NL7608745A - Werkwijze ter bereiding van aromatische isocyanaten. - Google Patents

Werkwijze ter bereiding van aromatische isocyanaten.

Info

Publication number
NL7608745A
NL7608745A NL7608745A NL7608745A NL7608745A NL 7608745 A NL7608745 A NL 7608745A NL 7608745 A NL7608745 A NL 7608745A NL 7608745 A NL7608745 A NL 7608745A NL 7608745 A NL7608745 A NL 7608745A
Authority
NL
Netherlands
Prior art keywords
aromatic
metal
formula
reduced pressure
under reduced
Prior art date
Application number
NL7608745A
Other languages
English (en)
Other versions
NL186572B (nl
NL186572C (nl
Original Assignee
Mitsui Toatsu Chemicals
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 Mitsui Toatsu Chemicals filed Critical Mitsui Toatsu Chemicals
Publication of NL7608745A publication Critical patent/NL7608745A/nl
Publication of NL186572B publication Critical patent/NL186572B/nl
Application granted granted Critical
Publication of NL186572C publication Critical patent/NL186572C/nl

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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
NLAANVRAGE7608745,A 1975-08-07 1976-08-06 Werkwijze ter bereiding van aromatische isocyanaten. NL186572C (nl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50096056A JPS5219624A (en) 1975-08-07 1975-08-07 Process for preparation of isocyanates

Publications (3)

Publication Number Publication Date
NL7608745A true NL7608745A (nl) 1977-02-09
NL186572B NL186572B (nl) 1990-08-01
NL186572C NL186572C (nl) 1991-01-02

Family

ID=14154777

Family Applications (1)

Application Number Title Priority Date Filing Date
NLAANVRAGE7608745,A NL186572C (nl) 1975-08-07 1976-08-06 Werkwijze ter bereiding van aromatische isocyanaten.

Country Status (9)

Country Link
US (1) US4081472A (nl)
JP (1) JPS5219624A (nl)
BE (1) BE844967A (nl)
CA (1) CA1082728A (nl)
DE (1) DE2635490C3 (nl)
FR (1) FR2320288A1 (nl)
GB (1) GB1513193A (nl)
IT (1) IT1065802B (nl)
NL (1) NL186572C (nl)

