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Scale inhibiting dispersant composition and use thereof

A composition and material technology, applied in the direction of scale removal and water softening, natural water treatment, chemical instruments and methods, etc., can solve the problems of chilling water volume and heat exchange efficiency reduction, equipment and pipeline deposition, scaling and deposition, etc. , to achieve the effect of inhibiting scaling, reducing complexity and workload, and prolonging service life

Pending Publication Date: 2017-04-05
ECOLAB USA INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During this process, the water quality usually has a high tendency of scaling and suspended deposition, and the system often encounters the problem of scaling and deposition, which will cause deposition or even blockage in equipment and pipelines, which will eventually lead to the reduction of quenching water volume and heat exchange efficiency.

Method used

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  • Scale inhibiting dispersant composition and use thereof
  • Scale inhibiting dispersant composition and use thereof
  • Scale inhibiting dispersant composition and use thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] An aqueous composition containing) 27.6 g of component 1) and 12 g of component 2) was prepared by the following method:

[0056] 1. 60g of sodium acrylate polymer (purchased from Nalco Company, product number PR4512, solution concentration is 46wt.%) is loaded into the reactor;

[0057] 2. Slowly add the copolymer of 40g of acrylic acid and sodium p-styrene sulfonate (available from Nalco Company, product number PR4848, solution concentration is 30wt.%) to the reactor and stir to make the components fully mix.

Embodiment 2

[0059] An aqueous composition containing 9.2 g of component 1), 35.25 g of component 2) and 2.4 g of component 4) was prepared by the following method:

[0060] 1. 20 g of sodium acrylate polymer (purchased from Nalco Company, product number PR4512, solution concentration is 46wt.%) is loaded into the reactor;

[0061] 2. Slowly add 75g of acrylic acid, 2-acrylamide-2-methylpropanesulfonate sodium and 4-MNDMAPN-HAPQ copolymer (purchased from Nalco Company, product number D04C0, solution concentration is 47wt.%) into the reactor and agitate to allow the components to mix thoroughly;

[0062] 3, open the tap of cooling jacket, then 5g NaOH solution (purchased from Nalco Company, commodity number R-7480, solution concentration is 48wt.%) very slowly adds in the described reactor to adjust pH value to 10 , then continue stirring until the ingredients are fully combined.

Embodiment 3

[0064] An aqueous composition containing 8 g of component 1), 12 g of component 2) and 20 g of component 3) was prepared by the following method:

[0065] 1. 20g of acrylic acid / maleic acid copolymer (purchased from BASF, product number CP5, solution concentration is 40wt.%) is loaded into the reactor;

[0066] 2. Slowly add the copolymer of 40g of acrylic acid and sodium p-styrene sulfonate (available from Nalco Company, product number PR4848, solution concentration is 30wt.%) to the reactor and stir to make the components fully mix;

[0067] 3. Slowly add 40 g of 2-phosphorylbutane-1,2,4-tricarboxylic acid solution (purchased from Nalco Company, product number R-2244, solution concentration is 50wt.%) to the reactor Neutralize and stir to combine ingredients well.

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Abstract

The invention discloses a composition. The composition contains a component (1) and a component (2), wherein the component (1) is selected from one or more of groups consisting of the following substances: acrylic acid, methacrylic acid, maleic acid, fumaric acid and itaconic acid monomers or homopolymers of water-soluble salts thereof or copolymers of two or more of monomers; and the component (2) is selected from one or more of groups consisting of the following substances: acrylic acid and water-soluble salts thereof and copolymers of sulfonate monomers, optional acrylamide and optional fluorescent monomers. The invention further discloses use of the composition.

Description

technical field [0001] The present application relates to but is not limited to antiscaling and dispersing agent compositions, such as antiscaling and dispersing agent compositions for treatment of gray and black water in coal gasification systems. Background technique [0002] In the coal water slurry gasification process, slag water treatment is a very important link. Its main purpose is to cool black water, recover heat, remove dissolved gas, realize slag water separation and water recycling. Therefore, the normal operation of the slag water system is a necessary condition for the long-term stable operation of the entire system. During this process, the water quality usually has a high tendency of scaling and suspended deposition, and the system often encounters the problem of scaling and deposition, which will cause deposition or even blockage in equipment and pipelines, which will eventually lead to the reduction of quenching water volume and heat exchange efficiency. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F5/10C02F5/12
CPCC02F5/10C02F5/14C23F14/02C02F5/12C08L33/02C08L33/24C08L25/18C02F2103/34
Inventor 韩灵凤童银银杨帆于春波
Owner ECOLAB USA INC
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