Food powder processing coaling

Fertilizers, Pesticides, Herbicides, Insecticides, Soil Conditioners, Aglime, Dolomite, Trace Minerals, N-P-K raw Materials Instant Drink Mix, Powdered Process Foods, Sugar, Sweetners, Confectionary Mix Coal Fines... 

The use of NIR reflectance has gained considerable interest for process analysis in the food, pharmaceutical, petrochemical, and other chemical industries. This method requires little or no sample preparation and involves measurement of the reflectance of a liquid or solid sample relative to that of a standard in the same wavelength series. As illustrated in Table 3, process NIR has gained considerable use for moisture determination in coal, cosmetics, and detergent powders, as well as for protein contents of cereal and grain, and hydrogenation of unsaturated fats and oils. 

In some cases water may be removed mechanically from solid materials by presses, centrifuging, and other methods. This is cheaper than drying by thermal means for removal of water, which will be discussed here. The moisture content of the final dried product varies depending upon the type of product. Dried salt contains about 0.5% water, coal about 4%, and many food products about 5%. Drying is usually the final processing step before packaging and makes many materials, such as soap powders and dyestuffs, more suitable for handling. 

Examples of the AAS analysis of powdered samples, as well as such solid foods as chocolate and flour, are presented in [ 137]. [ 138J. The direct determination of mercury in soils, coal, and ash is di.scussed in [139]. ICP—OES (and ICP—MS) can also be transformed into a direct process through solid sample introduction and electrothermal pretreatment [140J. 

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