Preparation method of efficient scale inhibitor for circulating cooling water system

Abstract

The invention provides a preparation method of an efficient scale inhibitor for a circulating cooling water system, and relates to the field of scale inhibitors, and the preparation method specifically comprises the following steps: preparing an intermediate A; preparing an intermediate B; uniformly mixing and stirring the intermediate A, the intermediate B, a maleic acid-acrylic acid copolymer, inorganic salt and water to obtain a mixed solution; adding methylated-beta-cyclodextrin, and uniformly stirring so as to obtain the scale inhibitor. According to the efficient scale inhibitor preparedthrough the method, the scale inhibition rate of a static scale inhibition experiment reaches 90% or above, the optimal scale inhibition rate of the performance can reach 99.1%, the scale inhibitionrequirement of a circulating cooling water system can be met, and the efficient scale inhibitor has very wide application prospects.

Description

technical field [0001] The invention relates to the field of scale inhibitors, in particular to a preparation method of a high-efficiency scale inhibitor for a circulating cooling water system. Background technique [0002] In the production process of many industrial sectors, a large amount of waste heat is generated, which needs to be transferred to the natural environment with heat transfer medium in time to ensure the normal operation of the production process. Because natural water has excellent heat transfer performance and low cost, and is rich in resources, it is used as a heat transfer medium for industrial waste heat. It is called cooling water in industrial production. Industrial cooling water is the largest user of industrial water in all countries. The physical and chemical properties of the cooling water outside the temperature do not change significantly. If appropriate cooling measures are taken to form a recycling system, it is an important way to save indus...

AI Technical Summary

Problems solved by technology

However, the nutrient enrichment of water quality caused by the extensive use of phosphate scale inhibitors promotes the growth of a large number of bacteria and algae, resulting in large-scale red tides and seriously affecting the ecological environment.

Therefore, phosphate scale inhibitors have been gradually replaced by low-phosphorus and phosphorus-free scale inhibitors such as polymaleic anhydride, polyacrylic acid, polyaspartic acid, and polyepoxysuccinic acid. It has good performance in terms of scale performance, but there are still deficiencies: such as long synthesis time; the product has simple functions, relatively single performance, long use time, and poor reproducibility; some antiscalant agents can’t well meet the environment of industrial circulating cooling water, etc.

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