KR100375905B1 - 디니트로톨루엔의제조방법 - Google Patents
디니트로톨루엔의제조방법 Download PDFInfo
- Publication number
- KR100375905B1 KR100375905B1 KR1019950024653A KR19950024653A KR100375905B1 KR 100375905 B1 KR100375905 B1 KR 100375905B1 KR 1019950024653 A KR1019950024653 A KR 1019950024653A KR 19950024653 A KR19950024653 A KR 19950024653A KR 100375905 B1 KR100375905 B1 KR 100375905B1
- Authority
- KR
- South Korea
- Prior art keywords
- acid
- weight
- nitric acid
- phase
- weight percent
- 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 abstract description 24
- 238000004519 manufacturing process Methods 0.000 title abstract description 7
- 239000002253 acid Substances 0.000 claims abstract description 63
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims abstract description 48
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims abstract description 46
- 229910017604 nitric acid Inorganic materials 0.000 claims abstract description 46
- 238000006396 nitration reaction Methods 0.000 claims abstract description 33
- 239000012071 phase Substances 0.000 claims abstract description 32
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 28
- ZPTVNYMJQHSSEA-UHFFFAOYSA-N 4-nitrotoluene Chemical compound CC1=CC=C([N+]([O-])=O)C=C1 ZPTVNYMJQHSSEA-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000012074 organic phase Substances 0.000 claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000011541 reaction mixture Substances 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims description 34
- 239000000203 mixture Substances 0.000 claims description 9
- 239000006227 byproduct Substances 0.000 claims description 4
- 238000001704 evaporation Methods 0.000 claims description 4
- 230000008020 evaporation Effects 0.000 claims description 4
- VLZLOWPYUQHHCG-UHFFFAOYSA-N nitromethylbenzene Chemical class [O-][N+](=O)CC1=CC=CC=C1 VLZLOWPYUQHHCG-UHFFFAOYSA-N 0.000 claims description 4
- 239000011368 organic material Substances 0.000 claims description 4
- 238000004821 distillation Methods 0.000 claims description 3
- 229910010272 inorganic material Inorganic materials 0.000 claims description 3
- 239000011147 inorganic material Substances 0.000 claims description 3
- 238000010924 continuous production Methods 0.000 claims description 2
- VMMLSJNPNVTYMN-UHFFFAOYSA-N dinitromethylbenzene Chemical class [O-][N+](=O)C([N+]([O-])=O)C1=CC=CC=C1 VMMLSJNPNVTYMN-UHFFFAOYSA-N 0.000 claims description 2
- 238000004064 recycling Methods 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 description 19
- 239000002699 waste material Substances 0.000 description 16
- 201000004428 dysembryoplastic neuroepithelial tumor Diseases 0.000 description 10
- 238000001816 cooling Methods 0.000 description 6
- 238000009413 insulation Methods 0.000 description 6
- 238000009833 condensation Methods 0.000 description 5
- 230000005494 condensation Effects 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- 150000001412 amines Chemical class 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 150000001491 aromatic compounds Chemical class 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 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 3
- 229910002651 NO3 Inorganic materials 0.000 description 2
