一种扩散渗析膜的制备方法
By introducing bifunctional functional group compounds and tertiary amines for modification during the preparation of diffusion dialysis membranes, the crosslinking structure and charge properties are optimized, solving the problem of balancing H+ dialysis coefficient and separation factor, and achieving efficient acid recovery.
Patent Information
- Application Number
- CN202512006156.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-29
- Publication Date
- 2026-07-17
- Estimated Expiration
- 2045-12-29
AI Technical Summary
Existing diffusion dialysis membranes have difficulty simultaneously achieving both H+ dialysis coefficient and separation factor, especially in terms of separation factor, which limits the improvement of acid recovery efficiency and purity.
By introducing bifunctional functional compounds into the preparation process to crosslink with chloromethylated polysulfone and modifying it with tertiary amine solution, and controlling the reaction temperature and time, the crosslinking structure and charge properties are optimized, thereby achieving synergistic regulation of H+ permeability coefficient and separation factor.
A diffusion dialysis membrane with both high separation factor and high H+ dialysis coefficient was prepared, which improved the efficiency and purity of acid recovery.
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Abstract
Citation Information
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