Method of pretreating ion-exchange resin for removal of aldehyde impurities

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United States of America Patent

PATENT NO 11708315
APP PUB NO 20230106288A1
SERIAL NO

17914677

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Abstract

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Method for lowering aldehyde content in a mixture comprising (i) diethylene glycol (DEG) and/or triethylene glycol (TEG) and (ii) aldehyde are disclosed. An ion exchange resin is soaked in monoethylene glycol. The mixture comprising 5 to 200 ppm aldehyde is then flowed to make contact with the soaked ion exchange resin to produce a product comprising DEG and/or TEG and less than 15 ppm aldehyde.

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Patent Owner(s)

Patent OwnerAddress
SABIC GLOBAL TECHNOLOGIES B VPLASTICSLAAN 1 BERGEN OP ZOOM 4612 PX

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Al-Dossari, Adel Riyadh, SA 1 0
Duan, Jintang Riyadh, SA 4 9
Gopal, Srikant Riyadh, SA 12 72

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