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Phosphorus-containing efficient metal ion adsorbing materials and preparation method thereof

A metal ion and adsorption material technology is applied to a type of phosphorus-containing high-efficiency metal ion adsorption material and its preparation field, which can solve the problems of equipment corrosion, poor production environment and high requirements, and achieve stable adsorption performance and simple modification method. , the effect of saving the cost of use

Inactive Publication Date: 2016-07-06
MAANSHAN ZHONGCHUANG ENVIRONMENTAL PROTECTION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The process of purification and impurity removal is long, the technology is difficult, the requirements are high, and the equipment is severely corroded; the production and purification of phosphogypsum, waste gas and phosphate fertilizer generated by WPA result in a poor production environment, so domestic wet-process phosphoric acid purification technology is not in urgent need of development

Method used

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  • Phosphorus-containing efficient metal ion adsorbing materials and preparation method thereof
  • Phosphorus-containing efficient metal ion adsorbing materials and preparation method thereof
  • Phosphorus-containing efficient metal ion adsorbing materials and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 3

[0033] Seawater used in Example 3 was directly taken from the coast of Lianyungang.

Embodiment 1

[0035] a) Styrene skeleton synthesis: 0.5g benzoic acid peroxide, 100g vinylbenzyl chloride and 2g vinylpyridine, suspension polymerization, after the reaction, extract with toluene, concentrate, sieve, select 250 ~ 425mm particle size product;

[0036] b) graft alcoholization: 10gNaH (content 60%) slowly adds 50g ethylene glycol, and adds 50ml dioxane, feeds N 2 Protect and keep warm for 2h (about 30-60°C); at the same time, take a certain amount of 10g intermediate product (II) and swell it in 40ml dioxane solution for 2h; add the intermediate product (II) swelling solution into the NaH reaction system, Reflux reaction for 20 hours, the product was washed with acetone, dioxane / acetone (1:1) and water in sequence, and dried in vacuum at 70°C for 12 hours;

[0037] c) Phosphating reaction: add 50ml of 3-picoline to 2g of the intermediate product (Ⅲ), stir at room temperature for 2h, add 10ml of ethyl chlorophosphate, reflux for 12h to react, remove the solvent after completio...

Embodiment 2

[0041] a) Styrene skeleton synthesis: as in Example 1;

[0042] b) graft alcoholization: 10gNaH (content 60%) slowly adds 100g triethylene glycol, and adds 100ml dioxane, feeds N 2 protection, heat preservation reaction for 2 hours; at the same time, take a certain amount of 10g intermediate product (II) and swell it in 40ml dioxane solution for 2 hours; Wash with oxane, dioxane / water (1:1) and water in sequence, and dry in vacuum at 70°C for 12 hours;

[0043] c) Phosphating reaction: add 50ml of 4-dimethylaminopyridine to 2g of intermediate product (Ⅲ), stir at room temperature for 2h, add 10ml of methyl chlorophosphate, reflux for 5h to react, remove solvent after completion, wash with ethanol and water for 3 times respectively, Wash the product with 5% sodium hydroxide, water, and 5% hydrochloric acid solution in turn, and finally wash with water until neutral to obtain the product;

[0044] d) Take 10g of adsorption material, statically adsorb the prepared U(VI), Lu(III...

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Abstract

The invention discloses a class of phosphorus-containing high-efficiency metal ion adsorption materials and a preparation method thereof. The preparation method uses a vinyl chloride polymer as a skeleton, selectively grafts and modifies organic alcohols, and finally undergoes a phosphating reaction. , forming different phosphorus-containing metal adsorption materials. This kind of metal adsorption material has the characteristics of large adsorption capacity and strong chelating ability, and can effectively remove U(VI) and Lu(III), Fe(III), La(III), Al(III) and so on from the phosphoric acid system. The trivalent ions are adsorbed, so it is especially suitable for the purification and purification of phosphoric acid in the "wet process phosphoric acid" production process, and can also be used for the enrichment and extraction of metals such as uranium in seawater.

Description

technical field [0001] The invention relates to a kind of phosphorus-containing metal adsorption material and a preparation method thereof. The adsorption material can effectively adsorb U(VI) and other trivalent metal ions, and is especially suitable for adsorbing ions from metal complexes. Background technique [0002] Uranium is a highly toxic element, and the uranium that enters the human body is difficult to excrete. The radiation damage in the body caused by the alpha rays emitted by it is highly cumulative, and it is easy to accumulate in the bones, liver and kidneys. It exhibits chemical toxicity similar to that of mercury and can cause kidney disease, hepatitis, and neurological disease. Uranium and its compounds are highly toxic, and the allowable concentration of soluble uranium compounds in the air is 0.05mg / m 3 . [0003] According to reports, the average uranium content in seawater is 1.0x10 6 kg seawater contains 3.2g uranium, i.e. 4.0x10 12 kg uranium, mo...

Claims

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Application Information

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IPC IPC(8): C08F212/14C08F212/36C08F8/26C08F8/40B01J20/26B01J20/30B01D15/08C02F1/28C02F103/08
CPCC08F212/14B01D15/08B01J20/26C02F1/285C02F2103/08C08F8/40
Inventor 朱小平
Owner MAANSHAN ZHONGCHUANG ENVIRONMENTAL PROTECTION TECH CO LTD
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