CA2673052C - Procede pour traiter des flux d'oxyde d'ethylene contenant nox ou des composes organiques d'azote - Google Patents

Procede pour traiter des flux d'oxyde d'ethylene contenant nox ou des composes organiques d'azote Download PDF

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Publication number
CA2673052C
CA2673052C CA2673052A CA2673052A CA2673052C CA 2673052 C CA2673052 C CA 2673052C CA 2673052 A CA2673052 A CA 2673052A CA 2673052 A CA2673052 A CA 2673052A CA 2673052 C CA2673052 C CA 2673052C
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Canada
Prior art keywords
water
reducing agent
bisulfite
sulfite
ethylene oxide
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CA2673052A
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English (en)
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CA2673052A1 (fr
Inventor
John P. Dever
William C. Hoffman
James H. Mccain
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Dow Technology Investments LLC
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Dow Technology Investments LLC
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Publication of CA2673052A1 publication Critical patent/CA2673052A1/fr
Application granted granted Critical
Publication of CA2673052C publication Critical patent/CA2673052C/fr
Active legal-status Critical Current
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
    • C07C29/09—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by hydrolysis
    • C07C29/10—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by hydrolysis of ethers, including cyclic ethers, e.g. oxiranes
    • C07C29/103—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by hydrolysis of ethers, including cyclic ethers, e.g. oxiranes of cyclic ethers
    • C07C29/106—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by hydrolysis of ethers, including cyclic ethers, e.g. oxiranes of cyclic ethers of oxiranes

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Epoxy Compounds (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

L'invention concerne des flux aqueux d'oxyde d'alkylène brut convertis en alkylène glycol correspondant. Un flux d'oxyde d'alkylène brut contient NOx ou des composés organiques d'azote. Une réaction d'hydrolyse est exécutée en présence d'agents de réduction solubles dans l'eau, le type d'agent préféré étant un bisulfite de métal alcalin.
CA2673052A 2006-12-22 2007-12-12 Procede pour traiter des flux d'oxyde d'ethylene contenant nox ou des composes organiques d'azote Active CA2673052C (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US87708006P 2006-12-22 2006-12-22
US60/877,080 2006-12-22
PCT/US2007/025493 WO2008085268A1 (fr) 2006-12-22 2007-12-12 Procédé pour traiter des flux d'oxyde d'éthylène contenant nox ou des composés organiques d'azote

Publications (2)

Publication Number Publication Date
CA2673052A1 CA2673052A1 (fr) 2008-07-17
CA2673052C true CA2673052C (fr) 2015-07-21

Family

ID=39277255

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2673052A Active CA2673052C (fr) 2006-12-22 2007-12-12 Procede pour traiter des flux d'oxyde d'ethylene contenant nox ou des composes organiques d'azote

Country Status (4)

Country Link
CN (1) CN101568505A (fr)
CA (1) CA2673052C (fr)
TW (1) TW200837044A (fr)
WO (1) WO2008085268A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106242945A (zh) 2008-11-10 2016-12-21 陶氏技术投资有限公司 用于生产低色素二醇的方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2086894B (en) * 1980-11-10 1984-06-20 Ici Plc Production of alkylene glycols
CA1330350C (fr) * 1986-10-07 1994-06-21 Thomas Martin Schmitt Methode de purification de l'ethylene glycol
SU1498752A1 (ru) * 1987-06-01 1989-08-07 Предприятие П/Я М-5364 Способ очистки этиленгликол
US5440058A (en) * 1994-06-07 1995-08-08 Union Carbide Chemicals & Plastics Technology Corporation Method for separating compounds in process streams

Also Published As

Publication number Publication date
TW200837044A (en) 2008-09-16
WO2008085268A1 (fr) 2008-07-17
CN101568505A (zh) 2009-10-28
CA2673052A1 (fr) 2008-07-17

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