Scavengers for the removal of impurities from inert fluids

Details Scavengers for the removal of impurities from inert fluids Scavengers for the removal of impurities from inert fluids

C - Chemistry, Metallurgy

08

F

260/758, 402/7.3

C08F 8/42 (2006.01)

Patent

CA 1266741

Abstract of the Disclosure A polymeric scavenger having a macroreticulate polymer backbone, optionally macroreticulate poly(styrene-divinylben- zene) having pendant metallated aromatic functional groups of general formula: Image where Ar is an aromatic hydrocarbon radical containing from one to three rings; R1 and R2 are independently hydrogen, alkyl hydrocarbon radicals containing from 1 to 13 carbon atoms, methylene-bridged benzophenone radicals, alkali or alkaline earth metal salts of methylene-bridged benzophenone, methylene- bridged fluorenone radicals, or alkali or alkaline earth metal salts of methylene-bridged fluorenone; and M is lithium, potassium, sodium, alkyl magnesium, or alkyl zinc, where the alkyl groups are alkyl hydrocarbon radicals containing from 1 to 12 carbon atoms. The scavengers have improved performance for removing oxidants and Lewis acids from inert fluids. Processes for manufacturing the scavengers and using them are also disclosed.

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