
AU7469598A (en) * 1997-05-09 1998-11-27 Dow Chemical Company, The Thermal fluid blends containing 1,2,3,4-tetrahydro(1-phenylethyl)naphthalene
DE19813107A1 (de) 1998-03-25 1999-09-30 Basf Ag Verfahren zur Herstellung von Polyurethanschaumstoffen
DE60113814T2 (de) 2000-02-29 2006-06-29 Huntsman International Llc, Salt Lake City Verfahren zur herstellung organischer polyisocyanate
SG115512A1 (en) 2001-12-28 2005-10-28 Mitsui Takeda Chemicals Inc Method for producing carbamates and method for producing isocyanates
TWI361179B (en) * 2006-11-17 2012-04-01 Asahi Kasei Chemicals Corp A process for producing isocyanates
TW200844080A (en) * 2007-01-11 2008-11-16 Asahi Kasei Chemicals Corp Process for producing isocyanate
CN101652344B (zh) 2007-03-30 2014-06-04 旭化成化学株式会社 使用含有氨基甲酸酯和芳香族羟基化合物的组合物制造异氰酸酯的方法、以及氨基甲酸酯输送用和储藏用组合物
CA2721357C (en) * 2008-05-15 2014-01-07 Asahi Kasei Chemicals Corporation Process for producing isocyanates using diaryl carbonate
WO2009139062A1 (ja) * 2008-05-15 2009-11-19 旭化成ケミカルズ株式会社 イソシアネートの製造方法
US8822718B2 (en) 2009-12-01 2014-09-02 Basf Se Process for preparing isocyanates by thermally cleaving carbamates
EP2507206B1 (de) 2009-12-04 2014-12-03 Basf Se Verfahren zur herstellung von isocyanaten
HUE028076T2 (en) * 2010-01-19 2016-11-28 Basf Se Process for the preparation of isocyanates by thermal cleavage of carbamates
US8680323B2 (en) 2010-01-19 2014-03-25 Basf Se Process for preparing isocyanates by thermal dissociation of carbamates
KR20130089233A (ko) 2010-06-22 2013-08-09 바스프 에스이 고체 루이스 산 위의 이소시아네이트의 합성을 위한 불균일하게 촉매화된 카바메이트 해리
ES2714602T3 (es) 2010-10-04 2019-05-29 Asahi Chemical Ind Método de separación y método para producir isocianato
CN102653517A (zh) * 2011-03-02 2012-09-05 中国科学院过程工程研究所 一种由氨基甲酸酯制备异氰酸酯的方法
KR101489098B1 (ko) 2012-01-25 2015-02-02 아사히 가세이 케미칼즈 가부시키가이샤 분리 방법
JP5650777B2 (ja) * 2013-03-11 2015-01-07 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
WO2016010900A1 (en) 2014-07-14 2016-01-21 Momentive Performance Materials Inc. Process for producing low-color and color-stable isocyanatoorganosilanes and products derived therefrom
WO2016156188A1 (de) 2015-03-31 2016-10-06 Basf Se Verfahren zur herstellung von isocyanaten durch carbamatspaltung
US10968168B2 (en) 2017-05-15 2021-04-06 Asahi Kasei Kabushiki Kaisha Isocyanate production method
WO2020014040A1 (en) * 2018-07-13 2020-01-16 Momentive Performance Materials Inc. Preparation of isocyanatosilanes
CN111303373B (zh) * 2020-02-25 2022-07-12 万华化学集团股份有限公司 一种低色度脲基甲酸酯组合物及其制备方法和应用
CN116177484A (zh) * 2023-03-04 2023-05-30 福州大学 一种液体有机氢载体全氢苄基甲苯的反应精馏脱氢工艺

