Process for producing an aminophosphoric acid-type chelate resin
AssigneeMitsubishi Kasei Corporation
InventorsTsuyoshi Ito, Takayuki Tashiro
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Abstract
A process for producing an aminophosphoric acid-type chelate resin, which comprises aminating halomethyl groups of a polymer having the halomethyl groups on aromatic nuclei, followed by phosphomethylation, wherein the amination reaction is conducted by means of an amine mixture comprising a monoamine and a polyamine, wherein the proportion of the monoamine to the total amount of both amines is from 20 to 70% by mole.
Claims12
A process for producing an aminophosphoric acid-type chelate resin, which comprises aminating halomethyl groups of a polymer having the halomethyl groups on aromatic nuclei, followed by phosphomethylation, wherein the amination reaction is conducted by means of an amine mixture comprising a monoamine and a polyamine, wherein the proportion of the monoamine to the total amount of both amines is from 20 to 70% by mole.
Dependencies are inferred from the claim text.