KR100869014B1 - 인산의 존재하에 모노니트로톨루엔의 연속 등온 제조 방법 - Google Patents
인산의 존재하에 모노니트로톨루엔의 연속 등온 제조 방법 Download PDFInfo
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- KR100869014B1 KR100869014B1 KR1020020018489A KR20020018489A KR100869014B1 KR 100869014 B1 KR100869014 B1 KR 100869014B1 KR 1020020018489 A KR1020020018489 A KR 1020020018489A KR 20020018489 A KR20020018489 A KR 20020018489A KR 100869014 B1 KR100869014 B1 KR 100869014B1
- Authority
- KR
- South Korea
- Prior art keywords
- acid
- reactor
- toluene
- concentration
- concentrated
- Prior art date
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- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 title claims abstract description 90
- 229910000147 aluminium phosphate Inorganic materials 0.000 title claims abstract description 44
- ZPTVNYMJQHSSEA-UHFFFAOYSA-N 4-nitrotoluene Chemical class CC1=CC=C([N+]([O-])=O)C=C1 ZPTVNYMJQHSSEA-UHFFFAOYSA-N 0.000 title abstract description 26
- 238000004519 manufacturing process Methods 0.000 title abstract description 6
- 239000002253 acid Substances 0.000 claims abstract description 108
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 96
- 238000000034 method Methods 0.000 claims abstract description 67
- 239000002699 waste material Substances 0.000 claims abstract description 40
- 239000000203 mixture Substances 0.000 claims abstract description 27
- 238000004064 recycling Methods 0.000 claims abstract description 7
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 119
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 38
- 229910017604 nitric acid Inorganic materials 0.000 claims description 38
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 23
- 238000006243 chemical reaction Methods 0.000 claims description 20
- VLZLOWPYUQHHCG-UHFFFAOYSA-N nitromethylbenzene Chemical compound [O-][N+](=O)CC1=CC=CC=C1 VLZLOWPYUQHHCG-UHFFFAOYSA-N 0.000 claims description 20
- 238000005191 phase separation Methods 0.000 claims description 2
- 235000019353 potassium silicate Nutrition 0.000 claims description 2
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 2
- 239000007791 liquid phase Substances 0.000 claims 1
- 235000011007 phosphoric acid Nutrition 0.000 description 38
- 150000002894 organic compounds Chemical class 0.000 description 12
- PLAZTCDQAHEYBI-UHFFFAOYSA-N 2-nitrotoluene Chemical compound CC1=CC=CC=C1[N+]([O-])=O PLAZTCDQAHEYBI-UHFFFAOYSA-N 0.000 description 11
- 238000005121 nitriding Methods 0.000 description 10
- 239000006227 byproduct Substances 0.000 description 9
- DYSXLQBUUOPLBB-UHFFFAOYSA-N 2,3-dinitrotoluene Chemical compound CC1=CC=CC([N+]([O-])=O)=C1[N+]([O-])=O DYSXLQBUUOPLBB-UHFFFAOYSA-N 0.000 description 8
- 230000003068 static effect Effects 0.000 description 7
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 6
- QZYHIOPPLUPUJF-UHFFFAOYSA-N 3-nitrotoluene Chemical compound CC1=CC=CC([N+]([O-])=O)=C1 QZYHIOPPLUPUJF-UHFFFAOYSA-N 0.000 description 5
- ZXVONLUNISGICL-UHFFFAOYSA-N 4,6-dinitro-o-cresol Chemical compound CC1=CC([N+]([O-])=O)=CC([N+]([O-])=O)=C1O ZXVONLUNISGICL-UHFFFAOYSA-N 0.000 description 5
- 238000000354 decomposition reaction Methods 0.000 description 4
- 238000004821 distillation Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000012856 packing Methods 0.000 description 4
- QTWJRLJHJPIABL-UHFFFAOYSA-N 2-methylphenol;3-methylphenol;4-methylphenol Chemical compound CC1=CC=C(O)C=C1.CC1=CC=CC(O)=C1.CC1=CC=CC=C1O QTWJRLJHJPIABL-UHFFFAOYSA-N 0.000 description 3
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 3
