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Preparation and application of circulating water high-efficiency corrosion and scale inhibitor

A technology of corrosion and scale inhibitor and scale inhibitor, which is applied in the field of circulating water system, can solve the problems of high hardness and alkalinity, and increase the difficulty of purpose, and achieve the effect of saving industrial water and reducing costs.

Inactive Publication Date: 2016-11-16
WEIHAI XIANGYU TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, as the concentration ratio increases, the scaling and corrosion factors of the circulating water system also increase exponentially. Especially in some northern areas, due to the high hardness and alkalinity of groundwater, it is more difficult to achieve the purpose of water saving through high concentration ratio operation.

Method used

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  • Preparation and application of circulating water high-efficiency corrosion and scale inhibitor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Embodiment 1: choose raw material by weight percentage:

[0012] HPA 10%

[0013] AMPS 15%

[0014] AA 5%

[0015] Ammonium persulfate 5%

[0016] Sodium hypophosphite 1%

[0017] Pure water 64%

[0018] Add a certain amount of water and reducing agent into a multi-necked flask equipped with a reflux cooler, a thermometer, a constant pressure dropping funnel and a magnetic stirrer, heat up and stir, when the water in the bottle reaches a certain temperature. At the same time, drop the mixed monomer (AA / AMPS, HPA) and oxidant (ammonium persulfate) to maintain a certain temperature range. After the dropwise addition, continue to maintain a certain temperature, keep it warm for a period of time, and cool to obtain the copolymer for corrosion and scale inhibition. agent.

Embodiment 2

[0019] Embodiment 2: select raw material by weight percentage:

[0020] HPA 15%

[0021] AMPS 25%

[0022] AA 10%

[0023] Ammonium persulfate 7%

[0024] Sodium hypophosphite 5%

[0025] Pure water 38%

[0026] Add a certain amount of water and reducing agent into a multi-necked flask equipped with a reflux cooler, a thermometer, a constant pressure dropping funnel and a magnetic stirrer, heat up and stir, when the water in the bottle reaches a certain temperature. At the same time, drop the mixed monomer (AA / AMPS, HPA) and oxidant (ammonium persulfate) to maintain a certain temperature range. After the dropwise addition, continue to maintain a certain temperature, keep it warm for a period of time, and cool to obtain the copolymer for corrosion and scale inhibition. agent.

Embodiment 3

[0027] Embodiment 3: select raw material by weight percentage:

[0028] HPA 20%

[0029] AMPS 30%

[0030] AA 10%

[0031] Ammonium persulfate 10%

[0032] Sodium hypophosphite 5%

[0033] Pure water 25%

[0034] Add a certain amount of water and reducing agent into a multi-necked flask equipped with a reflux cooler, a thermometer, a constant pressure dropping funnel and a magnetic stirrer, heat up and stir, when the water in the bottle reaches a certain temperature. At the same time, drop the mixed monomer (AA / AMPS, HPA) and oxidant (ammonium persulfate) to maintain a certain temperature range. After the dropwise addition, continue to maintain a certain temperature, keep it warm for a period of time, and cool to obtain the copolymer for corrosion and scale inhibition. agent.

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Abstract

With the increasing shortage of water resources, it is of great significance to save industrial circulating cooling water and increase the concentration of circulating water. The invention aims at rehydration of circulating water with high hardness and high alkalinity, and develops the formulation and application of circulating water treatment agents for the purpose of increasing the concentration multiple of circulating water and saving water. The main components of the invention are acrylic acid (AA), hydroxypropyl acrylate (HPA), 2-acrylamide-2-methylpropyl sulfonic acid (AMPS), ammonium persulfate, sodium hypophosphite and other raw materials through orthogonal synthesis copolymerization things.

Description

technical field [0001] The invention relates to the field of circulating cooling water treatment, in particular to a circulating water system for treating high hardness, high alkalinity and high concentration multiple. Background technique [0002] Water is an important life material on which all life on earth depends for survival, and it is also an irreplaceable important natural resource. According to the report of the United Nations, fresh water resources will become the most tense natural resources in the world. We are entering an era of water scarcity, and if nothing is done, the world will face serious problems. [0003] The total amount of water resources in my country is 2.8 trillion m³, ranking sixth in the world, and the per capita share is 1 / 4 of the world, ranking 109th in the world. Water shortage is the most serious resource problem in my country. The greatest potential for saving water is to save industrial cooling water. The use of circulating water for coo...

Claims

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Application Information

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IPC IPC(8): C02F5/12C02F103/02
CPCC02F5/12C02F2103/023C02F2303/08
Inventor 陈百桂李洪社喻果
Owner WEIHAI XIANGYU TECH