Method for analyzing different sulphur forms

Details Method for analyzing different sulphur forms Method for analyzing different sulphur forms

G - Physics

01

N

150/20

G01N 33/22 (2006.01) G01N 21/35 (2006.01) G01N 31/12 (2006.01)

Patent

CA 1252705

-1- Abstract: A method is described for quantitatively determining the different forms of sulphur present in a sample of material, such as coal. The sulphur-containing sample is burned in finely divided form within a confined combustion chamber at a predetermined elevated temperature. Combust- ion gases are continuously removed from the chamber and these pass through an infrared analyzer which continuously monitors the intensity of the infrared spectra for sulphur dioxide in the combustion gases. The infrared intensity is measured as a function of combustion time of the sample to obtain peaks in the infrared intensity-time pattern indicative of different forms of sulphur. From these pattern peaks the quantity of each form of sulphur in the sample is determined.

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