High temperatures, quality effects

It is possible to modify the quality of the coke by calcination at high temperatures (1200-1400°C) this has the effect of reducing the volatile material and to increase the density. 

Cheung et al. [702] have evaluated various solvent evaporative high-temperature SEC-FTIR interfaces. This detection approach was initially employed only for qualitative analysis, but is recently also being used quantitatively. For that purpose the polymer film quality generated by the interface is of critical importance (thickness effects). Table 7.76 lists the main features of evaporative SEC-FITR for polymer analysis. 

Control of exudation depends mainly on the suitable choice of the nitrocellulose used. Some lack of uniformity in this product is certainly desirable. This offers no serious difficulty, although it is necessary to ensure a constant watch on manufacturing processes to see that quality is maintained. In other gelatine explosives, particularly those containing ammonium nitrate, exudation can be induced by slow chemical reaction. The addition of alkalis, for example, can liberate ammonia which in turn can react with nitrocellulose and cause it to lose its power of binding nitroglycerine. Such effects are accelerated at high temperatures and under wet conditions and it is usual practice to test all explosives under such adverse conditions before they are put on the market. 

Madhiyanon, T. and Soponronnarit, S., High temperature spouted bed paddy drying with varied downcomer air flows and moisture contents effects on drying kinetics, critical moisture content, and milling quality. Drying Tech., 23 (2005) 473-495. 

Having determined the effect of temperature and NaCl on koji autolysis, the next step in finding an optimal protocol for the rapid production of soy sauce with high flavor quality was to examine die effect of independent and combined effect of lactic acid fermentation and alcohol on koji autolysis. 

Analysis by atomic (or optical) emission spectroscopy is based on the study of radiation emitted by atoms in their excited state, ionised by the effect of high temperature. All elements can be measured by this technique, in contrast to conventional flames that only allow the analysis of a limited number of elements. Emission spectra, which are obtained in an electron rich environment, are more complex than in flame emission. Therefore, the optical part of the spectrometer has to be of very high quality to resolve interferences and matrix effects.-... 

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