Novel binary compound anti-scaling agent

Abstract

The invention discloses a novel binary compound anti-scaling agent, which is prepared by mixing polymaleic anhydride-acrylic acid-methyl acrylate and ethylenediamine tetraacetic acid in the mass ratio of 4:5-7:5. The novel binary compound anti-scaling agent is prepared by mixing polymaleic anhydride-acrylic acid-methyl acrylate and ethylenediamine tetraacetic acid, is excellent in the scale-removing performance, is greatly superior to the conventional anti-scaling agent in the scale-removing rate when being applied to scale removal, and is low in manufacturing cost. The scale-removing cost is reduced greatly.

Description

technical field [0001] The invention relates to a novel binary compound antifouling agent. Background technique [0002] Descaling agent is a chemical preparation that removes scale, dirt and other stains, and is generally composed of multiple components. Industrial descaling agents are mainly used to remove dirt in heat exchange equipment, boilers, etc. [0003] Common types of descaling agents and their characteristics: [0004] (1) Inorganic polyphosphate. This type is the earliest descaling agent used, and its use has been restricted abroad. There are one or more repeated P-O-P bonds in its molecule, which can be divided into chain polyphosphate and cyclic polyphosphate. The disadvantage of inorganic polyphosphate is that it is easy to be hydrolyzed by moisture to form orthophosphate, especially at high temperature and high pH value, and it will react with divalent cations such as Ca2+, Mg2+, etc. to scale. [0005] (2) Organic phosphates. Common organic phosphates...

AI Technical Summary

Problems solved by technology

This kind of descaling agent mainly prevents scale through chelation, so the amount added is large and the cost is high, so its use is limited in industrial processes with large amounts of water

Images