Environment-friendly multifunctional water treatment agent for circulation cooling water and preparation method of water treatment agent

Abstract

The invention provides an environment-friendly multifunctional water treatment agent for circulation cooling water and a preparation method of the water treatment agent. The environmentally-friendly multifunctional water treatment agent is composed of PPG-MA / AA (copolymer of monomer of maleic anhydride ring-opening esterified polypropylene glycol and acrylic acid), polyacrylic acid, sodium hydroxide and pure water, wherein the mass ratio of the PPG-MA / AA, polyacrylic acid, sodium hydroxide and pure water is (5-25):(5-15):(1-15):(35-75). The multifunctional water treatment agent has stable performance under the application conditions of high-temperature high-hardness circulation water, has excellent effects of resisting CaCO3, CaSO4 and BaSO4, has a significant effect of dispersing iron pollution, and can be widely applied to treatment of the high-temperature high-hardness circulation water and conventional water and other fields. The multifunctional water treatment agent has the characteristics that the water treatment agent is obtained by compounding the following components: in percent by mass, 5-25% of PPG-MA / AA, 5-15% of polyacrylic acid, 1-15% of sodium hydroxide, 35-75% of pure water, and the product has the appearance of pale yellow liquid and a density of 1.1+ / -0.05.

Description

technical field

[0001] The invention relates to the field of circulating water treatment agents, relates to a circulating water treatment agent and a preparation method thereof, and is a water treatment agent suitable for circulating water systems, especially suitable for use in circulating cooling water systems under high temperature and high hardness. Background technique

[0002] In order to maintain a certain temperature for the reactor reaction in the industry, cooling water is generally used to cool down the exothermic reaction. The use of cooling water in industrial water accounts for more than 70%. With the shortage of fresh water resources, the industry begins to use circulating cooling water. Generally, cooling water will be recycled 3 to 6 times. With the repeated use of cooling water, the cooling water Inorganic salt ions will form scale at high temperature, and the generated inorganic scale is generally calcium carbonate, calcium sulfate, barium sulfate, etc. On...