Submillimeter-level polystyrene-base spherical active carbon, and preparation method and application thereof

A polystyrene-based, sub-millimeter technology, applied in chemical instruments and methods, other chemical processes, alkali metal oxides/hydroxides, etc., can solve the complex production process of phenolic resin, the high cost of spherical activated carbon, and the price of phenol. Expensive and other problems, to achieve the effect of easy industrial production, good sphericity, and cheap raw materials

Active Publication Date: 2016-12-14
CHANGZHOU YINGZHONG NANO TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the research direction at home and abroad is mainly spherical activated carbon prepared from phenolic resin. Industrially, phenolic resin is usually produced by polycondensation of phenol or its homologues and formaldehyde. The raw material phenol is expensive, and the production process of phenolic resin is complicated. High consumption, resulting in higher cost of spherical activated carbon prepared

Method used

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  • Submillimeter-level polystyrene-base spherical active carbon, and preparation method and application thereof
  • Submillimeter-level polystyrene-base spherical active carbon, and preparation method and application thereof
  • Submillimeter-level polystyrene-base spherical active carbon, and preparation method and application thereof

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Embodiment 1

[0033] A preparation method of submillimeter polystyrene-based spherical activated carbon, comprising the following steps:

[0034] (1) fully mix the reaction monomer 5g styrene and 40g divinylbenzene in a three-necked flask to obtain a mixed monomer, and add 0.25g initiator dibenzoyl peroxide to the mixed monomer, stir, and make the peroxidized Benzoyl was fully dissolved, then 0.45g porogen n-pentane was added, and oil phase A was made after fully stirring; 900g deionized water was added to a three-necked flask equipped with an electric stirrer, a thermometer and a condenser tube, and the Add 18g of dispersant gelatin to deionized water, and add 90g of sodium chloride to prevent the polymerization of polar monomers in water, heat slowly and fully stir to form water phase B, stop stirring after heating up to 55°C; Slowly add phase A into water phase B, fully exclude oxygen, and then raise the temperature to 90°C at a rate of 10°C / min, keep the temperature constant for 3 hours...

Embodiment 2

[0041] A preparation method of submillimeter polystyrene-based spherical activated carbon, comprising the following steps:

[0042](1) Fully mix the reaction monomer 20g styrene and 20g divinylbenzene in a three-necked flask to obtain a mixed monomer, and add 0.2g initiator dibenzoyl peroxide to the mixed monomer, stir, and make the peroxidized Benzoyl is fully dissolved, then add 0.3g of porogen n-pentane, fully stir to form oil phase A; add 150g of deionized water to a three-necked flask equipped with an electric stirrer, a thermometer and a condenser tube, and then add Add 0.5g of dispersant gelatin to deionized water, and add 7.5g of sodium chloride to prevent the polymerization of polar monomers in water, heat slowly and fully stir to form water phase B, stop stirring after heating up to 55°C; configure the above Slowly add the oil phase A into the water phase B, fully remove the oxygen, and then raise the temperature to 90°C at a rate of 5°C / min, keep the temperature for...

Embodiment 3

[0049] A preparation method of submillimeter polystyrene-based spherical activated carbon, comprising the following steps:

[0050] (1) In a three-necked flask, the reaction monomer 30g styrene and 10g divinylbenzene are fully mixed to obtain a mixed monomer, and 0.4g initiator dibenzoyl peroxide is added in the mixed monomer, stirred, and the peroxidized Benzoyl is fully dissolved, then add 0.2g porogen n-pentane, and stir well to form oil phase A; add 600g deionized water to a three-necked flask equipped with an electric stirrer, a thermometer and a condenser tube, Add 6g of dispersant gelatin to deionized water, and add 25g of sodium chloride to prevent the polymerization of polar monomers in the water, heat slowly and fully stir to form water phase B, stop stirring after heating up to 55°C; Slowly add phase A into water phase B, fully remove oxygen and then raise the temperature to 70°C at a rate of 1°C / min, keep the temperature for 1h, filter, dry in vacuum, and obtain po...

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Abstract

The invention discloses a submillimeter-level polystyrene-base spherical active carbon, and a preparation method and application thereof. The preparation method comprises the following steps: preparing polystyrene-base microspheres from styrene and divinylbenzene, swelling the polystyrene-base microspheres in carbon tetrachloride, adding a catalyst, and curing to form to obtain the super-crosslinked thermosetting polystyrene-base resin spheres; immersing the resin spheres in a saturated sodium chloride solution, cleaning sequentially with dilute hydrochloric acid, a sodium hydroxide solution and deionized water to a neutral state, and drying; carrying out high temperature carbonization and vapor activation to obtain polystyrene-base spherical active carbon; and carrying out surface modification on the polystyrene-base spherical active carbon by air oxidation and high-temperature nitrogen heat treatment. The preparation method is simple in technique, and lowers the production cost. The obtained spherical active carbon has the advantages of smooth surface, high sphericity and large specific area (up to 960-1400 m<2> / g), can be used for adsorbing urotoxin creatinine, and has wide application prospects in the field of uremia treatment.

Description

technical field [0001] The invention relates to a spherical activated carbon, in particular to a submillimeter polystyrene-based spherical activated carbon and its preparation method and application. Background technique [0002] Spherical activated carbon is a high-tech, high value-added product and a new type of high-performance activated carbon. Compared with conventional activated carbon, spherical activated carbon has a spherical appearance, good wear resistance, high mechanical strength, high packing density, uniform particle distribution, small flow resistance, easy control of pore size distribution, fast adsorption and desorption speed, and good physiological compatibility. Features. In recent years, it has been widely used in advanced environmental protection, catalyst carrier and physiological medicine. [0003] The use of activated charcoal to treat kidney disease began in the 1960s. In 1964, Greek scholars first used unwrapped activated charcoal to directly con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B31/10C01B31/08B01J20/20B01J20/28B01J20/30C08F212/08C08F212/36C08J9/28
CPCB01J20/20B01J20/26B01J20/28019B01J20/28064B01J20/28066B01J20/28071C08F212/08C08F212/36C08J9/28C08J2325/08C08J2325/16
Inventor 姜兴茂胡泊魏国辉全林
Owner CHANGZHOU YINGZHONG NANO TECH
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