FIELD: chemistry.
SUBSTANCE: according to the invention, a base is further added to one or more positions downstream the heat-removal section of an ethylene oxide absorber to main pH in the range of 5.5-9.5, in at least one region, where glycolic esters are hydrolysed to an organic acid and ethylene glycol.
EFFECT: reduced corrosion of an ethylene oxide or ethylene glycol producing apparatus.
10 cl, 4 dwg
Title | Year | Author | Number |
---|---|---|---|
METHOD FOR OBTAINING ETHYLENEGLYCOL | 2011 |
|
RU2579368C2 |
METHOD OF PRODUCING ETHYLENE GLYCOL | 2012 |
|
RU2599828C2 |
METHOD OF PRODUCING ALKYLENE GLYCOL | 2008 |
|
RU2477718C2 |
METHOD FOR OBTAINING ALKYLENE GLYCOL | 2011 |
|
RU2574856C2 |
IMPROVED METHOD OF ETHYLENE OXIDE EXTRACTION | 2009 |
|
RU2525237C2 |
METHODS FOR PRODUCTION OF ETHYLENE OXIDE AND ETHYLENE GLYCOL | 2018 |
|
RU2785430C2 |
RATIONAL USE OF HEAT ENERGY IN THE PROCESS OF PRODUCING ETHYLENE CARBONATE AND ETHYLENE GLYCOL | 2018 |
|
RU2769509C2 |
METHOD OF MONOETHYLENE GLYCOL REGENERATION | 2009 |
|
RU2511442C2 |
METHOD FOR PRODUCTION OF ETHYLENE CARBONATE AND ETHYLENE GLYCOL | 2018 |
|
RU2786054C2 |
EPOXIDATION PROCESS | 2014 |
|
RU2653534C2 |
Authors
Dates
2012-09-27—Published
2008-01-22—Filed