ES2176878T3 - Procedimiento para la fabricacion de dinitrotolueno en funcionamiento adiabatico. - Google Patents
Procedimiento para la fabricacion de dinitrotolueno en funcionamiento adiabatico.Info
- Publication number
- ES2176878T3 ES2176878T3 ES98118579T ES98118579T ES2176878T3 ES 2176878 T3 ES2176878 T3 ES 2176878T3 ES 98118579 T ES98118579 T ES 98118579T ES 98118579 T ES98118579 T ES 98118579T ES 2176878 T3 ES2176878 T3 ES 2176878T3
- Authority
- ES
- Spain
- Prior art keywords
- dnt
- solvent
- mixture
- liquids
- dinitrotoluene
- 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
- DYSXLQBUUOPLBB-UHFFFAOYSA-N 2,3-dinitrotoluene Chemical compound CC1=CC=CC([N+]([O-])=O)=C1[N+]([O-])=O DYSXLQBUUOPLBB-UHFFFAOYSA-N 0.000 title abstract 2
- 238000004519 manufacturing process Methods 0.000 title 1
- 238000000034 method Methods 0.000 title 1
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 abstract 6
- 239000007788 liquid Substances 0.000 abstract 5
- 239000000203 mixture Substances 0.000 abstract 4
- 239000002904 solvent Substances 0.000 abstract 4
- 238000006243 chemical reaction Methods 0.000 abstract 3
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 abstract 1
- 239000002253 acid Substances 0.000 abstract 1
- 238000006396 nitration reaction Methods 0.000 abstract 1
- 229910017604 nitric acid Inorganic materials 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C201/00—Preparation of esters of nitric or nitrous acid or of compounds containing nitro or nitroso groups bound to a carbon skeleton
- C07C201/06—Preparation of nitro compounds
- C07C201/08—Preparation of nitro compounds by substitution of hydrogen atoms by nitro groups
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
DINITROTOLUENOS SE OBTIENEN MEDIANTE NITRACION ADIABATICA DE TOLUENO CON ACIDO NITRICO A TEMPERATURAS DE 60 A 20° C Y CON UNA REACCION MOLAR DE TOLUENO CON RESPECTO AL ACIDO NITRICO DE 1 : 1,5 HASTA 1 : 3,0, CONCENTRANDO LA MEZCLA OBTENIDA HASTA QUE TENGA UN CONTENIDO EN AGUA DE HASTA EL 30 % EN PESO, EL DINITROTOLUENO QUE ESTA PRESENTE EN LA MEZCLA SE QUITA ANTES O DESPUES DE LA CONCENTRACION DE LA MEZCLA TOTAL O PARCIALMENTE, EL QUE SE ENCUENTRA EN LOS LIQUIDOS QUE SE FORMAN DURANTE LA CONCENTRACION DE LA MEZCLA, SE MANTIENE LIQUIDO MEDIANTE LA ADICION DE UN DISOLVENTE, EL DISOLVENTE JUNTO CON LOS LIQUIDOS CON EL DNT SE SEPARA DE LA FASE ACUOSA Y A CONTINUACION SE SEPARA EL DNT DEL DISOLVENTE O SE LLEVA OTRA VEZ A LOS LIQUIDOS, Y EL DNT QUE SE HA SEPARADO DE LOS LIQUIDOS SE UNE CON EL DNT QUE SE HA OBTENIDO DE LA MEZCLA, O SE LLEVA OTRA VEZ A LA REACCION, O JUNTO CON EL DNT SEPARADO DEL DISOLVENTE SE LLEVA OTRA VEZ A LA REACCION.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19745119A DE19745119A1 (de) | 1997-10-13 | 1997-10-13 | Verfahren zur Herstellung von Dinitrotoluol in adiabatischer Fahrweise |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES2176878T3 true ES2176878T3 (es) | 2002-12-01 |
Family
ID=7845357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES98118579T Expired - Lifetime ES2176878T3 (es) | 1997-10-13 | 1998-10-01 | Procedimiento para la fabricacion de dinitrotolueno en funcionamiento adiabatico. |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US6528690B2 (es) |
