A kind of imprint resin for gallium ion extraction and its preparation method and application

By forming an ion-imprinted membrane and a dual recognition mechanism on weakly basic anion exchange resin spheres, the problems of low selectivity and short service life of amine oxime chelating resins are solved, achieving efficient and selective extraction of gallium ions and long-term stable use of the resin.

CN122127660APending Publication Date: 2026-06-02ZHENGZHOU NON FERROUS METALS RES INST CO LTD OF CHALCO
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ZHENGZHOU NON FERROUS METALS RES INST CO LTD OF CHALCO
Filing Date
2026-03-20
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing amine oxime chelating resins have low selectivity when extracting gallium, easily adsorb coexisting ions, and have a short service life, especially prone to oxidation and failure under high temperature environments.

Method used

Using Ga(OH)4- as the template ion, an ion-imprinted film is formed on the outer shell and pore surface of a weakly basic anion exchange resin sphere. Combined with the high mechanical strength and chemical stability of the acrylic ion exchange resin sphere, a specific recognition site and a dual recognition mechanism are formed, avoiding swelling or fragmentation of the resin skeleton.

Benefits of technology

It significantly improves the selective adsorption capacity of gallium ions, extends the service life of the resin, enhances the binding capacity of gallium ions, and avoids the adsorption of coexisting ions and damage to the resin structure.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN122127660A_ABST
    Figure CN122127660A_ABST
Patent Text Reader

Abstract

This application relates to the field of resin material preparation technology, and more particularly to an imprinted resin for gallium ion extraction, its preparation method, and its application. The preparation method includes: preparing acrylic ion exchange resin spheres; using an amination reagent to perform a conversion reaction on the acrylic ion exchange resin spheres to obtain weakly basic anion exchange resin spheres; and then reacting them with Ga(OH)4... ‑ In the case of a template ion, weakly basic anion exchange resin spheres are polymerized to obtain crude ion-imprinted resin; the crude ion-imprinted resin is then eluted to obtain ion-imprinted resin. This preparation method, through a dual design of "construction of specific recognition sites + strengthening of matrix structure," solves the problem of selective extraction of gallium ions in complex solutions and ensures the long-term stable use of the resin.
Need to check novelty before this filing date? Find Prior Art