Phosphorus-free corrosion and scale inhibition all-in-one agent for treating circulating cooling water and preparation method

A phosphorus-free corrosion inhibition, treatment cycle technology, applied in chemical instruments and methods, water/sludge/sewage treatment, descaling and water softening, etc. , to achieve cost reduction, simple corrosion and scale inhibition control effect, no scaling effect

Inactive Publication Date: 2019-07-19
SUZHOU ANFENG ENVIRONMENT PROTECTION TECH CO LTD
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  • Abstract
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  • Claims
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Problems solved by technology

[0002] During the recycling process of industrial cooling water, there will be different degrees of inorganic salt deposition, corrosion, and bacteria and algae growth, which wi

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  • Phosphorus-free corrosion and scale inhibition all-in-one agent for treating circulating cooling water and preparation method
  • Phosphorus-free corrosion and scale inhibition all-in-one agent for treating circulating cooling water and preparation method
  • Phosphorus-free corrosion and scale inhibition all-in-one agent for treating circulating cooling water and preparation method

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[0037] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

[0038] A phosphorus-free corrosion and scale inhibitor integrated agent for treating circulating cooling water, according to mass percentage, is composed of 15-20% polyepoxysuccinic acid (sodium), 20-30% hydrolyzed polymaleic acid, 20- 30% of 2-acrylamido-2-methylpropanesulfonic acid, 5-10% of zinc sulfate and the balance of ionized water.

[0039] Polyepoxysuccinic acid (sodium) has a good scale inhibition and dispersion effect on calcium carbonate, calcium sulfate, barium sulfate, calcium fluoride and silicon scale in circulating cooling water;

[0040] Hydrolyzed polymaleic acid has a good effect of inhibiting the growth of scale and peeling off old scale;

[0041] 2-Acrylamido-2-methylpropanesulfonic acid, which has a good effect of descaling and inhibiting the growth of scale;

[0042] Zinc sulfate, which can inhibit the c...

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Abstract

The invention discloses a phosphorus-free corrosion and scale inhibition all-in-one agent for treating circulating cooling water. The agent is prepared from the following components in percentage by mass: 15-20% of polyepoxysuccinic acid (sodium salt), 20-30% of hydrolyzed polymaleic acid, 20-30% of 2-acrylamide-2-methylpropanesulfonic acid, 5-10% of zinc sulfate and the balance of deionized water. Accroding to the invention, the agent is free of organic phosphonates and inorganic phosphates, is a phosphorus-free product, can be completely biodegraded, cannot cause deterioration of natural environment and biological death or secondary pollution of the ecological environment after discharged into the natural environment along with wastewater of a circulating cooling water system, and is quite environmentally friendly. Compared with an existing mainstream phosphorus formula and a formula requiring for separated adding of a phosphorus-free corrosion inhibitor and a scale inhibitor, the agent of the invention has the advantages that the release amount is small, the release is simple and convenient, the scale inhibition rate is 96% or above, and the corrosion inhibition rate is 95% or above, so that the treatment cost of the circulating cooling water is greatly reduced.

Description

technical field [0001] The invention belongs to the technical field of water treatment, and in particular relates to a phosphorus-free corrosion and scale inhibition integrated agent for treating circulating cooling water and a preparation method thereof. Background technique [0002] During the recycling process of industrial cooling water, there will be different degrees of inorganic salt deposition, corrosion, and bacteria and algae growth, which will cause serious consequences such as reduced efficiency of heat exchange equipment, blockage, corrosion and perforation, and bring great hidden dangers to industrial production. . The water treatment chemical agent is to meet the water quality requirements of different cooling circulating water systems, to form the best water treatment formula and the corresponding supporting treatment technology to stabilize the water quality, so as to meet the requirements of different industrial systems and drainage, so as to ensure the nor...

Claims

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Application Information

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IPC IPC(8): C02F5/12
CPCC02F5/125
Inventor 施劲强程道飞陈中楠
Owner SUZHOU ANFENG ENVIRONMENT PROTECTION TECH CO LTD
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