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Three-dimensional hierarchical porous nano-zinc oxide for feed and preparation method thereof

A technology of nano-zinc oxide and multi-level pores, which is applied in the direction of zinc oxide/zinc hydroxide, nanotechnology, animal feed, etc., can solve the problems of limited surface area and general bactericidal ability of nano-zinc oxide, and achieve the effect of sterilization and anti-diarrhea. Application Good effect, promotes digestion

Active Publication Date: 2018-04-06
东莞市民益生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the commonly used carriers of supported nano-zinc oxide are kaolin, montmorillonite, zeolite, etc., which play a certain role in improving the agglomeration and stability of nanoparticles, but the increased surface area is limited, and the bactericidal ability of the produced nano-zinc oxide generally

Method used

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  • Three-dimensional hierarchical porous nano-zinc oxide for feed and preparation method thereof
  • Three-dimensional hierarchical porous nano-zinc oxide for feed and preparation method thereof
  • Three-dimensional hierarchical porous nano-zinc oxide for feed and preparation method thereof

Examples

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Effect test

Embodiment 1

[0023] Dissolve zinc chloride in water to prepare a solution with a concentration of 0.4 mol / l. Add 50 g of refined diatomite in every liter of zinc chloride solution, and the purpose is to make the zinc oxide composition in the three-dimensional hierarchical porous nano-zinc oxide used in the final product feed account for about 40%.

[0024] Prepare an ammonia / carbonate solution with a concentration of 0.4 mol / l. The mixed suspension of zinc chloride and refined diatomite was stirred by a stirrer at 200 rpm, and 1.2 times of the prepared ammonia / carbonate solution was slowly added dropwise to the mixed suspension until the reaction completely.

[0025] The suspension after the reaction was centrifuged with a centrifuge, and the precipitate part obtained was zinc hydroxide / zinc carbonate supported on diatomaceous earth. The precipitate was washed 3 times with deionized water to make it clean and free of impurities. Dry the obtained precipitate at 100° C. for 3 hours in an ...

Embodiment 2

[0027] Dissolve zinc chloride in water to prepare a solution with a concentration of 0.3 mol / l. Add 100 g of refined diatomite in every liter of zinc chloride solution, and the purpose is to make the zinc oxide composition in the three-dimensional hierarchical porous nano-zinc oxide used in the final product feed account for about 20%.

[0028] Prepare an ammonia / carbonate solution with a concentration of 0.3 mol / l. The mixed suspension of zinc chloride and refined diatomite was stirred by a stirrer at 250 rpm, and 1.1 times of the prepared ammonia / carbonate solution was slowly added dropwise to the mixed suspension until the reaction completely.

[0029] The suspension after the reaction was centrifuged with a centrifuge, and the precipitate part obtained was zinc hydroxide / zinc carbonate supported on diatomaceous earth. The precipitate was washed twice with deionized water to make it clean and free of impurities. The obtained precipitate was dried in an oven at 80° C. for...

Embodiment 3

[0031] Dissolve zinc chloride in water to prepare a solution with a concentration of 0.2 mol / l. Add 140g of refined diatomite in every liter of zinc chloride solution, and the purpose is to make the zinc oxide composition in the three-dimensional hierarchical porous nano-zinc oxide for the final product feed account for about 10%.

[0032] Prepare an ammonia / carbonate solution with a concentration of 0.2 mol / l. The mixed suspension of zinc chloride and refined diatomite is stirred by a stirrer at 180 rpm, and 1 times of the prepared ammonia / carbonate solution is slowly added dropwise to the mixed suspension until the reaction completely.

[0033] The suspension after the reaction was centrifuged with a centrifuge, and the precipitate part obtained was zinc hydroxide / zinc carbonate supported on diatomaceous earth. The precipitate was washed 3 times with deionized water to make it clean and free of impurities. Dry the obtained precipitate at 120° C. for 2 hours in an oven unt...

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Abstract

The invention provides a preparation method of a three-dimensional hierarchical pore nano-zinc oxide for feed. The preparation method comprises the following steps: preparing a zincate solution with the concentration of 0.2 to 0.4 mol / l, adding 50 to 150 g of kieselguhr into every liter of the zincate solution, and performing mixing to obtain turbid liquid; preparing an ammonia water / carbonate solution with the concentration of 0.2 to 0.4 mol / l, slowly dropping the ammonia water / carbonate solution with the volume 1 to 1.2 times that of the zincate solution obtained in the step (1) into the turbid liquid obtained in the step (1)in a way that dropping and stirring are carried out at the same time until the ammonia water / carbonate solution and the turbid liquid are completely reacted; performing centrifugal separation on the solution obtained in the step (2) to obtain sediments, washing and drying the obtained sediments with deionized water, and calcining the sediments at the high temperature of 300 to 600 DEG C for 2 to 4 hours to obtain a product, i.e. the three-dimensional hierarchical pore nano-zinc oxide for the feed. The three-dimensional hierarchical pore nano-zinc oxide for the feed has larger specific surface area and more effective sterilization effect, is lower in environmental pollution, and can better prevent diarrhea of weaned pigs due to stress.

Description

technical field [0001] The invention relates to an animal feed additive, in particular to a three-dimensional multi-level porous nanometer zinc oxide for feed and a preparation method thereof. Background technique [0002] Zinc oxide has a strong oxidizing and bactericidal ability, so it is usually added to piglet feed to prevent weaned piglets from diarrhea due to stress, and it also has the effect of reducing feed-to-meat ratio and changing feed remuneration. Zinc oxide in nanometer form has strong oxidative and bactericidal ability, reduces piglet diarrhea and improves feed remuneration, and is a widely used feed additive. However, there is a problem that zinc oxide is discharged into the environment with feces and pollutes the environment. Therefore, without affecting the bactericidal effect, it is of great significance to reduce the usage of zinc oxide and improve the usage efficiency of zinc oxide for nano zinc oxide products. [0003] The action ability of zinc oxid...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G9/02B82Y40/00A23K50/30A23K50/60A23K20/20A23K40/00
CPCC01G9/02C01P2006/12
Inventor 何智慧刘文富
Owner 东莞市民益生物科技有限公司