Patent ID: 8636236
Filing Date: 2014-01-28
Classification: B02C

Abstract:
1. A method for producing pearl powder through levigation and rolling porcelain balls, characterized by including the following process steps: (1) selecting pearls having a diameter of 3.5˜8.6 millimeters (mm), (2) placing pearls and clean water into a first washing porcelain jar at a mass ratio of 1˜1.1:1˜1.1, (3) placing clean pearls into an oven to dry the pearls at a temperature of 80˜82° C. for 40˜60 minutes, (4) sterilizing by processing the dry pearls in an autoclave at a pressure of 0.1˜0.15 MPa (megapascal) for 20˜30 minutes to obtain sterilized pearls, (5) milling by place sterile water, sterilized pearls and sterilized porcelain balls into a sterilized milling porcelain jar at a mass ratio of 3˜3.1:5˜5.1:4˜4.1, and rotating the milling porcelain jar at the speed of 70˜80 rpm to cause the sterile water, the sterilized pearls and the sterilized porcelain balls to revolve within the milling porcelain jar and to mill the sterilized pearls for 240˜242 hours to produce pearl emulsion, (6) pouring the pearl emulsion obtained through step (5) into a sterilized container for precipitation for 28˜30 hours, selecting the upper portion of the precipitates, and drying the selected portion of the precipitates for 1˜1.2 hours at the temperature of 80˜82° C. to obtain the pearl powder.