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为原料，烧制新型含钡硫铝酸盐水泥熟料，并对该水泥熟料的烧成制度进行了研究。
