Deironing experiments were conducted on nepheline syenite from Yongsheng village, Jilin Province, which may provide useful data for the utilization of the Yongsheng nepheline syenite.

• 对吉林省永胜霞石正长岩进行磁选除铁试验，确定该岩体的合理选矿条件和最佳工艺流程，精矿产品的杂质含量，为我省霞石正长岩开发利用提供试验依据。