A kind of preparation method of precursor sol for metatitanic acid type lithium ion sieve

A technology of lithium ion and metatitanic acid, which is applied in the direction of titanate, alkali metal titanate, chemical instruments and methods, etc., can solve the problems that cannot meet the production demand, the sol is difficult to load repeatedly, and the viscosity of the sol increases. Improve the load utilization rate, prolong the stable existence time of the sol, and evenly disperse the effect

Inactive Publication Date: 2020-11-24
NEIJIANG NORMAL UNIV
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of this invention is to provide a kind of preparation method of precursor sol for metatitanic acid type lithium ion sieve, to solve the poor stability of its precursor sol itself in the preparation process of existing metatitanic acid type lithium ion sieve (sol viscosity increase rapidly, or even transform into gel), which makes it difficult for the same batch of sol to be repeatedly loaded on the substrate, so that the loading of the sol on the substrate is very limited, and the utilization rate of the sol is low, which cannot meet the production needs.

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 preparation method of precursor sol for metatitanic acid type lithium ion sieve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The preparation method of metatitanic acid type lithium ion sieve precursor sol of this embodiment includes:

[0031] (1) methanol, Gemini surfactant and triethanolamine are added into deionized water and stirred evenly to obtain a mixed surfactant solution; Methanol, Gemini surfactant and triethanolamine respectively account for 0.05%, 0.01% and 0.5% of the total volume of the mixed surfactant solution, and Gemini surfactant is cationic Gemini surfactant.

[0032] (2) placing titanium sulfate in deionized water, stirring until it is completely dissolved, then purifying by weakly basic anion exchange resin, adjusting the pH of the mixed solution purified by weakly basic anion exchange resin to 3, adding mixed surfactant solution, and stirring until uniform to obtain mixed solution;

[0033] (3) adding concentrated ammonia water into the mixed solution while stirring to adjust the pH to 8.5 to obtain white precipitate;

[0034] (4) after cleaning the white precipitate with d...

Embodiment 2

[0038] The preparation method of metatitanic acid type lithium ion sieve precursor sol of this embodiment includes:

[0039] (1) methanol, Gemini surfactant and triethanolamine are added into deionized water and stirred evenly to obtain a mixed surfactant solution; Methanol, Gemini surfactant and triethanolamine respectively account for 0.07%, 0.05% and 0.75% of the total volume of the mixed surfactant solution, and Gemini surfactant is cationic Gemini surfactant.

[0040] (2) placing titanium sulfate in deionized water, stirring until it is completely dissolved, then purifying by weakly basic anion exchange resin, adjusting the pH of the mixed solution purified by weakly basic anion exchange resin to 3.5, adding mixed surfactant solution, and stirring until uniform to obtain mixed solution;

[0041] (3) adding concentrated ammonia water into the mixed solution while stirring to adjust the pH to 9 to obtain white precipitate;

[0042] (4) after cleaning the white precipitate with ...

Embodiment 3

[0046] The preparation method of metatitanic acid type lithium ion sieve precursor sol of this embodiment includes:

[0047] (1) methanol, Gemini surfactant and triethanolamine are added into deionized water and stirred evenly to obtain a mixed surfactant solution; Methanol, Gemini surfactant and triethanolamine respectively account for 0.1%, 0.1% and 1% of the total volume of the mixed surfactant solution, and Gemini surfactant is cationic Gemini surfactant.

[0048] (2) placing titanium sulfate in deionized water, stirring until it is completely dissolved, then purifying by weakly basic anion exchange resin, adjusting the pH of the mixed solution purified by weakly basic anion exchange resin to 4, adding mixed surfactant solution, and stirring until uniform to obtain mixed solution;

[0049] (3) adding concentrated ammonia water into the mixed solution while stirring to adjust the pH to 8.5 to obtain white precipitate;

[0050] (4) after cleaning the white precipitate with deioniz...

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 discloses a preparation method of precursor sol for a metatitanic acid lithium ion sieve, and belongs to the technical field of titanium-type lithium ion sieve preparation. The preparation method includes the steps: treating and purifying titanium sulfate by anion exchange resin, adding mixed surfactants comprising methanol, Gemini surfactants and triethanolamine and adding strongerammonia water to obtain white precipitates; diluting and dispersing the white precipitates after cleaning to obtain white slurry, adding lithium acetate solution into the white slurry, uniformly mixing the lithium acetate solution and the white slurry, adding H2O2 solution and stirring the solution to obtain transparent yellow sol. According to the preparation method, by the aid of the mixed surfactant solution, a titanium source and a lithium source are more uniformly dispersed, stable existence time of the sol is prolonged, and the load use ratio of the sol is increased.

Description

Technical field [0001] The invention relates to the technical field of titanium lithium ion sieve preparation, in particular to a preparation method of precursor sol for metatitanic acid lithium ion sieve. technical background [0002] The supply of lithium resources in China is mainly extracted from ore. However, with the massive development of lithium resources, the reserves of lithium ore in China can no longer meet the demand of people for lithium resources in the future. Therefore, extracting lithium from liquid lithium resources such as salt lake brine and seawater with large lithium reserves has become an important direction and inevitable choice for obtaining lithium resources. However, lithium resources in brine mainly coexist with a large number of alkali metal and alkaline earth metal ions in the form of ions. Most brines have low lithium content and salt lake brines in China have the characteristics of high magnesium-lithium ratio, so it is difficult to develop the te...

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): C01G23/00
CPCC01G23/005
Inventor 张理元万相君由耀辉刘义武孙绪兵税亿徐文勇赵玲玲朱萍王悦
Owner NEIJIANG NORMAL UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap