Terpolymer, multifunctional water treatment agent containing the copolymer and preparation method

A terpolymer, water treatment agent technology, applied in chemical instruments and methods, water/sludge/sewage treatment, descaling and water softening, etc. Large and other problems, to achieve the effect of a wide range of water quality, easy biodegradation, and high thermal stability

Inactive Publication Date: 2018-01-30
山东巨业精细化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This often leads to more dosing equipment, cumbersome operations, and increased costs. Sometimes gels are produced due to the interaction between treatment agents, which reduces the use of agents.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] A terpolymer made from the following raw materials in weight percent:

[0051] Allyl polyalkylene glycol (APAG) 33%, acrylic acid (AA) 3.0%, sodium allyl sulfonate (AS) 1.5%, thioglycolic acid 0.08%, sodium persulfate (NaPS) 0.12%, sodium hydroxide (NaOH) 1.2%, reverse osmosis water 61.1%.

[0052] Preparation:

[0053]Include the following steps:

[0054] (1) Take raw materials according to the above weight percentage;

[0055] (2) Take the weighed part and prepare the following solution with reverse osmosis water

[0056] ① Prepare a 23% aqueous solution of sodium persulfate for use;

[0057] ②Prepare an aqueous solution of acrylic acid with a concentration of 60% for use;

[0058] ③ Prepare a thioglycolic acid aqueous solution with a concentration of 0.91%, and set it aside;

[0059] ④Preparation concentration is 5% sodium hydroxide aqueous solution, stand-by;

[0060] (3) Add the remaining reverse osmosis water except the reverse osmosis water used in the ste...

Embodiment 2

[0068] A terpolymer made from the following raw materials in weight percent:

[0069] Allyl polyalkylene glycol (APAG) 37%, acrylic acid (AA) 5.0%, sodium allyl sulfonate (AS) 2.5%, thioglycolic acid 0.11%, sodium persulfate (NaPS) 0.16%, sodium hydroxide (NaOH) 1.7%, reverse osmosis water 53.6%.

[0070] The preparation method is the same as in Example 1.

Embodiment 3

[0072] A terpolymer made from the following raw materials in weight percent:

[0073] Allyl polyalkylene glycol (APAG) 35%, acrylic acid (AA) 3.64%, sodium allyl sulfonate (AS) 1.64%, mercaptoacetic acid 0.10%, sodium persulfate (NaPS) 0.14%, sodium hydroxide (NaOH) 1.4%, reverse osmosis water 58.1%.

[0074] The preparation method is the same as in Example 1.

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Abstract

The invention discloses a terpolymer, a multifunctional water treatment agent containing the copolymer and a preparation method. Among them, the terpolymer is prepared by free radical copolymerization of allyl alkylene glycol, acrylic acid and sodium allyl sulfonate. Composite multifunctional water treatment agent is made of the following raw materials: terpolymer, 2-butane-1,2,4-tricarboxylic acid, sodium ethylenediamine tetramethylene phosphonate, 2-hydroxyphosphono Acetic Acid, Isothiazolinone, Benzotriazole, 30% Sodium Hydroxide, Reverse Osmosis Water. The invention introduces allyl polyalkylene glycol and functional groups such as carboxyl, sulfonic acid and ether groups into the terpolymer, which can highly disperse the scale-forming ions and generate fluidized slag, which is discharged along with the sewage. The composite multifunctional water treatment agent of the present invention is a low-phosphorus green environmental protection multifunctional water treatment agent that is easily biodegradable; it has the multifunctional functions of scale inhibition, dispersion, corrosion inhibition, sterilization and algae killing, and avoids cumbersome operations , reducing equipment and reducing costs.

Description

technical field [0001] The invention relates to a terpolymer and its preparation, and also relates to a multifunctional water treatment agent containing the copolymer, which has the functions of scale inhibition, dispersion, corrosion inhibition, sterilization and algae killing, and its preparation method and application. Background technique [0002] The consumption of industrial cooling water is very large, accounting for more than 75% of the total water consumption. Water resources are one of the important energy sources for economic development. In order to save water, industrial cooling water needs to be treated and recycled. For the treatment of industrial circulating cooling water, scale inhibitors, dispersants, corrosion inhibitors and bactericides and algicides are usually used respectively. This often leads to more dosing equipment, cumbersome operation, increased cost, and sometimes gels are generated due to the interaction between treatment agents, which reduces...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F283/06C08F220/06C08F228/02C02F5/10C02F5/14
Inventor 李雪梅王强陈伟高鑫甘霖张振岭
Owner 山东巨业精细化工有限公司
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