Nitrogenous heterocyclic quaternary ammonium salt acidizing corrosion inhibitor and preparation method thereof
A technology of acidifying corrosion inhibitor and quaternary ammonium salt, which is applied in the field of metal anti-corrosion, can solve the problems of insufficient stability of dissolution and dispersion, high corrosion speed of oil pipe steel, and large addition of corrosion inhibitor, so as to be suitable for large-scale industrial production and application, low corrosion rate, and less harsh synthesis conditions
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Example Embodiment
[0023] Example 1
[0024] Benzyl chloride and the fraction above 180°C from the industrial synthesis pyridine kettle under normal pressure were added to the reaction kettle at a weight ratio of 1:1, and reacted at 160°C for 4 hours to prepare chlorinated N-benzyl-R-pyridine Quaternary ammonium salt; prepared N-benzyl-R pyridine quaternary ammonium salt, propynyl alcohol, formaldehyde, potassium iodide, antimony trichloride, O-15, methanol in a weight ratio of 40:5:5:1:15: 15:19, after stirring evenly, corrosion inhibitor A is obtained.
Example Embodiment
[0025] Example 2
[0026] Benzyl chloride and industrial quinoline were added to the reactor at a weight ratio of 1:1, and reacted at 160°C for 4 hours to prepare N-benzyl-R-quinoline quaternary ammonium chloride; the prepared N chloride -Benzyl-R-quinoline quaternary ammonium salt, propynol, formaldehyde, potassium iodide, antimony trioxide, O-15, methanol in a weight ratio of 40:5:5:1:15:15:19, stir well Then the corrosion inhibitor B is obtained.
Example Embodiment
[0027] Example 3
[0028] Take the N-benzyl-R pyridine quaternary ammonium chloride and N-benzyl-R-quinoline quaternary ammonium chloride prepared in Example 1 and Example 2; N-benzyl-R-pyridine quaternary ammonium chloride Ammonium salt (prepared in Example 1), N-benzyl-R-quinoline quaternary ammonium chloride (prepared in Example 2), propynol, formaldehyde, potassium iodide, antimony trioxide, O-15, methanol by weight The ratio is 20:20:5:5:1:15:15:19, and the corrosion inhibitor C is obtained after uniform stirring.
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.
© 2023 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap