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8 - Iron Ore

Prior to fusion, the loss on ignition (LOI), which includes H2O+, CO2, S and other volatiles, is determined from the weight loss after roasting the sample. The fusion disk is made by mixing the roasted sample with a combination of lithium metaborate and lithium tetraborate. Samples are fused in Pt crucibles using an automated crucible fluxer and automatically poured into Pt molds for casting. Samples are analyzed on a Panalytical Axios Advanced wavelength dispersive XRF.

 

  Code 8 – Iron Ore (XRF) Major oxides (%)

Element

Detection Limit

Element

Detection Limit

Al2O3

0.01

MgO

0.01

CaO

0.01

MnO

0.01

Cr2O3

0.01

Na2O

0.01

Fe2O3

0.01

P2O5

0.01

K2O

0.01

SiO2

0.01

LOI 

0.01

TiO2

0.01

V2O5

0.003

 

Options:

·         Metallic Fe by Titration

·         Total Fe by Titration

·         FeO by Titration

·         Davis Tube Magnetic Separation – Recoveries of ferromagnetic products are evaluated by Grind Size and Magnetic Field Strength (Gauss). To determine the chemical composition, the magnetic and non-magnetic recoveries can be analyzed by XRF and Lithium Metaborate Fusion. Contact us to discuss your requirements as procedures are very ore specific.

·         Sulphur

·         TGA Analysis

·         Satmagan Test


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