Impregnating resin with ionic liquid film containing extractive agent on surface, producing method and application thereof

A technique for impregnating resins and ionic liquids, applied in solvent extraction, separation methods, chemical instruments and methods, etc., can solve the problems of unsuitable ionic liquid-based extraction process, high viscosity of imidazole-based ionic liquids, entrainment and loss of ionic liquids, etc., to achieve Improve the separation effect, increase the extraction capacity, and reduce the cost
CN101274154AInactive Publication Date: 2008-10-01CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
Publication Date
2008-10-01
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a dipping resin with the surface covered by an ionic liquid film containing extractant, and a fabrication method as well as application thereof. The ionic liquid containing the extractant is fixed in adsorption resin XAD-7; acid or alcohol or heat is not required to be added by using a direct dipping method, the stability of the ionic liquid is hardly affected, and the loading of ionic liquid matrix system in the material is large. Solid-liquid extraction is carried out by using the dipping resin, therefore, the contact area of ion liquid phase and water phase can be effectively increased, the mass transfer efficiency of the system can be improved, clamp strap loss of the ionic liquid can be reduced, and the phenomena of emulsion, phase splitting, etc. in the extraction process can be improved. In an extraction restriction complexation method, complexation agent is added in the water phase, and the extraction efficiency of the ionic liquid phase on the target metallic ions and selection among different metallic ions are improved by the difference of stability constants between the complexation agent and the metallic ions, thus effectively avoiding the phenomena of extraction efficiency reduction and ionic liquid decomposition in the separation process by adjusting the pH value. The two methods can be combined to be applied to imetallic ion separation with excellent separation effect.
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Description

Technical field

[0001] The invention relates to an impregnating resin (IL-SIR) whose surface is covered by an ionic liquid film containing an extractant, and a preparation method and application thereof. technical background

[0002] Ionic liquid (IL) refers to an organic ionic compound that is liquid at room temperature or close to room temperature and consists of both anions and cations. Ionic liquid-based extraction refers to the application of IL as a diluent to the extraction phase, and it is an emerging green separation technology. At present, in the research of ionic liquid-based system for extracting metal ions, its green and high-efficiency characteristics have attracted people's attention. As a new type of green solvent, ionic liquid has a series of characteristics different from traditional volatile organic solvents, such as wide liquid temperature range, strong solubility, almost no measurable vapor pressure, high stability, and good conductivity. Due to its non-volat...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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