ZA200607374B - Method for producing dinitrotoluene - Google Patents
Method for producing dinitrotoluene Download PDFInfo
- Publication number
- ZA200607374B ZA200607374B ZA200607374A ZA200607374A ZA200607374B ZA 200607374 B ZA200607374 B ZA 200607374B ZA 200607374 A ZA200607374 A ZA 200607374A ZA 200607374 A ZA200607374 A ZA 200607374A ZA 200607374 B ZA200607374 B ZA 200607374B
- Authority
- ZA
- South Africa
- Prior art keywords
- stage
- toluene
- process according
- mnt
- nitric acid
- Prior art date
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 claims description 84
- 238000004519 manufacturing process Methods 0.000 title claims description 10
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 186
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 98
- ZPTVNYMJQHSSEA-UHFFFAOYSA-N 4-nitrotoluene Chemical compound CC1=CC=C([N+]([O-])=O)C=C1 ZPTVNYMJQHSSEA-UHFFFAOYSA-N 0.000 claims description 88
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 62
- 229910017604 nitric acid Inorganic materials 0.000 claims description 61
- 238000000034 method Methods 0.000 claims description 37
- 238000006243 chemical reaction Methods 0.000 claims description 34
- 230000008569 process Effects 0.000 claims description 33
- 238000005191 phase separation Methods 0.000 claims description 16
- 239000012074 organic phase Substances 0.000 claims description 13
- 239000008346 aqueous phase Substances 0.000 claims description 10
- 239000007795 chemical reaction product Substances 0.000 claims description 8
- 239000011541 reaction mixture Substances 0.000 claims description 8
- 238000010626 work up procedure Methods 0.000 claims description 5
- 238000006396 nitration reaction Methods 0.000 description 64
- 239000002253 acid Substances 0.000 description 42
- 239000002699 waste material Substances 0.000 description 27
- 239000000203 mixture Substances 0.000 description 17
- 230000000802 nitrating effect Effects 0.000 description 9
- 239000000047 product Substances 0.000 description 9
- VQTGUFBGYOIUFS-UHFFFAOYSA-N nitrosylsulfuric acid Chemical compound OS(=O)(=O)ON=O VQTGUFBGYOIUFS-UHFFFAOYSA-N 0.000 description 6
- 239000012071 phase Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- SPSSULHKWOKEEL-UHFFFAOYSA-N 2,4,6-trinitrotoluene Chemical compound CC1=C([N+]([O-])=O)C=C([N+]([O-])=O)C=C1[N+]([O-])=O SPSSULHKWOKEEL-UHFFFAOYSA-N 0.000 description 4
- GAKLFAZBKQGUBO-UHFFFAOYSA-N 2-methyl-3-nitrophenol Chemical class CC1=C(O)C=CC=C1[N+]([O-])=O GAKLFAZBKQGUBO-UHFFFAOYSA-N 0.000 description 4
- 150000007513 acids Chemical class 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 238000005201 scrubbing Methods 0.000 description 4
- 239000000015 trinitrotoluene Substances 0.000 description 4
- 239000012429 reaction media Substances 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 238000012958 reprocessing Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 102100034095 5'(3')-deoxyribonucleotidase, cytosolic type Human genes 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- KIQKWYUGPPFMBV-UHFFFAOYSA-N diisocyanatomethane Chemical compound O=C=NCN=C=O KIQKWYUGPPFMBV-UHFFFAOYSA-N 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 2
- XTRDKALNCIHHNI-UHFFFAOYSA-N 2,6-dinitrotoluene Chemical class CC1=C([N+]([O-])=O)C=CC=C1[N+]([O-])=O XTRDKALNCIHHNI-UHFFFAOYSA-N 0.000 description 1
