Determination of trace molybdenum in stone coal cinder by catalytic oxidation based fading spectrophotometry;

The thermal insulation material ed in industrial kiln, with higher compressive strength and utilitytemperature, and low thermal conductivity, is made mainly from stone coal cinder.

By the analysis of the thermal conductive mechanism, the influences of the composition of substance phase of the thermal insulating brick, the mixing amount of stone coal cinder and hole-forming material,and the system of sintering temperature have been discussed.

Determination of trace tantalum in stone coal slag with flow injection-ion exchange separation and spectrophotometry;

Solid phase spectrophotometry for the determination of trace tantalum in stone coal slag;