Spiral concentrator was utilized to beneficiate particles smaller than 1 mm.
Ataallah Bahrami, Yousef Ghorbani, Mirsaleh Mirmohammadi, Behnam Sheykhi, FatemehKazemi 2018, 'The beneficiation of tailing of coal preparation plant by heavy-medium cyclone', International Journal of Coal Science & Technologyhttp://link.springer.com/article/10.1007/s40789-018-0221-6. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)