Determining the concentration of sulphur in coal

Details Determining the concentration of sulphur in coal Determining the concentration of sulphur in coal

G - Physics

01

N

358/12

G01N 23/20 (2006.01)

Patent

CA 1063258

A B S T R A C T A method for continuously measuring the concentration of sulphur in coal of the type described, including the steps of bombarding a sample of coal with electromagnetic radiation in the x-ray region of the spectrum to cause the iron atoms in the sample to emit their character- istic fluorescent radiation, detecting said fluorescent radiation, measuring the intensity of said fluorescent radiation, from which measure the concen- tration of iron in the sample is calculated, correcting the concentration of iron to allow for non-pyritic iron in the coal, determining the concen- tration of sulphur present in the coal as iron pyrites from the corrected concentration of iron, and correcting the concentration of sulphur thus found to allow for sulphur present in the coal in organic and sulphatic form to give the concentration of sulphur in the coal. This method has the advantage that it can be applied to coal at the mine head by relatively unskilled personnel.

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