| EP (1) | EP0908442B1 (es) |
| JP (1) | JP4241968B2 (es) |
| CN (1) | CN1107050C (es) |
| BR (1) | BR9804440A (es) |
| CA (1) | CA2249857A1 (es) |
| DE (2) | DE19745119A1 (es) |
| ES (1) | ES2176878T3 (es) |
| TW (1) | TW546277B (es) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10329303A1 (de) * | 2003-06-30 | 2005-02-03 | Bayer Materialscience Ag | Verfahren zur Aufarbeitung des bei der Herstellung von Dinitrotoluol anfallenden Abwassers |
| DE102006033722A1 (de) * | 2006-07-21 | 2008-01-24 | Bayer Materialscience Ag | Verfahren zur Herstellung von Dinitrotoluol |
| CN102838489B (zh) * | 2012-09-19 | 2014-05-28 | 辽宁庆阳特种化工有限公司 | 一种二硝基甲苯的清洁生产方法及装置 |
| EP3142996B1 (de) | 2014-05-13 | 2019-02-27 | Covestro Deutschland AG | Verfahren zur herstellung von toluylendiamin |
| DE102017110084C5 (de) * | 2017-02-03 | 2026-02-26 | Josef Meissner Gmbh & Co. Kg | Verwendungen von Nitroaromaten in der adiabatischen Nitrierung von Aromaten |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3409719A1 (de) | 1984-03-16 | 1985-09-19 | Bayer Ag, 5090 Leverkusen | Verfahren zur herstellung von dinitrotoluol |
| DE4309140C2 (de) * | 1993-03-22 | 2001-09-20 | Bayer Ag | Verfahren zur Herstellung von Dinitrotoluol |
| TW236610B (en) * | 1992-11-13 | 1994-12-21 | Bayer Ag | Preparation of dinitrotoluene |
| DE4428461A1 (de) | 1994-08-11 | 1996-02-15 | Bayer Ag | Verfahren zur Herstellung von Dinitrotoluol |
| DE4428459A1 (de) | 1994-08-11 | 1996-02-15 | Bayer Ag | Verfahren zur Herstellung von Dinitrotoluol |
-
1997
- 1997-10-13 DE DE19745119A patent/DE19745119A1/de not_active Withdrawn
-
1998
- 1998-10-01 DE DE59803903T patent/DE59803903D1/de not_active Expired - Lifetime
- 1998-10-01 ES ES98118579T patent/ES2176878T3/es not_active Expired - Lifetime
- 1998-10-01 EP EP98118579A patent/EP0908442B1/de not_active Expired - Lifetime
- 1998-10-08 CA CA002249857A patent/CA2249857A1/en not_active Abandoned
- 1998-10-10 US US09/169,087 patent/US6528690B2/en not_active Expired - Lifetime
- 1998-10-12 JP JP30321698A patent/JP4241968B2/ja not_active Expired - Fee Related
- 1998-10-13 TW TW087116924A patent/TW546277B/zh not_active IP Right Cessation
- 1998-10-13 BR BR9804440-0A patent/BR9804440A/pt not_active IP Right Cessation
- 1998-10-13 CN CN98121366A patent/CN1107050C/zh not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP4241968B2 (ja) | 2009-03-18 |
| JPH11217357A (ja) | 1999-08-10 |
| US6528690B2 (en) | 2003-03-04 |
| DE59803903D1 (de) | 2002-05-29 |
| CA2249857A1 (en) | 1999-04-13 |
| EP0908442A3 (de) | 2000-10-11 |
| CN1217319A (zh) | 1999-05-26 |
| MX9808389A (es) | 2000-04-30 |
| EP0908442A2 (de) | 1999-04-14 |
| EP0908442B1 (de) | 2002-04-24 |
| US20030028056A1 (en) | 2003-02-06 |
| HK1020043A1 (en) | 2000-03-10 |
| TW546277B (en) | 2003-08-11 |
| MX218065B (es) | 2003-12-11 |
| CN1107050C (zh) | 2003-04-30 |
| BR9804440A (pt) | 1999-12-07 |
| DE19745119A1 (de) | 1999-04-15 |
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