Sulfur-supported feedstuff addictive and preparation method thereof

A feed additive and elemental sulfur technology, which is applied in the field of hydrotalcite loaded elemental sulfur and its preparation, can solve the problems of cross-infection of pathogenic bacteria, economic losses of farmers, disease outbreaks, etc., and achieve inhibition of proliferation, good biocompatibility and gastrointestinal The effect of tract mucosa affinity, uniform dispersion and stability

Inactive Publication Date: 2009-04-08
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the current breeding industry, due to the complexity of pathogenic bacteria and cross-infection, if antibiotics are not used, it is easy to cause disease outbreaks and bring economic losses to farmers.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Preparation: According to "Oral vanadium supplementation agent with double metal oxide as carrier and its preparation and application method" (see: Ye Ying, Feng Lujia, Zheng Libo, Shen Zhongyue, Han Jie, Chen Zhifei, Li Shanshan. National Invention Patent Authorization Announcement No. CN 1187091C) method to prepare hydrotalcite.

[0024] 1) Grind the hydrotalcite obtained in the preparatory step to 400 mesh, add water and stir evenly, and make a suspension slurry with a concentration of 10%:

[0025] 2) Slowly add sodium sulfite with a sulfur content of 1% by hydrotalcite weight and sodium sulfide with a molar ratio twice that of sodium sulfite to the suspension in step 1) under stirring, and then add dilute sulfuric acid with a molar concentration of 0.5moL / L , adjust pH=3.0, react at room temperature for 5 hours;

[0026] 3) centrifugal dehydration of the suspension slurry in step 2);

[0027] 4) drying and pulverizing the filter cake obtained in step 3) to 300 me...

Embodiment 2

[0029] Preparation: According to "A Method for Preparing Bimetallic Oxide and Hydrotalcite" (see: Ye Ying, Li Shanshan, Chen Zhifei, Zheng Libo, Huang Xia, Wu Daidai, Han Jie, Zhang Weirui. National Invention Patent Grant No. CN 1222467C) method Preparation of hydrotalcite.

[0030] 1) Grind the hydrotalcite obtained in the preparatory step to 500 mesh, add water and stir evenly, and make a suspension slurry with a concentration of 5%:

[0031] 2) Slowly add sodium bisulfite with a sulfur content of 5% by weight of hydrotalcite and sodium sulfide with a molar ratio twice that of sodium bisulfite to the suspension slurry in step 1) under stirring, and then add a molar concentration of 1.5 MoL / L dilute sulfuric acid, adjust pH=5.0, react at room temperature for 8 hours;

[0032] 3) the suspension slurry in step 2) is filtered and dehydrated;

[0033] 4) drying and crushing the filter cake obtained in step 3) to 400 meshes to obtain a loaded elemental sulfur feed additive. The...

Embodiment 3

[0035] 1) Grind commercially available hydrotalcite to 500 mesh, add water and stir evenly to make a suspension slurry with a concentration of 1%:

[0036] 2) Sodium sulfite heptahydrate (Na 2 SO 3 ·7H 2 (2) and sodium sulfide whose molar ratio is 2 times that of sodium sulfite are slowly added to the suspension slurry of step 1) under stirring, and then dilute sulfuric acid with a molar concentration of 1.5moL / L is added to adjust pH=4.0, and react at room temperature for 10 hours;

[0037] 3) the suspension slurry in step 2) is filtered and dehydrated;

[0038]4) drying and crushing the filter cake obtained in step 3) to 400 meshes to obtain a loaded elemental sulfur feed additive. The content of sulfur in hydrotalcite is 10%.

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PUM

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Abstract

The invention discloses feed addictive carrying sulfur and the method for preparing the same, with hydrotalcite carrying sulfur, and the sulfur content in hydrotalcite is 1-10% by weight percent. The invention takes hydrotalcite as micro-reactor and reduces SO32- with S2- to sulfur. The invention makes use of the nanometer channel structure of hydrotalcite as reactor, so the sulfur granule is small, and the dissipation is uniform and stable. The product is characterized by high sterilizing and disinfection effect and the hydrotalcite can release sulfur slowly because of the features it possesses: bio-availability, compatibility to gastrointestinal tract mucosa, commutativity between layers, high surface activity and large specific surface area. The product can effectively inhibit the propagation of enteric pathogenic bacteria and improve animal production capability.

Description

technical field [0001] The invention relates to a loaded elemental sulfur feed additive and a preparation method thereof, in particular to a hydrotalcite-loaded elemental sulfur and a preparation method thereof. Background technique [0002] Long-term use of antibiotics and antibacterial drugs has caused adverse consequences such as bacterial resistance, drug-resistant gene transfer, drug residues in animal products, and ecological imbalance, directly or indirectly threatening human health. In recent years, some countries and regions have formulated corresponding laws and regulations to strictly control or stop the use of antibiotics in livestock and poultry farming. However, in the current aquaculture industry, due to the complexity of pathogenic bacteria and cross-infection, if antibiotics are not used, it is easy to cause disease outbreaks and bring economic losses to farmers. Therefore, it is imminent to develop safe and pollution-free new antibacterial materials. Inor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23K1/16A23K20/20A23K20/24
Inventor 夏枚生胡彩虹潘金敏
Owner ZHEJIANG UNIV
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