Families Citing this family (59)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5488222A (en) * 1977-12-20 1979-07-13 Mitsubishi Chem Ind Ltd Preparation of isocyanate from carbamate
DE2756928A1 (de) * 1977-12-21 1979-07-05 Bayer Ag Verfahren zur kontinuierlichen herstellung von monoisocyanaten
DE2904917A1 (de) * 1979-02-09 1980-08-21 Basf Ag Verfahren zur herstellung von methylenbis-(4-phenylcarbaminsaeureester)
US4851565A (en) * 1979-04-30 1989-07-25 Basf Aktiengesellschaft Catalyzed process for the preparation of an aliphatic, cycloaliphatic, arylaliphatic or aliphatic-cycloaliphatic di- or polyurethane
DE2917569A1 (de) * 1979-04-30 1980-11-13 Basf Ag Verfahren zur herstellung von aromatischen di- und polyurethanen
DE2917493A1 (de) * 1979-04-30 1980-11-13 Basf Ag Verfahren zur herstellung von aliphatischen und cycloaliphatischen di- und polyurethanen
DE2942503A1 (de) * 1979-10-20 1981-05-07 Basf Ag, 6700 Ludwigshafen Verfahren zur herstellung von aromatischen di- und/oder polyisocyanaten
DE2942543A1 (de) * 1979-10-20 1981-05-07 Basf Ag, 6700 Ludwigshafen Verfahren zur herstellung von arylisocyanaten durch thermische spaltung von arylurethanen
JPS5679657A (en) * 1979-12-04 1981-06-30 Mitsui Toatsu Chem Inc Novel preparation of polyisocyanate
US4321402A (en) * 1980-08-18 1982-03-23 Exxon Research & Engineering Co. Carbamate process
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
JPS57158746A (en) * 1981-03-25 1982-09-30 Asahi Chem Ind Co Ltd Preparation of isocyanate
JPS57158748A (en) * 1981-03-26 1982-09-30 Asahi Chem Ind Co Ltd Preparation of isocyanate
JPS57158747A (en) * 1981-03-26 1982-09-30 Asahi Chem Ind Co Ltd Preparation of isocyanate
US4487713A (en) * 1981-06-26 1984-12-11 Exxon Research & Engineering Co. Production of isocyanates from esters of aromatic carbamic acids (urethanes)
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
DE3339300A1 (de) * 1983-10-29 1985-05-09 Basf Ag, 6700 Ludwigshafen Verfahren zur herstellung von isocyanaten durch thermische spaltung von urethanen
US5914428A (en) * 1987-01-13 1999-06-22 Daicel Chemical Industries, Ltd. Process for preparation of isocyanate compounds
US5773643A (en) * 1987-01-13 1998-06-30 Daicel Chemical Industries, Ltd. Process for preparation of isocyanate compounds
JPS63211256A (ja) * 1988-02-12 1988-09-02 Asahi Chem Ind Co Ltd イソシアナート類の製造方法
DE3915181A1 (de) * 1989-05-10 1990-11-15 Bayer Ag Verfahren zur herstellung von polyisocyanaten
US5220069A (en) * 1990-09-20 1993-06-15 Union Carbide Chemicals & Plastics Technology Corporation Processes for the preparation of carbamates
JPH04221356A (ja) * 1990-12-20 1992-08-11 Mitsubishi Gas Chem Co Inc キシリレンジイソシアネートの製造方法
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
DE4141402A1 (de) * 1991-12-16 1993-06-17 Bayer Ag Verfahren zur herstellung von hochreinen aromatischen di- und/oder polyurethanen
US5233010A (en) * 1992-10-15 1993-08-03 Monsanto Company Process for preparing isocyanate and carbamate ester products
JP3083039B2 (ja) * 1994-03-18 2000-09-04 三菱瓦斯化学株式会社 イソシアネート類の製造方法
EP0680994A1 (en) * 1994-05-02 1995-11-08 Nippon Paint Co., Ltd. Re-Crosslinkable composition and method for recycling using the same
GB0017968D0 (en) * 2000-07-22 2000-09-13 Epichem Ltd An improved process and apparatus for the isolation of pure,or substantially pure,organometallic compounds
DE10215778A1 (de) 2002-04-10 2003-12-18 Basf Ag Reaktor zur thermischen Spaltung von mono- und polyfunktionellen Carbamidsäureestern
DE10338508A1 (de) * 2003-08-22 2005-03-17 Degussa Ag Mehrstufiges Verfahren zur kontinuierlichen Herstellung von cycloaliphatischen Diisocyanaten
DE10338509A1 (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
