Load type super-fine copper-powder copper-complementary agent, its prepn. method and use

An ultra-fine copper powder, loaded technology, applied in medical preparations containing active ingredients, applications, pharmaceutical formulations, etc., can solve problems such as lack of in-depth research on physical forms, solve problems of agglomeration and stability, and has a wide range of applications , easy to use effect

Inactive Publication Date: 2006-11-15
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] For a long time, the research on copper sources has mainly been carried out around the chemical forms of copper (such as copper

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] 1) Grinding the montmorillonite produced in Inner Mongolia to 300 mesh, adding water and stirring evenly to make a suspension slurry with a concentration of 10%;

[0036] 2) Copper sulfate with a copper content of 1.5% by weight of montmorillonite, and ascorbic acid whose molar ratio is 10 times that of copper sulfate, are slowly added to the suspension slurry in step 1) under stirring, and reacted at room temperature for 2 hours;

[0037] 3) centrifugal dehydration of the suspension slurry in step 2);

[0038] 4) drying and crushing the filter cake obtained in step 3) to 300 meshes to obtain a copper replenishing agent for loaded ultrafine copper powder.

[0039] The transmission electron microscope observation shows that the average particle size of the ultrafine copper powder supported by montmorillonite is 6nm, and the particle size distribution is between 4 and 15nm. The content of copper in the montmorillonite is 1.5% by weight.

Embodiment 2

[0041] 1) Grinding the clinoptilolite produced in Jinyun, Zhejiang to 400 mesh, adding water and stirring evenly to make a suspension slurry with a concentration of 1%;

[0042] 2) slowly adding copper chloride having a copper content of 5% by weight of the zeolite, and mercaptoethanol equimolar to the copper chloride into the suspension slurry of step 1) under stirring, and reacting at room temperature for 10 hours;

[0043] 3) the suspension slurry in step 2) is filtered and dehydrated;

[0044] 4) drying and pulverizing the filter cake obtained in step 3) to 500 mesh to obtain a copper replenishing agent for loaded ultrafine copper powder.

[0045] The transmission electron microscope observation shows that the average particle size of the zeolite-loaded ultrafine copper powder is 18nm, and the particle size distribution is between 15nm and 30nm. The content of copper in the zeolite is 5% by weight.

Embodiment 3

[0047] 1) Grinding a commercially available ZSM-5 zeolite molecular sieve to 500 mesh, adding water and stirring evenly to make a suspension slurry with a concentration of 5%;

[0048] 2) Copper nitrate with a copper content of 10% by weight of the zeolite, and potassium borohydride equimolar to copper nitrate are slowly added to the suspension slurry in step 1) under stirring, and reacted at room temperature for 10 hours;

[0049] 3) the suspension slurry in step 2) is filtered and dehydrated;

[0050] 4) drying and pulverizing the filter cake obtained in step 3) to 500 mesh to obtain a copper replenishing agent for loaded ultrafine copper powder.

[0051] The transmission electron microscope observation shows that the average particle size of the zeolite-loaded copper powder is 45nm, and the particle size distribution is between 25nm and 65nm. The content of copper in the zeolite is 10% by weight.

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Abstract

A copper supplement used for the forage of animals and fowls and human health-care food or medicine is a porous mineral material carried supperfine Cu powder. It is prepared through providing mineral material as micro reactor and reducing the Cu salt to obtain superfine Cu powder.

Description

technical field [0001] The invention relates to a copper replenishing agent for loaded superfine copper powder, its preparation method and use, in particular to a copper replenishing agent for ultrafine copper powder loaded with porous mineral materials, its preparation method and its use. Background technique [0002] Copper is one of the essential trace elements for humans and animals. As a general essential nutrient element, pigs and chickens require 3-8 mg / kg of copper (NRC, 1994; 1998). The uniqueness of the trace element copper to livestock and poultry lies in the growth-promoting effect of adding high doses of copper (usually in the form of copper sulfate). At present, although the growth-promoting mechanism of high copper is not clear, high-dose copper has been widely used in animal husbandry as an efficient and cheap growth-promoting additive. Since the apparent absorption rate of pigs to copper is between 5 and 20%, and 60 to 80% of the absorbed copper is excrete...

Claims

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Application Information

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IPC IPC(8): A61K33/34A23K20/20A23K20/28A23L33/16A61K47/02A61P3/02
Inventor 胡彩虹夏枚生张红梅
Owner ZHEJIANG UNIV
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