For composition analysis, raw material was air-dried to the moisture content of 5%to10%0%, and then milled by knife mill (MQF-420, BJZKRF, Beijing, China).
In summary, the variability in sugar yield between cultivars depended not on differences in analyzed chemical composition of raw material, but rather on differences in the removal of hemicellulose, accumulation of ash and (for Skalmeje) particle-size distribution introduced by the pretreatment.
Measurements were made on the plasticity index, oxide composition and mineral composition of raw materials and the linear drying shrinkage, water absorption, bulk density, compressive strength, thermal conductivity and freeze-thaw resistance of the fired brick samples were investigated.
The elemental and chemical compositions of raw material are given in Table 1.
Table 1 Chemical composition of raw materials (wt%).
Monitoring A certificate of the origin and composition of raw materials will be demanded to suppliers.
The composition of raw materials played an important role on mesophase pitch formation.
These simulations could be used in choosing the suitable initial composition for raw materials of liquid phase sintered cemented carbide.
The production and combustion properties of pellets are defined by molecular structure and elemental composition of raw materials.
The characteristic feature of porous ceramics lies in the 3D-channels (tunnels) with diameters of several nm to several μm, which depended on the composition of raw materials and on the sintering temperature.
