Beneficiation research on a low grade linnaeite ore with hema-tite-pyrite typeXinfang Zhang, Qinqin Wang, Chengdong Wang, Lang Zhu, Shujie Shi, Niao Wang, Chunying Li and Guiming ShiE3S Web Conf., 136 (2019) 02008DOI: https://doi.org/10.1051/e3sconf/201913602008