Silver powder and method for producing same
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Benefits of technology
Problems solved by technology
Method used
Image
Examples
example 1
[0030] To 3600 ml of an aqueous solution containing 12 g / l silver nitrate as silver ions, 375 ml of industrial aqueous ammonia was added to form an aqueous silver ammine complex solution. To the aqueous silver ammine complex solution thus formed, 75 g of sodium hydroxide was added to control the pH of the solution. Then, 96 ml of industrial formalin serving as a reducing agent was added to the solution. Immediately thereafter, 1.5 g of oleic acid was added to the solution to obtain a silver slurry. Then, the silver slurry thus obtained was filtered, washed with water, dried to obtain a silver powder. Then, the surface of the silver powder thus obtained was smoothed by a surface smoothing process using a high-speed mixer, and the silver powder thus smoothed was classified to remove silver agglomerates having a greater diameter than 8 μl m.
[0031] The particle diameters of the silver powder thus obtained were measured by Microtrack. As a result, D10 was 0.8 μm, and the mean particle d...
example 2
[0037] To 3600 ml of an aqueous solution containing 12 g / l silver nitrate as silver ions, 180 ml of industrial aqueous ammonia was added to form an aqueous silver ammine complex solution. To the aqueous silver ammine complex solution thus formed, 1 g of sodium hydroxide was added to control the pH of the solution. Then, 192 ml of industrial formalin serving as a reducing agent was added to the solution. Immediately thereafter, 0.1 g of stearic acid was added to the solution to obtain a silver slurry. Then, the silver slurry thus obtained was filtered, washed with water, dried to obtain a silver powder. Then, the surface of the silver powder thus obtained was smoothed by a surface smoothing process using a high-speed mixer, and the silver powder thus smoothed was classified to remove silver agglomerates having a greater diameter than 11 μm.
[0038] The particle diameters of the silver powder thus obtained were measured by Microtrack. As a result, D10 was 1.7 μm, and D50 was 3.1 μm. In...
example 3
[0047] To 3600 ml of an aqueous solution containing 12 g / l silver nitrate as silver ions, 180 ml of industrial aqueous ammonia was added to form an aqueous silver ammine complex solution. To the aqueous silver ammine complex solution thus formed, 7.5 g of sodium hydroxide was added to control the pH of the solution. Then, 192 ml of industrial formalin serving as a reducing agent was added to the solution. Immediately thereafter, 1.5 g of oleic acid was added to the solution to obtain a silver slurry. Then, the silver slurry thus obtained was filtered, washed with water, dried to obtain a silver powder. Then, the surface of the silver powder thus obtained was smoothed by a surface smoothing process using a high-speed mixer, and the silver powder thus smoothed was classified to remove silver agglomerates having a greater diameter than 8 μm.
[0048] The particle diameters of the silver powder thus obtained were measured by Microtrack. As a result, D10 was 1.0 μm, and D50 was 1.8 μm. In ...
PUM
| Property | Measurement | Unit |
|---|---|---|
| Temperature | aaaaa | aaaaa |
| Length | aaaaa | aaaaa |
| Length | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More