Descaling agent and preparation method thereof

Abstract

The invention discloses a descaling agent and a preparation method thereof. The descaling agent comprises the following components in parts by weight: 50-70 parts of sulfuric acid, 20-40 parts of naphthalic acid, 25-65 parts of N-ethylethanolamine, 80-110 parts of water, 15-35 parts of sorbitan mono-oleic acid ester, 40-80 parts of methyl isobutyl ketone, 45-65 parts of 3-phenyl propionaldehyde, and 3-9 parts of auxiliaries. The preparation method comprises the following steps: all the components are uniformly stirred; sorbitan mono-oleic acid ester, auxiliaries and 3-phenyl propionaldehyde are added in sequence for uniform mixing; and finally, methyl isobutyl ketone is added. The descaling agent is strong in descaling capacity, and can quickly remove rust scales.

Description

technical field [0001] The invention relates to a descaling agent and a preparation method thereof. Background technique [0002] Descaling and antirust agents are often used in daily life and industrial production, that is, chemicals or reagents used for the purpose of descaling and rust prevention. Traditional chemical rust removal usually uses strong acid, which can chemically react with rust and metal oxides to generate soluble salts, so as to achieve the purpose of rust removal. At the same time of rust removal, acid can react with base metal to release hydrogen, hydrogen It can generate pressure on rust and insoluble scale, which is beneficial to their peeling and reduction of high-valent iron, and accelerates the pickling process, but the traditional acid treatment method also has obvious defects: that is, the large amount of hydrogen gas in the process The occurrence of hydrogen embrittlement will cause the steel to have hydrogen embrittlement, which will cause ...

AI Technical Summary

Problems solved by technology

Traditional chemical rust removal usually uses strong acid, which can chemically react with rust and metal oxides to generate soluble salts, so as to achieve the purpose of rust removal. At the same time of rust removal, acid can react with base metal to release hydrogen, hydrogen It can generate pressure on rust and insoluble scale, which is beneficial to their peeling and reduction of high-valent iron, and accelerates the pickling process, but the traditional acid treatment method also has obvious defects: that is, the large amount of hydrogen gas in the process The occurrence of hydrogen embrittlement will cause the steel to have hydrogen embrittlement, which will cause the mechanical properties of the metal to decline and affect the strength of the steel itself; at the same time, it is easy to form acid mist, which will affect the health of the operator and corrode the surrounding equipment and environment; the consumption of acid is also large. Increases disposal costs; these acids can over-corrode steel

In addition, the residues produced in large quantities need to be discharged frequently, which not only seriously corrodes industrial pipelines, but also pollutes the soil and the environment.