Macroreticulate polymer scavengers for the removal of impurities from inert fluids

Claim 1

A macroreticulate polymer, useful as a scavenger for Lewis acid and oxidant impurities, comprising a macroreticulate polymer backbone having a plurality of pendant functional groups or mixtures of functional groups where the functional groups correspond to the general formula: ##STR4## where Ar is an aromatic hydrocarbon radical containing from one to three rings; R 1 and R 2 are the same or different and are selected from the group consisting of hydrogen, alkyl hydrocarbon radicals containing from 1 to 12 carbon atoms, methylene-bridged benzophenone radicals, alkali or alkaline earth metal salts of methylene-bridged benzophenone; methylene-bridged fluorenone radicals and alkali or alkaline earth metal salts of methylene-bridged fluorenone; and M is selected from the group consisting of lithium, potassium, sodium, alkyl magnesium, and alkyl zinc where the alkyl groups are hydrocarbon alkyl radicals containing from 1 to 12 carbon atoms, said macroreticulate polymer having within its pores a metallating agent selected from the group consisting of alkyl lithium, alkyl sodium, alkyl potassium, dialkyl magnesium, alkyl magnesium halide and dialkyl zinc, where the alkyl group is an alkyl hydrocarbon radical containing from 1 to 12 carbon atoms; alkali or alkaline earth metal salts of benzophenone and alkali or alkaline earth metal salts of fluorenone, and having an impurity absorption capacity, measured as oxygen, of greater than about eight liters of oxygen per liter of polymer bed.