n.重晶石
A new type of sulphoaluminate clinker containing barium was burnt from low-grade raw material of barytes, and its burning process was studied. 采用低品位的重晶石為原料，燒制新型含鋇硫鋁酸鹽水泥熟料，并對該水泥熟料的燒成制度進行了研究。
