Preparation method of ceramic balls loaded with nano copper-zinc-silver

A technology of ceramic balls and nano-copper, applied in the field of preparation of nano-copper-zinc-silver ceramic balls, can solve the problems of ineffective removal of heavy metal ions, low filtration precision, large pore size, etc., and achieves rapid removal, good purification effect, The effect of reducing the concentration

Active Publication Date: 2011-09-14
XIAMEN RUNNER IND CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this invention emphasizes its characteristics of high strength and high porosity, its disadvantages are that it cannot effectively remove heavy metal ions in water, and the pore size is large and the filtration accuracy is low.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Example 1: Using silver nitrate, copper acetate, and zinc acetate as metal ion sources, dissolve 0.01g of silver nitrate in 10mL of deionized water at room temperature, dissolve 20g of copper acetate and 20g of zinc acetate in 500mL of deionized water at 70°C, and wait until complete After dissolving, add 100g of diatomite powder with a diameter of 100 mesh into copper acetate and zinc acetate solution, then add silver nitrate solution, keep the solution temperature at 70°C, and after stirring for 4 hours, filter and remove the residual solution. After mixing ionic diatomaceous earth and 0.5g sodium carboxymethylcellulose, stir for 1 hour to mix evenly; gradually spray the above-mentioned obtained raw materials into the billet of the ball forming machine, and spray water at the same time to reach a moisture content of 3%, and then use a synthetic Ball machine into balls, when the ball grows to a particle size of 0.2mm, take it out and sieve; Drying: After drying at 80°C ...

Embodiment 2

[0025] Example 2: Using silver nitrate, copper sulfate, and zinc sulfate as metal ion sources, dissolve 0.1 g of silver nitrate in 20 mL of deionized water at room temperature, dissolve 10 g of copper sulfate and 10 g of zinc sulfate in 200 mL of deionized water at room temperature, and wait until completely dissolved Finally, add 500g natural zeolite powder with a diameter of 200 meshes into copper sulfate and zinc sulfate solution, then add silver nitrate solution, and after stirring for 2 hours, filter and remove the residual solution. After the sol is mixed, stir for 1 hour to mix evenly; gradually spray the above-mentioned obtained raw materials into the blank of the ball forming machine, and spray water at the same time to reach a water content of 10%, and then use the ball forming machine to form balls. When the ball grows to a particle size of 20mm, take out, sieve, dry, and dry at 150°C for 4 hours. The obtained ceramic balls were microwave-sintered in a reducing carb...

Embodiment 3

[0026] Example 3: Using silver nitrate, copper chloride, and zinc chloride as metal ion sources, 0.3 g of silver nitrate was dissolved in 20 mL of deionized water at room temperature, and 50 g of copper chloride and 50 g of zinc chloride were dissolved in 500 mL of deionized water at room temperature , after being completely dissolved, adding 1000g of medical stone powder with a diameter of 150 meshes into cupric chloride and zinc chloride solution, then adding silver nitrate solution, stirring for 3 hours, filtering and removing the residual solution, and using the above-mentioned loaded metal ion After mixing the medical stone powder and 2g of polyvinyl alcohol, stir for 1 hour to mix evenly; gradually spray the above-mentioned obtained raw materials into the billet of the ball forming machine, and spray water at the same time to reach a water content of 5%, and then use the ball forming machine to form balls. When the ball grows to a particle size of 5mm, take it out and sie...

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Abstract

The invention provides a preparation method of ceramic balls loaded with nano copper-zinc-silver. The preparation method comprises the following steps of: adsorbing a certain quantity of copper, zinc and silver metal ions with ceramic powder; uniformly mixing with a binding agent by stirring; granulating with a granulator; performing drying and microwave sintering on ceramic balls; and introducing reducing gas in the sintering process to reduce the metal ions so as to obtain ceramic balls loaded with nano copper-zinc-silver. The ceramic balls have the porosity of 30-50 percent and the particle size adjustable in the range of 0.2-20 millimeters. As proved by standard labeling testing, the removing rate of residual chlorine is over 99 percent, the removing rates of heavy metal ions such as Pb<2+>, Hg<2+>, Cd<2+>, Cr<6+> and As<5+> are over 99 percent, and the degerming rate is over 99.99 percent. The preparation method has the advantages of high purification speed, good purification effect and the like.

Description

technical field [0001] The invention relates to a preparation method of nanometer copper-zinc-silver ceramic balls. Background technique [0002] With the development of society and the improvement of living standards, people have higher and higher requirements for quality of life, and clean and safe drinking water is the guarantee of people's quality of life. Access to clean and safe drinking water has become a hot topic worldwide. Water is the main carrier for the transmission of various germs, and 80% of human diseases are related to water pollution. At present, water pollution is becoming more and more serious. Surface water such as rivers and lakes and groundwater in some areas are polluted to varying degrees. The problem of water shortage has attracted widespread attention. [0003] The main pollutants in drinking water include soluble heavy metal ions, arsenic ions, trace organic pollutants, disinfection by-products, nitrates, nitrites, and pathogenic bacteria, viru...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/628C04B35/622
Inventor 余水张金树李明仁
Owner XIAMEN RUNNER IND CORP
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