Scaling corrosion inhibitor and preparation method thereof

Abstract

The invention provides a scaling corrosion inhibitor and a preparation method thereof, and relates to the technical field of a water treatment chemical. The scaling corrosion inhibitor is prepared from the following raw materials of 2-phosphono-butane-1,2,4-tricarboxylic acid (PBTCA), 2-hydroxyphosphonoacetic acid (HPAA), acrylate copolymers (HB-901), polyaspartic acid (PASP) and a foam discharging agent according to the matter quantity ratio of (2 to 3):(2 to 3) :(5 to 8) :(10 to 15) :(5 to 8). The preparation method of the scaling corrosion inhibitor comprises the steps of 1, mixing the materials to obtain a mixed solution; 2, preparing the foam discharging agent; 3, adding the mixed solution into a polyaspartic acid water solution; performing reaction for 50 to 60 minutes; adding the foam discharging agent; performing stirring for 5 to 6 hours at 40 to 50 DEG C; preparing the scaling corrosion inhibitor. The scaling corrosion inhibitor belongs to a scaling corrosion inhibitor for preventing corrosion of the pipeline and equipment; the dual efficacies of scale inhibition and corrosion inhibition are achieved; the scaling corrosion inhibitor is a complex reagent; certain biodegradability is realized; green and environment-friendly effects are achieved; the application range is wide.

Description

technical field [0001] The invention relates to the technical field of water treatment chemicals, in particular to a scale and corrosion inhibitor and a preparation method thereof. Background technique [0002] In some cooling equipment (such as cooling towers, air coolers, etc.), heat exchange equipment (such as heat exchangers, condensers), water pumps and pipelines, etc., water is used as the cooling medium and recycled, while industrial cooling water is In the process of recycling, due to the increase of water temperature and concentration ratio, the content of microorganisms, phosphate, bicarbonate, calcium ions and dissolved oxygen will increase greatly, so the stability of calcium carbonate scale will increase, thus Scaling occurs. In addition, due to the release of inorganic scale, mucus, sediment, etc. during the activity of microorganisms, the deposits adhere to the metal surface to form an oxygen concentration battery, which promotes the corrosion of metal materi...

AI Technical Summary

Problems solved by technology

In circulating cooling water, the compounding and coordinating effect of corrosion inhibitors and scale inhibitors is very important. If several scale inhibitors and corrosion inhibitors are simply compounded together, it may cause new problems, not only causing production It is a waste of data, and it is easy to reduce the efficacy of the medicine, or even completely lose it

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