Developed a new purification method for ultra-fine diamond powder

Also discussed in the purification process of the ultrafine diamond powder grading, purification and grading will combine. The reagent-treated fine powder was washed by centrifugation, adding a certain proportion of the surface active agent, and observed under the microscope. By a large number of experiments, we developed a new  abrasive wheels  for fine diamond powder: the dedicated reagent strong ultrasonic dispersion, prepared open diamond agglomerates formed during impurities, which is due to high  abrasive grinding pressure such that the resultant diamond single crystal particles and the reaction raw materials, additives,  Polycrystalline diamond other closely bonded together and form, thus increasing the contact area of ​​the reagent, the effect to improve the decomposition of impurities, finally obtained purified to more than 99.95% ultra-fine diamond powder.