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Preparation method for grafting anthraquinone compound on surface of inorganic filler and application

An inorganic filler and surface grafting technology, which is applied in chemical instruments and methods, water pollutants, anaerobic digestion treatment, etc., can solve the problems of low final yield, long reaction steps, high risk, etc., and achieve simple reaction process , less reaction steps, good stability

Active Publication Date: 2019-07-23
XIAMEN UNIV OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are following problems in this method: (1) reaction step is long, time-consuming is long, final yield is low, and cost is high; (2) use the anthraquinone compound that contains sulfonyl chloride group to be easy to produce hydrogen chloride gas when contacting water vapor, dangerous Large, so the production environment needs to be strictly controlled during use, resulting in inconvenient operation and increased cost; (3) Although the porous inorganic filler has a large specific surface area, the internal porous structure is easily blocked by bacteria in practical applications, and cannot play a role. Only surface quinone-based compounds can function

Method used

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  • Preparation method for grafting anthraquinone compound on surface of inorganic filler and application
  • Preparation method for grafting anthraquinone compound on surface of inorganic filler and application
  • Preparation method for grafting anthraquinone compound on surface of inorganic filler and application

Examples

Experimental program
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Effect test

Embodiment 1

[0036] Stir 100 parts of absolute ethanol, 12 parts of 3-(2,3 glycidoxy) propyltriethoxysilane and 1 part of dilute hydrochloric acid with a mass concentration of 0.01wt% at room temperature for 0.5 hours, and add to 50 parts of In wollastonite with a particle size of 20 μm, the temperature was raised to 70° C., reacted for 3 hours, the temperature was lowered, filtered, the filtered solid was washed three times with absolute ethanol, and dried to obtain epoxy-modified wollastonite.

[0037] Add 100 parts of epoxy-modified wollastonite, 12 parts of 1,5-diaminoanthraquinone, 350 parts of toluene and 0.7 parts of 2-methylimidazole into the container, stir and react at room temperature for 2 hours, filter, and filter out the solid Wash three times with absolute ethanol and dry to obtain wollastonite grafted with anthraquinone compound on the surface. FT-IR analysis, product at 1668cm -1 A strong and sharp absorption peak appears at , which is the characteristic absorption peak o...

Embodiment 2

[0039] 100 parts of methanol, 20 parts of 3-(2,3 glycidoxy) propyltrimethoxysilane and 1 part of dilute hydrochloric acid with a mass concentration of 0.01 wt% were stirred at room temperature for 1 hour, and added to 100 parts of In the glass microbeads, the temperature was raised to 48°C, and the reaction was carried out for 5 hours, the temperature was lowered, filtered, the filtered solid was washed three times with absolute ethanol, and dried to obtain epoxy-modified glass microbeads.

[0040]Add 100 parts of epoxy-modified glass microspheres, 20 parts of 1-aminoanthraquinone, 500 parts of absolute ethanol and 0.5 parts of 1-methylimidazole into the container, stir and react at room temperature for 7 hours, filter, and filter out the solid for Wash with absolute ethanol three times and dry to obtain glass microspheres grafted with anthraquinone compound on the surface. The elemental analysis method was used to measure the N element content of the glass beads before and af...

Embodiment 3

[0042] 100 parts of isopropanol, 28 parts of 2-(3,4-epoxycyclohexyl) ethyltriethoxysilane and 1 part of dilute hydrochloric acid with a mass concentration of 0.01wt% were stirred at room temperature for 1.5 hours, and added to 200 parts In talc powder with an average particle size of 100 μm, the temperature was raised to 70° C., reacted for 1 hour, the temperature was lowered, filtered, and the filtered solid was washed three times with absolute ethanol and dried to obtain epoxy-modified talc powder 1.

[0043] Add 100 parts of epoxy-modified talc powder 1, 25 parts of 1-aminoanthraquinone, 450 parts of tetrahydrofuran and 0.5 parts of 1-methylimidazole into the container, stir and react at room temperature for 3 hours, filter, and filter out the solid with anhydrous Washed with ethanol for 3 times and dried to obtain talcum powder 1 grafted with anthraquinone compound on the surface. FT-IR analysis, product at 1667cm -1 A strong and sharp absorption peak appears at , which i...

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Abstract

The invention belongs to the field of water treatment, particularly relates to the field of treatment of pollutant-containing wastewater and relates to a preparation method for grafting an anthraquinone compound on the surface of inorganic filler and application. The preparation method comprises the following steps: taking an epoxy silane coupling agent and the inorganic filler to react, so as toobtain epoxy modified inorganic filler; then taking the epoxy modified inorganic filler and an amino-containing anthraquinone compound to react by utilizing high activity between an epoxy group and amino, so as to obtain the inorganic filler with the surface grafted with the anthraquinone compound. The inorganic filler with the surface grafted with the anthraquinone compound, provided by the invention, can be used for accelerating the degradation of pollutants including azo dyestuffs, nitrate and the like, and can be repeatedly used; the preparation method is wide in raw material source, few in reaction steps and low in cost; the inorganic filler with the surface grafted with the anthraquinone compound can be widely applied to treatment of the wastewater containing the pollutants includingthe azo dyestuffs, the nitrate and the like.

Description

technical field [0001] The invention relates to the field of water treatment engineering, in particular to a preparation method and application of an anthraquinone compound grafted on the surface of an inorganic filler. Background technique [0002] With the development of social economy, the continuous growth of population and the increasing demand for industrial and agricultural products, the discharge of many wastewater containing heavy metals and refractory pollutants is increasing, which seriously deteriorates the water quality and eventually affects the human body. It is a serious hazard to health as well as to the entire natural ecosystem. For example, azo dyes have become the most widely used synthetic dyes in the printing and dyeing process of textiles and clothing due to their simple synthesis process, low cost, and outstanding dyeing performance. However, under some special conditions, it can decompose and produce more than 20 kinds of carcinogenic aromatic amine...

Claims

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Application Information

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IPC IPC(8): C02F3/10C02F3/00C02F3/28C02F101/16C02F101/30
CPCC02F3/00C02F3/105C02F3/2806C02F2101/163C02F2101/308Y02W10/10
Inventor 严滨董正军叶茜曾孟祥
Owner XIAMEN UNIV OF TECH
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