We can obtain the crude ilmenite concentrate products with 33.01% TiO2 grade, yield 6.61%, recovery rate 35.91% through the coarse aggregate grinding processing line process.

The concentrate products obtained from coarse aggregate grinding processing line machine were fed into three different types of gravity chutes one by one for the selection test.

As can be seen from table 6, chute is used in both rough selection and selection, we obtain the concentrate titanium with 25.01% grade, yield 9.40%, recovery rate 38.66%. If set the TiO2 28% grade as the target, can be obtained Ti concentrate of grade 29.50%, yield 6.43% and recovery rate 31.20%.