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Environment protecting type compound water treatment agent

A water treatment agent, an environmentally friendly technology, applied in the field of industrial circulating water treatment agents, can solve the problems of water eutrophication, high toxicity, high cost, low corrosion inhibition rate, etc., and achieve excellent corrosion and scale inhibition effects

Inactive Publication Date: 2006-01-25
SHANGHAI EMPEROR OF CLEANING HI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to study a safe and environmentally friendly compound water treatment agent formula, which can not only overcome the shortcomings of water body eutrophication and high toxicity caused by phosphorus-based, chromium-based, nitrite-based water treatment agents, but also overcome The disadvantages of low corrosion inhibition rate and high cost in the above-mentioned known technologies, the green environment-friendly scale inhibitor dispersant and corrosion inhibitor are compounded, and the synergistic effect of each component is fully utilized to form a corrosion inhibitor and scale inhibitor. Functional multifunctional safe and environment-friendly water treatment agent

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Put 4mg of polyaspartic acid, 1mg of ECH rare earth material, 10mg of sodium molybdate, 1mg of benzotriazole, 2mg of zinc sulfate and 1L of deionized water in a stirring container and mix evenly, which is the normal water treatment agent of the present invention. The corrosion inhibition rate was measured to be 98.5% when tested by the weight loss method of rotating coupons.

Embodiment 2

[0034] Put 4mg of polyaspartic acid, 1mg of ECH rare earth material, 10mg of sodium molybdate, mg of benzotriazole, 2mg of zinc sulfate and 1L of water into a stirring container and mix evenly, which is the normal water treatment agent of the present invention. Experimental water quality: Ca 2+ (CaCO 3 Total) 500mg / l, HCO 3 - (as CaCO 3 In total) 50mg / l. In a temperature-controlled water bath, 80°C ± 2°C. Constant temperature for 25 hours. The measured scale inhibition rate is 98.3%

Embodiment 3

[0036] Put 100mg of polyaspartic acid, 5mg of ECH rare earth material, 200mg of sodium molybdate, 5mg of benzotriazole, 3mg of zinc sulfate and 1 liter of water in a stirring container and mix them evenly to obtain the pre-film water treatment agent of the present invention. Pre-film for about 48 hours, then dilute and transfer to normal treatment, maintain polyaspartic acid 4mg / L, 5mg / LCH rare earth material, 200mg / L sodium molybdate, 350mg / L ethylenediaminetetraacetic acid, 5mg / L benzene in water And triazole, 3mg / L zinc sulfate, you can get the good anti-corrosion and anti-scaling maintenance effect of the pre-coating.

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Abstract

An environment protection type composite water-treating agent is prepared from poly-aspartic acid, RE material ECH, molybdate, benzotriazazole and Zn salt. Its advantages are low corrosion, poison and nutrition, and high safety.

Description

technical field [0001] The invention relates to an industrial circulating water treatment agent, in particular to a composite water treatment agent which is safe, non-toxic, environment-friendly and has the function of inhibiting corrosion and scale. Background technique [0002] In the current industrial circulating water treatment agent technology, most of the widely used water treatment agents are phosphorus water treatment agents, chromium series, nitrite and other series of water treatment agents. Phosphate-based water treatment agents will lead to eutrophication of water bodies, causing bacteria and algae to multiply and environmental pollution; although chromate, nitrite, etc. are low in cost, they are highly toxic, and the environmental protection department has strict regulations on the discharge of these substances. Require. In addition, the above-mentioned water treatment agents can only play a single role of scale inhibition or single corrosion inhibition. In 1...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F5/10C02F5/12
Inventor 王炜梅庆慧
Owner SHANGHAI EMPEROR OF CLEANING HI TECH
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