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1. (WO2018145295) METHOD OF CLEANING RESINS

Pub. No.:    WO/2018/145295    International Application No.:    PCT/CN2017/073210
Publication Date: Fri Aug 17 01:59:59 CEST 2018 International Filing Date: Sat Feb 11 00:59:59 CET 2017
IPC: B01J 20/285
B01J 20/26
B01J 38/66
B01J 20/34
B01J 49/00
Applicants: DOW GLOBAL TECHNOLOGIES LLC
COSTEUX, Chunxia
YANG, Liu
ZU, Chengli
Inventors: COSTEUX, Chunxia
YANG, Liu
ZU, Chengli
Title: METHOD OF CLEANING RESINS
Abstract:
Provided is a method of cleaning a collection of resin beads, wherein the method comprises bringing the collection of resin beads into contact with an aqueous solution, wherein the aqueous solution comprises one or more dissolved amine compounds, wherein the collection of resin beads comprises polymer that comprises attached carboxylic acid groups or sulfonic acid groups or a mixture thereof.