Molybdenum-tonifying feed additive and its preparation method
A feed additive and molybdate technology, applied in the field of molybdenum supplementation feed additives and preparation, can solve the problem of zero absorption and utilization rate of molybdenum, and achieve the effects of improving absorption and utilization rate, convenient use and simple implementation method.
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Embodiment 1
[0025] 1) Soak the commercially available D311 macroporous acrylic weak base anion exchange resin (this product is equivalent to America: Amberlite IRA-68; Germany: AP-49 D318) in 1mol / L sodium hydroxide solution equal to the resin volume After 2 hours, drain the lye and rinse with water until neutral, then soak in 1mol / L hydrochloric acid solution 1.5 times the volume of the resin for 3 hours, drain the acid and rinse with water until neutral;
[0026] 2) Sodium molybdate containing molybdenum content of 0.1% by weight of the anion exchange resin is pre-configured into a 0.01mol / L aqueous solution, passed through the exchange column at a flow rate of 1mL / min, and washed twice with water after the exchange is completed;
[0027] 3) drying the molybdenum-loaded anion-exchange resin obtained in step 2) at a temperature lower than 70° C. to obtain a molybdenum-supplementing feed additive, and the content of molybdenum in the anion-exchange resin is 0.1% by weight percentage.
Embodiment 2
[0029] 1) Place 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, DiaionSA-10A in Japan) in 2 mol of twice the volume of the resin Soak in / L sodium hydroxide solution for 4 hours, drain the lye and rinse with water until neutral, then soak in 2mol / L hydrochloric acid solution that is 3 times the volume of the resin for 6 hours, drain the acid solution and rinse with water until neutral;
[0030] 2) Potassium molybdate with a molybdenum content of 5% by weight of the anion exchange resin is pre-configured into an aqueous solution of 1.0 mol / L, passed through the exchange column at a flow rate of 10 mL / min, and washed 5 times with water after the exchange is completed;
[0031] 3) drying the molybdenum-loaded anion exchange resin obtained in step 2) at a temperature lower than 70° C. to obtain a molybdenum-supplementing feed additive, and the content ...
Embodiment 3
[0033] 1) Place the commercially available D301 macroporous weakly basic styrene-based anion exchange resin (this product is equivalent to the US: Amberlyste IRA-94; Amberlite IRA-93 / 94 DOWS MWA-1 / 66) in 1.5 times the volume of the resin Soak in 1.5mol / L sodium hydroxide solution of 1.5mol / L sodium hydroxide solution for 3 hours, drain the lye and rinse with water until neutral, then soak in 1.5mol / L hydrochloric acid solution twice the volume of the resin for 5 hours, drain the acid solution and rinse with water until neutral sex;
[0034] 2) Ammonium molybdate containing molybdenum content of 2.5% by weight of the anion exchange resin is pre-configured into a 0.5mol / L aqueous solution, passed through the exchange column at a flow rate of 5mL / min, and washed 3 times with water after the exchange is completed;
[0035] 3) drying the molybdenum-loaded anion-exchange resin obtained in step 2) at a temperature lower than 70°C to obtain a molybdenum-supplementing feed additive, an...
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