Laboratory Services

MSI has its own accredited testing laboratory for compliance with the requirements of DSTU ISO/IEC 17025:2019 (ISO/IES 17025:2017) and full compliance with both international and local standards and methodology.

Product analysis is a set of research methods to determine the composition and properties of the material. The conducted chemical and technical analysis gives our customer a clear idea of the conformity of the product quality indicators declared by the manufacturer or seller.

Modern and high-precision equipment from leading world manufacturers (MEMMERT, CARBOLITE, ELTRA, IKA) allows to promptly provide a wide range of laboratory analyzes of metals and their alloys, minerals and fuels.

 

 

 

MCI Lab tests the following products: solid mineral fuels, brown coal, lignite, bituminous coal, anthracite, oil shale, briquettes, coke,carbon-containing materials, thermal anthracite.

  • 1. Proximate analysis:

Technical analysis of solid mineral fuels includes determination of moisture, ash, volatiles and calculation of Fixed carbon. The results are converted to various fuel bases. Indicators of technical analysis (analytical moisture, ash content, volatiles yield) are determined from an analytical sample brought to an air-dry state. Net/Gross Calorific Value determination.

  • 2. Determination of gross calorific value and calculation of net calorific value.
  • 3. Ultimate analysis:

Determination of mass fractions of carbon, hydrogen, nitrogen, Sulphur in solid mineral fuel and calculation of the mass fraction of oxygen by difference. The results of the determination of carbon, hydrogen, nitrogen, oxygen and sulphur recalculated for the corresponding basis are the results of elemental analysis.

  • 4. Petrography:

Petrographic composition of coal: Quantitative characteristics of coal according to the content of the main groups of macerals, microlithotypes, lithotypes, and mineral inclusions. Coal petrography is determined by analysis of polished coal briquettes prepared from coal samples with a particle size of less than 1 mm. The grade of coal is determined according to measurements of the percentage of light reflected by a vitrinite type maceral. The type of coal is determined using the procedure for calculating the volume percentage of various macerals or carbonated plant residues. Petrographic analysis can also be used to detect impurities in coal and oxidized coal in a sample.

  • 5. Definitions of plastometric indicators of coal, coking ability:

1. Definition of plastometric indices on the Sapozhnikov apparatus (х, у); A method for assessing the ability of coal to go into a plastic state when heated under specified conditions. The method is intended to determine the values of the ductility indicators of coals and their mixtures used for coking and for other purposes, where the ability of coals to go into the plastic state of coals is of practical importance.
2. Determination of sintering ability of coal. Roga Index. An indicator characterizing the sintering ability of coal and determined by the strength of the non-volatile residue obtained by rapidly heating a mixture of coal with an inert material under the conditions established by the standard.

  • 6. Determination of coke reactivity (CRI) and coke strength after reaction (CSR);

A portion of coke prepared for testing (part of a dry sample), with a particle size of 19.0 to 22.4 mm, is heated in the reactor chamber to 1100 °C in a nitrogen atmosphere. For the test,the nitrogen atmosphere is replaced with carbon dioxide for exactly 2 hours. After the test, the reaction chamber is cooled to approximatelyLaboratory Services50 °C in a nitrogen atmosphere. The reactivity index (CRI) is defined as the difference in the mass of a portion of coke before and after the reaction with carbon dioxide, expressed as a percentage of the mass of the portion before the reaction. The remaining (unreacted) coke is processed in a specially designed drum making 600 revolutions in 30 minutes. The coke strength after reaction (CSR) is determined by sieving and weighing the coke remaining on the sieve with a hole size of 10.0 or 9.5 mm.

  • 7. Mechanical tests:

1. Granulometric composition (sizing test of coal, coke): Characteristics of coal, coke reflecting the mass fraction of pieces of different particle sizes in the test sample.
2. Mechanical strength; The method consists in machining in a rotating drum a coke sample with a piece size of 20 mm or more with a known size distribution. The degree of destruction of coke is estimated by determining the particle size distribution after 100 revolutions of the drum (Micum test) and, if necessary, after 500 revolutions of the drum (Irsid test).

  • 8. Ash Chemical Composition.

Chemical composition of solid mineral fuel ash means the content of the main 11 elements in the ash in terms of oxides: silicon, aluminum, ferric iron, calcium, magnesium, titanium, phosphorus, manganese, potassium, sodium and sulphur.

  • 9. Ash Fusion Temperature (AFT).

The tested ash sample is heated under standard conditions under constant observation. The temperatures at which characteristic changes in the shape of the sample occur are recorded.

MCI also analyzes the following products: Iron, manganese, titanium, chromium ores, agglomerates, iron pellets, ferroalloys, clay and kaolin, shale.