ES8402260A1 - Procedimiento continuo para la disociacion de esteres de acido carbamico. - Google Patents
Procedimiento continuo para la disociacion de esteres de acido carbamico.Info
- Publication number
- ES8402260A1 ES8402260A1 ES521887A ES521887A ES8402260A1 ES 8402260 A1 ES8402260 A1 ES 8402260A1 ES 521887 A ES521887 A ES 521887A ES 521887 A ES521887 A ES 521887A ES 8402260 A1 ES8402260 A1 ES 8402260A1
- Authority
- ES
- Spain
- Prior art keywords
- reactor
- fractions
- fraction
- acid esters
- carbamic
- 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
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)
Abstract
PROCEDIMIENTO CONTINUO PARA LA DISOCIACION TERMICA DE ESTERES DE ACIDO CARBAMICO N-MONOSUSTITUIDOS, BAJO UNA PRESION DE 0,001 HASTA 20 BAR Y UNA TEMPERATURA DE 150 HASTA 450 GRADOS. COMPRENDE LAS SIGUIENTES OPERACIONES: PRIMERA, LA DISOCIACION TERMICA SE REALIZA EN UN REACTOR TUBULAR DEJANDOSE FLUIR HACIA ABAJO EL ESTER DEL ACIDO CARBAMICO A DISOCIAR EN FORMA LIQUIDA POR LA PARED INTERIOR DEL REACTOR BUTULAR O CONDUCIENDOLE ALO LARGO DE ESTA: SEGUNDA, LOSPRODUCTOS DE DISOCIACION QUE BAJO CONDICIONES DE REACCION SE OBTIENEN EN FORMA DE GAS SE RETIRAN POR LA CABEZA DEL REACTOR TUBULAR; Y POR ULTIMO, LOS PRODUCTOS DE DISOCIACION QUE BAJO LAS CONDICIONES DE REACCICON SE OBTIENEN, EN CADA DADO, COMO LIQUIDO SE RETIRAN POR EL PIE DEL REACTOR TUBULAR.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19823215591 DE3215591A1 (de) | 1982-04-27 | 1982-04-27 | Verfahren zur kontinuierlichen thermischen spaltung von carbamidsaeureestern |
Publications (2)
Publication Number | Publication Date |
---|---|
ES521887A0 ES521887A0 (es) | 1984-01-16 |
ES8402260A1 true ES8402260A1 (es) | 1984-01-16 |
Family
ID=6162030
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES521887A Expired ES8402260A1 (es) | 1982-04-27 | 1983-04-27 | Procedimiento continuo para la disociacion de esteres de acido carbamico. |
Country Status (7)
Country | Link |
---|---|
US (1) | US4692550A (es) |
EP (1) | EP0092738B1 (es) |
JP (1) | JPS58194849A (es) |
BR (1) | BR8302136A (es) |
CA (1) | CA1216588A (es) |
DE (2) | DE3215591A1 (es) |
ES (1) | ES8402260A1 (es) |
Families Citing this family (46)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1183332B (it) * | 1985-02-08 | 1987-10-22 | Enichem Sintesi | Procedimento per la produzione di n-metilcarbammati |
US4873365A (en) * | 1986-04-04 | 1989-10-10 | American Cyanamid Company | Process for the preparation of isophorone diisocyanate from isophorone dicarbamyl esters using highly selective SnO2 or CuO catalysts |
EP0271679A3 (en) * | 1986-11-03 | 1988-11-23 | American Cyanamid Company | Isocyanates derived from dienes and process and their preparation |
JP2538222B2 (ja) * | 1986-12-26 | 1996-09-25 | ダイセル化学工業株式会社 | イソホロンジイソシアネ−トの製造方法 |
DE3915181A1 (de) * | 1989-05-10 | 1990-11-15 | Bayer Ag | Verfahren zur herstellung von polyisocyanaten |
IT1244476B (it) * | 1990-12-21 | 1994-07-15 | Enichem Sintesi | Procedimento continuo per la preparazione di isociamati |
