Novel water treatment agent and preparation method thereof

Abstract

The invention discloses a novel water treatment agent. The water treatment agent comprises the following components by mass percent: 20 to 25% of polyaspartic acid, 15 to 20% of 2-phosphonic-1, 2, 4 tri-carboxyl butane, 7 to 9% of heptahydrate, 1 to 2% of benzotriazole, and the balance of water. The novel water treatment agent is formed by the compounding of polyaspartic acid, 2-phosphonic-1, 2, 4 tri-carboxyl butane, heptahydrate, benzotriazole and water in a specific proportion; all the materials are synergistically interacted with each other, so that the corrosion inhibition and scale inhibition capability of the water treatment agent can be improved obviously; the water treatment agent is suitable for a cooling water system with high alkalinity, high hardness and high pH (Potential of Hydrogen) and can realize the operation in high cycles of concentration; in addition, non-phosphorus or low-phosphorous raw materials are adopted, which are harmfulless and easy for biodegradation, so that the green and environmental protection can be realized. The invention also discloses a preparation method of the water treatment agent; the water treatment agent prepared by the method can be stored stably for a long term.

Description

technical field [0001] The invention relates to a water treatment agent and a preparation method thereof, in particular to an efficient, multifunctional, green and environment-friendly water treatment agent and a preparation method thereof. Background technique [0002] In industrial circulating cooling water, chemicals added to control the hazards of scaling, corrosion, and biological slime are called water treatment agents. In the early stage of water treatment technology development, inorganic compounds, such as phosphate, chlorine, lime, etc., were generally added as water treatment agents, but the water treatment effect was limited to a certain extent. Later, it was developed to use pure natural organic compounds such as tannin, starch, lignin as water treatment agent, but because of its large dosage in water treatment application, it is easy to decompose under high temperature and pressure, and its impurity content is high, so it is rarely used. [0003] In the 1970s,...

AI Technical Summary

Problems solved by technology

[0009] CN102718333A discloses a high-efficiency low-phosphorus composite water treatment agent, in which the maleic acid-acrylic acid copolymer is added as an auxiliary scale inhibitor, and it is difficult to achieve the best scale and corrosion inhibition and dispersion effect at the same time

Moreover, the water treatment agent disclosed in this document is compounded by simple stirring and mixing of corrosion inhibitors, scale inhibitors and dispersants, which increases the solid content and increases the difficulty of compounding in production, and the product is not conducive to long-term storage, such as It will deteriorate or crystallize out after two or three months of storage

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