人造金刚石提纯及氧化石墨制备一体化工艺研究

摘要

综合采用磁选法、Hummers法及沉降分离法对人造金刚石一次摇床分选尾料进行提纯处理.利用X射线衍射仪、拉曼光谱仪和扫描电子显微镜进行物相组成和显微结构分析.结果表明:所得人造金刚石纯度高、回收率接近100%;同时,尾料中的石墨被转化为氧化石墨,达到了节约资源、变废为宝的目的.%Magnetic separation method , Hummers method and sedimentation separation method were used to purify the synthetic diamond tails obtained through shaking table separation . The X-ray diffractometer , Raman spectrometer and scanning electron microscope were used to characterize the phase compositions and the microstructures of the obtained samples . The results indicate that the obtained diamond has high purity and that the recovery rate is close to 100% . At the same time , the graphite in the synthetic diamond tails is converted to graphite oxide , which saves resources and turns waste into treasure .