Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A kind of imidazolium salt ionic liquid acidifying corrosion inhibitor and preparation method and application thereof

A technology of ionic liquids and imidazolium salts, applied in chemical instruments and methods, organic chemistry, drilling compositions, etc., can solve problems such as no reports

Inactive Publication Date: 2016-01-13
SHANDONG UNIV
View PDF3 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The reported imidazolium salt ionic liquid has excellent corrosion inhibition performance as steel corrosion inhibitor at low temperature (<50°C), but the performance of corrosion inhibitor at high temperature above 50°C has not been reported

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of imidazolium salt ionic liquid acidifying corrosion inhibitor and preparation method and application thereof
  • A kind of imidazolium salt ionic liquid acidifying corrosion inhibitor and preparation method and application thereof
  • A kind of imidazolium salt ionic liquid acidifying corrosion inhibitor and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Embodiment 1: the preparation method of 1-dodecyl-3-methylimidazolium bromide salt ionic liquid

[0033] Add 0.82g of N-methylimidazole and 2.5g of n-dodecane bromide into a 100mL autoclave, add 28g of ethyl acetate solvent, seal the autoclave, put it in a constant temperature box, and react at 130°C for 10h , to obtain a crude product, which was washed and purified with toluene to obtain 1-dodecyl-3-methylimidazolium bromide ionic liquid.

Embodiment 2

[0034] Embodiment 2: the preparation method of 1-tetradecyl-3-methylimidazolium bromide salt ionic liquid

[0035] Add 0.82g of N-methylimidazole and 3.6g of n-tetradecane bromide into a 100mL autoclave, add 30g of ethyl acetate solvent, seal the autoclave, put it in a constant temperature box, and react at 130°C for 10h , to obtain a crude product, which was washed and purified with toluene to obtain 1-tetradecyl-3-methylimidazolium bromide ionic liquid.

Embodiment 3

[0036] Embodiment 3: the preparation method of 1-hexadecyl-3-methylimidazolium bromide salt ionic liquid

[0037] Add 0.82g of N-methylimidazole and 4.4g of n-tetradecane bromide into a 100mL autoclave, add 30g of ethyl acetate solvent, seal the autoclave, put it in a constant temperature box, and react at 130°C for 16h , to obtain a crude product, which was washed and purified with toluene to obtain 1-hexadecyl-3-methylimidazolium bromide ionic liquid.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to an imidazolium salt ionic liquid acidizing corrosion inhibitor as well as a preparation method and application thereof. The imidazolium salt ionic liquid corrosion inhibitor is a compound with the structure of a general formula I. The preparation method comprises steps of firstly synthesizing a N-alkyl imidazole intermediate through imidazole and bromo-n-alkane, and carrying out reaction on the N-alkyl imidazole intermediate and the bromo-n-alkane so as to prepare the imidazolium salt ionic liquid corrosion inhibitor. The imidazolium salt ionic liquid which is taken as the acidizing corrosion inhibitor is used in oil well acidization at the temperature more than or equal to 60 DEG C, so as to prevent acid liquor from corroding pipelines, metallic equipment and down-hole pipe columns.

Description

technical field [0001] The invention relates to an imidazolium salt ionic liquid acidification corrosion inhibitor and its preparation method and application, belonging to the technical field of oilfield chemical corrosion inhibitors. Background technique [0002] As an economical and efficient anti-corrosion method, corrosion inhibitor plays an important role in protecting resources and reducing material loss. In recent years, based on the needs of environmental protection and sustainable development strategies, environmentally friendly corrosion inhibitors have become an important direction for the development of corrosion inhibitors in the future. Most of the existing corrosion inhibitors have toxic and side effects, which pose great harm to operators and the ecological environment during production and use, and do not meet the development requirements of today's green chemistry. Ionic liquids have almost no vapor pressure, non-volatile, colorless, and odorless; they hav...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C09K8/74C07D233/58
CPCC07D233/58C09K8/74C09K2208/32
Inventor 周洪涛郑利强贾寒刘源刘雪辉
Owner SHANDONG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com