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Preparation method for adsorbing and separating trifluorobenzene pyrimidine modified fiber balls

A technology of trifluorophenyl pyrimidine and modified fibers, which is applied in chemical instruments and methods, organic chemistry, other chemical processes, etc., can solve the problem of few reports of trifluoro phenyl pyrimidine, and achieve strong wear resistance and chemical corrosion resistance. The effect of performance, low production cost and strong adsorption capacity

Inactive Publication Date: 2020-08-18
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There have been researches on the treatment technology of fluoride persistent pollutants, because of its excellent stability, it cannot be degraded by traditional wastewater treatment methods
Adsorption and separation to remove organic and inorganic pollutants in environmental water has been considered to be a very effective and commonly used treatment method. The use of adsorption and separation to remove trifluoropyrimidine in water has become a concern for those skilled in the art. Adsorption and separation are used to remove Trifluoropyrim has rarely been reported

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] (1) Fiber ball pretreatment: In the reactor, add deionized water: 670mL, sulfuric acid: 110mL, ammonium persulfate: 50g, mix well, add fiber ball: 80g, soak at room temperature for 4 hours, heat up and boil, React for 30 minutes, separate solid and liquid, wash with deionized water, and dry to obtain pretreated fiber balls;

[0020] (2) Preparation of ethylenediamine-modified fiber balls: In the reactor, add deionized water: 780mL, ethylenediamine: 157mL, cetyltrimethylammonium bromide: 3g, stir to dissolve, add pretreatment Fiber balls: 80g, the temperature was raised to 40±2°C and kept at a constant temperature, refluxed for 5 hours, separated from solid and liquid, washed with deionized water, dried to obtain ethylenediamine fiber balls;

[0021] (3) Preparation of trifluoropyrimidine-modified fiber balls for adsorption and separation: In the reactor, add deionized water: 870mL, cysteine: 50g, stir and dissolve, add ethylenediamine fiber balls: 80g , the temperature...

Embodiment 2

[0023] (1) Fiber ball pretreatment: In the reactor, add deionized water: 640mL, sulfuric acid: 120mL, ammonium persulfate: 40g, mix well, add fiber ball: 100g, soak at room temperature for 4 hours, heat up and boil, React for 30 minutes, separate solid and liquid, wash with deionized water, and dry to obtain pretreated fiber balls;

[0024] (2) Preparation of ethylenediamine-modified fiber balls: In the reactor, add deionized water: 760mL, ethylenediamine: 168mL, cetyltrimethylammonium bromide: 2g, stir to dissolve, add pretreatment Fiber balls: 90g, the temperature rises to 40±2°C, reflux reaction for 5h, solid-liquid separation, washing with deionized water, drying to obtain ethylenediamine fiber balls;

[0025] (3) Preparation of trifluoropyrimidine-modified fiber balls for adsorption and separation: In the reactor, add deionized water: 850mL, cysteine: 60g, stir and dissolve, add ethylenediamine fiber balls: 90g , the temperature was raised to 45±2°C, and the reaction was...

Embodiment 3

[0027] (1) Fiber ball pretreatment: In the reactor, add deionized water: 700mL, sulfuric acid: 100mL, ammonium persulfate: 60g, mix well, add fiber ball: 60g, soak at room temperature for 4 hours, heat up and boil, React for 30 minutes, separate solid and liquid, wash with deionized water, and dry to obtain pretreated fiber balls;

[0028] (2) Preparation of ethylenediamine-modified fiber balls: In the reactor, add deionized water: 800mL, ethylenediamine: 146mL, cetyltrimethylammonium bromide: 4g, stir to dissolve, add pretreatment Fiber balls: 70g, the temperature was raised to 40±2°C and kept at a constant temperature, refluxed for 5 hours, separated from solid and liquid, washed with deionized water, dried to obtain ethylenediamine fiber balls;

[0029] (3) Preparation of trifluoropyrimidine-modified fiber balls for adsorption and separation: In the reactor, add deionized water: 890mL, cysteine: 40g, stir and dissolve, add ethylenediamine fiber balls: 70g , the temperature...

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Abstract

The invention discloses a preparation method for adsorbing and separating trifluorobenzene pyrimidine modified fiber balls, which is characterized by comprising the following steps: using pretreated fiber balls as an adsorbent skeleton, and modifying the pretreated fiber balls with ethylenediamine to obtain ethylenediamine fiber balls; then, in a reactor, adding the components in percentage by mass: deionized water 85-89% and cysteine 4-6%, stirring for dissolution, adding 6-10 % of ethylenediamine fiber balls, raising the temperature to 45 + / -2 DEG C and keeping the temperature constant; stirring reaction for 2 hours, and after the reaction is finished, carrying out solid-liquid separation, washing with deionized water, drying, putting the prepared fiber ball into a 0.2 mol / L copper sulfate solution, regulating the pH value to 4-5 with dilute sulfuric acid, soaking at room temperature for 24 hours, carrying out solid-liquid separation, washing with deionized water, and drying to obtain the trifluorobenzene pyrimidine modified fiber ball for adsorption separation. The adsorbing material has the advantages of selective adsorption on trifluorobenzene pyrimidine, good mechanical property, good chemical stability, high adsorption speed, easiness in elution and regeneration capacity.

Description

technical field [0001] The invention relates to a preparation method and application technology of an adsorption material, in particular to a preparation method and application of trifluoropyrimidine-modified fiber balls for adsorption and separation, and belongs to the technical field of separation material application. Background technique [0002] Trifluoropyrimidine (chemical name is 3,4-dihydro-2,4-dioxo-1-(pyrimidin-5-ylmethyl)-3-(α,α,α-trifluorom-tolyl) -2H-pyrido[1,2-α]pyrimidin-1-ium-3-salt is a new type of mesoionic insecticide developed by DuPont Company of the United States, which inhibits the orthosteric site on the insect acetylcholine receptor It is mainly registered for the control of rice planthoppers and other crop pests, and can replace insecticides such as imidacloprid that have produced drug resistance. At present, the research on this insecticide at home and abroad mainly involves synthesis and application technology etc., but there are few reports on ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/24B01J20/30C07D471/04
CPCB01J20/0237B01J20/0281B01J20/22B01J20/24C07D471/04
Inventor 李慧芝李冬梅孙担子
Owner UNIV OF JINAN
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