Slow-released type iodine complement agent, and prepn. method and use-thereof
A slow-release, supplemental technology, applied in food preparation, medical preparations of inactive ingredients, applications, etc., can solve the problems of water environment pollution, waste of iodine source, easy to dissolve and dissolve in water, etc. The effect of absorption utilization, low cost, and simple implementation method
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Embodiment 1
[0022] 1) Place a commercially available 201×7 (717#) strongly basic type I anion exchange resin (this product is equivalent to Amberlite IRA-400 in the United States, Lewatit M500 in West Germany, and Diaion SA-10A in Japan) in 0.5 mol of 1 times the volume of the resin Soak in / L hydrochloric acid solution for 2 hours, drain the acid solution, rinse with water until neutral, then soak in 0.5mol / L sodium hydroxide solution that is 1 times the volume of the resin for 3 hours, drain the alkali solution and rinse with water until neutral;
[0023] 2) the resin of step 1) is packed in the exchange column, and the potassium iodate containing iodine amount is 0.5% by weight of the anion exchange resin is pre-configured into an aqueous solution of 0.01mol / L, and passes through the exchange column at a flow rate of 1mL / min. After completion of the reaction, wash 2 times with water;
[0024] 3) drying the iodine-loaded anion exchange resin obtained in step 2) at a temperature lower th...
Embodiment 2
[0026] 1) Put the commercially available D311 macroporous acrylic weak base anion exchange resin (this product is equivalent to the U.S.: AmberliteIRA-68; Germany: AP-49D318) in 2 mol / L hydrochloric acid solution twice as much as the resin body for 5 hours, Drain the acid solution and rinse with water until neutral, then soak in 2mol / L sodium hydroxide solution twice the volume of the resin for 6 hours, drain the lye and rinse with water until neutral;
[0027]2) The resin in step 1) is loaded into the exchange column, and the sodium iodate containing iodine content of 1.5% by weight of the anion exchange resin is pre-configured into a 0.8mol / L aqueous solution, and passes through the exchange column at a flow rate of 1 to 10mL / min. Column, after completion of the reaction, washed 5 times with water;
[0028] 3) drying the iodine-loaded anion exchange resin obtained in step 2) at a temperature lower than 70° C. to obtain a slow-release iodine supplement. The content of iodine...
Embodiment 3
[0030] 1) Place the commercially available D201 macroporous basic type I anion exchange resin (this product is equivalent to the United States: AmberliteIRA-900, West Germany: Lewatit MP-500, Japan: Diaion308) in 1.5 times the resin volume of 1mol / L hydrochloric acid Soak in the solution for 4 hours, drain the acid solution, rinse with water until neutral, then soak in 1mol / L sodium hydroxide solution 1.5 times the volume of the resin for 5 hours, drain the lye and rinse with water until neutral;
[0031] 2) the resin of step 1) is packed in the exchange column, and the iodine content is the potassium hydrogen iodate of anion exchange resin weight 5%, is configured into the aqueous solution of 1.0mol / L in advance, passes through the exchange column with the flow velocity of 5mL / min , after the reaction is completed, wash with water 3 times;
[0032] 3) drying the iodine-loaded anion exchange resin obtained in step 2) at a temperature lower than 70° C. to obtain a slow-release ...
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