- 150000007513 acids Chemical class 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 229930003836 cresol Natural products 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 238000006396 nitration reaction Methods 0.000 description 3
- YNGRGHODNDCZCC-UHFFFAOYSA-N nitro hydrogen sulfate Chemical compound OS(=O)(=O)O[N+]([O-])=O YNGRGHODNDCZCC-UHFFFAOYSA-N 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- BIEJAMTZADTVGI-UHFFFAOYSA-N C1(=CC=CC=C1)C.[Ag] Chemical compound C1(=CC=CC=C1)C.[Ag] BIEJAMTZADTVGI-UHFFFAOYSA-N 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 125000003118 aryl group Chemical group 0.000 description 2
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- -1 nitrile nitride Chemical class 0.000 description 2
- LQNUZADURLCDLV-UHFFFAOYSA-N nitrobenzene Chemical compound [O-][N+](=O)C1=CC=CC=C1 LQNUZADURLCDLV-UHFFFAOYSA-N 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 229920000137 polyphosphoric acid Polymers 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 239000005711 Benzoic acid Substances 0.000 description 1
- IOVCWXUNBOPUCH-UHFFFAOYSA-N Nitrous acid Chemical compound ON=O IOVCWXUNBOPUCH-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000010233 benzoic acid Nutrition 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000007844 bleaching agent Substances 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 150000001896 cresols Chemical class 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 210000003298 dental enamel Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000012770 industrial material Substances 0.000 description 1
- 150000002484 inorganic compounds Chemical class 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- 230000001546 nitrifying effect Effects 0.000 description 1
- 150000002825 nitriles Chemical class 0.000 description 1
- 150000005181 nitrobenzenes Chemical class 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000006864 oxidative decomposition reaction Methods 0.000 description 1
- 239000000825 pharmaceutical preparation Substances 0.000 description 1
- 229940127557 pharmaceutical product Drugs 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
- 210000001835 viscera Anatomy 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Catalysts (AREA)
Abstract
Description
Claims (17)
- 톨루엔, 질산 및 혼합산 성분을 반응기에 공급하는 단계, 및 등온 반응 조건하에 톨루엔을 질산 및 혼합산 성분과 반응시키는 단계를 포함하고, 상기 혼합산 성분은 황산 45 내지 80%, 인산 9 내지 45% 및 물 5 내지 15%를 포함하는 것인 모노니트로톨루엔의 연속 제조 방법.
- 제1항에 있어서, 반응기에 공급되는 질산이 60 내지 70% 농도인 것인 방법.
- 제1항에 있어서, 반응기가 반응기 출구를 구비하고, 이 반응기 출구에서 조(crude) 니트로톨루엔이 액-액 상분리에 의해 폐산으로부터 분리되는 방법.
- 제3항에 있어서, 폐산을 단일 단계 농축시켜 황산 45 내지 80%, 인산 9 내지 45% 및 물 5 내지 15%를 포함하는 농축 폐산 조성물을 형성하는 방법.
- 제4항에 있어서, 농축 폐산을 질화 반응 단계로 재순환시키는 것인 방법.
- 제1항에 있어서,(i) 60 내지 70% 농도의 질산과 톨루엔을 반응기에 공급하는 단계,(ii) 조 니트로톨루엔을 반응기 출구에서 폐산으로부터 분리하는 단계,(iii) 폐산을 단일 단계 농축에 의해 황산 45 내지 80%, 인산 9 내지 45% 및 물 5 내지 15%를 포함하는 농축 폐산 조성물로 농축시키는 단계, 및(iv) 농축 폐산을 반응기로 재순환시켜 질화 반응시키는 단계를 포함하는 방법.
- 제1항에 있어서, 상기 혼합산 성분이 황산 64 내지 78%, 인산 10 내지 27% 및 물 8 내지 3%를 포함하는 것인 방법.
- 삭제
- 제1항에 있어서, 상기 질산이 65 내지 68% 농도인 방법.
- 제1항에 있어서, 상기 톨루엔이 질산 1 당량을 기준으로 하여 0.98 내지 1.1 당량의 양으로 존재하는 것인 방법.
- 제1항에 있어서, 상기 톨루엔이 질산 1 당량을 기준으로 하여 1.01 내지 1.05 당량의 양으로 사용되는 것인 방법.
- 제1항에 있어서, 반응기가 반응기 출구를 구비하고, 반응기 출구에서의 폐산은 황산 54 내지 67%, 인산 7 내지 22% 및 물 18 내지 27%를 함유하는 조성물인 방법.
- 제1항에 있어서,(i) 조 니트로톨루엔을 반응기 출구에서 폐산으로부터 분리하는 단계, 및(ii) 폐산을 단일 단계 농축에 의해 30 내지 300 mbar의 압력 및 100 내지 200 ℃의 온도의 증발기에서 농축 폐산 조성물로 농축시키는 단계를 포함하는 방법.
- 제13항에 있어서, 상기 농축이 캐스케이드형(cascade-type) 증발기에서 수행되는 방법.
- 제14항에 있어서, 스트립핑 구획이 있는 증발기를 운전하는 방법.
- 제1항에 있어서, 반응 온도 범위가 20 내지 80 ℃인 방법.
