Modified scaling inhibitor and method for preparing same

Abstract

The invention discloses a modified scaling inhibitor. The scaling inhibitor is prepared by usingthe following raw materials in parts by weight: 50 to 80 parts of polyaspartic acid, 30 to 50 parts of polyepoxysuccinic acid, 8 to 10 parts of sodium gluconate, 5 to 10 parts of glycerol, 20 to 30 parts of ethanol, 0 to 15 parts of acidity regulator, 0 to 15 parts of alkalinity regulator, 5 to 8 parts of benzotriazole, 5 to 10 parts of zinc sulfate, 20 to 30 parts of modifier, 10 to 20 parts of assistant and 70 to 90 parts of water. In the modified scaling inhibitor, by compounding and proportioning polyepoxysuccinic acid and polyaspartic acid, the amount of used polyepoxysuccinic acid is reduced, the production cost is decreased, the application scope is widened, the comprehensive performance is improved, the proportioning of zinc sulfate and sodium gluconate improves the stability of water quality and can maintain the high corrosion-inhibiting rate under high-temperature conditions, the steps of the method for preparing the modified scaling inhibitor are simple, the time is saved and the performance of the prepared modified scaling inhibitor is excellent.

Description

technical field [0001] The invention relates to the technical field of water treatment agents, in particular to a modified scale inhibitor and a preparation method thereof. Background technique [0002] The circulating water is continuously circulated during use, and the minerals in the water are constantly increasing, causing scaling and corrosion of equipment and pipelines. Dirt not only affects the heat transfer efficiency, but also produces corrosion under the scale. Therefore, anti-scaling of circulating water is very important. Generally, chemical agents that can prevent the generation of scale and dirt or inhibit their deposition and growth are collectively referred to as scale inhibitors. Commonly used scale inhibitors are mainly corrosion inhibitors and dispersants. At present, most antiscalants use phosphorus-based formulas, the most of which are organic polyphosphoric acid. Scale inhibitors are mainly water-soluble polymers with medium and low molecular weight...

AI Technical Summary

Problems solved by technology

Scale inhibitors have many advantages, but it is usually difficult to use one agent to solve all the problems. It is necessary to modify the compound ratio of scale inhibitors to achieve the best effect