Chemical reagent for purifying recycled diamond and purification method

• Main Authors: ZOU YUYAO, ZHANG JINYU
• Format: Patent
• Language: Chinese; English
• Published: 11.05.2021
• Subjects: CHEMISTRY; COMPOUNDS THEREOF; INORGANIC CHEMISTRY; METALLURGY; NON-METALLIC ELEMENTS

The invention belongs to the technical field of purification of recycled diamond, and particularly relates to a chemical reagent for purifying recycled diamond and a purification method. The used chemical reagents are only very common concentrated sulfuric acid and concentrated nitric acid, the whole process is simple, convenient and easy to operate, the sealing performance of a reaction device and an air draft facility are extremely good, yellow smoke cannot be seen and pungent smell cannot be smelled in the whole process, the method is very environment-friendly, and the health and safety of operators can be effectively protected; meanwhile, reacted concentrated sulfuric acid can be recycled, so that the use efficiency of chemical reagents is greatly improved, and large-scale production of enterprises is facilitated. According to the step-by-step heating type deep purification method provided by the invention, the impurity content of the recycled diamond can be remarkably reduced, and the diamond can be cont