DE4124671A1 (de) * | 1991-07-25 | 1993-01-28 | Basf Ag | Reaktor und verfahren zur thermischen spaltung von carbamidsaeureestern |
DE4141402A1 (de) * | 1991-12-16 | 1993-06-17 | Bayer Ag | Verfahren zur herstellung von hochreinen aromatischen di- und/oder polyurethanen |
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 |
US5491256A (en) * | 1992-11-16 | 1996-02-13 | Texaco Inc. | Composition of matter for aliphatic-aromatic ureas, biurets, and allophanates as nitric oxide reducing agents in diesel emissions |
DK169700B1 (da) * | 1993-02-12 | 1995-01-16 | Topsoe Haldor As | Fremgangsmåde til fremstilling af organiske isocyanater |
DE4342426A1 (de) * | 1993-12-13 | 1995-06-14 | Bayer Ag | Verfahren zur Herstellung von Diurethanen und ihre Verwendung zur Herstellung von Diisocyanaten |
ES2166923T3 (es) * | 1996-03-15 | 2002-05-01 | Bayer Ag | Procedimiento para la disociacion termica de esteres de acidos carbamicos. |
US6160143A (en) * | 2000-02-18 | 2000-12-12 | Artisan Industries Inc. | Method for the concentration and separation of sterols |
EP1259480B1 (en) * | 2000-02-29 | 2005-10-05 | Huntsman International Llc | Process for the preparation of organic polyisocyanates |
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 |
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 |
BRPI0718144B1 (pt) * | 2006-11-17 | 2017-04-04 | Asahi Kasei Chemicals Corp | processo para produzir um isocianato, e, policarbamato de arila |
DE102006057118A1 (de) * | 2006-12-04 | 2008-06-05 | Wacker Chemie Ag | Verfahren zur Herstellung von Isocyanatoorganosilanen |
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 |
WO2009066616A1 (ja) | 2007-11-19 | 2009-05-28 | Asahi Kasei Chemicals Corporation | 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 |
KR101525641B1 (ko) | 2008-05-15 | 2015-06-03 | 아사히 가세이 케미칼즈 가부시키가이샤 | 이소시아네이트의 제조 방법 |
CA2721357C (en) * | 2008-05-15 | 2014-01-07 | Asahi Kasei Chemicals Corporation | Process for producing isocyanates using diaryl carbonate |
EP3153499B1 (en) | 2009-08-21 | 2018-09-19 | Asahi Kasei Kabushiki Kaisha | Method for producing n-substituted carbamic acid ester |
DE102009045849B4 (de) * | 2009-10-20 | 2018-03-08 | Technische Universität Bergakademie Freiberg | Verfahren zur Herstellung von Oligo- und Polysiloxanen |
JP5731530B2 (ja) | 2009-12-01 | 2015-06-10 | ビーエーエスエフ ソシエタス・ヨーロピアBasf Se | カルバメートの熱的開裂によるイソシアネートの製造方法 |
PT2507206E (pt) | 2009-12-04 | 2014-12-26 | Basf Se | Método para a produção de isocianatos |
JP5823982B2 (ja) | 2010-01-19 | 2015-11-25 | ビーエーエスエフ ソシエタス・ヨーロピアBasf Se | カルバメートの熱的分離によるイソシアネートの調製方法 |
US8680323B2 (en) | 2010-01-19 | 2014-03-25 | Basf Se | Process for preparing isocyanates by thermal dissociation of carbamates |
CN102947267A (zh) * | 2010-06-22 | 2013-02-27 | 巴斯夫欧洲公司 | 在固体路易斯酸上非均相催化氨基甲酸酯离解以合成异氰酸酯 |
EP2626345B1 (en) | 2010-10-04 | 2019-01-16 | Asahi Kasei Kabushiki Kaisha | Separation method and method for producing isocyanate |
SG192555A1 (en) | 2011-02-21 | 2013-09-30 | Asahi Kasei Chemicals Corp | Process for producing carbonyl compounds |
