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Scale- and corrosion-inhibiting and antibacterial compounded water treatment agent and preparation method of same

A technology of scale and corrosion inhibition and water treatment agent, which is applied in the chemical industry, can solve the problems of waste of dosing, small amount of fungicide addition, and difficult metering, etc., and achieve good effect and stable control

Active Publication Date: 2017-10-24
卢永杰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the amount of fungicide added is small, and it is not easy to measure on-site addition, and there is often waste of dosing
[0004] General fungicides cannot be well miscible with scale and corrosion inhibitors, because fungicides are cationic surfactants, while scale and corrosion inhibitors are anionic, and they will react when they are directly formulated together

Method used

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  • Scale- and corrosion-inhibiting and antibacterial compounded water treatment agent and preparation method of same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Scale and corrosion inhibition and sterilization compound water treatment agent, mainly composed of 2-phosphonic acid butane-1, 2, 4-tricarboxylic acid, hydroxyethylidene diphosphonic acid, hydrolyzed polymaleic anhydride, sulfonic acid copolymer, alkylphenol It is prepared from polyoxyethylene ether, quaternary ammonium salt and benzotriazole, and the weight ratio of each raw material is 2-10% of 2-phosphonic acid butane-1, 2, 4-tricarboxylic acid, hydroxyethylidene Diphosphonic acid 2-10%, hydrolyzed polymaleic anhydride 5-15%, sulfonic acid copolymer 3-10%, alkylphenol polyoxyethylene ether 0.1-1%, quaternary ammonium salt 2-10%, benzene three Azole 0.2-1%, the balance is water.

[0019] 2-phosphonobutane-1, 2, 4-tricarboxylic acid (PBTCA), hydroxyethylidene diphosphonic acid (HEDP), hydrolyzed polymaleic anhydride (HPMA), acrylic acid-2-acrylamide-2-methyl Propanesulfonic acid copolymer (AA / AMPS), branched quaternary ammonium salt or polyquaternary ammonium salt, a...

Embodiment 2

[0027] Composite water treatment agent for scale and corrosion inhibition and sterilization, mainly composed of 2-phosphonic acid butane-1, 2, 4-tricarboxylic acid, hydroxyethylidene diphosphonic acid, hydrolyzed polymaleic anhydride, acrylic acid-2-acrylamide-2 -Methylpropanesulfonic acid copolymer, alkylphenol polyoxyethylene ether, branched quaternary ammonium salt and benzotriazole, the weight ratio of each raw material is respectively 2-phosphonic acid butane-1, 2 , 20g of 4-tricarboxylic acid, 20g of hydroxyethylidene diphosphonic acid, 50g of hydrolyzed polymaleic anhydride, 30g of acrylic acid-2-acrylamide-2-methylpropanesulfonic acid copolymer, 1g of alkylphenol polyoxyethylene ether, Branched quaternary ammonium salt 20g, benzotriazole 2g, water 857mL.

[0028] As the preparation method of the above scale and corrosion inhibition and sterilization compound water treatment agent, the specific steps are as follows:

[0029] (1) Pour water into the mixing tank, turn on...

Embodiment 3

[0037] Composite water treatment agent for scale and corrosion inhibition and sterilization, mainly composed of 2-phosphonic acid butane-1, 2, 4-tricarboxylic acid, hydroxyethylidene diphosphonic acid, hydrolyzed polymaleic anhydride, acrylic acid-2-acrylamide-2 -Methylpropanesulfonic acid copolymer, alkylphenol polyoxyethylene ether, branched quaternary ammonium salt and benzotriazole, the weight ratio of each raw material is respectively 2-phosphonic acid butane-1, 2 , 30g of 4-tricarboxylic acid, 30g of hydroxyethylidene diphosphonic acid, 60g of hydrolyzed polymaleic anhydride, 40g of acrylic acid-2-acrylamide-2-methylpropanesulfonic acid copolymer, 2g of alkylphenol polyoxyethylene ether, Branched quaternary ammonium salt 30g, benzotriazole 3g, water 805mL.

[0038] As the preparation method of the above scale and corrosion inhibition and sterilization compound water treatment agent, the specific steps are as follows:

[0039] (1) Pour water into the mixing tank, turn on...

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Abstract

The invention discloses a scale- and corrosion-inhibiting and antibacterial compounded water treatment agent which includes, by weight, 2-10% of 2-phosphonobutane-1,2,4-tricarboxylic acid, 2-10% of hydroxyl ethidine diphosphonic acid, 5-15% of hydrolyzed polymaleic anhydride, 3-10% of a sulfonic acid copolymer, 0.1-1% of alkylphenol polyoxyethylene ether, 2-10% of quaternary ammonium salt, 0.2-1% of benzotriazole, and the balanced being water. In the invention, a scale- and corrosion-inhibiting agent is compounded with an antibacterial agent, so that the water treatment agent is multifunctional and can deal with three major problems of scaling, corrosion and microorganisms in air conditioner circulation water. The water treatment agent is added in a continuous manner, so that the water treatment agent can quite stably control the microorganisms; in addition, according to water quality in site, ratio of the scale- and corrosion-inhibiting agent to the antibacterial agent can be adjusted on the basis of specific situations.

Description

technical field [0001] The invention belongs to the technical field of chemical industry, and in particular relates to a compound water treatment agent for scale and corrosion inhibition and sterilization and a preparation method thereof. Background technique [0002] After long-term recycling of cooling water, it will inevitably bring about three problems: sediment adhesion, metal corrosion and microbial growth. The effective way to solve these three problems is to focus on the water quality, equipment materials and working conditions of the circulating water system. Select scale inhibitors, corrosion inhibitors, and fungicides to form a suitable water treatment process formula, determine process control conditions, and carry out normal operation of circulating cooling water to ensure that cooling towers, condensers and other equipment are in the best operating state, effectively It can effectively control the generation of scale, prevent the corrosion of pipeline equipment...

Claims

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Application Information

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IPC IPC(8): C02F5/14C02F1/50C23F11/14A01N33/12A01P1/00C02F103/02
CPCA01N33/12C02F1/50C02F5/14C02F2103/023C02F2303/04C02F2303/08C02F2305/04C23F11/149
Inventor 卢永杰
Owner 卢永杰
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