A kind of phosphorus-free water treatment agent composition and its application

A technology of water treatment agent and composition, which is applied in water/sludge/sewage treatment, special treatment target, complex/solubilizer treatment, etc. It can solve the problems of poor water treatment effect, achieve slow corrosion rate and good sterilization , the effect of high scale inhibition rate

Active Publication Date: 2017-04-26
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the defects that phosphorus-containing components need to be used in the process of using existing water treatment agents to treat circulating cooling water, or the water treatment effect obtained without using phosphorus-containing components is poor, and to provide a Phosphorus-free water treatment agent composition and its application

Method used

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  • A kind of phosphorus-free water treatment agent composition and its application
  • A kind of phosphorus-free water treatment agent composition and its application
  • A kind of phosphorus-free water treatment agent composition and its application

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Embodiment approach

[0021]According to a preferred embodiment of the present invention, the water treatment chemical composition does not contain phosphorus, that is, the water treatment chemical composition does not contain conventional phosphorus-based corrosion inhibitors and / or phosphorus-based corrosion and scale inhibitors. In this preferred embodiment, the water treatment chemical composition can not only achieve better scale inhibition, corrosion inhibition and bactericidal effects, but also avoid the traditional water treatment chemical that uses a large amount of phosphorus-containing medicines as scale and corrosion inhibitors. Defects that cause environmental pollution.

[0022] The present invention also provides the application of the above-mentioned phosphorus-free water treatment agent composition in the water treatment process.

[0023] In the above application process, the water suitable for the treatment of the phosphorus-free water treatment agent composition can be various co...

Embodiment 1

[0063] Preparation of water treatment agent: At room temperature, 2.0 g of metalaxyl was first dissolved in 5 mL of ethanol, and then together with 19 g of sodium tetraborate decahydrate and 13.4 g of AA / AM / AMPS copolymer with a solid content of 30 wt% Dissolve in deionized water, stir evenly, and prepare 100 g of water treatment agent A1.

Embodiment 2

[0065] Preparation of water treatment agent: At room temperature, 4 g of metalaxyl was first dissolved in 5 mL of ethanol, and then dissolved in deionized water together with 25 g of sodium gluconate and 15.1 g of AA / AMPS copolymer with a solid content of 30% by weight , stir evenly, and prepare 100g of water treatment agent A2.

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Abstract

The invention discloses a phosphorus-free water treatment agent composition. The composition contains a benzamide bactericide, a sulfonic group-containing phosphorus-free copolymer and a corrosion inhibitor, and the corrosion inhibitor can be one or more of borate, gluconate and silicate. The invention also discloses an application of the phosphorus-free water treatment agent composition in water treatment. A result of evaluation of the scale inhibition, corrosion inhibition and sterilization performances of the phosphorus-free water treatment agent composition in water treatment shows that the phosphorus-free water treatment agent composition has high calcium carbonate scale inhibition rate, high zinc scale inhibition rate, high sterilization rate and low carbon steel sheet corrosion rate on the premise that no phosphorus treatment agents are contained. The phosphorus-free water treatment agent has the advantages of environmental protection and excellent water treatment effect.

Description

technical field [0001] The invention relates to a phosphorus-free water treatment agent composition and the application of the composition in the treatment of circulating cooling water. Background technique [0002] In the circulating cooling water system, there are mainly three problems of scaling, corrosion and microbial damage. The most convenient and effective way to prevent system scaling and corrosion is to add corrosion and scale inhibitor in circulating cooling water. At present, the formulas commonly used in circulating cooling water treatment in China are mostly phosphine formulas, mainly containing phosphonic acid groups (—PO 3 H 2 ) Corrosion and scale inhibitors directly linked to carbon atoms, often referred to as organic phosphonic acids. Compared with the inorganic polyphosphates in the early phosphorus formulations, organic phosphonic acids have the advantages of good chemical stability, not easy to hydrolyze, high temperature resistance, small dosage, et...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F5/12
CPCC02F5/08C02F5/12C02F2303/04C02F2303/08C02F2303/22
Inventor 郦和生冯婕胡艳华王岽
Owner CHINA PETROLEUM & CHEM CORP
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