Cleaning fluid with perilla leaf extract as corrosion inhibitor and method

Abstract

The invention relates to cleaning fluid with perilla leaf extract as corrosion inhibitor and a method. The perilla leaf extract serves as the corrosion inhibitor for carbon steel and a product of thecarbon steel in the surface cleaning or acidification process, the source of the perilla leaf extract is abundant, the production technology is simple, extraction conditions are moderate, and energy consumption is low. The product is the natural substance extract and is a green substance which can be biologically degraded and does not poison the human body or the environment. Compared with currentcommon chemically-synthesized organic corrosion inhibitor, influences on the environment are very weak. The product is applied to the surface cleaning or acidification process of the carbon steel andthe product of the carbon steel, and the cleaning fluid with perilla leaf extract as the corrosion inhibitor and the method have the prominent beneficial effects that the usage amount is small, efficiency is high, and the applicable temperature range is wide.

Description

technical field [0001] The invention belongs to the technical field of corrosion inhibitors, and relates to a cleaning solution and a method using perilla leaf extract as a corrosion inhibitor, in particular to a technology using perilla leaf extract as a hydrochloric acid corrosion inhibitor. It can effectively inhibit the corrosion of carbon steel products in hydrochloric acid solution. Background technique [0002] With the continuous development of economy and society, the use of metal materials is increasing, and the corrosion of metal materials is also becoming more and more serious. During the processing and use of steel and its products, it is usually necessary to clean the surface with dilute hydrochloric acid or dilute sulfuric acid to remove the oxide film or corrosion products on the steel surface. , a corrosion inhibitor must be added. Corrosion inhibitors can effectively inhibit the corrosion of metal materials by acidic media and prolong the service life of ...

AI Technical Summary

Problems solved by technology

Inorganic corrosion inhibitors are mainly chromate, nitrate and phosphate, but inorganic corrosion inhibitors are highly toxic, and phosphate can also cause eutrophication of water bodies

Organic corrosion inhibitors are compounds containing N, O, S and other heteroatoms and unsaturated bonds. Compared with inorganic corrosion inhibitors, the dosage is less and the effect is better, but most of them have certain toxic and side effects and do not meet the requirements of environmental protection.