PL EN


Preferencje help
Widoczny [Schowaj] Abstrakt
Liczba wyników
Tytuł artykułu

Study on pre-concentration efficiency of wolframite from tungsten ore using gravity and magnetic separations

Autorzy
Treść / Zawartość
Identyfikatory
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
Pre-concentration is effectively applied in recovering wolframite from tungsten ore, due to its benefits of further upgrading tungsten ore and improving separation efficiency. The most important pre-concentration techniques for tungsten ore include gravity separation and magnetic separation, based on the fact that there are appreciable differences, between the desired wolframite and the gangue minerals, in density and magnetic susceptibility. This study investigated the separation efficiency of gravity pre-concentration (Falcon Concentrator) and high-gradient magnetic pre-concentration (SLon VPHGMS) for the beneficiation of a Canada tungsten ore. It is a low-grade type of ore with high silica and arsenic content, and an average content of WO3 is about 0.45%. The optimum conditions for different operational parameters of two pre-concentration separators were studied on this low-grade material. The results presented in this paper suggested that although both pre-concentration techniques were effective for producing pre-concentrates containing high WO3, magnetic pre-concentration showed significantly better separation efficiency. Over 90% of the feed was rejected as the final tailings, meanwhile, over 85% of arsenic minerals were removed with tailings, while the WO3 loss was less than 15%.
Rocznik
Strony
718--728
Opis fizyczny
Bibliogr. 10 poz., rys., tab.
Twórcy
autor
  • School of Minerals Processing and Bioengineering, Central South University, Changsha, China
autor
  • School of Minerals Processing and Bioengineering, Central South University, Changsha, China
autor
  • School of Minerals Processing and Bioengineering, Central South University, Changsha, China
autor
  • School of Minerals Processing and Bioengineering, Central South University, Changsha, China
autor
  • School of Minerals Processing and Bioengineering, Central South University, Changsha, China
Bibliografia
  • BURT R., 1996, The role of gravity concentration in modern processing in modern processing plants, Miner. Eng. 11 (12), 1291-1300.
  • CHEN L., DING L., ZHANG H., HUANG J., 2014, Slice matrix analysis for combinatorial optimization of rod matrix in PHGMS, Miner. Eng. 58, 104-107.
  • EL-MIDANY A.A., IBRAHIM S.S., 2011, Does calcite content affect its separation from celestite by Falcon concentrator?, Powder Tech. 213, 41-47.
  • GREENWOOD M., LANGLOIS R., WATER K.E., 2013, The potential for dry processing using a Knelson Concentrator, Miner. Eng., 45, 44-46.
  • JORDENS A., SHERIDAN R., ROWSON N.A., WATERS K.E., 2014, Processing a rare earth mineral deposit using gravity and magnetic separation, Miner. Eng. 62, 9-18.
  • KROLL-RABOTIN J-S, BOURGEOIS, F., CLIMENT E., 2012. Experimental validation of a fluid dynamics based model of the UF Falcon concentrator in the ultrafine range, Sep. Purif. Technol. 92, 129-135.
  • MATJIE R.H., BUNT J.R., VAN HEERDEN J.H.P., 2005, Extraction of alumina from coal fly ash generated from a selected low rank bituminous South African coal, Miner. Eng. 18, 299-310.
  • OZAN K., RAY L., KRISTIAN E.W., 2015, A design of experiments investigation into dry separation using a Knelson Concentrator, Miner. Eng., 72, 73-86.
  • SRIVASTAVA J.P., PATHAK P.N., 2000, Pre-concentration: a necessary step for upgrading tungsten ore, Int. J. Miner. Process. 60,1-8.
  • ZENG W., DAHE X., 2003, The latest application of SLon vertical ring and pulsating high-gradient magnetic separator, Miner. Eng. 16, 563-565.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-7964b5a4-ab08-4472-bce6-7d7219ff1f82
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.