A kind of corrosion inhibitor composition and preparation method thereof

Abstract

The invention relates to a novel corrosion inhibitor composition and a preparation method thereof. The corrosion inhibitor composition comprises hydrogen-containing polydimethylsiloxane, a benzotriazole derivative, an alkaline catalyst and a solvent. The preparation method of the corrosion inhibitor composition comprises the following steps: under nitrogen protection and continuous stirring conditions, adding the hydrogen-containing polydimethylsiloxane into the solvent, heating up to 75-80 DEG C, continuing to heat up to 90-100 DEG C after the hydrogen-containing polydimethylsiloxane is dispersed uniformly, adding the benzotriazole derivative and the alkaline catalyst after the temperature is stable, fully reacting for 1-8 hours, removing the solvent from the reaction mixture, and filtering to obtain the product, namely the corrosion inhibitor composition. Compared with the prior art, the corrosion inhibitor product provided by the invention has a higher applicable temperature, stronger film forming stability, low use amount and good continuous corrosion resistance, and is a novel and efficient metal surface corrosion inhibitor.

Description

technical field

[0001] The invention relates to a corrosion inhibitor composition and a preparation method thereof, in particular to a novel corrosion inhibitor composition capable of effectively inhibiting the surface corrosion of a metal member in contact with a flowing corrosive medium and a preparation method thereof, belonging to metal corrosion field of protection. Background technique

[0002] In recent years, crude oil has gradually become heavier and inferior, while petroleum products are constantly required to be lighter and cleaner, which increases the difficulty of crude oil processing, and the corrosion problem in the production process is also particularly serious, especially in the refining process. Sexual substances pose a serious threat to production safety. Countries have always attached great importance to corrosion problems. As a kind of anti-corrosion chemical, corrosion inhibitor exists in the medium in appropriate concentration and form, which can pr...