Method for controlling rephosphorization in tapping process of high-titanium molten iron smelted by converter

The invention relates to the technical field of ferrotitanium smelting, in particular to a method for controlling rephosphorization in the tapping process of high-titanium molten iron smelted by a converter. Light-burned dolomite blocks are added into the converter from a high-level bunker for slag thickening before converter tapping, light-burned dolomite fine powder is added into a steel ladle by aligning a steel column flow direction in the tapping process, and aluminum particles are added to the slag surface of the steel ladle for deoxidation after tapping is completed. Based on the characteristics of high-titanium molten iron smelted by a converter, in combination with the characteristics of poor converter final slag steel slag analysis effect, high total iron content, strong oxidizability, low melting point, extremely easy decomposition of a phosphorus-rich phase in slag and the like, the influence of TiO2 on the stability of the phosphorus-rich phase is controlled by adding light-burned dolomite fine p