ES2166922T3 - 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. - Google Patents

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.

Info

Publication number
ES2166922T3
ES2166922T3 ES97103444T ES97103444T ES2166922T3 ES 2166922 T3 ES2166922 T3 ES 2166922T3 ES 97103444 T ES97103444 T ES 97103444T ES 97103444 T ES97103444 T ES 97103444T ES 2166922 T3 ES2166922 T3 ES 2166922T3
Authority
ES
Spain
Prior art keywords
mixtures
solvents
measurement
acid esters
carbamic acid
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
ES97103444T
Other languages
English (en)
Inventor
Dieter Schleenstein
Christian Dr Rasp
Georg Dr Ronge
Oswald Dr Wilmes
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 ES2166922T3 publication Critical patent/ES2166922T3/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)

Abstract

EL INVENTO SE REFIERE A LA UTILIZACION DE DISOLVENTES O MEZCLAS DE DISOLVENTES INERTES TERMOESTABLES, CON UN PUNTO DE EBULLICION DEFINIDO O UN INTERVALO ESTRECHO DE EBULLICION, COMO MEDIO DE INTERCAMBIO DE CALOR PARA LA DISGREGACION TERMICA DE ESTERES DEL ACIDO CARBAMICO (DISOCIACION DE URETANO).
ES97103444T 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. Expired - Lifetime ES2166922T3 (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
ES2166922T3 true ES2166922T3 (es) 2002-05-01

Family

ID=26023837

Family Applications (2)

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.
ES97103445T Expired - Lifetime ES2166923T3 (es) 1996-03-15 1997-03-03 Procedimiento para la disociacion termica de esteres de acidos carbamicos.

Family Applications After (1)

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.

Country Status (6)

Country Link
US (2) US5731458A (es)
EP (2) EP0795544B1 (es)
JP (2) JP4031550B2 (es)
CA (2) CA2199919A1 (es)
DE (2) DE59705128D1 (es)
ES (2) ES2166922T3 (es)

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
EP0980410B1 (en) * 1997-05-09 2002-03-27 The Dow Chemical Company 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
KR100670885B1 (ko) 2000-02-29 2007-01-18 헌트스만 인터내셔날, 엘엘씨 유기 폴리이소시아네이트의 제조 방법
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
US9056819B2 (en) * 2007-03-30 2015-06-16 Asahi Kasei Chemicals Corporation Isocyanate production process using composition containing carbamic acid ester and aromatic hydroxy compound, and composition for transfer and storage of carbamic acid ester
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
CN102712579B (zh) 2009-12-01 2014-07-09 巴斯夫欧洲公司 通过热裂解氨基甲酸酯制备异氰酸酯的方法
PL2507206T3 (pl) 2009-12-04 2015-05-29 Basf Se Sposób wytwarzania izocyjanianów
WO2011089098A1 (de) 2010-01-19 2011-07-28 Basf Se Verfahren zur herstellung von isocyanaten durch thermische spaltung von carbamaten
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
SG188183A1 (en) * 2010-10-04 2013-04-30 Asahi Kasei Chemicals Corp Separation method and method for producing isocyanate
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
JP5700595B2 (ja) 2012-01-25 2015-04-15 旭化成ケミカルズ株式会社 分離方法
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
JP6878267B2 (ja) 2014-07-14 2021-05-26 モメンティブ パフォーマンス マテリアルズ インコーポレイテッドＭｏｍｅｎｔｉｖｅ Ｐｅｒｆｏｒｍａｎｃｅ Ｍａｔｅｒｉａｌｓ Ｉｎｃ． 低着色および色安定なイソシアネートオルガノシランの製造プロセスおよびそれにより得られる生成物
WO2016156188A1 (de) 2015-03-31 2016-10-06 Basf Se Verfahren zur herstellung von isocyanaten durch carbamatspaltung
JP6757468B2 (ja) 2017-05-15 2020-09-16 旭化成株式会社 イソシアネートの製造方法
JP2021531267A (ja) * 2018-07-13 2021-11-18 モメンティブ パフォーマンス マテリアルズ インコーポレイテッドMomentive Performance Materials Inc. イソシアナトシランの調製
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
EP0100047B1 (de) * 1982-07-24 1986-02-12 BASF Aktiengesellschaft Verfahren zur Herstellung von Hexamethylen-diisocyanat-1,6 und/oder isomeren Diisocyanaten mit 6 Kohlenstoffatomen im Alkylenrest
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
DE3314790A1 (de) * 1983-04-23 1984-10-25 Basf Ag, 6700 Ludwigshafen Mehrstufenverfahren zur herstellung von 3-isocyanatomethyl-3,5,5-trimethyl-cyclohexylisocyanat
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
EP0323514B1 (en) * 1987-01-13 1994-07-13 Daicel Chemical Industries, Ltd. Process for preparing isocyanate compounds
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
EP0795544B1 (de) 2001-10-31
JPH09249633A (ja) 1997-09-22
US5731458A (en) 1998-03-24
DE59705127D1 (de) 2001-12-06
JPH09249632A (ja) 1997-09-22
EP0795544A1 (de) 1997-09-17
JP4031550B2 (ja) 2008-01-09
CA2199913C (en) 2006-05-16
EP0795543A1 (de) 1997-09-17
JP4031551B2 (ja) 2008-01-09
EP0795543B1 (de) 2001-10-31
ES2166923T3 (es) 2002-05-01
US5883291A (en) 1999-03-16
DE59705128D1 (de) 2001-12-06
CA2199919A1 (en) 1997-09-15
CA2199913A1 (en) 1997-09-15

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