PROCESS FOR PREPARING PHOSPHORILATED CROSSLINKED CHITOSAN CHELATE RESINS

摘要

The present invention disperses high purity chitosan having a particle size in the range of 0.3 to 2.5 mm in diameter and a viscosity of 100 to 900 cps in a basic aqueous solution containing epihalohydrin, followed by stirring for a certain period of time, insoluble crosslinking chitosan. The present invention relates to a method for producing a phosphorylated crosslinked chitosan chelate resin, which comprises obtaining and subsequently dispersing the crosslinked chitosan in methanesulfonic acid.