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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 It has antagonistic effects, such as inhibiting the absorption of other trace elements, reducing the activity of phytase, etc.; 3. Long-term (4 weeks) use of pharmacological doses of zinc oxide can significantly reduce pig feed intake and inhibit pig growth; 4 .Although the use of high-dose zinc oxide is beneficial to control diarrhea, long-term use can cause digestive tract disorders and even constipation; 5. Recent studies have reported that bacteria will produce certain forms of Resistance to methicillin in Staphylococcus aureus (Methicillin-resistant Staphylococcus aureus, MRSA)

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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Embodiment 1

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

[0027] Add zinc chloride (ZnCl 2 ) 150g and water 100g, start stirring to fully dissolve zinc chloride, then slowly add ZnO22.4g to the stirred zinc chloride solution, heat up to 80°C and react at constant temperature for 2h, as the reaction progresses, the reaction system Gradually become viscous; after the reaction, add 1000mL of acetone to the reaction system for crystallization, continue to stir at the reaction temperature for half an hour, then cool down to room temperature, press filter, wash the supernatant with acetone for 3 times, and put it in a drying room at 60℃~ Dry at 100°C, crush and pass through a 40-mesh sieve, and finally prepare the finished product of β-basic zinc chloride (β-Zn(OH)Cl), with a yield of 85%. The content of zinc, arsenic, lead and cadmium in the product is determined by referring to the zinc oxide standard (HG2792-1996 feed additiv...

Embodiment 2

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

Embodiment 3

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

[0033] (1) First, dissolve 2000g of secondary zinc oxide with a zinc content of 50% in 1000ml of 35% hydrochloric acid solution for one pickling. The reaction product is filtered, and the filtered filtrate is subjected to a plate filter press, and then the filtrate is oxidized. During the oxidation treatment, air is continuously introduced 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 oxidizing for 1.5 hours, carry out the second plate filter press, and then add active zinc powder to the filtrate after the second plate filter press, and the added amount is about 1.2 times the molar number of copper, lead, cadmium and other heavy metal impurities in the filtrate , remove heavy metals such as lead and cadmium in the filtrate, and then obtain 250ml24% zinc chloride aqueous solut...

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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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