- 제1항에 있어서, 2,000 ppm 이하의 물유리가 반응기에 첨가되는 방법.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10117207A DE10117207C1 (de) | 2001-04-06 | 2001-04-06 | Kontinuierliches isothermes Verfahren zur Herstellung von Mononitrotoluolen in Gegenwart von Phosphorsäure |
DE10117207.9 | 2001-04-06 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20020079480A KR20020079480A (ko) | 2002-10-19 |
KR100869014B1 true KR100869014B1 (ko) | 2008-11-17 |
Family
ID=7680651
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020020018489A KR100869014B1 (ko) | 2001-04-06 | 2002-04-04 | 인산의 존재하에 모노니트로톨루엔의 연속 등온 제조 방법 |
Country Status (12)
Country | Link |
---|---|
US (1) | US6768032B2 (ko) |
EP (1) | EP1247798B1 (ko) |
JP (1) | JP4257893B2 (ko) |
KR (1) | KR100869014B1 (ko) |
CN (1) | CN1219745C (ko) |
AT (1) | ATE268321T1 (ko) |
CA (1) | CA2380159A1 (ko) |
CZ (1) | CZ20021182A3 (ko) |
DE (2) | DE10117207C1 (ko) |
HK (1) | HK1051180A1 (ko) |
PL (1) | PL205526B1 (ko) |
RU (1) | RU2293722C9 (ko) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2692280C (en) * | 2007-06-27 | 2012-12-11 | H R D Corporation | System and process for production of nitrobenzene |
CN101475485B (zh) * | 2009-01-16 | 2011-11-16 | 淮阴师范学院 | 应用超声波技术提高对硝基甲苯收率的方法 |
CN101786966A (zh) * | 2010-03-18 | 2010-07-28 | 淮阴师范学院 | 对硝基苯乙腈的制备新技术 |
CN105541901B (zh) * | 2015-12-21 | 2018-08-28 | 合肥星宇化学有限责任公司 | 一种2,4-二氯-5-硝基苯基磷酸三酯的制备方法 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0156199A1 (de) * | 1984-03-16 | 1985-10-02 | Bayer Ag | Verfahren zur Herstellung von Nitrobenzol |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE305862B (ko) | 1966-10-20 | 1968-11-11 | Bofors Ab | |
US5275701A (en) * | 1993-03-15 | 1994-01-04 | Air Products And Chemicals, Inc. | Process for purification and concentration of sulfuric acid |
DE19539205A1 (de) * | 1995-10-22 | 1997-04-24 | Meissner Gmbh & Co Kg Josef | Verfahren zur Aromatennitrierung |
DE10055359C1 (de) | 2000-11-08 | 2002-03-28 | Bayer Ag | Kontinuierliches isothermes Verfahren zur Herstellung von Mononitrotoluolen |
-
2001
- 2001-04-06 DE DE10117207A patent/DE10117207C1/de not_active Expired - Fee Related
-
2002
- 2002-03-25 EP EP02006614A patent/EP1247798B1/de not_active Expired - Lifetime
- 2002-03-25 DE DE50200489T patent/DE50200489D1/de not_active Expired - Lifetime
- 2002-03-25 AT AT02006614T patent/ATE268321T1/de not_active IP Right Cessation
- 2002-04-02 US US10/114,288 patent/US6768032B2/en not_active Expired - Fee Related
- 2002-04-03 CA CA002380159A patent/CA2380159A1/en not_active Abandoned
- 2002-04-03 JP JP2002101189A patent/JP4257893B2/ja not_active Expired - Fee Related
- 2002-04-04 CZ CZ20021182A patent/CZ20021182A3/cs unknown
- 2002-04-04 PL PL353194A patent/PL205526B1/pl not_active IP Right Cessation
- 2002-04-04 KR KR1020020018489A patent/KR100869014B1/ko not_active IP Right Cessation
- 2002-04-05 RU RU2002108673/04A patent/RU2293722C9/ru not_active IP Right Cessation
- 2002-04-05 CN CNB021054657A patent/CN1219745C/zh not_active Expired - Fee Related
-
2003
- 2003-05-15 HK HK03103447A patent/HK1051180A1/xx not_active IP Right Cessation
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0156199A1 (de) * | 1984-03-16 | 1985-10-02 | Bayer Ag | Verfahren zur Herstellung von Nitrobenzol |
Also Published As
Publication number | Publication date |
---|---|
PL353194A1 (en) | 2002-10-07 |
HK1051180A1 (en) | 2003-07-25 |
DE50200489D1 (de) | 2004-07-08 |
EP1247798B1 (de) | 2004-06-02 |
JP2002338529A (ja) | 2002-11-27 |
PL205526B1 (pl) | 2010-04-30 |
RU2293722C9 (ru) | 2008-04-10 |
US6768032B2 (en) | 2004-07-27 |
US20020147372A1 (en) | 2002-10-10 |
ATE268321T1 (de) | 2004-06-15 |
CA2380159A1 (en) | 2002-10-06 |
CZ20021182A3 (cs) | 2002-11-13 |
DE10117207C1 (de) | 2002-11-14 |
CN1380283A (zh) | 2002-11-20 |
JP4257893B2 (ja) | 2009-04-22 |
EP1247798A1 (de) | 2002-10-09 |
CN1219745C (zh) | 2005-09-21 |
RU2293722C2 (ru) | 2007-02-20 |
KR20020079480A (ko) | 2002-10-19 |
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