Patenton — panteon of patents

(19)

RU

(11)

2 141 473

(13)

C1

(51)

IPC

(21) (22)

Application

98123077/04, 1998-12-24

(24)

Start date

1998-12-24

(22)

Actual filing date

1998-12-24

(45)

Published

1999-11-20

(72)

Inventor

Jakushkin M.I.Sabylin I.I.Starovojtov M.K.Batrin Ju.D.Kachegin A.F.Fokin N.S.Gajdin L.I.Dontsov V.N.Tikhanovskij V.I.Stepanova Eh.I.Golovachev V.A.Kudrjashova T.Z.

(73)

Holder

Jakushkin Mikhail IvanovichSabylin Igor' IvanovichStarovojtov Mikhail KarpovichBatrin Jurij Dmitrievich

METHOD OF ISOLATION OF ANILINE FROM NITROBENZENE HYDROGENATION PRODUCT Russian patent published in 1999 - IPC

Abstract RU 2141473 C1

FIELD: chemical technology. SUBSTANCE: invention proposes a method of isolation of aniline at the content of nitrobenzene 0.0005 wt.-%, not above, from catalysates containing up to 0.5 wt.-% of nitrobenzene by rectification using phenylenediamines, diphenylamine, aminophenols as the separation promoter (separating agent). Rectification of dehydrated crude aniline is carried out at the residual pressure at the top of column 20-50 mm mercury column, at temperature in the column vat 95-145 C and the end trade product is obtained by the top of column. EFFECT: increased yield and purity of the end product. 10 ex

Similar patents RU2141473C1

Title Year Author Number
N-METHYLANILINE ISOLATION PROCESS 2000
  • Starovojtov M.K.
  • Batrin Ju.D.
  • Jakushkin M.I.
  • Sabylin I.I.
  • Kachegin A.F.
  • Fokin N.S.
  • Bondarenko Ju.V.
  • Kudrjashova T.Z.
 RU2167851C1
ANILINE PRODUCTION PROCESS 1998
  • Jakushkin M.I.
  • Starovojtov M.K.
  • Batrin Ju.D.
  • Golovachev V.A.
  • Kachegin A.F.
  • Fokin N.S.
  • Gajdin L.I.
  • Dontsov V.N.
  • Tikhanovskij V.I.
  • Vodolazhskij S.V.
  • Kudrjashova T.Z.
  • Sveshnikova A.M.
  • Golosman E.Z.
 RU2136654C1
METHOD OF SYNTHESIS OF ANILINE 1998
  • Jakushkin M.I.
  • Starovojtov M.K.
  • Batrin Ju.D.
  • Golovachev V.A.
  • Kachegin A.F.
  • Fokin N.S.
  • Gajdin L.I.
  • Dontsov V.N.
  • Vodolazhskij S.V.
  • Kudrjashova T.Z.
  • Sveshnikova A.M.
  • Tikhanovskij V.I.
  • Kalinovskij A.I.
 RU2135461C1
2-ETHYLHEXANAL PRODUCTION PROCESS 2004
  • Khvorov Aleksandr Petrovich
  • Sabylin Igor' Ivanovich
 RU2272804C1
METHOD FOR PREPARING 2-ETHYLHEXANOL 2006
  • Khvorov Aleksandr Petrovich
  • Sabylin Igor' Ivanovich
 RU2312850C1
COMBINED SYNTHESIS OF ANILINE AND N-METHYLANILINE 1997
  • Batrin Ju.D.
  • Nikolaev Ju.T.
  • Beljakov N.G.
  • Jakushkin M.I.
  • Golovachev V.A.
  • Starovojtov M.K.
  • Trofimchenko S.M.
  • Fokin N.S.
  • Kosmynina G.V.
  • Gajdin L.I.
 RU2135460C1
BATCH AND CONTINUOUS PROCESS FOR ISOLATION OF DIKETENE FROM KETENE DIMERIZATION PRODUCT 2002
  • Kobzev Ju.P.
  • Mitin N.A.
  • Utrobin N.P.
  • Sabylin I.I.
  • Sokolov B.G.
 RU2214993C1
METHOD FOR PREPARING N-METHYLANILINE 2003
  • Batrin Ju.D.
  • Starovojtov M.K.
  • Popov Ju.V.
  • Novakov I.A.
  • Latyshova S.E.
  • Belousov E.K.
  • Shishkin E.V.
 RU2223258C1
METHOD FOR PREPARING 2-ETHYLHEXANOIC ACID 2004
  • Khvorov A.P.
  • Sabylin I.I.
 RU2256646C1
BUTYL ALCOHOLS PRODUCTION PROCESS 2004
  • Rogov M.N.
  • Rakhimov Kh.Kh.
  • Elin O.L.
  • Ishmijarov M.Kh.
  • Ferljudin Ju.P.
  • Zhiljaev N.P.
  • Koshelev Ju.A.
  • Metel'Skij V.M.
  • Kutsenko N.A.
  • Stepantsov V.I.
  • Khvorov A.P.
  • Sabylin I.I.
  • Khvorova E.P.
 RU2259345C1

RU 2 141 473 C1

Authors

Jakushkin M.I.

Sabylin I.I.

Starovojtov M.K.

Batrin Ju.D.

Kachegin A.F.

Fokin N.S.

Gajdin L.I.

Dontsov V.N.

Tikhanovskij V.I.

Stepanova Eh.I.

Golovachev V.A.

Kudrjashova T.Z.

Dates

1999-11-20—Published

1998-12-24—Filed

read Similar patents