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Anion-cation exchange resin cleaning agent

An anion-cation exchange and cleaning agent technology, which is applied in the direction of ion exchange bed cleaning/flushing, ion exchange, ion exchange regeneration, etc., can solve the problems of harmful resin, iron, suspended solids and other resin pollution, cumbersome cleaning process, etc., to achieve saving The effect of power resources, increasing water production, and reducing the number of sewage discharges

Active Publication Date: 2014-04-30
SHENYANG DREAMLAND ENVIRONMENTS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] In summary, if there are many kinds of resin pollutants, the cleaning process is very cumbersome, and long-term cleaning is also harmful to the resin itself.
At present, there is no general-purpose warm-type resin cleaning agent that can solve resin pollution problems such as silicon, organic matter, iron, and suspended solids.

Method used

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  • Anion-cation exchange resin cleaning agent
  • Anion-cation exchange resin cleaning agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] First add 759 kg of water to the reaction kettle, heat the water temperature to 30 degrees, add 38 kg of disodium edetate, 23 kg of acrylic acid / sulfonic acid / acrylamide copolymer and 45 kg of polyacrylic acid, stir for 30 minutes, then add iso Construct 135 kg of decanol polyoxyethylene ether, stir for 60 minutes, and cool to 25 degrees to get the finished product.

[0030] The prepared cleaning agent was subjected to a cleaning test.

[0031] Before cleaning, first flush the resin bed as necessary, and then add the prepared resin cleaning agent to the ion exchanger according to 5-15% of the volume of the ion exchange resin through the injector, and then inject purified water into the ion exchanger. Finally, rinse with compressed air. During the rinsing process, scrub with air pressure, then stand still, and do it alternately; ;Wait until the foam is obviously reduced, directly enter the purified water to rinse, and stop when there is no foam; after the rinse is compl...

Embodiment 2

[0038] First add 741 kilograms of water to the reactor, heat the water temperature to 30 degrees, add 25 kilograms of phosphonobutane carboxylic acid, 18 kilograms of acrylic acid / sulfonic acid / acrylamide copolymer and 34 kilograms of polymaleic acid, stir for 30 minutes, and then Add 182 kg of polyoxyethylene polyoxypropylene block polyether, stir for 60 minutes, and cool to 25 degrees to obtain the finished product.

[0039] The prepared cleaning agent was subjected to a cleaning test.

[0040] Before cleaning, first flush the resin bed as necessary, and then add the prepared resin cleaning agent to the ion exchanger according to 5-15% of the volume of the ion exchange resin through the injector, and then inject purified water into the ion exchanger. Finally, rinse with compressed air. During the rinsing process, scrub with air pressure, then stand still, and do it alternately; ;Wait until the foam is obviously reduced, directly enter the purified water to rinse, and stop w...

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PUM

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Abstract

The invention relates to an anion-cation exchange resin cleaning agent. The anion-cation exchange resin cleaning agent is prepared from the following ingredients in percentage by weight: 5-25% of nonionic surfactant, 1-8% of descaling agent, 2-10% of chelating agent, 0-5% of dispersing agent and the balance of water, wherein the nonionic surfactant includes more than one of polyoxyethylene ether with the HLB (Hydrophile-Lipophile Balance) value being greater than 10 and block polyether, the descaling agent is a carboxylic copolymer, the chelating agent is disodium edetate or phosphonobutane carboxylic acid, and the dispersing agent is an acrylamide terpolymer.

Description

Technical field: [0001] The invention relates to an anion-cation exchange resin cleaning agent. Background technique: [0002] In the industry, the ion selectivity of anion and cation exchange resins is usually used to produce a certain level of primary or secondary desalinated water. In this method, the result of ion selection is that high-valent ions will replace low-valent ions. For example: 001×7 strongly acidic styrene cation exchange resin is represented by HR, when various cations in water (represented by C) react with the cationic resin, Cx++xHR=CRX+xH+ (x is the ion price), when the cation When the resin loses its exchange capacity, it can be regenerated with hydrochloric acid to provide hydrogen ions, CRX+xHCl=xHR+CClx. 201×7 strongly basic styrene anion exchange resin is represented by ROH, when various anions (represented by A) in water react with cationic resin, Ax-+ROH=RAX+xH2O (x is the ion price), when the anionic resin When the exchange capacity is lost, i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11D1/72C11D1/722C11D3/60B01J49/00B01J49/53B01J49/57B01J49/60
Inventor 沈红新
Owner SHENYANG DREAMLAND ENVIRONMENTS TECH
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