ES2176380T3 - Procedimiento para preparar toluilendiisocianato. - Google Patents

Procedimiento para preparar toluilendiisocianato.

Info

Publication number
ES2176380T3
ES2176380T3 ES96111809T ES96111809T ES2176380T3 ES 2176380 T3 ES2176380 T3 ES 2176380T3 ES 96111809 T ES96111809 T ES 96111809T ES 96111809 T ES96111809 T ES 96111809T ES 2176380 T3 ES2176380 T3 ES 2176380T3
Authority
ES
Spain
Prior art keywords
toluylene
diamine
toluolene
toluilene
diisocianate
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
ES96111809T
Other languages
English (en)
Inventor
Klaus Dr Biskup
Berthold Dr Keggenhoff
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7768754&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ES2176380(T3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Bayer AG filed Critical Bayer AG
Application granted granted Critical
Publication of ES2176380T3 publication Critical patent/ES2176380T3/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
    • C07C211/00—Compounds containing amino groups bound to a carbon skeleton
    • C07C211/43—Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton
    • C07C211/44—Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton having amino groups bound to only one six-membered aromatic ring
    • C07C211/49—Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton having amino groups bound to only one six-membered aromatic ring having at least two amino groups bound to the carbon skeleton
    • C07C211/50—Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton having amino groups bound to only one six-membered aromatic ring having at least two amino groups bound to the carbon skeleton with at least two amino groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C209/00—Preparation of compounds containing amino groups bound to a carbon skeleton
    • C07C209/30—Preparation of compounds containing amino groups bound to a carbon skeleton by reduction of nitrogen-to-oxygen or nitrogen-to-nitrogen bonds
    • C07C209/32—Preparation of compounds containing amino groups bound to a carbon skeleton by reduction of nitrogen-to-oxygen or nitrogen-to-nitrogen bonds by reduction of nitro groups
    • C07C209/36—Preparation of compounds containing amino groups bound to a carbon skeleton by reduction of nitrogen-to-oxygen or nitrogen-to-nitrogen bonds by reduction of nitro groups by reduction of nitro groups bound to carbon atoms of six-membered aromatic rings in presence of hydrogen-containing gases and a catalyst
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C209/00—Preparation of compounds containing amino groups bound to a carbon skeleton
    • C07C209/82—Purification; Separation; Stabilisation; Use of additives
    • C07C209/84—Purification
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C263/00—Preparation of derivatives of isocyanic acid
    • C07C263/10—Preparation of derivatives of isocyanic acid by reaction of amines with carbonyl halides, e.g. with phosgene

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)

Abstract

SE OBTIENE DIISOCIANATO DE TOLUILENO POR NITRIFICACION DE TOLUOL PARA DAR DINITROTOLUOL, HIDROGENACION DEL DINITROTOLUOL, OPCIONALMENTE EN PRESENCIA DE UN DISOLVENTE O DILUYENTE, PARA DAR UNA DISOLUCION BRUTA DE DIAMINA DE TOLUILENO Y AGUA DE REACCION, TRATAMIENTO DE LA DISOLUCION BRUTA DE DIAMINA DE TOLUILENO PARA OBTENER LA DIAMINA DE TOLUILENO SECA DE CALIDAD COMERCIAL Y FOSGENIZACION DE LA DIAMINA DE TOLUILENO PARA DAR EL DIISOCIANATO DE TOLUILENO, INTERRUMPIENDO EL TRATAMIENTO POR DESTILACION DE LA SOLUCION BRUTA DE DIAMINA DE TOLUILENO PARA DAR LA DIAMINA DE TOLUILENO SIN AGUA, OPCIONALMENTE DESPUES DE UNA SEPARACION COMPLETA O PARCIAL DE UN DISOLVENTE O DILUYENTE UTILIZADO EN UN PRIMER LUGAR DE PRODUCCION CON UN CONTENIDO EN AGUA DEL 1-40 % EN PESO, PREFERIBLEMENTE DE 2-10 % EN PESO; LA MEZCLA OBTENIDA SE TRASLADA EN FORMA LIQUIDA A OTRO LUGAR DE PRODUCCION, DONDE SE COMPLETA EL SECADO POR DESTILACION DE LA DIAMINA DE TOLUILENO, OPCIONALMENTE SE PUEDEN AÑADIR OTRAS ETAPAS DE TRATAMIENTO, Y DESPUES LA DIAMINA DE TOLUILENO SE FOSGENIZA DE MANERA CONOCIDA PARA DAR DIISOCIANATO DE TOLUILENO. LA INVENCION TAMBIEN TRATA DE MEZCLAS DE DIAMINA DE TOLUILENO Y AGUA CON UN PUNTO DE SOLIDIFICACION DE COMO MUCHO 95 C Y SU UTILIZACION PARA LA OBTENCION DE DIISOCIANATO DE TOLUILENO, QUE SE REALIZA PREFERENTEMENTE EN UN SITIO, QUE ES DIFERENTE DEL SITIO DE OBTENCION DE LA MEZCLA DE DIAMINA DE TOLUILENO Y AGUA.
ES96111809T 1995-08-04 1996-07-23 Procedimiento para preparar toluilendiisocianato. Expired - Lifetime ES2176380T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19528781A DE19528781A1 (de) 1995-08-04 1995-08-04 Verfahren zur Herstellung von Toluylendiisocyanat, spezielle Gemische aus Toluylendiamin und Wasser und deren Verwendung zur Herstellung von Toluylendiisocyanat

