Wiley extractors

HBX-1 Analytical Procedure. Pristera (Ref) briefly describes its analysis as follows Extract TNT wax and lecithin with carbon tetrachloride then determine TNT by titanous reduction as described on p 466 of Ref extract with water the Ca chloride from carbon tetrachloride insoluble residue and extract RDX, with hot toluene, from water-insol residue using Wiley extractor. Extract NC from toluene-insol residue with cyclohexanone, acetone, or tetrahydrofuran the remainder is A1... 

FIGURE 8 Classification of commercial extractors. [Reprinted with permission from Kirk-Orthmer Encyclopedia of Chemical Technology, 4th ed., Vol. 10 (1994), Wiley (Interscience), New York. 1994 John Wiley Sons, Inc.]... 

Fig. 26. Mechanically agitated industrial contactors, (a) mixer-settler (b) rotating-disk column (c) mixco column (d) asymmetric rotating-disk column (e) pulsed packed column (f) Podbielniak centrifugal extractor. (Reprinted from Doraiswamy, L. K and Sharma, M. M., Heterogeneous Reactions Analysis, Examples and Reactor Design, Vols. I and 2, 1984, John Wiley and Sons.)...

Wood is ground to 2-mesh in a Wiley mill, extracted 48 h in a Soxhlet extractor with ethanol-benzene (1 1, v/v), and air-dried. 

An air-dried wood sample is ground successively in a Wiley mill and a vibrational mill to pass an 80-mesh screen (Note 1) The wood meal is extracted continuously with benzene-ethanol (2 1, v/v) in a Soxhlet extractor for 48 h The extracted sample is first air-dried and then dried over P2Os under vacuum for at least one week to completely remove the moisture A moisture-free sample is required for the NE reaction since boron trifluoride will be deactivated to some extent by any residual moisture in the sample... 

A number of semiempirical drop size data correlations have been developed for different types of extractors (static and agitated) including a term for holdup. See Kumar and Hartland, Ind. Eri2. Chem. Res., 35(8), pp. 2682-2695 (1996) and Kumar and Hartland, Chap. 17 in Liquid-Liquid Extraction Equipment, Godfrey and Slater, eds. (Wiley, 1994). These equations predict a characteristic drop size. They do not provide information about the drop size distribution or the minimum drop size. For discussion of minimum drop size, see Zhou and Kresta, Chem. Eng. Sci., 53(11), pp. 2063-2079 (1998). 

FIG. 15-56 Davy CMS extractor with pump-mix impeller and phase separation zones. [Reprinted from Liquid-Liquid Extraction Equipment, Godfrey and Slater, eds. (Wiley, 1994), with permission. Copyright 1994 John Wiley 6- Soils Ltd. ]... 

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