FR2320288B1 - - Google Patents

Info

Publication number
FR2320288B1
FR2320288B1 FR7624337A FR7624337A FR2320288B1 FR 2320288 B1 FR2320288 B1 FR 2320288B1 FR 7624337 A FR7624337 A FR 7624337A FR 7624337 A FR7624337 A FR 7624337A FR 2320288 B1 FR2320288 B1 FR 2320288B1
Authority
FR
France
Prior art keywords
aromatic
metal
formula
reduced pressure
under reduced
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
Application number
FR7624337A
Other languages
English (en)
Other versions
FR2320288A1 (fr
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.)
Mitsui Toatsu Chemicals Inc
Original Assignee
Mitsui Toatsu Chemicals Inc
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 Inc filed Critical Mitsui Toatsu Chemicals Inc
Publication of FR2320288A1 publication Critical patent/FR2320288A1/fr
Application granted granted Critical
Publication of FR2320288B1 publication Critical patent/FR2320288B1/fr
Granted 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

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)
FR7624337A 1975-08-07 1976-08-09 Procede pour la preparation d'isocyanates aromatiques Granted FR2320288A1 (fr)

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 (2)

Publication Number Publication Date
FR2320288A1 FR2320288A1 (fr) 1977-03-04
FR2320288B1 true FR2320288B1 (fr) 1982-07-16

Family

ID=14154777

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7624337A Granted FR2320288A1 (fr) 1975-08-07 1976-08-09 Procede pour la preparation d'isocyanates aromatiques

Country Status (9)

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

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 (fr) * 1994-05-02 1995-11-08 Nippon Paint Co., Ltd. Composition à nouveau réticulable et procédé pour le recyclage utilisant celle-ci
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 (fr) 2011-02-21 2019-04-10 Asahi Kasei Kabushiki Kaisha Procédé de production de composés carbonylés
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 (fr) * 2017-09-04 2019-03-06 Covestro Deutschland AG Procédé de fabrication d'isocyanates
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 (fr) * 1973-05-04 1977-12-27 Atlantic Richfield Company Fabrication des isocyanates a partir d'esters d'acides carbamiques (urethannes)
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
CA1082728A (fr) 1980-07-29
BE844967A (fr) 1977-02-07
DE2635490A1 (de) 1977-02-24
US4081472A (en) 1978-03-28
NL7608745A (nl) 1977-02-09
GB1513193A (en) 1978-06-07
DE2635490C3 (de) 1981-09-17
JPS5745736B2 (fr) 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

Similar Documents

Publication Publication Date Title
FR2320288B1 (fr)
ES453393A1 (es) Procedimiento para la preparacion de poliisocianatos con grupos isocianurato.
ES444565A1 (es) Procedimiento para la obtencion de poliisocianatos con gru- pos isocianato bloqueados conteniendo grupos uretdiona.
ES8301900A1 (es) Procedimiento para la obtencion de poliisocianatos.
FR2362171A1 (fr) Procede de preparation de polyurethanne-urees
ES482987A1 (es) Un procedimiento para la preparacion de dicarbamatos de di- fenilmetano y carbamatos de polimetilenpolifenilo
FR2359189A1 (fr) Procede de fabrication de liants pour vernissage par electrophorese
Sasaki et al. A novel catlytic synthesis of vinyl carboamtes from carbon dioxide, diethylamine, and alkynes in the presence of Ru 3 (CO) 12
GB1458323A (en) Process for the purification of pdyisocyanates
AU2749488A (en) Urethanes made from aliphatic fluorinated alcohols, isocyanates and substituted aromatic compounds, a process for their preparation, and their use
ES476180A1 (es) Procedimiento para la obtencion continua de monoisocianatos.
ES2066065T3 (es) Procedimiento para la obtencion de poliisocianatos que muestran grupos uretdion.
GB1359032A (en) Process for preparing organic mono-and polyisocyanates
CA1192570A (fr) Methode de preparation d'urethanes
FR2408590A1 (fr) Procede de preparation de peroxydes
KR830010059A (ko) 방향족 아미노설폰산의 제조방법
ES483249A1 (es) Procedimiento para la obtencion de diciclopentilen(2,2'-bis (4-alquil-6-t-butilfenoles).
SE7904802L (sv) Forfarande for framstellning av isocyanat
EP0200506A3 (en) Process for the preparation of methyl carbamates
JPS5446768A (en) Preparation of 25-fluoro cholesterol or its derivativ
FR2360564A1 (fr) Procede de preparation de mono-isocyanates aliphatiques a partir des chlorures d'acides carbamiques correspondants
US3726911A (en) N-substituted (5,8-dimethyl-5,6,7,8-tetrahydro-1-naphthyl) carbamates
DE3061163D1 (en) Process for preparing urethanes and their use in the preparation of isocyanates
EP0373619A3 (fr) Procédé de préparation de l'acide p-hydroxybenzoique
UST994004I4 (en) Process for the preparation of diphenylmethane dicarbamates and polymethylene polyphenyl carbamates using solid acid catalysts

Legal Events

Date Code Title Description
ST Notification of lapse