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A kind of preparation method of columnar styrene-divinylbenzene copolymer hydrophobic catalyst carrier

A technology of divinylbenzene and catalyst carrier, which is applied in the direction of catalyst carrier, physical/chemical process catalyst, organic compound/hydride/coordination complex catalyst, etc. It can solve the small diameter of SDB microspheres and the lack of columnar SDB products , bed mass transfer resistance and other problems, to achieve the effect of simple process, good mechanical strength, attractive force and low surface energy

Inactive Publication Date: 2018-01-16
SOUTHWEAT UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, the diameter of SDB microspheres is too small, and there is a lack of columnar SDB products, etc., which lead to the low porosity between the Pt-SDB and the hydrophilic filler in the engineering application, and the bed mass transfer resistance of the hydrogen-water-liquid phase exchange is relatively low. Large, large amount of liquid accumulation, prone to flooding, etc., low exchange efficiency

Method used

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  • A kind of preparation method of columnar styrene-divinylbenzene copolymer hydrophobic catalyst carrier
  • A kind of preparation method of columnar styrene-divinylbenzene copolymer hydrophobic catalyst carrier
  • A kind of preparation method of columnar styrene-divinylbenzene copolymer hydrophobic catalyst carrier

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Effect test

Embodiment 1

[0027] A preparation method of a columnar styrene-divinylbenzene copolymer hydrophobic catalyst carrier, the steps are:

[0028] a. Preparation (powder) styrene-divinylbenzene copolymer (hydrophobic catalyst carrier):

[0029] Get 2 parts by mass of styrene, 2 parts by mass of divinylbenzene, 0.02 parts by mass of benzoyl peroxide, 8 parts by mass of toluene, 6 parts by mass of n-heptane, and 5 parts by mass of ethylene dichloride, mix to obtain a mixture, spare;

[0030] Add 100 parts by mass of water, 0.1 part by mass of polyvinyl alcohol, 0.1 part by mass of calcium carbonate and 0.01 part by mass of sodium dodecylbenzenesulfonate into a reaction vessel (for example: a three-necked flask, etc.), and heat it to a temperature of 25 ℃, preferably after the solid matter (all) is dissolved, the mixture is added into the reaction vessel, heated to a temperature of 70°C, and reacted under stirring (for suspension polymerization), the stirring speed is controlled to be 70r / min, an...

Embodiment 2

[0034] A preparation method of a columnar styrene-divinylbenzene copolymer hydrophobic catalyst carrier, the steps are:

[0035] a. Preparation (powder) styrene-divinylbenzene copolymer (hydrophobic catalyst carrier):

[0036] Take 10 parts by mass of styrene, 13 parts by mass of divinylbenzene, 0.6 parts by mass of benzoyl peroxide, 16 parts by mass of toluene, 13 parts by mass of n-heptane, and 12 parts by mass of dichloroethane, and mix to obtain a mixture, spare;

[0037] Add 200 parts by mass of water, 0.5 parts by mass of polyvinyl alcohol, 0.5 parts by mass of calcium carbonate and 0.06 parts by mass of sodium dodecylbenzenesulfonate into a reaction vessel (for example: a three-necked flask, etc.), and heat to a temperature of 40 ℃, preferably after the solid matter (all) is dissolved, the mixture is added to the reaction vessel, heated to a temperature of 90 ℃, and reacted under stirring (for suspension polymerization), the stirring speed is controlled to be 200r / min,...

Embodiment 3

[0041] A preparation method of a columnar styrene-divinylbenzene copolymer hydrophobic catalyst carrier, the steps are:

[0042] a. Preparation (powder) styrene-divinylbenzene copolymer (hydrophobic catalyst carrier):

[0043] Take 6 parts by mass of styrene, 7.5 parts by mass of divinylbenzene, 0.31 parts by mass of benzoyl peroxide, 12 parts by mass of toluene, 9 parts by mass of n-heptane, and 8 parts by mass of dichloroethane, and mix to obtain a mixture, spare;

[0044] Add 150 parts by mass of water, 0.3 parts by mass of polyvinyl alcohol, 0.3 parts by mass of calcium carbonate and 0.03 parts by mass of sodium dodecylbenzenesulfonate into a reaction vessel (for example: a three-necked flask, etc.), and heat to a temperature of 32 ℃, preferably after the solid matter (all) is dissolved, the mixture is added to the reaction vessel, heated to a temperature of 80°C, and reacted under stirring (for suspension polymerization), the stirring speed is controlled to be 130r / min, ...

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Abstract

The invention discloses a preparation method of a columnar styrene and divinyl benzene copolymer hydrophobic catalyst carrier. The method is characterized by including the steps of mixing styrene, divinyl benzene, benzoyl peroxide, methylbenzene, n-heptane and dichloroethane into a mixture, adding water, polyvinyl alcohol, calcium carbonate and sodium dodecyl benzene sulfonate into a reaction container, heating the materials to 25-40 DEG C over stirring, adding the mixture, heating the mixture to 70-90 DEG C, conducting stirring reaction for 7-9 hours, conducting filtering, washing and drying solid to prepare columnar styrene and divinyl benzene copolymer, mixing the copolymer with adhesives and polytetrafluoroethylene, filling a die with the mixture, pressing the mixture into a column, and drying the column to prepare the columnar styrene and divinyl benzene copolymer hydrophobic catalyst carrier. The prepared product and hydrophilic filler are filled and are high in matching degree, the pressure drop of a bed layer is small, and the method can be used for heavy water tritium extraction and waste water tritium removal and is good in effect.

Description

technical field [0001] The invention belongs to the preparation of organic macromolecular compounds used for tritium extraction from heavy water and tritium-containing wastewater, and relates to a method for preparing a columnar styrene-divinylbenzene copolymer hydrophobic catalyst carrier. The columnar styrene-divinylbenzene copolymer (abbreviated as SDB) prepared by the present invention is used for tritium extraction in heavy water and tritium removal in tritium-containing wastewater, and is especially helpful for tritium extraction in heavy water and tritium removal in tritium-containing wastewater by Pt / SDB hydrophobic catalyst. engineering applications. Background technique [0002] As the important issues of energy and environment faced by human beings become more and more obvious, nuclear technology, as a clean energy technology, has been valued by countries all over the world; the development of new energy sources such as fission energy, fusion energy and fusion-fis...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L25/08C08L25/02C08L27/18C08L3/02C08L39/06C08L1/28C08L29/04C08F212/36C08F212/08C08F2/20B01J32/00B01J31/06
CPCB01J31/06C08F2/20C08F212/08C08F212/36C08L25/02C08L25/08C08L2201/08C08L2203/14C08L2205/03C08L27/18C08L3/02C08L39/06C08L1/286C08L29/04
Inventor 刘才林李秀春任先艳杨海君王玉平杨莉彭碧辉亓秀娟吴桐
Owner SOUTHWEAT UNIV OF SCI & TECH
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