US7700250B2 (en) * 2006-08-30 2010-04-20 Xerox Corporation Titanyl phthalocyanine photoconductors
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
ES2619508T3 (es) 2007-03-30 2017-06-26 Asahi Kasei Kabushiki Kaisha Procedimiento para producir un isocianato utilizando una composición que comprende un éster de ácido carbámico y un compuesto hidroxiaromático, y composición para el transporte o el almacenamiento de ésteres de ácido carbámico
JP5313164B2 (ja) * 2007-11-19 2013-10-09 旭化成ケミカルズ株式会社 イソシアネートおよび芳香族ヒドロキシ化合物の製造方法
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
DE102008002002A1 (de) 2008-05-27 2009-12-03 Evonik Degussa Gmbh Chlor armes mehrstufiges Verfahren zur Herstellung von cycloaliphatischen Diisocyanaten
CN102348679B (zh) 2009-03-26 2014-09-10 三井化学株式会社 氨基甲酸酯化合物及其制造方法、及异氰酸酯及其制造方法
EA030865B1 (ru) * 2009-08-21 2018-10-31 Асахи Касеи Кемикалз Корпорейшн Способ получения сложного эфира n-замещенной карбаминовой кислоты, способ получения изоцианата с применением такого сложного эфира n-замещенной карбаминовой кислоты и композиция для транспортировки и хранения сложного эфира n-замещенной карбаминовой кислоты, содержащая сложный эфир n-замещенной карбаминовой кислоты и ароматическое гидроксисоединение
JP5643517B2 (ja) * 2010-02-04 2014-12-17 三井化学株式会社 触媒処理方法
CN101792403B (zh) * 2010-03-22 2013-02-13 哈尔滨理工大学 微波辅助合成4，4’-二苯甲烷二异氰酸酯的方法
JP2013540101A (ja) * 2010-06-22 2013-10-31 ビーエーエスエフ ソシエタス・ヨーロピア イソシアネートの合成のための固体ルイス酸上での不均一系触媒によるカルバメートの解離
EP2679575B1 (en) 2011-02-21 2019-04-10 Asahi Kasei Kabushiki Kaisha Process for producing carbonyl compounds
CN102896103B (zh) * 2011-07-25 2014-12-03 中国石油天然气股份有限公司 一种清洗氨基甲酸酯热分解反应器结焦的方法
KR101348229B1 (ko) 2011-12-14 2014-01-08 경희대학교 산학협력단 지방족 디이소시아네이트의 제조방법
US11306055B2 (en) 2017-05-15 2022-04-19 Asahi Kasei Kabushiki Kaisha Isocyanate production method
EP3450424A1 (de) * 2017-09-04 2019-03-06 Covestro Deutschland AG Verfahren zur herstellung von isocyanaten
CN110467546B (zh) * 2018-05-10 2021-03-19 中国科学院过程工程研究所 一种制备间苯二亚甲基二异氰酸酯的方法
CN110423208A (zh) * 2019-08-15 2019-11-08 中国科学院过程工程研究所 一种二苯甲烷二异氰酸酯的制备方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2409712A (en) * 1944-02-03 1946-10-22 Du Pont Chemical process and products
DE1022222B (de) * 1953-01-23 1958-01-09 Rohm & Haas Verfahren zur Herstellung von 1,8-Diisocyan-p-menthan
US3477933A (en) * 1966-06-06 1969-11-11 Stauffer Chemical Co Process for preparing n-monosubstituted carbamic acid esters
US3734941A (en) * 1968-09-06 1973-05-22 American Cyanamid Co Process for converting urethanes to isocyanates
CA1023379A (en) * 1973-05-04 1977-12-27 Atlantic Richfield Company Production of isocyanates from esters of carbamic acids (urethanes)
US3962302A (en) * 1974-03-08 1976-06-08 Atlantic Richfield Company Production of isocyanates from esters of carbamic acids (urethanes)
US3919279A (en) * 1974-06-26 1975-11-11 Atlantic Richfield Co Catalytic production of isocyanates from esters of carbamic acids

Also Published As

Publication number Publication date
FR2320288B1 (nl) 1982-07-16
CA1082728A (en) 1980-07-29
BE844967A (fr) 1977-02-07
DE2635490A1 (de) 1977-02-24
US4081472A (en) 1978-03-28
GB1513193A (en) 1978-06-07
DE2635490C3 (de) 1981-09-17
JPS5745736B2 (nl) 1982-09-29
DE2635490B2 (de) 1980-10-16
FR2320288A1 (fr) 1977-03-04
NL186572B (nl) 1990-08-01
NL186572C (nl) 1991-01-02
IT1065802B (it) 1985-03-04
JPS5219624A (en) 1977-02-15

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Legal Events

Date Code Title Description
BA A request for search or an international-type search has been filed
BB A search report has been drawn up
BC A request for examination has been filed
A85 Still pending on 85-01-01
V1 Lapsed because of non-payment of the annual fee

Effective date: 19960301