Technology for manufacturing high-quality titanium slag through three-section method

The invention discloses a technology for manufacturing high-quality titanium slag through a three-section method. The technology includes the steps of titanium slag modifying, pressurizing acid leaching and pelleting; high-calcium-magnesium and low-grade titanium slag raw materials are subjected to ball grinding to -200 meshes, evenly mixed with a modifying agent, enter a rotary kiln to be roasted and then filtered and washed to obtain filter slag; the obtained filter slag is put into a pressurizing kettle to be subjected to pressurizing acid leaching, the filter slag is washed, filtered, dried and roasted after being discharged out of the kettle, and fine-grain titanium slag is obtained; and the obtained fine-grain titanium slag and a bonding agent are mixed evenly and put into a pelletizer for pelleting, microwave drying is conducted, and the high-quality titanium slag is obtained. The technology is simple in process, titanium slag smelting smoke of a large airtight direct-current electric arc furnace can b