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Lithium separation material preparation method

A technology for separating materials and dispersants, applied in chemical instruments and methods, other chemical processes, etc., can solve the problems of lithium ion loss, adsorption capacity limitation, etc., and achieve the effect of improving adsorption capacity, not easy to be lost, and high adsorption capacity

Active Publication Date: 2016-02-03
浙江迪特西科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The preparation method of the adsorption resin reported in the current literature, Li + Ions are introduced into the resin framework, but lithium ions are easily lost from the framework with the prolongation of the service life, and the adsorption capacity is limited. Therefore, it is necessary to invent a new type of adsorption resin to improve the adsorption capacity of lithium

Method used

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  • Lithium separation material preparation method
  • Lithium separation material preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Step 1. Preparation of water phase

[0025] In parts by weight, add 100 parts of pure water and 0.5 part of gelatin into the reactor, and stir evenly.

[0026] Step 2. Preparation of oil phase

[0027] Mix and stir the oil phase components in the following proportions evenly;

[0028]

[0029]

[0030] Step 3. Suspension Polymerization

[0031] Add the prepared oil phase solution in step 2 to the reaction kettle equipped with the prepared water phase in step 1, react at 90°C for 14 hours, discharge the material after the reaction is completed, and extract the porogen after drying to obtain product. The number is W-1.

Embodiment 2

[0033] Step 1. Preparation of water phase

[0034] In parts by weight, add 100 parts of pure water and 1.5 parts of polyvinyl alcohol into the reactor, and stir evenly.

[0035] Step 2. Preparation of oil phase

[0036] Mix and stir the oil phase components in the following proportions evenly;

[0037]

[0038] Step 3. Suspension Polymerization

[0039] Add the prepared oil phase solution to the reaction kettle equipped with the prepared water phase in step 1, react at 80°C for 24 hours, discharge the material after the reaction is completed, and extract the porogen after drying to obtain the product, No. for W-2.

Embodiment 3

[0041] Step 1. Preparation of water phase

[0042] In parts by weight, add 100 parts of pure water and 2 parts of hydroxymethylcellulose into the reactor, and stir evenly.

[0043] Step 2. Preparation of oil phase

[0044] Mix and stir the oil phase components in the following proportions evenly;

[0045]

[0046] Step 3. Suspension Polymerization

[0047] Add the prepared oil phase solution to the reaction kettle equipped with the prepared water phase in step 1, react at 110°C for 10 hours, discharge the material after the reaction is completed, and extract the porogen after drying to obtain the product, No. for W-3.

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Abstract

The invention provides a lithium separation material preparation method. According to the lithium separation material preparation method, small quantities of lithium acrylate and 1-ethoxy-3-trifluoromethyl-1,3-butadiene are introduced as a comonomer for polymerization, and a lithium ion is combined into the framework of acrylic resin in a chemical bond mode to be combined with diene and triene groups, so that the probability of loss is low and the adsorbability of a lithium separation material can be improved.

Description

technical field [0001] The invention relates to a preparation method of a resin adsorbent, in particular to a preparation method of a lithium separation material. Background technique [0002] The comprehensive utilization of lithium, boron and potassium in salt lake brine can show its huge economic benefits. However, for a large number of salt lakes with medium and low lithium content, especially chloride-type salt lakes with relatively low content of other useful components, there is still a lack of economical and reasonable lithium extraction technology from brine, which makes my country's huge lithium resources so far Unavailable. Using adsorption or ion exchange technology to directly extract lithium from medium and low lithium content salt lake brine is the most economical and ideal lithium extraction technology route. This technology does not require complex evaporation, concentration, separation and other processes, and lithium can be extracted, Separation is the cu...

Claims

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Application Information

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IPC IPC(8): C08F220/14C08F226/06C08F220/06C08F236/16C08J9/28B01J20/26B01J20/30
Inventor 马骏王琪宇
Owner 浙江迪特西科技有限公司
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