A kind of extraction resin, the method for separating phosphorus tungsten from phosphorus tungsten mixed solution
By using an extraction resin loaded with amine and phosphoric acid extractants, tungsten and phosphorus can be efficiently separated from a phospho-tungsten mixture, solving the problems of low separation efficiency and high equipment requirements in existing technologies, and achieving economical and efficient tungsten recovery.
CN122124757APending Publication Date: 2026-06-02GANZHOU NONFERROUS METALLURGICAL RES INST
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- GANZHOU NONFERROUS METALLURGICAL RES INST
- Filing Date
- 2026-03-13
- Publication Date
- 2026-06-02
AI Technical Summary
Technical Problem
Existing methods have limited separation efficiency, high energy consumption, high production requirements, and strict equipment requirements when processing phosphorus-tungsten mixed solutions, resulting in high tungsten recovery costs.
Method used
Extraction resins simultaneously loaded with amine and phosphoric acid extractants are loaded onto acrylic weakly basic macroporous polymers and styrene-divinylbenzene macroporous polymers through a preparation method to separate tungsten and phosphorus from a phosphotungsten mixture.
Benefits of technology
It achieves efficient separation of phosphorus and tungsten, reduces equipment requirements and reagent usage, improves tungsten purification and enrichment efficiency, and reduces costs.
✦ Generated by Eureka AI based on patent content.
Abstract
This application belongs to the field of hydrometallurgical technology, specifically a method for separating phosphotungsten from a phosphotungsten mixture using an extraction resin. The extraction resin of this application is simultaneously loaded with an amine extractant and a phosphoric acid extractant. The prepared extraction resin is loaded into an adsorption column, allowing it to adsorb the phosphotungsten mixture. Then, an alkaline solution is used to desorb the adsorbed extraction resin, yielding a tungstate-enriched solution. Using the extraction resin of this application, tungsten and phosphorus in a tungsten-phosphorus mixed solution can be effectively separated, achieving tungsten purification and enrichment. No pretreatment is required before adsorption, reducing reagent consumption, resulting in good economic efficiency, environmental friendliness, and low equipment requirements. The adsorbed extraction resin can be reused in the process after simple treatment, reducing costs.
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