Antiscale dispersant

Abstract

The invention provides an antiscale dispersant which is prepared from the following components in parts by weight: 15-30 parts of PAPEMP, 15-30 parts of acrylic acid-citrate-sodium p-styrenesulfonatecopolymer, 4-8 parts of sodium salicylate, 8-12 parts of polycarboxylic acids compounds, 4-8 parts of zinc sulfate and 40-60 parts of water. The antiscale dispersant has the advantages of less dosage,high antiscale dispersion rate and environmental protection.

Description

technical field [0001] The invention belongs to the technical field of water treatment, and in particular relates to a scale inhibitor dispersant. Background technique [0002] Many domestic chemical plants or power plants have the problem of pipeline scaling when dealing with gray water, which not only hinders pipeline transportation, but also has a certain corrosion damage to pipelines. At present, the main method for dealing with scale inhibition is pickling. The main problems of pickling are: first, the discharged sewage cannot meet the standard and pollute the environment. Second, this method also has a certain corrosion effect on the pipeline. Another cleaning method is the mechanical cleaning method. The cleaning knife in the pipeline runs at a high speed under the action of water to forcefully remove the scale and scale. Because the thickness of calcium carbonate in the pipeline is different, the section is uneven. Cleaning knife It is easy to jam the knife in the ...

AI Technical Summary

Problems solved by technology

At present, the main method to deal with scale inhibition is pickling method. The main problems of pickling method are: first, the discharged sewage cannot meet the standard and pollute the environment.

Second, this method also has a certain corrosive effect on the pipeline

Another cleaning method is the mechanical cleaning method. The cleaning knife in the pipeline runs at a high speed under the action of water to forcefully remove the scale and scale. Because the thickness of calcium carbonate in the pipeline is different, the section is uneven. Cleaning knife It is easy to jam the knife in the pipeline, and the cut pieces are easy to block the pipeline, so this method is not very acceptable

And above-mentioned two kinds of methods are expensive, the scope of application is not very extensive

At present, the hottest research is scale inhibitors and dispersants. Phosphorus scale inhibitors have good scale inhibition effect on calcium carbonate, but some commonly used small molecule phosphorus scale inhibitors are easy to decompose in water, resulting in secondary precipitation product calcium phosphate , not only the scale has a certain impact on the pipeline, but also pollutes the environment. Therefore, an environmentally friendly and efficient scale inhibitor dispersant is urgently needed to solve the problem of scale formation in chemical equipment pipelines in the existing water treatment field.

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