Due to the stronger carbon-rich of SiC particle and smaller granularity of SiC whisker, activated carbon absorption-sift method is the special separation way which activated carbon have double efficacy as adsorption and sift.

• 针对SiC颗粒富碳性强和SiC晶须粒度小的特点，采用活性碳吸附过滤分选的特殊分选技术，活性碳起到吸附和过滤双重功效。