Preparation method of beta-tetrabasic zinc chloride, and application of beta-tetrabasic zinc chloride serving as animal feed additive

A technology of zinc chloride and zinc chloride solution, applied in animal feed, animal feed, application, etc., can solve problems such as reducing phytase activity, reducing pig feed intake, human health hazards, etc. Protection, good palatability, low additive effect

Active Publication Date: 2013-04-17
XINGJIA BIO ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Adding high doses of zinc oxide to the diet has undoubted effects in controlling diarrhea and promoting piglet growth. However, shortly after zinc oxide was used as a feed additive, people gradually discovered and recognized the effects of zinc oxide in production practice. many side effects
[0003] The side effects of zinc oxide include the following aspects: 1. The addition of high-dose zinc oxide causes a large amount of fecal zinc to be discharged, causing environmental pollution and potential hazards to human health; 2. The function of high-dose zinc oxide on other nutrients

Method used

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  • Preparation method of beta-tetrabasic zinc chloride, and application of beta-tetrabasic zinc chloride serving as animal feed additive
  • Preparation method of beta-tetrabasic zinc chloride, and application of beta-tetrabasic zinc chloride serving as animal feed additive
  • Preparation method of beta-tetrabasic zinc chloride, and application of beta-tetrabasic zinc chloride serving as animal feed additive

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Example Embodiment

[0025] Example 1:

[0026] A preparation method of β-basic zinc chloride of the present invention includes the following steps:

[0027] Add zinc chloride (ZnCl 2 ) 150g and 100g of water, turn on the stirring to fully dissolve the zinc chloride, and then slowly add 22.4g of ZnO to the stirred zinc chloride solution. After the temperature is raised to 80°C, the reaction is kept constant for 2h. As the reaction progresses, the reaction system Gradually become viscous; after the reaction is over, 1000mL of acetone is added to the reaction system for crystallization, the reaction temperature is continued to stir for half an hour, and the reaction is reduced to room temperature, filtered by pressure, the filter is washed 3 times with acetone, and put into the drying room at 60℃~ Dried at 100°C, crushed through a 40-mesh sieve, and finally prepared β-basic zinc chloride product (β-Zn(OH)Cl) with a yield of 85%. The zinc content and the content of arsenic, lead and cadmium in the produc...

Example Embodiment

[0028] Example 2:

[0029] A preparation method of β-basic zinc chloride of the present invention includes the following steps:

Example Embodiment

[0031] Example 3:

[0032] A preparation method of β-basic zinc chloride of the present invention includes the following steps:

[0033] (1) First, dissolve 2000g of zinc hypoxide with 50% zinc content in 1000ml 35% hydrochloric acid solution for one acid leaching. The temperature during the first acid leaching is controlled at 40℃ and the pH value is controlled at 4.5. The reaction product is filtered. After the filtered filtrate is subjected to a plate filter press, the filtrate is subjected to oxidation treatment. During the oxidation treatment, air is continuously passed into the filtrate. The temperature during the oxidation treatment is controlled at 80°C and the pH value is controlled at 5.0~ 5.2. After oxidation treatment for 1.5 hours, perform secondary plate filter press, and then add active zinc powder to the filtrate after the secondary plate filter press. The addition amount is about 1.2 times of the number of moles of heavy metal impurities such as copper, lead and ca...

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Abstract

The invention discloses a preparation method of beta-tetrabasic zinc chloride, which comprises the following steps that zinc oxide is added to a zinc chloride solution slowly and then heated, and conducts thermostatic reaction after a reaction temperature is achieved; an organic solvent or an organic solvent-water mixed liquid is added to a reaction system after early reaction is finished; subsequent crystallization reaction is conducted continuously at the reaction temperature; filtration is conducted; a filtered crystal substance is washed and dried; and beta-tetrabasic zinc chloride is obtained. Beta-tetrabasic zinc chloride prepared with the preparation method can serves as a zinc source additive for animal feed, and has the advantages of simple processing step, low cost, green, environmental protection, good product quality and the like.

Description

technical field [0001] The invention relates to a preparation method and application of an inorganic zinc compound, in particular to a preparation method of basic zinc chloride and its application as an animal feed additive. Background technique [0002] Adding high doses of zinc oxide to the diet has undoubted effects in controlling diarrhea and promoting piglet growth. However, shortly after zinc oxide was used as a feed additive, people gradually discovered and recognized the effects of zinc oxide in production practice. Many side effects. [0003] The side effects of zinc oxide include the following aspects: 1. The addition of high-dose zinc oxide causes a large amount of fecal zinc to be discharged, causing environmental pollution and potential hazards to human health; 2. The function of high-dose zinc oxide on other nutrients It has antagonistic effects, such as inhibiting the absorption of other trace elements, reducing the activity of phytase, etc.; 3. Long-term (4 ...

Claims

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Application Information

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IPC IPC(8): C01G9/04A23K1/175
Inventor 黄逸强
Owner XINGJIA BIO ENG CO LTD
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