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A hydroxylamine type chelating absorption resin and method for preparing the same

A chelation adsorption, polystyrene hydroxylamine-type technology, applied in the field of functional polymers, can solve problems such as the complex structure of chloromethylated resins, and achieve the effects of easy loading, high conversion rate, and definite adsorption resin structure

Inactive Publication Date: 2008-10-22
NANJING TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And there are also many substitutions and secondary crosslinking problems in the chloromethylation reaction (BARRETT J, HEIGHTS C, et al.USP3,812,061,1974), which makes the structure of the chloromethylation resin complicated

Method used

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  • A hydroxylamine type chelating absorption resin and method for preparing the same
  • A hydroxylamine type chelating absorption resin and method for preparing the same

Examples

Experimental program
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Effect test

Embodiment 1

[0017] Take 1g of PS-Ace-Cl resin (crosslinking degree: 7% (v / v) DVB; particle size 200μm) in a round bottom beaker, add 4ml of dioxane, swell for 12h, add 1ml of diethanolamine, stir to disperse Evenly, react at 110°C for 13h under normal pressure. That is, a hydroxylamine-type resin with a supported amount of 0.97meq / g was obtained.

Embodiment 2

[0019] Take 1g of PS-Ace-Cl resin (crosslinking degree: 1% (v / v) DVB; particle size 200μm) in a round bottom beaker, add 4ml of tetrahydrofuran, swell for 15h, add 2ml of dibutanolamine, stir to make it evenly dispersed , Reacted at 40°C for 6h under normal pressure. That is, a hydroxylamine-type resin with a supported amount of 1.15 meq / g was obtained.

Embodiment 3

[0021] Take 1g of PS-Ace-Br resin (crosslinking degree: 1% (v / v) DVB; particle size 200μm) in a round bottom beaker, add 4ml of tetrahydrofuran, swell for 12h, add 1ml of diethanolamine, stir to make it evenly dispersed, React at 110°C for 18h under normal pressure. That is, a hydroxylamine-type resin with a supported amount of 3.19 meq / g was obtained.

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Abstract

The invention discloses a hydroxylamine resin with chelated adsorption ability and relative preparing method. It is characterized in that: said hydroxylamine resin is prepared by the reaction between the halogenated acyl polystyrene and hydroxylamine. And it uses halogenated acyl polystyrene to replace general chloromethyl resin. And it can avoid using noxious compound as chloromethane aether; and solve the problems of easy replacement and complex structure of adsorption resin. The exchange capacity of said invetnoin is 0.1-3.9meq / g dry resin.

Description

technical field [0001] The invention belongs to the field of functional polymers. In particular, it relates to a hydroxylamine resin with chelating adsorption capacity and a preparation method thereof. Background technique [0002] Ethanolamine has the chemical properties of basicity, amine and alcohol, and is widely used in industry. For example, diethanolamine solution can be effectively desulfurized, and it is often used as a desulfurization solvent in tail gas treatment equipment in industrial production (Tzn-Wei Shih Meng-Hui Li, Heat capacity of aqueous mixtures ofdiethanolamine with 2-amino-2-methyl-1-propanol, Fluid Phase Equilibria, 2002, 202: 233-237); in addition, it can form chelates with various metal ions (Lin Weiping, Fu Ruowen, Lu Yun etc., amine-type chelating fiber on Au 3+ Adsorption Behavior, Journal of Materials Science, 1994, 8(4): 369-371). The source of ethanolamine is very rich. If the stability and easy separation of polymer reagents are used to ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/26
Inventor 刘晓宁魏荣卿王燕芹
Owner NANJING TECH UNIV
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