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
CN109399702BInactive Publication Date: 2020-11-24NEIJIANG NORMAL UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NEIJIANG NORMAL UNIV
Publication Date
2020-11-24
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 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

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