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
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).
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 |
---|---|---|---|
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 Before (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) | US5883291A (es) |
EP (2) | EP0795544B1 (es) |
JP (2) | JP4031551B2 (es) |
CA (2) | CA2199919A1 (es) |
DE (2) | DE59705128D1 (es) |
ES (2) | ES2166923T3 (es) |
Families Citing this family (26)
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 |
EP1259480B1 (en) * | 2000-02-29 | 2005-10-05 | Huntsman International Llc | Process for the preparation of organic polyisocyanates |
SG115512A1 (en) | 2001-12-28 | 2005-10-28 | Mitsui Takeda Chemicals Inc | Method for producing carbamates and method for producing isocyanates |
CA2669650C (en) * | 2006-11-17 | 2012-01-24 | Asahi Kasei Chemicals Corporation | A process for producing isocyanates |
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 |
KR101363232B1 (ko) * | 2008-05-15 | 2014-02-12 | 아사히 가세이 케미칼즈 가부시키가이샤 | 탄산디아릴을 이용하는 이소시아네이트의 제조 방법 |
US9233918B2 (en) * | 2008-05-15 | 2016-01-12 | Asahi Kasei Chemicals Corporation | Isocyanate production process |
PT2507205E (pt) | 2009-12-01 | 2014-08-22 | Basf Se | Processo para a produção de isocianatos por dissociação térmica de carbamatos |
CN102666479B (zh) | 2009-12-04 | 2014-11-05 | 巴斯夫欧洲公司 | 制备异氰酸酯的方法 |
BR112012017877A2 (pt) | 2010-01-19 | 2016-05-03 | Basf Se | processo para preparar isocianatos |
US8680323B2 (en) | 2010-01-19 | 2014-03-25 | Basf Se | Process for preparing isocyanates by thermal dissociation of carbamates |
US20110313192A1 (en) | 2010-06-22 | 2011-12-22 | Basf Se | Heterogeneously catalyzed carbamate dissociation for synthesis of isocyanates over solid lewis acids |
US9884810B2 (en) | 2010-10-04 | 2018-02-06 | Asahi Kasei Chemicals Corporation | 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 |
EA201390236A1 (ru) | 2012-01-25 | 2014-10-30 | Асахи Касеи Кемикалз Корпорейшн | Способ разделения |
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 |
EP3169690B1 (en) | 2014-07-14 | 2018-12-05 | 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 |
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)
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 |
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) |
-
1997
- 1997-03-03 ES ES97103445T patent/ES2166923T3/es not_active Expired - Lifetime
- 1997-03-03 EP EP97103445A patent/EP0795544B1/de not_active Expired - Lifetime
- 1997-03-03 DE DE59705128T patent/DE59705128D1/de not_active Expired - Lifetime
- 1997-03-03 EP EP97103444A patent/EP0795543B1/de not_active Expired - Lifetime
- 1997-03-03 ES ES97103444T patent/ES2166922T3/es not_active Expired - Lifetime
- 1997-03-03 DE DE59705127T patent/DE59705127D1/de not_active Expired - Lifetime
- 1997-03-06 US US08/812,610 patent/US5883291A/en not_active Expired - Lifetime
- 1997-03-06 US US08/811,801 patent/US5731458A/en not_active Expired - Lifetime
- 1997-03-13 CA CA002199919A patent/CA2199919A1/en not_active Abandoned
- 1997-03-13 JP JP07671597A patent/JP4031551B2/ja not_active Expired - Fee Related
- 1997-03-13 CA CA002199913A patent/CA2199913C/en not_active Expired - Fee Related
- 1997-03-13 JP JP07671497A patent/JP4031550B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0795543A1 (de) | 1997-09-17 |
JP4031550B2 (ja) | 2008-01-09 |
CA2199919A1 (en) | 1997-09-15 |
US5731458A (en) | 1998-03-24 |
US5883291A (en) | 1999-03-16 |
EP0795543B1 (de) | 2001-10-31 |
JP4031551B2 (ja) | 2008-01-09 |
CA2199913C (en) | 2006-05-16 |
EP0795544A1 (de) | 1997-09-17 |
DE59705128D1 (de) | 2001-12-06 |
JPH09249633A (ja) | 1997-09-22 |
ES2166923T3 (es) | 2002-05-01 |
DE59705127D1 (de) | 2001-12-06 |
CA2199913A1 (en) | 1997-09-15 |
JPH09249632A (ja) | 1997-09-22 |
EP0795544B1 (de) | 2001-10-31 |
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