JPS6249259B2 - - Google Patents

Info

Publication number
JPS6249259B2
JPS6249259B2 JP4638980A JP4638980A JPS6249259B2 JP S6249259 B2 JPS6249259 B2 JP S6249259B2 JP 4638980 A JP4638980 A JP 4638980A JP 4638980 A JP4638980 A JP 4638980A JP S6249259 B2 JPS6249259 B2 JP S6249259B2
Authority
JP
Japan
Prior art keywords
dinitrotoluene
isomers
water
isomer
crude 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
Application number
JP4638980A
Other languages
English (en)
Japanese (ja)
Other versions
JPS56142245A (en
Inventor
Tsutomu Takeuchi
Mineo Nishi
Kyotaka Ito
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Chemical Corp
Original Assignee
Mitsubishi Chemical Industries Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Chemical Industries Ltd filed Critical Mitsubishi Chemical Industries Ltd
Priority to JP4638980A priority Critical patent/JPS56142245A/ja
Publication of JPS56142245A publication Critical patent/JPS56142245A/ja
Publication of JPS6249259B2 publication Critical patent/JPS6249259B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
JP4638980A 1980-04-09 1980-04-09 Purification of crude dinitrotoluene Granted JPS56142245A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4638980A JPS56142245A (en) 1980-04-09 1980-04-09 Purification of crude dinitrotoluene

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4638980A JPS56142245A (en) 1980-04-09 1980-04-09 Purification of crude dinitrotoluene

Publications (2)

Publication Number Publication Date
JPS56142245A JPS56142245A (en) 1981-11-06
JPS6249259B2 true JPS6249259B2 (enrdf_load_stackoverflow) 1987-10-19

Family

ID=12745782

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4638980A Granted JPS56142245A (en) 1980-04-09 1980-04-09 Purification of crude dinitrotoluene

Country Status (1)

Country Link
JP (1) JPS56142245A (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19512114C2 (de) * 1995-04-04 2000-04-27 Meissner Gmbh & Co Kg Josef Rückgewinnung von Salpetersäure aus Nitrierprozessen

Also Published As

Publication number Publication date
JPS56142245A (en) 1981-11-06

Similar Documents

Publication Publication Date Title
US4496782A (en) Nitric acid recovery by the adiabatic nitration of nitroaromatics with fortified spent acid
EP0002308B1 (en) Catalytic hydrogenation process for the manufacture of aromatic amines
US4482769A (en) Reducing 2,4-dinitroortho-cresol in effluent stream from dinitrotoluene process
EP1062198B1 (en) Process for nitration of aromatic compounds using a non-acid type nitration process
EP0171052B1 (en) Conitration of mixed aromatic hydrocarbons
JPH07309814A (ja) ジニトロトルエンの製造方法
EP0066202B1 (en) High purity 2,4-dinitrotoluene from toluene nitration process
US4361712A (en) Cyanide reduction in nitroaromatic process
US5395995A (en) Process for the preparation and purification of nitroaromatics
US6254789B1 (en) Method for treating aqueous solutions comprising acids and nitrated compounds
JPS6249259B2 (enrdf_load_stackoverflow)
US4241229A (en) Recovery of nitrated aromatic compounds from nitration wash liquors
JPH06504530A (ja) ジニトロトルエンの製造方法
JP4571945B2 (ja) モノニトロトルエン製造の廃水からのニトロクレゾールの除去方法及びこの抽出物の更なる使用方法
JPH03204841A (ja) アニリンとm―フェニレンジアミン、芳香族モノアミンと芳香族ジアミンの協同生産の連続2段法
JPH0217533B2 (enrdf_load_stackoverflow)
US2430421A (en) Process for the purification of mononitro aromatic compounds
US5990354A (en) Conversion of ammonium picrate to m-phenylenediamine, aniline, and primary amines
JP3170278B2 (ja) 溶融硝酸塩を使用してニトロ置換芳香族から酸を分離する方法
US3742072A (en) Nitration of toluene and nitrotoluenes to form tnt
US3931347A (en) Purification of dinitrotoluene
US3134813A (en) Purification of tolylenediamine
US5405999A (en) Process for preparing ethalfluralin
US2401879A (en) Purification of crude trinitrotoluene
JPH0138098B2 (enrdf_load_stackoverflow)