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000005984 hydrogenation reaction Methods 0.000 description 2
- 230000000802 nitrating effect Effects 0.000 description 2
- 150000002894 organic compounds Chemical class 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- INYDMNPNDHRJQJ-UHFFFAOYSA-N 3,4-dinitrotoluene Chemical compound CC1=CC=C([N+]([O-])=O)C([N+]([O-])=O)=C1 INYDMNPNDHRJQJ-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- 238000006887 Ullmann reaction Methods 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- 238000010327 methods by industry Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- 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
-
- 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
Description
Claims (4)
- (A) (1) 톨루엔과(2) (a) (i) 황산 약 60내지 약 90 중량%,(ii) 질산 약 1 내지 약 20 중량% 및(iii) 물 5 중량% 이상을 포함하는 무기 물질 80 내지 100 중량% 및(b) (i) 니트로톨루엔 이성질체 약 70 중량% 및(ii) 니트로화 반응의 부산물 0 내지 약 30 중량%를 포함하는 유기 물질 0 내지 약 20 중량%로 이루어진 니트로화 산을, 질산 대 톨루엔의 몰비가 0.7:1 이상 1.2:1이하인 양으로 약 0 내지 약 100 ℃의 온도에서 연속적으로 작동하는 반응기 중에서 등온적으로 반응시키는 단계,(B) 단계 (A)의 반응 혼합물을 산상 및 유기상으로 분리시키는 단계,(C) 단계 (B)에서 분리된 유기상과(a) (i) 황산 약 60내지 약 90 중량%,(ii) 질산 약 1 내지 약 20 중량% 및(iii ) 물 5 중량% 이상을 포함하는 무기 물질 약 80 내지 약 100 중량% 및(b) (i) 니트로톨루엔 이성질체 약 70내지 100 중량% 및(ii) 니트로화 반응의 부산물 0내지 약 30 중량%를 포함하는 유기 물질 0 내지 약 20 중량%로 이루어진 니트로화 산을, 질산 대 모노니트로톨루엔의 몰비가 0.7:1 이상 1.2:1 이하가 되는 양으로 약 20 내지 약 200 ℃의 온도에서 단열 조건 하에 반응시키는 단계,(D) 단계 (C)의 반응 혼합물을 유기상 및 산상으로 분리시키는 단계,(E) 단계 (D)에서 분리된 산상으로부터 물 5중량%이상을 제거하는 단계,(F) 단계 (E)에서 얻은 산상에 50내지 100 %질산을 첨가하는 단계, 및(G) 단계 (F)의 산상을 재순환시키는 단계를 포함하는, 디니트로톨루엔 이성질체 혼합물의 2단계 연속 제조 방법.
- 제l항에 있어서, 상기 단계 (E)를 증류시켜 수행하는 방법.
- 제1항에 있어서, 상기 단계 (E)를 플래쉬 증발시켜 수행하는 방법.
- 제1항에 있어서, 상기 단계 (E)를 열을 동시에 공급하면서 플래쉬 증발시켜 수행하는 방법.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEP4428462.4 | 1994-08-11 | ||
DE4428462A DE4428462A1 (de) | 1994-08-11 | 1994-08-11 | Verfahren zur Herstellung von Dinitrotoluol |
Publications (2)
Publication Number | Publication Date |
---|---|
KR960007531A KR960007531A (ko) | 1996-03-22 |
KR100375905B1 true KR100375905B1 (ko) | 2003-04-21 |
Family
ID=6525455
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019950024653A KR100375905B1 (ko) | 1994-08-11 | 1995-08-10 | 디니트로톨루엔의제조방법 |
Country Status (10)
Country | Link |
---|---|
US (1) | US5689018A (ko) |
EP (1) | EP0696571B1 (ko) |
JP (1) | JP3631814B2 (ko) |
KR (1) | KR100375905B1 (ko) |
CN (1) | CN1075054C (ko) |
BR (1) | BR9503612A (ko) |
CA (1) | CA2155562C (ko) |
DE (2) | DE4428462A1 (ko) |
ES (1) | ES2144074T3 (ko) |
TW (1) | TW314508B (ko) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19521614A1 (de) * | 1995-06-14 | 1996-12-19 | Bayer Ag | Verfahren zur Herstellung von Dinitrotoluol |
DE10055359C1 (de) * | 2000-11-08 | 2002-03-28 | Bayer Ag | Kontinuierliches isothermes Verfahren zur Herstellung von Mononitrotoluolen |
DE10345601A1 (de) * | 2003-09-29 | 2005-05-12 | Basf Ag | Verfahren zur Entfernung von Nitrokresolen aus Abwasser der Mononitrotoluolherstellung und zur weiteren Verwendung des Extraktes |
DE102004005913A1 (de) | 2004-02-05 | 2005-08-25 | Basf Ag | Verfahren zur Herstellung von Dinitrotoluol |
