Patenton — panteon of patents

(19)

RU

(11)

2 145 591

(13)

C1

(51)

IPC

(21) (22)

Application

99101927/04, 1999-02-02

(24)

Start date

1999-02-02

(22)

Actual filing date

1999-02-02

(45)

Published

2000-02-20

(72)

Inventor

Safin D.Kh.Ashikhmin G.P.Gajfutdinov G.Sh.Makarov G.M.Il'Jasov G.L.

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo

METHOD OF RECOVERING MONOETHYLENE GLYCOL Russian patent published in 2000 - IPC

Abstract RU 2145591 C1

FIELD: chemical industry. SUBSTANCE: described is method of recovering monoethylene glycol from aqueous solutions thereof formed as by-product in ethylene oxide production by vacuum evaporation, treatment of the resulting concentrated monoethylene glycol solution with alkaline agent to pH values of 8-12 followed by drying and rectification of the desired product. Antifoaming agent is introduced in amount of 0.0001-0.01 wt %. Antifoaming agent includes polyalkyloyloxane liquid and/or oleic alcohol. EFFECT: improved quality of monoethylene glycol being recovered and reduced losses thereof. 2 cl, 1 dwg, 11 ex, 1 tbl

Similar patents RU2145591C1

Title Year Author Number
FIBER-PURITY MONOETHYLENE GLYCOL PRODUCTION PROCESS 2000
  • Safin D.Kh.
  • Gajfutdinov G.Sh.
  • Il'Jasov G.L.
  • Makarov G.M.
  • Ashikhmin G.P.
  • Chebareva A.I.
  • Mitaev R.R.
 RU2186053C2
METHOD OF COMBINED PREPARATION OF MONO-AND DIETHYLENE GLYCOLS 1999
  • Safin D.Kh.
  • Gajfutdinov G.Sh.
  • Ashikhmin G.P.
  • Krasnov V.N.
  • Makarov G.M.
  • Chebareva A.I.
  • Il'Jasov G.L.
  • Kuznetsov V.V.
 RU2152922C1
METHOD OF RECOVERING MONO-AND DIETHYLENE GLYCOLS FROM STILLAGE RESIDUE RESULTING FROM PROCESS OF RECOVERY OF MONOETHYLENE GLYCOL 1996
  • Safin D.Kh.
  • Gajfutdinov G.Sh.
  • Ashikhmin G.P.
  • Makarov G.M.
  • Il'Jasov G.L.
 RU2111949C1
METHOD OF EXTRACTING DIETHYLENE GLYCOL AND TRIETHYLENE GLYCOL 2009
  • Busygin Vladimir Mikhajlovich
  • Makarov Gennadij Mikhajlovich
  • Safin Damir Khasanovich
  • Krasnov Vjacheslav Nikolaevich
  • Sharifullin Rafaehl' Rivkhatovich
  • Gabdulkhakova Nazira Sabirkhanovna
  • Mitaev Ramil' Rakhmatullovich
 RU2420509C1
METHOD OF PRODUCING CONCENTRATED AQUEOUS SOLUTION OF MONOETHYLENE GLYCOL 1998
  • Safin D.Kh.
  • Mustafin Kh.V.
  • Shepelin V.A.
  • Ashikhmin G.P.
  • Gajfutdinov G.Sh.
  • Chebareva A.I.
 RU2137748C1
METHOD OF ISOLATION OF ETHYLENE OXIDE 1998
  • Gazizov Sh.F.
  • Safin D.Kh.
  • Elizarov V.I.
  • Shamsutdinov V.G.
  • Ashikhmin G.P.
  • Krasnov V.N.
  • Garipov Sh.K.
 RU2135488C1
METHOD FOR ISOLATION OF ETHYLENE OXIDE 2002
  • Safin D.Kh.
  • Ashikhmin G.P.
  • Busygin V.M.
  • Makarov G.M.
  • Krasnov V.N.
  • Chebareva A.I.
  • Kuznetsov V.V.
 RU2220963C1
METHOD FOR CLEANING GLYCOLS FROM TRANSITION METAL IMPURITIES 2017
  • Kardash Vladislav Aleksandrovich
  • Lenev Denis Alekseevich
 RU2673669C1
METHOD OF PREPARING (C-C) MONOALKYL ESTERS OF TRI-AND TETRAETHYLENE GLYCOLS 1999
  • Safin D.Kh.
  • Gajfutdinov G.Sh.
  • Mustafin Kh.V.
  • Ashikhmin G.P.
  • Chebareva A.I.
  • Il'Jasov G.L.
  • Makarov G.M.
 RU2159760C1
METHOD OF ISOLATION OF MONO- AND DIETHYLENE GLYCOL BUTYL ETHERS FROM BUTYL ALCOHOL OXYETHYLATION PRODUCTS 1999
  • Gabutdinov M.S.
  • Cherevin V.F.
  • Petrov F.K.
  • Gabov V.A.
  • Evdokimov G.M.
  • Aksanov I.M.
  • Bakhtina I.A.
  • Khristenko M.S.
  • Poljakova L.V.
  • Komarova L.F.
 RU2159224C2

RU 2 145 591 C1

Authors

Safin D.Kh.

Ashikhmin G.P.

Gajfutdinov G.Sh.

Makarov G.M.

Il'Jasov G.L.

Dates

2000-02-20—Published

1999-02-02—Filed

download Download PDF read Similar patents