It is determined through analysing the feature of tailings of Hebei iron stone, which contains TiO2 7.18%, adopting“high intensity magnetic separation-shaking table concentration. The results show that the concentrate with a TiO2 grade of 27.31%, recovery87.75% and productivity 23.07% and the tailing with a TiO2 grade of 1.14%, recovery12.25% and productivity 76.93%.

The grade of the low quality fluorite ore was assayed around 30.95％CaF2. When the grain size achieved by 65% of -200 mesh at the first stage grindings and the grain size achieved by 100% of -400 mesh at the second stage grindings, the circuit of one rough floatation and six cleaning floatation are used in the recovery of fluorspar, the result is obtained that the fluorite concentrate grade of CaF2 is 98.50%,with the recovery of 54.10%.

Based on the crystal structure research of sericite and muscovite in mineralogy, research of sericite was done by the analysis of XRD,IR ,SEM and microscope research in its color, chemical composition, gloss,and other properties. Applications were summarized in this paper and little difference was discussed between sericite and moscovite.