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

A technology of metal chelates and metal ions, which is applied in the ion exchange of chelates, plant fibers, ion exchanges, etc., can solve the problems of dioxins and other problems, and achieve the effect of being easy to discard

Inactive Publication Date: 2002-03-20
KIRESUTO +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] But, because base material is the polymer of olefin or halogenated olefin, so this fibrous chelating resin occurs the problem that produces the harmful gas such as dioxin when burning treatment

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0074] 0.2 g of ferrous ammonium sulfate hexahydrate was dissolved in 800 ml of distilled water, and 20 g of cotton cloth (unbleached cotton fabric) was immersed in the solution at 20° C. for 15 minutes, and then centrifuged to remove the liquid. On the other hand, 80 ml of distilled water, 6 g of glycidyl methacrylate, 0.3 g of a nonionic surfactant (manufactured by NOF Corporation, trade name "Nonionic OT-221"), 0.7 g of 31% hydrogen peroxide, and sulfur dioxide 0.25 g of urea was emulsified and dissolved to make a solution, and the cotton cloth from which the liquid was removed by centrifugation was soaked in the solution, and treated at 60° C. for 2 hours. Next, the treated cotton cloth was washed with distilled water, centrifuged to remove the liquid, and then dried at 60° C. for 16 hours to obtain 24.8 g of cotton cloth grafted with glycidyl methacrylate.

[0075] Next, 200 g of iminodiacetic acid was added to 800 g of distilled water, the pH was adjusted to 10 with 50% ...

Embodiment 2

[0088] In above-mentioned Example 1, except using powdered cellulose (manufactured by Nippon Paper Co., Ltd., trade name "KC Flock W-100") 20g instead of cotton cloth (unbleached cotton fabric), metal chelate is obtained in the same way as in Example 1. 30.0 g of formable fibers (chelate fiber B) (50 mass % of substitution rate). The same adsorption experiment was carried out using the obtained chelate fiber B, and it was confirmed that 1.2 mmol of copper was captured per 1 g of the chelate fiber B.

Embodiment 3

[0090] A commercially available cartridge filter (manufactured by Advantec Toyo Co., Ltd., trade name "TCW-1-CSS": nominal pore size 1 μm), which is wound with cotton spun yarn on a core material made of stainless steel, is installed in a polypropylene 2.5 g of ammonium ferrous sulfate was dissolved in 10 liters of distilled water in a shell (manufactured by Advantec Toyo Co., Ltd., trade name "1PP-1-FS-000"), and the solution was circulated at a flow rate of 15 liters / minute with a circulation pump. Circulate 20° C. for 15 minutes, drain the liquid, and wash with 5 liters of distilled water in the same cycle.

[0091] Next, 60 g of glycidyl methacrylate, 3.0 g of a nonionic surfactant (manufactured by NOF Corporation, trade name "Nonionic OT-221"), 6.5 g of 31% hydrogen peroxide, and 2.5 g of thiourea dioxide were dissolved in In 8 liters of distilled water, the solution was also circulated at 60° C. for 20 hours to graft glycidyl methacrylate into the molecules of cotton spu...

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PUM

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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 aminodicarboxylic acids, aminocarboxylic acids, thiocarboxylic acids and phosphoric acid, which are reactive with a glycidyl group, is bonded to a molecule of a natural fiber or regenerated fiber through a crosslinkable compound having a reactive double bond and a glycidyl group in its molecule. There are also disclosed a method of capturing metal ions using the fiber and a metal chelate fiber which can effectively make use of the characteristics of the metals and can be easily discarded or incinerated.

Description

technical field [0001] The present invention relates to a novel metal chelate-forming fiber, a method for producing the same, a metal ion trapping method using the fiber, and a metal chelate fiber, the chelate-forming fiber having the following properties: even in a low pH range , can also selectively and efficiently adsorb metal ions such as trace amounts in water, especially harmful heavy metal ions such as copper, zinc, nickel, and cobalt, and can be effectively used in a wide range of factory wastewater, drinking water, and oil purification. In addition, the metal chelate fibers formed by chelating the fibers and metals can be used as various catalysts, antibacterial and sterilizing agents, electromagnetic wave baffle materials, shading materials, colored clothing, decorations, fertilizers, etc. , metal antirust agent, etc. can be effectively used, and can be easily disposed of and burned. Background technique [0002] Industrial wastewater and the like sometimes contai...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J45/00B01J20/26B01J47/12C02F1/28C09K3/00D02G3/00D06M13/11D06M13/248D06M13/252D06M13/325D06M13/332D06M14/02D06M14/04D06M101/00D06M101/02D06M101/06
CPCD06M14/06C02F1/505C05D9/02Y10S428/917C02F2303/16C02F1/683C02F1/285C02F1/725C02F1/66D06M14/04C02F1/288C02F1/286C02F2101/20B01J45/00Y10T428/2913Y10T428/2933Y10T428/2967
Inventor 南部信义伊藤治堀内志保土井贵雄
Owner KIRESUTO
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