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
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.
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) | EP0757034B1 (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 (23)
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 |
EP1413571B1 (en) * | 2002-10-22 | 2006-08-23 | Bayer MaterialScience AG | Process for the purification of toluenediisocyanate incorporating a dividing-wall distillation column for the final purification |
DE10260093A1 (de) * | 2002-12-19 | 2004-07-01 | Basf Ag | Verfahren zur Abtrennung von Isocyanaten aus einem Reaktionsgemisch |
CN101142173B (zh) * | 2005-03-10 | 2011-06-01 | 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 |
EP1746083B1 (de) * | 2005-07-12 | 2016-12-21 | Covestro Deutschland AG | Verfahren zur Herstellung von Toluylendiamin |
DE102005032430A1 (de) * | 2005-07-12 | 2007-01-25 | Bayer Materialscience Ag | Verfahren zur Herstellung von Toluylendiamin |
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 |
WO2009069584A1 (ja) * | 2007-11-27 | 2009-06-04 | Mitsui Chemicals Polyurethanes, Inc. | トリレンジアミンの脱水方法および脱水装置 |
PT2367783E (pt) | 2008-11-19 | 2013-03-11 | Basf Se | Processo para a produção de um isocianato |
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 |
AU2010348909A1 (en) * | 2010-03-18 | 2012-08-23 | 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 |
KR102557660B1 (ko) * | 2017-01-27 | 2023-07-20 | 코베스트로 엘엘씨 | 안정한 톨루엔디아민 잔류물/물 블렌드의 제조를 위한 방법, 관련된 조성물, 및 이러한 블렌드를 연료로 사용하는 방법 |
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 |
EP4151619A1 (en) | 2021-09-20 | 2023-03-22 | Covestro Deutschland AG | Method for the removal of water from and transport of aliphatic diamines |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
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 |
-
1995
- 1995-08-04 DE DE19528781A patent/DE19528781A1/de not_active Withdrawn
-
1996
- 1996-07-23 DE DE59609285T patent/DE59609285D1/de not_active Expired - Lifetime
- 1996-07-23 ES ES96111809T patent/ES2176380T3/es not_active Expired - Lifetime
- 1996-07-23 PT PT96111809T patent/PT757034E/pt unknown
- 1996-07-23 EP EP96111809A patent/EP0757034B1/de not_active Expired - Lifetime
- 1996-07-23 EP EP01100055A patent/EP1090906A1/de not_active Ceased
- 1996-07-31 JP JP21690096A patent/JP4095685B2/ja not_active Expired - Lifetime
- 1996-08-01 US US08/691,222 patent/US5849947A/en not_active Expired - Lifetime
- 1996-08-02 CZ CZ19962299A patent/CZ292604B6/cs not_active IP Right Cessation
- 1996-08-02 CN CNB001317962A patent/CN1163470C/zh not_active Expired - Lifetime
- 1996-08-02 CN CN96111631A patent/CN1070474C/zh not_active Expired - Lifetime
- 1996-08-02 RU RU96115368/04A patent/RU2202537C2/ru active
- 1996-08-02 TW TW85109303A patent/TW374080B/zh not_active IP Right Cessation
- 1996-08-02 UA UA96083118A patent/UA47399C2/uk unknown
- 1996-08-02 PL PL96315490A patent/PL184186B1/pl not_active IP Right Cessation
- 1996-08-02 CA CA002182654A patent/CA2182654A1/en not_active Abandoned
- 1996-08-03 KR KR1019960032490A patent/KR100453862B1/ko not_active IP Right Cessation
- 1996-08-05 BR BR9603278A patent/BR9603278A/pt not_active Application Discontinuation
-
1998
- 1998-09-08 US US09/149,379 patent/US6472564B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0757034B1 (de) | 2002-06-05 |
CN1163470C (zh) | 2004-08-25 |
DE19528781A1 (de) | 1997-02-06 |
PL315490A1 (en) | 1997-02-17 |
CA2182654A1 (en) | 1997-02-05 |
UA47399C2 (uk) | 2002-07-15 |
JPH0952873A (ja) | 1997-02-25 |
CN1149579A (zh) | 1997-05-14 |
JP4095685B2 (ja) | 2008-06-04 |
RU2202537C2 (ru) | 2003-04-20 |
CN1070474C (zh) | 2001-09-05 |
CZ292604B6 (cs) | 2003-11-12 |
EP0757034A1 (de) | 1997-02-05 |
KR100453862B1 (ko) | 2005-04-08 |
DE59609285D1 (de) | 2002-07-11 |
KR970010735A (ko) | 1997-03-27 |
MX195147B (es) | 2000-01-31 |
PT757034E (pt) | 2002-09-30 |
US6472564B1 (en) | 2002-10-29 |
BR9603278A (pt) | 1998-05-12 |
CN1332149A (zh) | 2002-01-23 |
MX9603167A (es) | 1997-07-31 |
CZ229996A3 (en) | 1997-02-12 |
EP1090906A1 (de) | 2001-04-11 |
US5849947A (en) | 1998-12-15 |
PL184186B1 (pl) | 2002-09-30 |
TW374080B (es) | 1999-11-11 |
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