Styrene-series ion-exchange fiber applied to boron adsorption and preparation method thereof
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A technology of ion exchange fiber and styrene, which is applied in the direction of ion exchange, anion exchange, ion exchange treatment devices, etc., can solve the problems of non-patented technology, and achieve the effect of high water content and low cost
Inactive Publication Date: 2009-06-03
KAIRUI ENVIRONMENTAL PROTECTION TECH
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[0002] There are some publications on the technology of developing styrene-based ion exchange fibers at home and abroad, such as the preparation of strong acid-type styrene-based ion exchange fibers by sulfonating polypropylene grafted monomer styrene Exchange fiber (1), Japan's latest development of polypropylene-polystyrene composite fiber, sulfonated to prepare strong acid styrene ion exchange fiber (2), but it is not a patented technology; US3111362, US2980635, JP8555032 and other patents also involve ion exchange fiber Some production methods of exchange fibers, this patent uses the composite fiber products of polypropylene fibers grafted with styrene on the market as the skeleton, and through chlorination and ammoniation reactions, styrene-based ion exchange fibers for boron adsorption are obtained. The technology is innovative and has not been reported yet
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Embodiment 1
[0022] 1. Test device
[0023] Constant temperature water bath (0—120°C)
[0024] Adjustable electric mixer (0-2000 rpm)
[0025] Three-neck bottle (2000ml)
[0026] plastic mixing paddle
[0027] Thermometer (0-150℃)
[0028] Rubber stopper (No. 5)
[0029] Beaker (400ml, 1000ml)
[0030] Balance (0—1000g)
[0031] 2. Main raw materials
[0032] 2.1. Composite fiber products of polypropylene fiber grafted with styrene, outsourced
[0033] 2.2. Chloromethyl ether, analytically pure
[0034] 2.3. Benzene, analytically pure
[0035] 2.4. Methanol, analytically pure
[0036] 2.5. N-methylglucamine, analytically pure
[0037] 2.6. Anhydrous zinc chloride, analytically pure
[0038] 3. Brief description of the process
[0039] 3.1. Swelling
[0040] Take 100 grams of polypropylene fibers grafted with styrene composite fiber products into a three-necked flask, add 200 grams of benzene, 350 grams of methanol, and stir at room temperature for 10 hours.
[0041] 3.1. Chl...
Embodiment 2
[0049] It is 100 parts (weight) to reduce N-methylglucamine consumption, and other is with example one. The resulting product number is KRB-2.
Embodiment 3
[0051] It is 300 parts (weight) to improve N-methylglucamine consumption, and other is with example one. The resulting product number was KRB-3.
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Abstract
The invention relates to a styrene-type ion-exchange fiber applied to boron adsorption and a preparation method thereof. The ion-exchange fiber is prepared according to the following steps: taking a composite fiber product, which is made by grafting market polypropylene fiber onto styrene, as a framework; and carrying out chloromethylating and introducing in N-methyl glucosamine for ammoniation so as to obtain ion-exchange fiber with boron selectively adsorbed thereon. The selective ion-exchange fiber is independent from a large amount of coexisted salts and is capable of selectively capturing boric acid only, thus having highly practical value.
Description
technical field [0001] The invention relates to an ion-exchange resin and a preparation method thereof, in particular to a styrene-based ion-exchange fiber applied to boron adsorption and a preparation method thereof. technical background [0002] There are some announcements on the technology of developing styrene-based ion-exchange fibers at home and abroad, such as the use of polypropylene grafted monomer styrene to prepare strong acid-type styrene-based ion-exchange fibers (1), and Japan’s latest development of polypropylene-polystyrene Composite fiber, sulfonation to prepare strong acid type styrene ion exchange fiber (2), but it is not a patented technology; patents such as US3111362, US2980635, JP8555032 also relate to some production methods of ion exchange fiber, this patent adopts the polymer sold on the market The composite fiber product of propylene fiber grafted with styrene is used as the skeleton, and the styrene-based ion exchange fiber used for boron adsorpt...
Claims
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Application Information
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