WO2016156188A1 (de) | 2015-03-31 | 2016-10-06 | Basf Se | Verfahren zur herstellung von isocyanaten durch carbamatspaltung |
CN109503648B (zh) * | 2017-09-15 | 2024-05-28 | 张家港市国泰华荣化工新材料有限公司 | 制备3-异氰酸酯基丙基三甲氧基硅烷的装置 |
JP2019199427A (ja) * | 2018-05-15 | 2019-11-21 | 旭化成株式会社 | イソシアネートの製造方法 |
JP2019199430A (ja) * | 2018-05-15 | 2019-11-21 | 旭化成株式会社 | イソシアネートの製造方法 |
JP2019199428A (ja) * | 2018-05-15 | 2019-11-21 | 旭化成株式会社 | イソシアネートの製造方法 |
JP2019199429A (ja) * | 2018-05-15 | 2019-11-21 | 旭化成株式会社 | イソシアネートの製造方法 |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2713591A (en) * | 1955-07-19 | boc boctanaib | ||
US2409712A (en) * | 1944-02-03 | 1946-10-22 | Du Pont | Chemical process and products |
US2692275A (en) * | 1953-01-23 | 1954-10-19 | Rohm & Haas | Preparation of 1, 8-diisocyanato-p-menthane |
GB763635A (es) * | 1953-04-10 | |||
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 |
US3962302A (en) * | 1974-03-08 | 1976-06-08 | Atlantic Richfield Company | Production of isocyanates from esters of carbamic acids (urethanes) |
US3919278A (en) * | 1974-06-13 | 1975-11-11 | Atlantic Richfield Co | Production of isocyanates from lower alkyl esters of mononuclear aromatic carbamic acids |
US3919279A (en) * | 1974-06-26 | 1975-11-11 | Atlantic Richfield Co | Catalytic production of isocyanates from esters of carbamic acids |
US3919280A (en) * | 1974-07-05 | 1975-11-11 | Atlantic Richfield Co | Recovery of solvents employed in the production of isocyanates from esters of carbamic acids |
JPS5219624A (en) * | 1975-08-07 | 1977-02-15 | Mitsui Toatsu Chem Inc | Process for preparation of isocyanates |
JPS5439002A (en) * | 1977-08-30 | 1979-03-24 | Mitsubishi Chem Ind Ltd | Preparation of isocyanates |
JPS5488222A (en) * | 1977-12-20 | 1979-07-13 | Mitsubishi Chem Ind Ltd | Preparation of isocyanate from carbamate |
JPS6052693B2 (ja) * | 1977-12-22 | 1985-11-20 | 三菱化学株式会社 | カルバミン酸エステルからのイソシアネ−トの製造法 |
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 |
-
1982
- 1982-04-27 DE DE19823215591 patent/DE3215591A1/de not_active Withdrawn
-
1983
- 1983-04-08 CA CA000425476A patent/CA1216588A/en not_active Expired
- 1983-04-14 EP EP83103587A patent/EP0092738B1/de not_active Expired
- 1983-04-14 DE DE8383103587T patent/DE3360430D1/de not_active Expired
- 1983-04-15 US US06/485,347 patent/US4692550A/en not_active Expired - Fee Related
- 1983-04-25 JP JP58071569A patent/JPS58194849A/ja active Granted
- 1983-04-26 BR BR8302136A patent/BR8302136A/pt not_active IP Right Cessation
- 1983-04-27 ES ES521887A patent/ES8402260A1/es not_active Expired
Also Published As
Publication number | Publication date |
---|---|
ES521887A0 (es) | 1984-01-16 |
JPS58194849A (ja) | 1983-11-12 |
CA1216588A (en) | 1987-01-13 |
BR8302136A (pt) | 1983-12-27 |
EP0092738A1 (de) | 1983-11-02 |
EP0092738B1 (de) | 1985-07-24 |
US4692550A (en) | 1987-09-08 |
DE3215591A1 (de) | 1983-10-27 |
DE3360430D1 (en) | 1985-08-29 |
JPH0211581B2 (es) | 1990-03-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FD1A | Patent lapsed |
Effective date: 20010402 |