EPOXIDATION PROCESS Russian patent published in 2018 - IPC C07D301/10 C07D303/04 B01J23/50 

Abstract RU 2653534 C2

FIELD: biochemistry.

SUBSTANCE: invention relates to a method for reducing the amount of impurities in an ethylene glycol solution obtained by oxidizing ethylene during preparation of ethylene oxide. Method includes passing an aqueous stream through a guard bed and one or more ion exchange treatment beds, wherein said guard bed and said aqueous stream contain from about 0.2 to 20 wt % ethylene glycol, and wherein said guard bed contains a cross-linked polystyrene resin, partially functionalised with quaternary ammonium functional groups, and said resin has a surface area greater than 400 m2/g. Invention also relates to a process for oxidation of ethylene.

EFFECT: proposed method makes it possible to protect ion exchange resins from damage by elution-resistant impurities.

18 cl, 2 ex, 1 tbl

Similar patents RU2653534C2

Title Year Author Number
EPOXIDATION METHOD 2017
  • Mcgovern, Shaun
  • Husain, Mansoor
  • Sullivan, John
RU2742302C2
METHOD FOR PRODUCTION OF ETHYLENE CARBONATE AND ETHYLENE GLYCOL, USING PROTECTIVE LAYER SYSTEM FOR REMOVAL OF ALKYL IODIDE 2018
  • Bastings, Roel, Guillaume, Hubertus, Leonardus
  • Black, Jesse, Raymond
  • Bojovic, Vesna
  • Evans, Wayne, Errol
RU2786448C2
METHOD AND SYSTEM FOR REMOVAL OF IODIDE IMPURITIES FROM A STREAM OF RECYCLE GAS IN PRODUCTION OF ETHYLENE OXIDE 2016
  • Black, Jesse, Raymond
  • Evans, Wayne, Errol
  • Lemanski, Michael, Francis
RU2733849C2
RATIONAL USE OF HEAT ENERGY IN THE PROCESS OF PRODUCING ETHYLENE CARBONATE AND ETHYLENE GLYCOL 2018
  • Bastings, Rul, Gijom, Khubertus, Leonardus
  • Bojovich, Vesna
  • Molina, Aleksandr
RU2769509C2
METHOD AND SYSTEM FOR REMOVING IODOUS VINYL IMPURITIES FROM RECYCLE GAS STREAM IN PRODUCTION OF ETHYLENE OXIDE 2016
  • Evans, Wayne, Errol
  • Lemanski, Michael, Francis
RU2732397C2
METHOD FOR PRODUCTION OF ETHYLENE CARBONATE AND ETHYLENE GLYCOL 2018
  • Bastings, Roel, Guillaume, Hubertus, Leonardus
  • Black, Jesse, Raymond
  • Bojovic, Vesna
  • Evans, Wayne, Errol
  • Ward, Gregory, John
RU2786054C2
METHODS AND SYSTEMS FOR REMOVING ALKYL IODIDE IMPURITIES FROM RETURN GAS STREAM WHEN PRODUCING ETHYLENE OXIDE 2016
  • Black, Jesse, Raymond
  • Evans, Wayne, Errol
RU2721603C2
METHOD FOR IMPROVING ETHYLENE GLYCOL PRODUCTION 2019
  • Yamada, Eunice
  • Billig, Barry Jay
  • Mcgovern, Shaun
RU2796341C2
RECYCLING METHOD FOR OBTAINING ETHYLENE GLYCOL 2019
  • Chan, Chun Chau
  • Yamada, Eunice
  • Billig, Barry Jay
  • Mcgovern, Shaun
RU2796340C2
METHOD FOR OBTAINING ETHYLENE GLYCOL 2019
  • Chan, Chun Chau
  • Yamada, Eunice
  • Billig, Barry Jay
  • Mcgovern, Shaun
RU2795004C2

RU 2 653 534 C2

Authors

Khusejn Mansur

Dates

2018-05-11Published

2014-04-14Filed