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Iron ion adsorption resin, preparation method and application thereof in removal of iron ions in solution

A technology for adsorbing resin and iron ions, applied in ion exchange, selective adsorption, ion exchange regeneration, etc., can solve problems such as process influence, and achieve the effect of high adsorption selectivity, easy analysis, and good removal ability

Pending Publication Date: 2020-09-22
SUNRESIN NEW METERIALS CO LTD XIAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Patent CN106636651B adopts aluminum phosphate-based iron-aluminum phosphate composite precipitation method, but the process needs to adjust the pH of the solution, and the introduction of phosphate will affect the process

Method used

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  • Iron ion adsorption resin, preparation method and application thereof in removal of iron ions in solution
  • Iron ion adsorption resin, preparation method and application thereof in removal of iron ions in solution
  • Iron ion adsorption resin, preparation method and application thereof in removal of iron ions in solution

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-5

[0029] Using different amounts of cross-linking agents to prepare different resin-based balls, the specific cross-linking dosage is:

[0030] 63%DVB / g 80%DVB / g Example 1 40 Example 2 55 Example 3 90 Example 4 85 Example 5 150

[0031] Other components of the oil phase: styrene: 740g, liquid paraffin: 320g, 200# gasoline: 165g, BPO: 9g, mix the above substances evenly and set aside;

[0032] Water phase: tap water: 2500g, gelatin: 30g; add water to a 5000L three-neck flask, start stirring, heat up to 45°C, add gelatin, keep warm at 45°C for 1 hour to dissolve the gelatin;

[0033] Stop stirring, slowly pour the mixed oil phase into a three-necked flask, let it stand for 10 minutes, and replace the air in the upper space of the flask with nitrogen; start stirring, adjust the stirring speed, so that the particle size of the oil beads is between 0.3 ~ 0.8mm, Start to heat up, raise the temperature to 70°C in 2 hours, keep i...

Embodiment 6-10

[0038]Use the method in Example 2 to prepare resin-based balls; put the resin-based balls in an oven and dry at 80°C until the water content is below 0.5%; weigh 100 g of the dried resin-based balls, and put them into the dried In the three-necked flask, add 100g of aluminum trichloride, respectively add the substances in the following table, stir and swell for 120min.

[0039] Chlorohydrin 3-chloropropanol 1-Chloro-2-propanol 4-Chlorobutanol 5-chloropentanol Example 6 150 Example 7 200 Example 8 260 Example 9 320 Example 10 400

[0040] Raise the temperature to 60°C for 10 hours, then filter out the resin, wash with ethanol, and wash with water to obtain a hydroxylated resin intermediate, and dry it in an oven at 80°C until the water content is less than 0.5% for later use;

[0041] Weigh 100g of the dried hydroxylated resin intermediate, put it into a dry three-necked flask, add 100...

Embodiment 11-15

[0044] Use the method in Example 2 to prepare resin-based balls; put the resin-based balls in an oven and dry at 80°C until the water content is below 0.5%; weigh 100 g of the dried resin-based balls, and put them into the dried In the three-necked flask, add 400g of phosphorous acid and 50g of aluminum trichloride, respectively add the substances listed in the following table, stir and swell for 120min:

[0045] Phosphorus trichloride Phosphorus pentachloride Example 11 100 Example 12 200 Example 13 300 Example 14 400 Example 15 500

[0046] Raise the temperature to 75°C for 10 hours, then filter out the resin, wash with ethanol, and wash with water to obtain a phosphorylated resin intermediate, and dry it in an oven at 80°C until the water content is less than 0.5% for later use;

[0047] Weigh 50g of the phosphorylated resin intermediate after drying, put it into the reaction kettle, add 50g of dichloroethane, soak f...

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Abstract

The invention discloses iron ion adsorption resin, a preparation method thereof and an application of the iron ion adsorption resin in removal of iron ions in a solution. The preparation method comprises the following steps: preparing resin with a styrene skeleton by using a suspension polymerization method, and then preparing sulfonic acid resin with different phosphoric acid structures through the processes of chlorination, phosphorylation and sulfonation. The sulfonic acid resin prepared in the invention has strong binding capacity to iron, and has the advantages of high iron ion removal precision, complete analysis and the like, and can be used in a complex environment.

Description

technical field [0001] The invention belongs to the field of preparation and application of functional polymer materials, and relates to the preparation of an iron ion adsorption resin and a method for removing iron ions in a solution. Background technique [0002] As one of the most abundant elements in the earth's crust, iron often exists in large quantities in various solution systems, such as coexisting with other non-ferrous metals in ore bodies, which reduces the quality of non-ferrous metals. If it exists in the hydrometallurgical solution of nickel, cobalt, manganese, lithium, zinc, etc., it becomes a key impurity. If it is not removed, it will pollute the target metal and cause difficulties in subsequent use. In addition, during the preparation of high-purity organic solvents such as electronic-grade reagents, they are often contaminated by iron ions, resulting in insufficient reagent purity. [0003] Therefore, removing iron impurities is a necessary process step ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/26B01J20/30B01D15/08
CPCB01J20/265B01J20/267B01D15/08
Inventor 李岁党边维娜韦婷侯亮来刘琼寇晓康
Owner SUNRESIN NEW METERIALS CO LTD XIAN
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