- MGWGWNFMUOTEHG-UHFFFAOYSA-N 4-(3,5-dimethylphenyl)-1,3-thiazol-2-amine Chemical compound CC1=CC(C)=CC(C=2N=C(N)SC=2)=C1 MGWGWNFMUOTEHG-UHFFFAOYSA-N 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000002051 biphasic effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 1
- 238000010943 off-gassing Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 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
-
- 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
- C07C201/14—Preparation of nitro compounds by formation of nitro groups together with reactions not involving the formation of nitro groups
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C205/00—Compounds containing nitro groups bound to a carbon skeleton
- C07C205/06—Compounds containing nitro groups bound to a carbon skeleton having nitro groups bound to carbon atoms of six-membered aromatic rings
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102004005913A DE102004005913A1 (de) | 2004-02-05 | 2004-02-05 | Verfahren zur Herstellung von Dinitrotoluol |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ZA200607374B true ZA200607374B (en) | 2008-06-25 |
Family
ID=34801677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ZA200607374A ZA200607374B (en) | 2004-02-05 | 2006-09-04 | Method for producing dinitrotoluene |
Country Status (13)
| Country | Link |
|---|---|
| US (1) | US7851661B2 (fr) |
| EP (1) | EP1713756B1 (fr) |
| JP (1) | JP4554622B2 (fr) |
| KR (1) | KR101151068B1 (fr) |
| CN (1) | CN100488941C (fr) |
| BR (1) | BRPI0507293B1 (fr) |
| DE (1) | DE102004005913A1 (fr) |
| ES (1) | ES2552760T3 (fr) |
| HU (1) | HUE025592T2 (fr) |
| PL (1) | PL1713756T3 (fr) |
| PT (1) | PT1713756E (fr) |
| WO (1) | WO2005075407A1 (fr) |
| ZA (1) | ZA200607374B (fr) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006033722A1 (de) | 2006-07-21 | 2008-01-24 | Bayer Materialscience Ag | Verfahren zur Herstellung von Dinitrotoluol |
| DE102006060572A1 (de) * | 2006-12-19 | 2008-06-26 | Bayer Materialscience Ag | Verfahren zur Herstellung von Toluylendiaminen durch katalytische Hydrierung von Dinitrotoluolen |
| JP2012518674A (ja) | 2009-02-26 | 2012-08-16 | ビーエーエスエフ ソシエタス・ヨーロピア | ニトロ化芳香族化合物及びそれらの混合物の製造方法 |
| JP5175235B2 (ja) * | 2009-03-31 | 2013-04-03 | 三井化学株式会社 | ジニトロトルエンの製造方法および製造装置 |
| CN101612535B (zh) * | 2009-08-04 | 2013-05-01 | 上海巴斯夫聚氨酯有限公司 | 混合罐设有喷射式混合器的二硝基甲苯生产装置 |
| CN102276470A (zh) * | 2010-06-08 | 2011-12-14 | 中国石油化工集团公司 | 连续逆流硝化芳烃化合物的方法 |
| KR20140037139A (ko) | 2011-05-24 | 2014-03-26 | 바스프 에스이 | 바이오매스로부터 폴리이소시아네이트의 제조 방법 |
| US8933262B2 (en) | 2011-05-24 | 2015-01-13 | Basf Se | Process for preparing polyisocyanates from biomass |
| CN105102419B (zh) * | 2012-12-20 | 2017-09-29 | 巴斯夫欧洲公司 | 在甲苯至二硝基甲苯的方法中二硝基甲苯与混合酸的分离方法 |
| WO2014094270A1 (fr) | 2012-12-20 | 2014-06-26 | Basf Se | Procédé de séparation du dinitrotoluène et d'un acide mixte dans le cadre d'un procédé de transformation de toluène en dinitrotoluène |
| KR102474434B1 (ko) * | 2014-11-20 | 2022-12-07 | 코베스트로 도이칠란드 아게 | 적어도 2개의 함께 커플링된 화학 반응을 통한 생성물의 연속 제조 방법 |
| CN109467508B (zh) * | 2018-11-22 | 2021-08-10 | 四川金象赛瑞化工股份有限公司 | 一种微通道反应器合成二硝基甲苯的方法 |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2362743A (en) * | 1943-02-10 | 1944-11-14 | Hercules Powder Co Ltd | Manufacture of dinitrotoluene |