Publications (1)

Publication Number Publication Date
ES2176380T3 true ES2176380T3 (es) 2002-12-01

Family

ID=7768754

Family Applications (1)

Application Number Title Priority Date Filing Date
ES96111809T Expired - Lifetime ES2176380T3 (es) 1995-08-04 1996-07-23 Procedimiento para preparar toluilendiisocianato.

Country Status (15)

Country Link
US (2) US5849947A (es)
EP (2) EP1090906A1 (es)
JP (1) JP4095685B2 (es)
KR (1) KR100453862B1 (es)
CN (2) CN1163470C (es)
BR (1) BR9603278A (es)
CA (1) CA2182654A1 (es)
CZ (1) CZ292604B6 (es)
DE (2) DE19528781A1 (es)
ES (1) ES2176380T3 (es)
PL (1) PL184186B1 (es)
PT (1) PT757034E (es)
RU (1) RU2202537C2 (es)
TW (1) TW374080B (es)
UA (1) UA47399C2 (es)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100311692B1 (ko) * 1997-12-23 2001-11-15 신현준 활성탄소 섬유의 제조방법
EP1371633A1 (en) * 2002-06-14 2003-12-17 Bayer Ag Process for the purification of mixtures of toluenediisocyanate incorporating a dividing-wall distillation column
ES2271171T3 (es) * 2002-10-22 2007-04-16 Bayer Materialscience Ag Procedimiento para la purificacion de toluendiisocianato que incorpora una columna de destilacion de pared divisoria para la purificacion final.
DE10260093A1 (de) * 2002-12-19 2004-07-01 Basf Ag Verfahren zur Abtrennung von Isocyanaten aus einem Reaktionsgemisch
CN101838223B (zh) * 2005-03-10 2013-04-03 三井化学株式会社 多异氰酸酯的制造方法和多异氰酸酯的制造装置
JP5175033B2 (ja) * 2005-03-10 2013-04-03 三井化学株式会社 ポリイソシアネートの製造方法およびポリイソシアネートの製造装置
HUE033435T2 (en) * 2005-07-12 2017-11-28 Covestro Deutschland Ag Process for preparing toluenediamine
DE102005032430A1 (de) * 2005-07-12 2007-01-25 Bayer Materialscience Ag Verfahren zur Herstellung von Toluylendiamin
DE102005036870A1 (de) * 2005-08-02 2007-02-08 Bayer Materialscience Ag Verfahren zur Gasphasenphosgenierung
JP4791783B2 (ja) * 2005-08-31 2011-10-12 三井化学株式会社 ポリイソシアネートの製造方法
DE102006022447A1 (de) * 2006-05-13 2007-11-15 Bayer Materialscience Ag Verfahren zur gekoppelten Herstellung von Chlor und Isocyanaten
US8030522B2 (en) * 2006-06-07 2011-10-04 Bayer Materialscience Llc Process for the production of toluene diisocyanate
CN100455559C (zh) * 2006-11-08 2009-01-28 大连理工大学 芳香族硝基化合物还原制备芳胺的方法
DE102006059678A1 (de) * 2006-12-18 2008-06-19 Bayer Materialscience Ag Verfahren zur Herstellung von aromatischen Aminen
DE102006060572A1 (de) † 2006-12-19 2008-06-26 Bayer Materialscience Ag Verfahren zur Herstellung von Toluylendiaminen durch katalytische Hydrierung von Dinitrotoluolen
KR101531731B1 (ko) * 2007-11-27 2015-06-25 미쓰이 가가쿠 가부시키가이샤 톨릴렌다이아민의 탈수 방법 및 탈수 장치
KR20110095899A (ko) 2008-11-19 2011-08-25 바스프 에스이 이소시아네이트의 제조 방법
CN101712621B (zh) * 2009-09-02 2012-10-31 甘肃银达化工有限公司 连续制备甲苯二胺的方法
CN101671277B (zh) * 2009-09-18 2011-12-28 天津大学 一种甲苯二异氰酸酯连续生产中热集成的溶剂回收方法
WO2011113491A1 (en) * 2010-03-18 2011-09-22 Huntsman International Llc Process for the conversion of aromatic nitro compound into amines
JP5883661B2 (ja) * 2012-01-25 2016-03-15 旭化成ケミカルズ株式会社 Ｎ−置換カルバミン酸エステルの製造方法
IL236155B (en) * 2014-12-09 2021-10-31 List Holding Ag Chemical production methods and devices for their execution
HUE054424T2 (hu) * 2017-01-27 2021-09-28 Covestro Llc Eljárás stabil toluol-diamin származék/víz elegyek elõállítására, kapcsolódó készítmények, és az elegyek üzemanyagként történõ alkalmazásának eljárásai
CN110105248B (zh) * 2019-05-31 2021-07-20 上海应用技术大学 一种甲苯二异氰酸酯的制备方法
CN115461322A (zh) * 2020-05-19 2022-12-09 科思创德国股份有限公司 用于后处理甲苯二胺混合物的方法
EP4347556A1 (en) * 2021-05-25 2024-04-10 Basf Se Process for preparing at least one polyisocyanate
EP4151619A1 (en) 2021-09-20 2023-03-22 Covestro Deutschland AG Method for the removal of water from and transport of aliphatic diamines
EP4653418A1 (de) 2024-05-22 2025-11-26 Covestro Deutschland AG Verfahren zur herstellung von organischem isocyanat mit verbesserter nachhaltigkeit

