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

Room temperature ionic liquid based on heteropolyacid anion and preparation method thereof

A technology of heteropolyacid anion and room temperature ionic liquid, which is applied in the field of room temperature ionic liquid and its preparation, and can solve the problems of small quantity and non-liquid state

Active Publication Date: 2017-11-14
HARBIN INST OF TECH
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problems of existing polyoxometalate ionic liquid types, small quantity and non-liquid state at room temperature, and provide a room temperature ionic liquid based on polyoxometalate ions and its preparation method

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
  • Room temperature ionic liquid based on heteropolyacid anion and preparation method thereof
  • Room temperature ionic liquid based on heteropolyacid anion and preparation method thereof
  • Room temperature ionic liquid based on heteropolyacid anion and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0056] Specific embodiment 1: This embodiment is a room temperature ionic liquid based on heteropolyacid anions, which is characterized in that the room temperature ionic liquid based on heteropolyacid anions is composed of Victoria blue B cations and heteropolyacid anions. The mass fraction of Victoria Blue B cation in the room temperature ionic liquid of polyacid anion is 50.9%, and the mol ratio of Victoria Blue B cation and heteropolyacid anion in the room temperature ionic liquid based on heteropolyacid anion is 4:1; The chemical formula of Victoria blue B cation is [C 33 h 32 N 3 ] + ; The chemical formula of the heteropolyacid anion is [α-SiMo 12 o 40 ] 4- .

specific Embodiment approach 2

[0057] Specific implementation mode two: this implementation mode is a kind of preparation method of the room temperature ionic liquid based on heteropolyacid anion, specifically is finished according to the following steps:

[0058] 1. Preparation of [α-SiMo 12 o 40 ] 4- Mixed organic solution of anions: Dissolve sodium molybdate in distilled water, add concentrated nitric acid and sodium silicate aqueous solution with a concentration of 2.03mol / L dropwise under stirring conditions, after the temperature drops to room temperature, add acetonitrile, then condense and reflux for 30 minutes After being cooled to room temperature, the layers were left to stand, and the upper layer solution was collected to obtain the [α-SiMo 12 o 40 ] 4- The mixed organic solution of anion; The quality of described sodium molybdate and the volume ratio of distilled water are 5.5g:30mL; The volume ratio of described distilled water and concentrated nitric acid is 30:7.5; Described distilled wa...

specific Embodiment approach 3

[0065] Specific embodiment three: This embodiment is a room temperature ionic liquid based on heteropolyacid anions, which is composed of Victoria blue B cations and heteropolyacid anions, and the amount of Victoria blue B cations in the room temperature ionic liquid based on heteropolyacid anions The mass fraction is 30% to 60%, and the molar ratio of the Victoria blue B cation to the heteropoly acid anion in the room-temperature ionic liquid based on the heteropolyacid anion is 4:1; the chemical formula of the Victoria blue B cation is [C 33 h 32 N 3 ] + ; The chemical formula of the heteropolyacid anion is [X 2 m 18 o 62 ] 4- , [X 2 m 18 o 62 ] 4- Where X is Si, S or P, and M is W or Mo.

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

PropertyMeasurementUnit
melting pointaaaaaaaaaa
quality scoreaaaaaaaaaa
quality scoreaaaaaaaaaa
Login to View More

Abstract

The invention discloses a room-temperature ionic liquid based on heteropoly acid anions and a preparation method of the room-temperature ionic liquid, relates to the room-temperature ionic liquid and the preparation method thereof, and aims to solve the problems that the variety and the number of conventional polyoxometallate ionic liquids are small and the conventional polyoxometallate ionic liquids are non-liquid at the room temperature. The room-temperature ionic liquid based on the heteropoly acid anions comprises Victoria blue B cations, the heteropoly acid anions and a solvent.; the method comprises steps as follows: step one, preparing a mixed organic solution containing [X2M18O62]<4->, [XM12O40] <4-> or [alpha-SiMo12O40]<4-> anions; step two, preparing a Victoria blue B solution; step three, performing mixing; step four, removing impurities. Or the room-temperature ionic liquid based on the heteropoly acid anions comprises tetraoctyl ammonium bromide cations, the heteropoly acid anions and the solvent; the method comprises steps as follows: Tungstic acid sodium salt dihydrate, acetonitrile and a sulfuric acid solution are adopted as raw materials to prepare an anionic mixed organic solution, a tetraoctyl ammonium bromide solution is added for stirring reaction, impurities are removed, and the room-temperature ionic liquid is obtained. The invention is mainly applied to preparation of the room-temperature ionic liquid.

Description

technical field [0001] The invention relates to a room temperature ionic liquid and a preparation method thereof. Background technique [0002] Ionic liquids refer to salts that are liquid at room temperature or <100°C and are basically composed of anions and cations, also known as low-temperature molten salts. Compared with traditional liquid materials, ionic liquids have the following outstanding features: (1) low vapor pressure, non-volatile, non-flammable, and low toxicity to humans and the environment; (2) low melting point, and a wide temperature range in liquid state (lower than or close to Room temperature -300℃), good chemical stability and thermal stability; (3) high electrochemical stability, wide electrochemical window; (4) strong solubility, can dissolve inorganic substances, organic substances and polymers; (5) It can form a two-phase or multi-phase system with other solvents, and is suitable as a reaction medium, catalyst and separation solvent; (6) It can...

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): C07C249/02C07C251/30
CPCC07C209/00C07C211/63C07C249/02C07C251/30
Inventor 李春香徐晟雷斌袁青
Owner HARBIN INST OF TECH
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