Simple preparation method and application of gold powder

• Main Authors: LIANG PENG, LU HONGLIN, ZHU JUNJIE
• Format: Patent
• Language: Chinese; English
• Published: 29.03.2022
• Subjects: BASIC ELECTRIC ELEMENTS; CABLES; CASTING; CONDUCTORS; ELECTRICITY; INSULATORS; MAKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; PERFORMING OPERATIONS; POWDER METALLURGY; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES; TRANSPORTING; WORKING METALLIC POWDER

The invention discloses a simple preparation method of gold powder, which comprises the following steps: 1) preparing a reducing agent solution A by using sodium sulfite as a solute and deionized water as a solvent; 2) diluting the chloroauric acid solution with deionized water to obtain a gold-containing solution B; and 3) adding the gold-containing solution B into the reducing agent solution A for reaction, and after the reaction is completed, cleaning and drying the reaction precipitate to obtain the gold-containing composite material. According to the method, sodium sulfite is adopted as a reducing agent, the crystallization mode of the gold powder is adjusted, small flaky gold powder is aggregated into sphere-like gold powder, the sphere-like gold powder can be better fused with the slurry, the preparation reaction is rapid and efficient, the time cost is saved, a dispersing agent does not need to be added, the production cost can be reduced, and the production efficiency is improved. And the phenomenon