Synthesis of composite functional super high cross-linked adsorbing resin containing sulfo radical

A composite function, adsorption resin technology, applied in chemical instruments and methods, other chemical processes, etc., can solve the problems of low specific surface area, poor adsorption performance of organic matter, and no synthetic method of ultra-high cross-linked adsorption resin. The effect of the application foreground
CN1772774AInactive Publication Date: 2006-05-17NANJING UNIV +1
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
NANJING UNIV
Publication Date
2006-05-17
Estimated Expiration
Not applicable · inactive patent
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Abstract

The present invention discloses the synthesis of composite functional super high cross-linked adsorbing resin containing sulfo radical. The synthesis process of the present invention adopts styrene as monomer, divinyl benzene as cross-liking agent, liquid paraffin and other material as pore creating agent, magnesium sulfate and other material as dispersant, benzoyl peroxide as initiator, nitrobenzene and dichloro ethane or chloroben as sweller, and zinc chloride, ferric trichloride or tin tetrachloride and Lewis acid as catalyst, and prepares composite functional resin through preparing chloromethylated low cross-linked polystyrene resin, post-crosslinking reaction to obtain composite functional resin precursor of different crosslinking degree and final sulfonating with high concentration sulfuric acid to obtain composite functional resin with different specific surface area and different exchange capacity. The resin product has both adsorption and ion exchange function and thus wide application range.
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Description

1. Technical field

[0001] The invention relates to a method for synthesizing an ultra-high cross-linking adsorption resin, in particular to a preparation method for an ultra-high cross-linking adsorption resin with composite functions containing sulfonic acid groups. 2. Background technology

[0002] The super high cross-linked adsorption resin containing sulfonic acid groups with composite functions of adsorption and ion exchange has the following mechanism: on the one hand, ion exchange (or Electrostatic interaction); on the other hand, hydrophobic adsorption is performed between the hydrophobicity of the resin itself and the hydrophobic part of the organic matter. Therefore, it can be effectively used in drug extraction, removal of complex pollutants (metal ions and organic pollutants) in micro-polluted water source water, and adsorption and separation fields such as wastewater treatment. The macroporous or gel-type cation exchange resins containing sulfonic acid groups ...

Claims

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