Composition for cleanser, cleanser and application thereof

Abstract

The invention belongs to the technical field of fine chemical engineering, particularly relates to a composition for a cleanser and application thereof in cleaning water scales and rusty scales on various commercial unit surfaces, and discloses a composition for a cleanser and application thereof. The composition for a cleanser contains the following components in parts by weight: 1 part of organic phosphonate, 0.15-1.5 parts of dispersant, 0.02-0.75 part of reducer, 0.02-0.75 part of wetting agent and 0.002-0.075 part of corrosion inhibitor. The composition disclosed by the invention satisfies the requirements for environmental protection, and is suitable for cleaning water scales and rusty scales on various metal surfaces, such as carbon steel, stainless steel, brass, red copper, aluminum and the like. The composition has the advantages of thorough scale removal and favorable corrosion inhibition property, does not need special passivating treatment after cleaning, and can be directly put into normal operation, so that the whole cleaning process is simpler and easy for popularization.

Description

technical field [0001] The present invention relates to a composition for cleaning agent, cleaning agent and application thereof, in particular to a composition for cleaning agent and its application in cleaning scale and rust on the surfaces of various industrial equipment. Background technique [0002] Chemical cleaning is widely used in various industrial sectors (such as electric power, petrochemical, metallurgy and electronics, etc.) in heat exchange equipment, heat transfer equipment, cooling equipment, rolling scales and oxide layers of steel and other metal materials. Cleaning of metal scale. Chemical cleaning of thermal equipment (such as boilers) and chemical equipment in the power sector is particularly important. From a socio-economic point of view, chemical cleaning can reduce fuel consumption due to dirt; from an environmental point of view, it reduces fuel exhaust and air pollution; from a safety point of view, thermal equipment such as boilers and heat excha...

AI Technical Summary

Problems solved by technology

[0004] 1) A large amount of gas is generated during the pickling process, resulting in excessive system pressure and damage;

[0005] 2) Pickling will cause corrosion of some equipment, and a large number of shedding lumps will be produced during the pickling process, which will block the system in severe cases;

[0006] 3) The waste liquid after pickling does not meet the requirements of environmental protection, and the post-processing is difficult;

[0007] 4) The cost of pickling is high

The disadvantage is that it can only be used to remove mixed limescale

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