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Preparation of chelate resin of chelate resin in removing zinc ions in purified water of kit and application thereof

A technology for chelating resins and zinc ions, which can be used in water pollutants, other chemical processes, water/sewage treatment, etc. It can solve the problems of adverse effects of kit application, inhibition of microbial growth, inaccurate results, etc., and achieve adsorption equilibrium time Short, fast adsorption, high degree of chloromethylation effect

Active Publication Date: 2020-07-10
浙江康特生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Purified water will be used in the preparation process of the kit. If the purified water used contains zinc, it will have an adverse effect on the application of the kit.
For example, excessive zinc can inhibit the growth of microorganisms and reduce the activity of enzymes, resulting in inaccurate results of kits for detecting microbial biomass and enzyme activities
[0004] Zinc ions in purified water will affect the accuracy of the determination

Method used

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  • Preparation of chelate resin of chelate resin in removing zinc ions in purified water of kit and application thereof
  • Preparation of chelate resin of chelate resin in removing zinc ions in purified water of kit and application thereof
  • Preparation of chelate resin of chelate resin in removing zinc ions in purified water of kit and application thereof

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Effect test

Embodiment 1

[0029] This embodiment proposes a new type of chelating resin, polystyrene microspheres are chloromethylated and then reacted with the ligand nicotinic acid hydrazide to obtain a new type of adsorption resin that specifically adsorbs zinc ions, and its chemical formula is (CMB-NTH), the general structural formula is as follows:

[0030]

[0031] Since the ligand nicotinic acid hydrazide contains multiple coordination atoms N and O, and the spatial configuration of the ligand is easy to coordinate with the regular tetrahedral structure of the zinc ion, it has specificity.

Embodiment 2

[0033] refer to Figure 1~2 The schematic diagrams are the synthesis of chlorine balls from white balls in the new adsorption resin synthesis route and the reaction between chlorine balls and ligands in the new adsorption resin synthesis route. Concrete, a kind of preparation method of novel chelating resin comprises the following steps,

[0034] (1) Soak polystyrene microspheres in dichloromethane as a reaction solvent, then add chloromethylation reagent, soak to form a mixture;

[0035] (2) the primary mixture is added to the catalyst, and the continuous stirring reaction forms the secondary mixture;

[0036] (3) Suction filtration of the secondary mixture to remove the liquid, washing the resulting filter cake with acetone, ethanol, and distilled water successively and drying in vacuum at 50° C. to obtain chloromethylated polystyrene microspheres, i.e. chlorine spheres;

[0037] (4) Soak the chlorine ball in N,N-dimethylformamide as a reaction solvent for 24 hours, and fo...

Embodiment 3

[0043] Polystyrene microspheres can synthesize chloromethylated polystyrene microspheres with chloromethylation reagent 1,4-dichloromethoxybutane, but in the prior art, polystyrene microspheres with high crosslinking degree are used to prepare The degree of chloromethylation of chlorine spheres is low, and there are chlorine spheres that can be purchased directly. Although they have a high degree of cross-linking, the method of synthesizing chlorine spheres is to use these carcinogenic and toxic reagents such as chloromethyl ether. , is highly toxic. However, this embodiment proposes a preparation method of chloromethylated polystyrene microspheres (chlorine spheres), which can realize that the chloromethylation reagent has no carcinogenic toxicity, and the white spheres have a crosslinking degree of 6% and have a relatively high chlorine content.

[0044] Specifically, a preparation method of chloromethylated polystyrene microspheres comprises the steps of:

[0045] (1) Soak...

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Abstract

The invention discloses preparation of chelate resin of chelate resin in removing zinc ions in purified water of a kit and an application thereof. The preparation method comprises the following steps:adding ligand nicotinic hydrazide into a tertiary mixture; keeping a reactor closed, introducing nitrogen, and continuously stirring to react to form a quartic mixture; after the reaction is naturally cooled, filtering an obtained product of the four-time mixture to obtain the novel adsorption resin. The preparation has the following beneficial effects: the synthesized compound is a new compound;the chloromethylation degree of the synthesized chloromethylated polystyrene microspheres is high; the synthesized novel adsorbent resin has high selective adsorbability to zinc ions; the synthesizednovel adsorption resin can be completely eluted and can be repeatedly used; the synthesized novel adsorption resin is high in adsorption speed and short in adsorption equilibrium time; the synthesized novel chelating resin is applied to an adsorption kit to purify zinc ions in water, and the zinc ions in the purified water can be completely removed.

Description

technical field [0001] The invention relates to the technical field of adsorption resins, in particular to a novel chelating resin, a preparation method of the novel chelating resin and an application for removing zinc ions in kit purified water. Background technique [0002] As one of the common means of enrichment and separation of trace metal ions, modified resin is widely used because of its advantages such as better enrichment selectivity, easy separation of enriched ions, regenerable resin, acid and alkali resistance, and large adsorption capacity. Applied to selective adsorption, enrichment and separation of trace metal ions in solution. [0003] A kit is a type of box that contains all the chemical reagents used in a certain detection method. The use of a kit can reduce experimental errors and shorten the detection time, so the kit is being widely used. Purified water is used in the preparation process of the kit. If the purified water used contains zinc, it will ha...

Claims

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Application Information

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IPC IPC(8): C08F12/08C08F8/32C08F8/24B01J20/26B01J20/30C02F1/28C02F101/20
CPCB01J20/265C02F1/285C02F2101/20C08F8/32C08F8/24C08F12/08
Inventor 尹梦丹俞慧英俞锡灿俞小英
Owner 浙江康特生物科技有限公司
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