Acid-mist-free contamination removal and oil removal metal rust remover

Abstract

The invention belongs to the technical field of chemical engineering, and particularly relates to an acid-mist-free contamination removal and oil removal metal rust remover. The acid-mist-free contamination removal and oil removal metal rust remover is mainly characterized in that the formula of an existing hydrochloric acid metal rust remover is greatly modified, and the acid-mist-free contamination removal and oil removal metal rust remover is prepared by phosphoric acid, oleic acid, sulfuric acid, oxalic acid, butyl alcohol, hexamethylenetetramine, triethanolamine, OP-10 and water by a certain weight percent. Compared with the prior art, the acid-mist-free contamination removal and oil removal metal rust remover has the obvious advantages that no acid mist is generated; peculiar smellsare avoided, and use is safe; the purpose is enlarged; rust, oil dirt and water scales can be removed; waste liquid can be recycled; waste emissions are reduced; environment pollution is reduced; andsocial and economic benefits are good.

Description

technical field [0001] The invention belongs to the technical field of chemical industry and relates to a metal derusting agent, in particular to an acid mist-free decontamination and degreasing metal derusting agent. Background technique [0002] Since the surface of steel and parts is easy to rust under outdoor conditions, if the rust is not removed in time, it will affect the appearance and processing procedures, and even cause scrapping, resulting in unnecessary economic losses. [0003] The existing pickling derusting method uses hydrochloric acid as the main derusting agent. Although it has been widely promoted in the production field, the existing hydrochloric acid derusting agent has obvious defects: in the derusting process of the hydrochloric acid solution, it cannot take into account the derusting process. Surface mud and oil stains; it will cause over-corrosion to the steel, and the released hydrogen will cause "hydrogen embrittlement" of the steel, resulting in ...

AI Technical Summary

Problems solved by technology

[0002] Since the surface of steel and parts is easy to rust under outdoor conditions, if the rust is not removed in time, it will affect the appearance and processing procedures, and even cause scrapping, resulting in unnecessary economic losses

[0003] The existing pickling derusting method uses hydrochloric acid as the main derusting agent. Although it has been widely promoted in the production field, the existing hydrochloric acid derusting agent has obvious defects: in the derusting process of the hydrochloric acid solution, it cannot take into account the derusting process. Surface mud and oil stains; it will cause over-corrosion to the steel, and the released hydrogen will cause "hydrogen embrittlement" of the steel, resulting in a decrease in the performance of the steel and a decrease in the strength of the steel itself; the formed acid mist is harmful to the health of the operator and the surrounding environment Bring adverse effects; the waste liquid after pickling is not used, if it is discharged directly, it will corrode the pipeline and pollute the water and soil environment, such as harmless treatment, the process is complicated and the investment is large