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Dedicated ion exchange resin for condensed water precision processing and preparation method thereof

A technology of ion exchange resin and condensate polishing treatment, which is applied in the chemical field to achieve the effect of high mechanical strength and good resistance to organic matter

Inactive Publication Date: 2010-05-12
JIANGSU SUQING WATER TREATMENT ENG GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the existing literature records, there is no report and application example about the special ion exchange resin and its preparation method for condensate polishing with adjustable particle size

Method used

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  • Dedicated ion exchange resin for condensed water precision processing and preparation method thereof
  • Dedicated ion exchange resin for condensed water precision processing and preparation method thereof
  • Dedicated ion exchange resin for condensed water precision processing and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] A special ion exchange resin for condensate polishing treatment, the resin includes a skeleton polymerized from styrene and divinylbenzene, and a cationic functional resin with concentrated sulfuric acid and dichloroethane as the main components is connected to the skeleton. group, or an anionic functional group with chloromethyl ether, trimethylamine and zinc chloride as the main components, characterized in that the cationic functional group and the anionic functional group also contain sodium hydroxide, Composite multi-component porogen and chain transfer agent, containing benzoyl peroxide, polyvinyl alcohol and solid paraffin in the composite multi-component porogen, containing cycloethane and sodium chloride in the chain transfer agent, the The shape of the ion exchange resin is spherical.

[0046] A preferred embodiment of the present invention is that, in the ion exchange resin, the content of benzoyl peroxide is set to 0.15%, the content of polyvinyl alcohol is ...

Embodiment 2

[0050] A kind of preparation method of special cation exchange resin for condensate polishing treatment, described preparation method comprises the steps:

[0051] 1. Aggregation operation:

[0052] 1. Check whether the polymerization kettle and mixing kettle are clean; whether the stirring blade is firm; whether the position is correct; whether there are adherents; whether the water, electricity, steam, vacuum, and vent valves are opened and closed normally; whether the thermometer is in good condition; whether the auxiliary equipment is in good condition .

[0053] 2. Check whether the scale is correct; whether the skeleton container is clean; accurately measure the skeleton raw materials styrene and divinylbenzene according to the ratio of the skeleton, and store them in the skeleton container. Accurately measure the solid wax, benzoyl peroxide, methylene blue (catalyst) and cyclohexane, and place them beside the mixing kettle for later use.

[0054] 3. Inhale the skeleto...

Embodiment 3

[0097] A kind of preparation method of special anion exchange resin for condensate polishing treatment, described preparation method comprises the steps:

[0098] 1. Polymerization operation: the same as the preparation method of the above-mentioned cation exchange resin for condensate polishing treatment.

[0099] 2. Extraction operation:

[0100] 1. Carefully check whether the equipment in use is in good condition and whether the valve is in good condition.

[0101] 2. Inhale 2500kg of toluene into the high level tank.

[0102]3. Put 1500kg of the polymer (white ball) that has been baked and screened into the extraction kettle, and put 2500kg of toluene from the high-level tank into the extraction kettle, start the stirrer in the extraction kettle to stir, and heat up to 75±5 At ℃, keep warm for 1 hour ± 15 minutes, then put the toluene into the evaporation recovery kettle through the valve, then put the toluene in the high level tank into the extraction kettle again, and ...

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Abstract

The invention discloses a dedicated ion exchange resin for condensed water precision processing and a preparation method thereof. The resin comprises a framework polymerized by styrene and divinylbenzene; the framework is connected with a cationic functional group taking concentrated sulfuric acid and dichloroethane as main components or an anionic functional group taking chloromethyl ether, trimethylamine and zinc chloride as man components; the functional group also contains sodium hydroxide, benzoyl peroxide, polyving akohol, solid paraffin, cyclohexane and sodium chloride; and the appearance of the ion exchange resin is in ball shape. The preparation method comprises the following steps: evenly mixing raw materials, carrying out polymerization reaction, then extracting, sulfonating or chloridizing and alinating; and finally post-processing. The resin has favorable heat resistance and oxidation resistance, anti-seepage strength and granularity uniformity, organic matter resistance, high mechanical strength and simple preparation process and the like.

Description

technical field [0001] The invention relates to water treatment technology in the field of chemistry, in particular to a special ion exchange resin for condensate fine treatment and a preparation method thereof. Background technique [0002] Ion exchange resin is a kind of polymer compound with a network structure with functional groups. Its structure is composed of three parts: an insoluble three-dimensional space network skeleton, a functional group connected to the skeleton and the opposite of the functional group. Charge-exchangeable ions. In industries such as thermal power, nuclear power units and some petrochemical industries, there are high requirements for the physical and mechanical properties of ion exchange resins. Because this ion exchange resin is often used for condensate in condensate polishing systems, this condensate system has the characteristics of high temperature, high pressure, and high flow rate. In the past, the ion exchange resins for domestic con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J39/20B01J41/14C02F1/42
Inventor 钱平
Owner JIANGSU SUQING WATER TREATMENT ENG GROUP
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