Sample preparation for analysis is important task in all aspects
Received sample is broken in small particles of approx. 1 – 10 mm by hammers manually.
Size reduced sample gets crushed and ground manually for 75 – 100 mess size.
Ground sample further processed in planetary mill up to 200 mess achieved
X-ray fluorescence (XRF) spectrometry is a rapid, quantitative multi-element technique that provides excellent accuracy and unparalleled long-term precision.
XRF applications now range from cost-effective stand-alone monitoring to high-performance; multi-element analysis that gives an insight into complex processes, this robust technique is being used for monitoring, process control, quality assurance, compliance and research.
By XRF following 26 elements will be analyzed within 20 minutes.
Coal And Lignite Analysis.
Proximate analysis: It includes determination of Moisture, Ash, Volatile Matter, Calorific value and Fix Carbon.
Different forms of Sulphur: It includes Total Sulphur, Sulphate Sulphur, Pyretic Sulphur and Organic Sulphur by difference.
Ash analysis: Chemical analysis of Ash.
GENERAL CHEMICAL ANALYSIS
Wet Chemical Analysis
Broad Experience and well trained staff makes Laboratory well efficient and referral for wet chemical analysis of minerals.
This includes conventional analysis techniques for determination of major elements SiO2 , Al2O3 , CaO , MgO , Fe2O3 , MnO , P2O5 , SO3 , TiO2 , R2O3 , Na2O, K2O, LOI etc.
PHYSICAL PROPERTIES OF CLAY MINERALS
In clays determination of physical properties are more important.
Following facilities are available.
Recovery: recovery by means of washing is carried out in levigation plant.
In china clay, fire clay and plastic clay
Colour and visual examination
Plasticity by handfeel
Water of plasticity
Dry linear shrinkage
Base exchange capacity
Fired property at 900 and 1400 0C
C. In Bentonite
Base exchange capacity
Exchangeable calcium iron
Thin section study is carried out under latest Polarizing Microscopic to identify the mineral assemblages of rocks, alteration of minerals and derived exact nomenclature of the sample.
Besides these model analysis, specific gravity, cutting and polishing characters and compressive strength are also studied in the Petrology Laboratory.