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3734941A (en) * 1968-09-06 1973-05-22 American Cyanamid Co Process for converting urethanes to isocyanates
US3870739A (en) * 1973-03-05 1975-03-11 Air Prod & Chem Isocyanates from urethanes
US3919278A (en) * 1974-06-13 1975-11-11 Atlantic Richfield Co Production of isocyanates from lower alkyl esters of mononuclear aromatic carbamic acids
DE2942543A1 (de) * 1979-10-20 1981-05-07 Basf Ag, 6700 Ludwigshafen Verfahren zur herstellung von arylisocyanaten durch thermische spaltung von arylurethanen
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
DE3108990A1 (de) * 1981-03-10 1982-09-23 Bayer Ag, 5090 Leverkusen Verfahren zur herstellung von polyisocyanaten
DE3142627A1 (de) * 1981-10-28 1983-05-05 Basf Ag, 6700 Ludwigshafen Verfahren zur herstellung von isocyanaten durch thermische spaltung von urethanen
DE3215591A1 (de) * 1982-04-27 1983-10-27 Bayer Ag, 5090 Leverkusen Verfahren zur kontinuierlichen thermischen spaltung von carbamidsaeureestern
DE3362121D1 (en) * 1982-07-24 1986-03-27 Basf Ag Process for the preparation of hexamethylene diisocyanate-1,6 and/or of the isomeric diisocyanates with 6 carbon atoms in the alkyl group
DE3314790A1 (de) * 1983-04-23 1984-10-25 Basf Ag, 6700 Ludwigshafen Mehrstufenverfahren zur herstellung von 3-isocyanatomethyl-3,5,5-trimethyl-cyclohexylisocyanat
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
US4599401A (en) * 1983-10-27 1986-07-08 Union Carbide Corporation Low viscosity adducts of poly(active hydrogen) organic compounds and a polyepoxide
DE3339300A1 (de) * 1983-10-29 1985-05-09 Basf Ag, 6700 Ludwigshafen Verfahren zur herstellung von isocyanaten durch thermische spaltung von urethanen
DE3632010A1 (de) * 1986-09-20 1988-04-07 Basf Ag Neue 2-(alkoxymethyl)-pentan-1,5-diisocyanate, -diurethane und -dicarbamidsaeurechloride, verfahren zu ihrer herstellung und deren verwendung
WO1988005430A1 (fr) * 1987-01-13 1988-07-28 Daicel Chemical Industries, Ltd. Procede de preparation de composes d'isocyanate
DE3828033A1 (de) * 1988-08-18 1990-03-08 Huels Chemische Werke Ag Kreislaufverfahren zur herstellung von (cyclo)aliphatischen diisocyanaten
DE3915181A1 (de) * 1989-05-10 1990-11-15 Bayer Ag Verfahren zur herstellung von polyisocyanaten
DE4010226A1 (de) * 1990-03-30 1991-10-02 Basf Ag Neue 2,2-dialkylpentan-1,5-diisocyanate, -diurethane und -dicarbamidsaeurechloride, verfahren zu ihrer herstellung und ihre verwendung
DE4124671A1 (de) * 1991-07-25 1993-01-28 Basf Ag Reaktor und verfahren zur thermischen spaltung von carbamidsaeureestern
DE4137428A1 (de) * 1991-11-14 1993-05-19 Bayer Ag Verfahren zur herstellung von polyisocyanaten
DE4213099A1 (de) * 1992-04-21 1993-10-28 Basf Ag Mehrstufiges Verfahren zur kontinuierlichen Herstellung von organischen Polyisocyanaten
DE4231417A1 (de) * 1992-05-05 1993-11-11 Huels Chemische Werke Ag Kontinuierliches mehrstufiges Verfahren zur Herstellung von (cyclo)aliphatischen Diisocyanaten
DE4413580A1 (de) * 1994-04-19 1995-10-26 Bayer Ag Verfahren zur Herstellung von 1,4-Diisocyanatobutan (BDI)

Also Published As

Publication number Publication date
ES2166922T3 (es) 2002-05-01
CA2199919A1 (en) 1997-09-15
EP0795544B1 (de) 2001-10-31
DE59705128D1 (de) 2001-12-06
US5883291A (en) 1999-03-16
EP0795544A1 (de) 1997-09-17
DE59705127D1 (de) 2001-12-06
EP0795543A1 (de) 1997-09-17
JP4031551B2 (ja) 2008-01-09
US5731458A (en) 1998-03-24
JP4031550B2 (ja) 2008-01-09
EP0795543B1 (de) 2001-10-31
JPH09249632A (ja) 1997-09-22
JPH09249633A (ja) 1997-09-22
CA2199913A1 (en) 1997-09-15
CA2199913C (en) 2006-05-16

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