The invention discloses an efficient
beneficiation method for low-grade titanic
magnetite hard to select and smelt. The method comprises the steps that in the crushing step, the low-grade titanic
magnetite hard to select and smelt is crushed; in the first section ore
grinding classification step, the titanic
magnetite obtained after crushing is ground, first
rotational flow classification is conducted, first fine particle overflow and first coarse grain pulp are obtained, and the first coarse grain pulp is subjected to first
grinding again to return,; in the one-section low intensity
magnetic separation step, the first fine particle overflow is subjected to first low intensity
magnetic separation, and first iron concentrate pulp and first
tailings pulp are obtained; in the screening classification step, the first iron concentrate pulp I is screened, and plus
sieve coarse ore and minus
sieve fine pulp are obtained; and in the second-section ore
grinding classification step, the first iron concentrate pulp and the plus
sieve coarse ore are combined and subjected to second
rotational flow classification, second fine particle overflow and second coarse grain pulp II are obtained, and the second
coarse particle pulp is subjected to second grinding to return to second
rotational flow classification. For the low-grade titanic magnetite hard to select and smelt, the iron and
titanium recycling rate is increased in combination of rotational flow classification and low intensity
magnetic separation, and the method has the beneficial effects of being simple in technology, easy to operate and high in
beneficiation efficiency.