The phosphate mining industry produces large amounts of tailings. Rational utilization of phosphorus tailings (PT) is of great significance for the full utilization of resources and environmental protection. In this study, PT was used as part of raw materials to prepare white Portland cement clinker (WPCC). XRD, SEM-EDS, TG-DSC, and FTIR, etc. were used to study the effect of PT on mineral composition, ionic solid solution and strength of WPCC. he results showed as follows: PT as part of the raw material of WPCC could significantly improve the burnability of raw materials, increase the content of liquid phase, and promote the formation of minerals; The addition of PT stabilized the α’-C2S crystal and promoted the C3S crystal in the clinker tend to change from T-type to M-type; There was no significant effect for PT's addition on the decomposition temperature of CaCO3, the appearance temperature of liquid phase and the formation temperature of C3S; Compared with the control group, when PT content was 2.5%, WPCC had the highest strength. its 3d strength increased by 46.86% and 28d strength increased by 82.59%.
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