Acidizing corrosion inhibitor used in self-diverting acid system as well as preparation method and application thereof
A technology of acidifying corrosion inhibitor and diverting acid, which is applied in chemical instruments and methods, mining fluids, earth drilling and mining, etc. It can solve the problems of steel surface corrosion, poor long-term performance, environmental pollution, etc., and achieve the effect of strong high temperature resistance
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[0017] The present invention will be further described in detail below in conjunction with specific embodiments.
[0018] An acidification corrosion inhibitor used in a steering acid system. The corrosion inhibitor is composed of a main corrosion inhibitor, a corrosion inhibitor synergist, a cosolvent and a solvent.
[0019] In this embodiment, the main agent of the corrosion inhibitor is cyclohexanone, aniline and paraformaldehyde.
[0020] In this embodiment, the corrosion inhibitor synergist is propynol.
[0021] In this embodiment, the co-solvent is isopropanol, formamide and flat.
[0022] In this embodiment, the solvent is methanol.
[0023] A preparation method of an acidification corrosion inhibitor used in a steering acid system includes the following steps:
[0024] Step 1. React cyclohexanone, aniline and paraformaldehyde at a molar mass of 1:1:1 at 110°C for 8 hours to obtain a reddish-brown transparent liquid, which is the main agent of the corrosion inhibitor;
[0025] Step 2...
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