US7041858B1 (en) * | 2005-02-09 | 2006-05-09 | Bayer Materialscience Llc | Process for the production of dinitrotoluene |
CN100369885C (zh) * | 2006-01-17 | 2008-02-20 | 甘肃银光化学工业集团有限公司 | 连续制备二硝基甲苯的方法及其装置 |
DE102006033722A1 (de) * | 2006-07-21 | 2008-01-24 | Bayer Materialscience Ag | Verfahren zur Herstellung von Dinitrotoluol |
CN101544567B (zh) * | 2008-03-28 | 2012-07-25 | 中国科学院大连化学物理研究所 | 一步法合成二硝基甲苯的硝化方法 |
DE102018217955B4 (de) * | 2018-10-19 | 2020-06-04 | Plinke Gmbh | Verfahren zur Aufarbeitung von Mischsäure und Abwasser aus der Nitrierung von Aromaten sowie Vorrichtung zur Durchführung des Verfahrens |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1333444A (fr) * | 1962-09-11 | 1963-07-26 | Ici Ltd | Dinitration du toluène |
US3928475A (en) * | 1974-08-09 | 1975-12-23 | Du Pont | Azeotropic nitration of benzene |
US4021498A (en) * | 1975-12-09 | 1977-05-03 | American Cyanamid Company | Adiabatic process for nitration of nitratable aromatic compounds |
US4091042A (en) * | 1977-08-19 | 1978-05-23 | American Cyanamid Company | Continuous adiabatic process for the mononitration of benzene |
US4367347A (en) * | 1981-06-01 | 1983-01-04 | Air Products And Chemicals, Inc. | High purity 2,4-dinitrotoluene from toluene nitration process |
US4453027A (en) * | 1982-12-10 | 1984-06-05 | Monsanto Company | Adiabatic process for the nitration of halobenzenes |
DE3409719A1 (de) * | 1984-03-16 | 1985-09-19 | Bayer Ag, 5090 Leverkusen | Verfahren zur herstellung von dinitrotoluol |
EP0436443B1 (en) * | 1990-01-04 | 1996-04-17 | Nrm International Technologies C.V. | Nitration process |
US5057632A (en) * | 1990-10-22 | 1991-10-15 | Olin Corporation | Process for preparing dinitrotoluene |
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 |
-
1994
- 1994-08-11 DE DE4428462A patent/DE4428462A1/de not_active Withdrawn
-
1995
- 1995-07-31 DE DE59507681T patent/DE59507681D1/de not_active Expired - Fee Related
- 1995-07-31 ES ES95111996T patent/ES2144074T3/es not_active Expired - Lifetime
- 1995-07-31 EP EP95111996A patent/EP0696571B1/de not_active Expired - Lifetime
- 1995-08-03 US US08/510,803 patent/US5689018A/en not_active Expired - Fee Related
- 1995-08-07 CA CA002155562A patent/CA2155562C/en not_active Expired - Fee Related
- 1995-08-09 JP JP22279395A patent/JP3631814B2/ja not_active Expired - Fee Related
- 1995-08-10 BR BR9503612A patent/BR9503612A/pt not_active IP Right Cessation
- 1995-08-10 KR KR1019950024653A patent/KR100375905B1/ko not_active IP Right Cessation
- 1995-08-11 TW TW084108355A patent/TW314508B/zh active
- 1995-08-11 CN CN95109295A patent/CN1075054C/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CA2155562A1 (en) | 1996-02-12 |
CN1075054C (zh) | 2001-11-21 |
CA2155562C (en) | 2006-11-14 |
EP0696571A3 (de) | 1998-06-10 |
BR9503612A (pt) | 1996-04-30 |
DE59507681D1 (de) | 2000-03-02 |
US5689018A (en) | 1997-11-18 |
DE4428462A1 (de) | 1996-02-15 |
CN1121507A (zh) | 1996-05-01 |
ES2144074T3 (es) | 2000-06-01 |
EP0696571A2 (de) | 1996-02-14 |
JPH0859565A (ja) | 1996-03-05 |
JP3631814B2 (ja) | 2005-03-23 |
EP0696571B1 (de) | 2000-01-26 |
TW314508B (ko) | 1997-09-01 |
KR960007531A (ko) | 1996-03-22 |
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