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB786407A (en) * 1956-04-30 1957-11-20 Du Pont Process for the catalytic hydrogenation of organic nitro compounds
US2976320A (en) * 1957-07-30 1961-03-21 Allied Chem Catalytic hydrogenation of the dinitro derivatives of toluene
GB895197A (en) * 1960-11-25 1962-05-02 Gen Aniline & Film Corp Catalytic reduction of aromatic dinitro compounds
GB1164519A (en) * 1966-07-19 1969-09-17 Inst Chemii Ogolnej Method for preparing Toluylenediisocyanates from Dinitrotoluenes
GB1303562A (es) * 1971-03-12 1973-01-17
DE2456308A1 (de) * 1974-11-28 1976-08-12 Bayer Ag Verfahren zur herstellung von aminoverbindungen
US4224249A (en) * 1979-05-14 1980-09-23 Air Products And Chemicals, Inc. Toluene diamine from non-washed dinitrotoluene
US4717774A (en) * 1985-12-20 1988-01-05 Basf Corporation Process for the preparation of toluene diamines
DE4230098C1 (es) * 1992-09-09 1993-06-03 Bayer Ag, 5090 Leverkusen, De
US5449832A (en) * 1994-10-05 1995-09-12 Air Products And Chemicals, Inc. Process for storage and transport of toluenediamine
US5714634A (en) * 1996-06-25 1998-02-03 Air Products And Chemicals, Inc. Process for storage and transport of toluenediamine
US5693862A (en) * 1996-12-18 1997-12-02 Arco Chemical Technology, L.P. Process for transport of toluenediamine

Also Published As

Publication number Publication date
UA47399C2 (uk) 2002-07-15
PL184186B1 (pl) 2002-09-30
EP1090906A1 (de) 2001-04-11
PL315490A1 (en) 1997-02-17
CN1070474C (zh) 2001-09-05
MX195147B (es) 2000-01-31
DE19528781A1 (de) 1997-02-06
RU2202537C2 (ru) 2003-04-20
MX9603167A (es) 1997-07-31
JPH0952873A (ja) 1997-02-25
TW374080B (es) 1999-11-11
BR9603278A (pt) 1998-05-12
JP4095685B2 (ja) 2008-06-04
US5849947A (en) 1998-12-15
CN1332149A (zh) 2002-01-23
CZ292604B6 (cs) 2003-11-12
EP0757034B1 (de) 2002-06-05
KR100453862B1 (ko) 2005-04-08
KR970010735A (ko) 1997-03-27
CN1149579A (zh) 1997-05-14
US6472564B1 (en) 2002-10-29
PT757034E (pt) 2002-09-30
CN1163470C (zh) 2004-08-25
EP0757034A1 (de) 1997-02-05
CA2182654A1 (en) 1997-02-05
DE59609285D1 (de) 2002-07-11
CZ229996A3 (en) 1997-02-12

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