Seawater desalinizing scale inhibitor and preparation method thereof

Abstract

The invention discloses a seawater desalinizing scale inhibitor and a preparation method thereof. The seawater desalinizing scale inhibitor comprises the following raw materials: trisodium phosphate,amino sanya methylphosphonic acid, polyaspartic acid, benzotriazole, water, chitosan, zinc borate, water-soluble copper sulfide, gluconic acid, sodium hypophosphite, alkenyl glyceroether, diacetylmonoxime, itaconic acid, hydroxyethyl diphosphonic acid and 2-enzothiazole; the product is mainly applied to seawater desalinization, has high calcium tolerance and high scale-inhibiting dispersibility, is antibacterial and bacteriostatic, avoids environmental pollution and has corrosion inhibition rate being 97 to 99.9 percent; the product also can be applied to submarine oil field return water and oil conveying pipelines, can prevent metal ions, particularly barium and strontium ions from forming scale, has the pH value of 7 to 9 and has environmental friendliness; and the scale inhibitor has small use amount, operation concentration of 5 to 25*10<-6> and durable effect, has the scale-inhibiting effect of 98 to 99 percent after being placed for one month at 50 to 60 DEG C, has high temperature resistance, scale-inhibiting stability and corrosion-inhibiting property, and avoids discharge of three wastes in the synthesis process.

Description

technical field [0001] The application belongs to the technical field of ring reagents, and in particular relates to an environment-friendly seawater desalination scale inhibitor with good corrosion inhibition performance and a preparation method thereof. Background technique [0002] Scale inhibitor: It is a class of agents that can disperse insoluble inorganic salts in water, prevent or interfere with the precipitation and scaling of insoluble inorganic salts on metal surfaces, and maintain good heat transfer effects on metal equipment . [0003] Scale inhibitors can remove scale and prevent the formation of scale, improve heat exchange efficiency, reduce electric energy or reduce fuel consumption; water treatment can also reduce sewage discharge, improve water utilization, and generally save more than 60%, which is in line with my country's energy saving and emission reduction new policy. [0004] Reverse osmosis antiscalant is a scale inhibitor specially used in rever...

AI Technical Summary

Problems solved by technology

[0010] In view of the above technical problems, the present application provides a seawater desalination scale inhibitor and its preparation method, which solves the technical problems of existing water treatment scale inhibitors such as high cost, environmental protection, poor scale inhibition dispersibility and poor corrosion inhibition performance.