SciELO - Scientific Electronic Library Online

 
vol.74 issue152(Ti,Al)N COATINGS ON AISI 4140 BY R.F. SPUTTERINGBASICITY MEASUREMENT AND OXYGEN POTENTIAL OF 1020 STEEL- 80%V2O5-20%Na2SO4 SALT- 1%SO2-99%O2 GAS AT 700ºC author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand

Journal

Article

Indicators

Related links

  • On index processCited by Google
  • Have no similar articlesSimilars in SciELO
  • On index processSimilars in Google

Share


DYNA

Print version ISSN 0012-7353On-line version ISSN 2346-2183

Abstract

ROJAS, ANDRÉS F.  and  BARRAZA, JUAN M.. PARTITIONING OF ELEMENTOS IN TWO COALS FROM SOUTH WEST OF COLOMBIA. Dyna rev.fac.nac.minas [online]. 2007, vol.74, n.152, pp.187-196. ISSN 0012-7353.

Results of partitioning of elements observed during beneficiation of two Colombian coals from South West using dense media separation are presented. Beneficiated coal fractions were obtained using two series separation stages. Both, feed coal from first stage and bottom from second stage were analyzed by X Ray Fluorescence (XRF) to determine the concentration of 33 elements. From those data, elementary partition factor was determined in order to know the affinity toward the phases organic or mineral matter.  It was found that the affinity of elements increases toward the mineral matter when the particle size of coal fractions decreases.

Keywords : Elements; partition factor; beneficiated coal; cyclone separation.

        · abstract in Spanish     · text in Spanish     · Spanish ( pdf )

 

Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License