| US2947791A (en) * | 1957-01-24 | 1960-08-02 | Du Pont | Two-zone mononitration of toluene |
| IT597065A (fr) * | 1957-11-29 | |||
| DE1468362A1 (de) * | 1964-10-23 | 1968-11-28 | Meissner Fa Josef | Zweistufige Anlage zur Nitrierung von aromatischen Kohlenwasserstoffen |
| PL126089B1 (en) | 1979-12-20 | 1983-07-30 | Inst Ciezkiej Syntezy Orga | Method of manufacture of dinitrotoluene |
| US4367347A (en) * | 1981-06-01 | 1983-01-04 | Air Products And Chemicals, Inc. | High purity 2,4-dinitrotoluene from toluene nitration process |
| DE3409719A1 (de) | 1984-03-16 | 1985-09-19 | Bayer Ag, 5090 Leverkusen | Verfahren zur herstellung von dinitrotoluol |
| TW236610B (en) | 1992-11-13 | 1994-12-21 | Bayer Ag | Preparation of dinitrotoluene |
| US5275701A (en) * | 1993-03-15 | 1994-01-04 | Air Products And Chemicals, Inc. | Process for purification and concentration of sulfuric acid |
| DE4428459A1 (de) * | 1994-08-11 | 1996-02-15 | Bayer Ag | Verfahren zur Herstellung von Dinitrotoluol |
| DE4428462A1 (de) * | 1994-08-11 | 1996-02-15 | Bayer Ag | Verfahren zur Herstellung von Dinitrotoluol |
| DE19512114C2 (de) | 1995-04-04 | 2000-04-27 | Meissner Gmbh & Co Kg Josef | Rückgewinnung von Salpetersäure aus Nitrierprozessen |
| US5902910A (en) | 1997-09-19 | 1999-05-11 | Air Products And Chemicals, Inc. | Weak acid process for producing dinitrotoluene |
| US5948944A (en) * | 1998-11-18 | 1999-09-07 | Arco Chemical Technology, L.P. | Two-stage dinitrotoluene production process |
| DE10055359C1 (de) * | 2000-11-08 | 2002-03-28 | Bayer Ag | Kontinuierliches isothermes Verfahren zur Herstellung von Mononitrotoluolen |
-
2004
- 2004-02-05 DE DE102004005913A patent/DE102004005913A1/de not_active Withdrawn
-
2005
- 2005-02-02 CN CNB2005800042287A patent/CN100488941C/zh active Active
- 2005-02-02 PT PT57013054T patent/PT1713756E/pt unknown
- 2005-02-02 JP JP2006551789A patent/JP4554622B2/ja active Active
- 2005-02-02 PL PL05701305T patent/PL1713756T3/pl unknown
- 2005-02-02 KR KR1020067018074A patent/KR101151068B1/ko active IP Right Grant
- 2005-02-02 ES ES05701305.4T patent/ES2552760T3/es active Active
- 2005-02-02 HU HUE05701305A patent/HUE025592T2/en unknown
- 2005-02-02 BR BRPI0507293-0A patent/BRPI0507293B1/pt not_active IP Right Cessation
- 2005-02-02 US US10/586,683 patent/US7851661B2/en active Active
- 2005-02-02 WO PCT/EP2005/001017 patent/WO2005075407A1/fr active Application Filing
- 2005-02-02 EP EP05701305.4A patent/EP1713756B1/fr active Active
-
2006
- 2006-09-04 ZA ZA200607374A patent/ZA200607374B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CN100488941C (zh) | 2009-05-20 |
| JP4554622B2 (ja) | 2010-09-29 |
| ES2552760T3 (es) | 2015-12-02 |
| PT1713756E (pt) | 2015-11-30 |
| JP2007520512A (ja) | 2007-07-26 |
| CN1918109A (zh) | 2007-02-21 |
| EP1713756A1 (fr) | 2006-10-25 |
| DE102004005913A1 (de) | 2005-08-25 |
| EP1713756B1 (fr) | 2015-08-19 |
| KR101151068B1 (ko) | 2012-06-01 |
| WO2005075407A1 (fr) | 2005-08-18 |
| BRPI0507293A (pt) | 2007-07-03 |
| HUE025592T2 (en) | 2016-05-30 |
| US7851661B2 (en) | 2010-12-14 |
| US20080242900A1 (en) | 2008-10-02 |
| PL1713756T3 (pl) | 2016-01-29 |
| BRPI0507293B1 (pt) | 2014-05-20 |
| KR20060130203A (ko) | 2006-12-18 |
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