Formula and production process for safe and quick derusting cleaning liquid

Abstract

The invention provides a formula and a production process method for a derusting cleaning liquid used for surface treatment of metal. The formula comprises a first formula and a second formula, wherein the first formula comprises the following components in percentage by weight: 17 to 22 percent of 35-percent hydrochloric acid, 2 to 4 percent of 36-percent acetic acid, 1.5 to 3 percent of glyoxal,0.5 to 1 percent of sodium chloride, 10 to 20 percent of water; and the second formula comprises the following components in percentage by weight: 17 to 22 percent of 35-percent hydrochloric acid, 13to 18 percent of 60-percent formic acid, 1.5 to 3 percent of glyoxal, 0.5 to 1 percent of sodium chloride, 10 to 20 percent of water. The production process comprises the following steps of: adding the glyoxal and the sodium chloride into the acetic acid and the water (or the formic acid and the water) respectively, and evenly stirring the mixing solutions to obtain two types of mixing solutions;and adding the hydrochloric acid into the two types of mixing solutions respectively, and evenly stirring to obtain the finished productions of two types of products. The formula has the advantages of strong derusting ability, high derusting speed, uniform and quick removal of rust and concrete on steel and copper materials, safe and convenient production and use, and low cost.

Description

1. Technical field: [0001] The invention relates to a formula and a manufacturing process of a rust-removing cleaning liquid for metal surface treatment, in particular to a formula and a production process of a fast rust-removing cleaning liquid with good safety 2. Technical background: [0002] The research shows that the iron and steel rust removal and antirust agent technology can be divided into rust removal cleaning liquid, phosphating passivation antirust liquid, multifunctional rust removal and antirust liquid, ultra-low temperature rust removal and antirust multifunctional treatment liquid, high paste rust agent, solid rust remover and other classifications. However, most of them use sulfuric acid, hydrochloric acid, nitric acid and other strong acids, and the mixed acid solution prepared with phosphoric acid and acetic acid has strong corrosiveness, which not only corrodes the skin, damages clothes, is not safe to use, but also pollutes the environment . For examp...

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Problems solved by technology

However, most of them use sulfuric acid, hydrochloric acid, nitric acid and other strong acids, and the mixed acid solution prepared with phosphoric a