Preparation method of precursor sol for metatitanic acid lithium ion sieve

A lithium ion and precursor technology is applied in the field of preparation of precursor sol for metatitanate lithium ion sieve, which can solve the problems of inability to meet production requirements, increase in sol viscosity, and difficulty in repeated loading of sol, so as to improve load utilization. The effect of increasing the rate, uniform dispersion, and prolonging the stable existence time of the sol
CN109399702AInactive Publication Date: 2019-03-01NEIJIANG NORMAL UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NEIJIANG NORMAL UNIV
Publication Date
2019-03-01
Estimated Expiration
Not applicable · inactive patent

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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.
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Description

technical field

[0001] The invention relates to the technical field of preparation of titanium-type lithium ion sieves, in particular to a method for preparing a precursor sol for metatitanic acid-type lithium ion sieves. Background technique

[0002] The supply of lithium resources in my country is mainly extracted from ore, but with the massive development of lithium resources, my country's lithium ore reserves can no longer meet people's demand for lithium resources in the future. Therefore, liquid lithium from salt lake brine and seawater with large lithium reserves Extracting lithium from resources has become an important direction and an inevitable choice for obtaining lithium resources. However, lithium resources in brine mainly coexist in the form of ions with a large amount of alkali metal and alkaline earth metal ions. Most brines have low lithium content and my country's salt lake brine has a high ratio of magnesium to lithium, so the technical difficulty of develo...

Claims

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