METHOD OF SYNTHESIS OF MONONITROTOLUENES Russian patent published in 1998 - IPC

Abstract RU 2119909 C1

FIELD: chemistry of plastics, chemical technology. SUBSTANCE: method of synthesis of mononitrotoluenes involves interaction of toluene with nitrating agent consisting of sulfuric acid, nitric acid and water and the following adiabatic reaction, separation of the obtained reaction mixture for an organic and inorganic phases and processing the obtained inorganic phase by distillation. Mixing is carried out for 3 s at energy feeding 1-40 Wt/l of the total reaction mixture. Method can be used for production of plastics, dyes and accessory materials. EFFECT: improved method of synthesis, increased selectivity of synthesis of mononitrotoluenes. 9 cl, 1 tbl, 7 ex

Similar patents RU2119909C1

Title Year Author Number
METHOD FOR ISOTHERMIC NITRATION OF ORGANIC AROMATIC COMPOUNDS 2006
  • Mjunnig Jurgen
  • Pennemann Bernd
  • Vastian Ditmar
  • Mikhele Fol'Ker
  • Karavadzhio Dzhessi
  • Gish Dzhon F.
RU2418783C2
METHOD FOR CONTINUOUS PREPARING MONONITROTOLUENES 2001
  • Demut Ral'F
  • Debert Frank
  • Petersen Kharal'D
  • Ronge Georg
  • Veber Khans-Martin
  • Vjurmingkhauzen Tomas
  • Tsirngibl' Ehberkhard
RU2274634C2
METHOD OF TWO-STAGE OBTAINING OF DINITROTOLUENE 2004
  • Diterikh Ehrvin
  • Khil'Sher Anke
  • Keggenkhoff Bertol'D
  • Keller-Killeval'D Manfred
  • Mjunnig Jurgen
  • Vastian Ditmar
RU2330836C2
METHOD FOR PRODUCTION OF DINITROTOLUENE 1995
  • Allan B.Kvokenbush[Us]
RU2100347C1
WATER-CONTAINING TOLYLENEDIAMINE USEFUL FOR STORAGE OR TRANSPORTING AS LIQUID, METHOD FOR ITS PREPARING AND METHOD FOR PREPARING TOLYLENE DI- ISOCYANATE 1996
  • Biskup Klaus
  • Keggenkhoff Bertkhol'D
RU2202537C2
METHOD OF CONTINUOUS ISOTHERMAL PRODUCTION OF MONONITROTOLUENES AT PRESENCE OF THE PHOSPHORIC ACID 2002
  • Gotta Matias
  • Demut Ral'F
  • Tsirngibl' Ehberkhard
  • Veber Khans-Martin
  • Ronge Georg
RU2293722C2
METHOD FOR COMBINED SYNTHESIS OF ISOCYANATES AND CHLORINE 2007
  • Dugal Markus
  • Pennemann Bernd
  • Kehmper Fridkhel'M
RU2443682C2
METHOD OF OBTAINING MONONITROTOLUENE WITH INCREASED P-ISOMER CONTENT 2007
  • D'Jakov Mikhail Valer'Evich
  • Zbarskij Vitol'D L'Vovich
  • Kozlov Aleksandr Ivanovich
RU2346930C1
METHOD OF SEPARATION OF ACID IMPURITY FROM SOLUTION AND METHOD OF SEPARATION OF NITRIC ACID FROM SOLUTION 1991
  • Allen B. Kvehkenbush[Us]
RU2061671C1
METHOD OF EXTRACTING 4-NITROTOLUENE 2014
  • Vlasov Oleg Mikhajlovich
  • Pljaskin Oleg Jur'Evich
  • Solov'Ev Sergej Aleksandrovich
  • Kadulin Vladimir Viktorovich
  • Zhamilova Zitta Andreevna
RU2560882C1

RU 2 119 909 C1

Authors

Bernd-Mikhaehl' Kenig

Khel'Mut Judat

Khejnts Ul'Rikh Blank

Dates

1998-10-10Published

1995-02-13Filed