Metal chelate-forming fiber, process for producing the same, method of trapping metal ion with the fiber, and metal chelate fiber

A technology of metal chelation and synthetic fiber, which is applied in the ion exchange of chelate, synthetic fiber, ion exchange, etc., and can solve the problems of complex modification and treatment.

Inactive Publication Date: 2002-06-05
CHUBU KIRESUTO +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the preparation method of this fibrous chelate-forming resin, that is, the modification treatment used to give metal chelate activity is complicated, and special methods such as ionizing radiation must be used. Therefore, in terms of equipment, safety There are many problems that should be improved in various aspects such as manufacturing cost

Method used

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  • Metal chelate-forming fiber, process for producing the same, method of trapping metal ion with the fiber, and metal chelate fiber
  • Metal chelate-forming fiber, process for producing the same, method of trapping metal ion with the fiber, and metal chelate fiber
  • Metal chelate-forming fiber, process for producing the same, method of trapping metal ion with the fiber, and metal chelate fiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0072] In a solution in which 5 g of potassium peroxodisulfate was dissolved in 250 mL of distilled water, 2.5 g of nylon 6 fabric was immersed at 20°C for 30 minutes, then centrifuged to remove the liquid, and added to a solution in which 250 mL of distilled water and 1.5 g of glycidyl methacrylate were dissolved. g and a solution of 0.5 g of copper sulfate 5 hydrate, and treated at 80° C. for 30 minutes. Then, the treated nylon fabric was washed with distilled water, centrifuged and dried for 16 hours to obtain 3.5 g of a nylon 6 fabric grafted with glycidyl methacrylate.

[0073] Then, 20 g of iminodiacetic acid was added to 100 g of distilled water, the pH was adjusted to 10 with a 50% aqueous sodium hydroxide solution, the grafted fabric was immersed in this solution, and treated at 90° C. for 2 hours. Then, after sufficient water eluent, 100 mL of 5% sulfuric acid was washed at 20°C for 30 minutes, washed with water, centrifuged and dried at 50°C for 16 hours to obtain m...

Embodiment 2

[0083] A commercially available cartridge filter (manufactured by Rokitechno, trade name "Micro-silia Filter Cartridge 250 LNS-1": nominal pore size 1 μm) in which nylon spun yarns were interlaced and wound on a polypropylene core material was mounted on the In a polypropylene cavity (manufactured by Advantec Toyo Co., Ltd., trade name "IPP-1-FS000"), a solution of 200 g of potassium peroxodisulfate dissolved in 10 liters of distilled water was passed through it at a flow rate of 15 liters / min for 20 °C × 15 minutes after circulation, the liquid was drained, and 5 liters of distilled water was also circulated for cleaning.

[0084] Then, a solution in which 60 g of glycidyl methacrylate and 10 g of sulfuric acid ketone 5 water and 10 g were dissolved in 8 liters of distilled water was also circulated at 80 ° C for 2 hours, and then glycidyl methacrylate and nylon spun yarn molecules were grafted After that, the reaction solution was discharged, and 3 liters of distilled water ...

Embodiment 3

[0089] In addition to replacing the iminodiacetic acid aqueous solution in Example 1 and using 30% ethylenediaminetriacetic acid 3 sodium salt aqueous solution 200g, it is the same as Example 1 to obtain 4.78g of metal chelate fiber (chelate fiber C) [Substitution rate: 88% (mass)]. Using this chelate fiber C, the same adsorption experiment as in Example 1 was performed, and it was confirmed that the copper capture ability of 1.0 mmoL was exhibited per 1 g of the chelate fiber.

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Abstract

A fiber capable of forming a metal chelate and a process for producing the same are disclosed, wherein the fiber is characterized in that at least one metal chelate-forming compound selected from the group consisting of aminocarboxylic acid. aminocarboxylic acid, thiocarboxylic acid and phosphoric acid. which are reactive with a glycidyl group, is bonded to a molecule of a synthetic fiber through a crosslinkable compound having a reactive double bond and a glycidyl group in its molecule. The chelate-forming fiber is excellent in capturing harmful heavy metal ions and can be easily produced in a simple and safe way at a low cost.

Description

technical field [0001] The present invention relates to a novel metal chelate forming fiber, its production method, a metal ion trapping method using the fiber, and a metal chelate fiber. Such chelate-forming fibers, for example, can selectively and efficiently adsorb trace amounts of metal ions in water, especially harmful heavy metal ions such as copper, zinc, nickel, and cobalt, even in low pH regions, and can be widely and effectively used It is used in the purification of industrial wastewater or drinking water and oil, etc., and the metal chelate fiber formed by chelating the fiber and the metal can be effectively used as various catalysts, deodorizing and deodorizing agents by utilizing the activity of the chelated metal. , antifungal agents, antibacterial and fungicides, antistatic materials, electromagnetic wave shielding materials, shading materials, colored clothing, decorations, fertilizers and metal rust inhibitors, etc. Background technique [0002] Various ha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D39/14B01D39/16B01J45/00C02F1/28C02F1/68C08F4/40C08F8/00C08F283/00D06M13/02D06M13/11D06M13/165D06M13/192D06M13/224D06M13/248D06M13/252D06M13/322D06M13/325D06M13/332D06M13/342D06M15/273D06M101/00D06M101/16D06M101/30D06M101/32D06M101/34
CPCB01J45/00D06M13/2246Y10S210/913D06M13/165D06M13/342B01D39/1623C02F1/683D06M13/11C02F1/285D06M13/252D06M15/273Y10S210/912D06M13/192C02F2101/20Y10S210/914
Inventor 南部信义伊藤治土井贵雄
Owner CHUBU KIRESUTO
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