Synthesis method of adsorbent for removing fluorine in high salt

A synthesis method and adsorbent technology, which is applied in the field of fluorine removal adsorbent synthesis in high salt, can solve the problems of low fluorine removal efficiency, secondary pollution, high operation and maintenance costs, etc., and achieve high fluoride removal capacity and affinity, Efficient defluorination and low cost effects
CN114082407APending Publication Date: 2022-02-25JIANGSU HELPER FUNCTIONAL MATERIALS
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
JIANGSU HELPER FUNCTIONAL MATERIALS
Publication Date
2022-02-25

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Abstract

The invention relates to a synthesis method of an adsorbent for removing fluorine in high salt, and belongs to the technical field of separation of fluorine-containing wastewater. The synthesis method of the adsorbent comprises the following steps: (1) swelling chloromethylated resin in an organic solvent, respectively adding an alkali and a quinoline amide derivative, stirring and reacting to obtain a mixture containing resin, and carrying out solid-liquid separation to take a solid phase which is modified chloromethylated bead resin 1; (2) adding a quinoline derivative and the organic solvent into the modified chloromethylated bead resin 1 in the step (1), stirring and mixing, and carrying out heating reflux reaction to obtain chloromethylated bead modified resin 2; and (3) adding a nitrate solution into the chloromethylated bead modified resin 2 obtained in the step (2), and reacting to obtain the defluorination adsorbent after the reaction is finished. The prepared modified defluorination material is simple in preparation process, low in cost, easy to recycle and high in defluorination efficiency in wastewater.
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Description

technical field

[0001] The invention belongs to the technical field of separation of fluorine-containing wastewater, in particular to a method for synthesizing an adsorbent for removing fluoride in high-salt water. Background technique

[0002] In recent years, the improvement of environmental protection treatment capacity of fluorine chemical enterprises is the only way to enhance market competitiveness. The global market demand for fluorine-containing chemicals has grown rapidly, and the number of chemical and pharmaceutical companies has increased sharply, producing a large number of fluorine-containing products such as fluorine-containing electronic chemicals, fluorine-containing fine chemicals, fluorine-containing polymers, and fluorine-containing coatings. It is a large amount of fluorine-containing wastewater, and the treatment of fluorine-containing high-salt wastewater in the fluorine chemical industry is still a difficult point in this industry. Industrial high-sa...

Claims

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