Fuller’s earth clays

Diheterolevulosans (difructose dianhydrides) are obtained by refluxing concentrated aqueous solutions of D-fructose.96 97 Chromatography of Cuban blackstrap molasses in a pilot-plant-scale chromatogram on fuller s earth clay did not reveal the presence of these substances.98... 

The concentration of fats and related substances in molasses is low analytical values depend on the extracting solvent.126 These tenaciously retained materials can be removed by fractionation of blackstrap on fuller s earth clay.70 Chromatography on a calcium silicate of the fat fraction of Cuban molasses led to the isolation of melissyl alcohol, a phytosterol fraction, chlorophyll a and a fat fraction containing a glyceride of linoleic acid.70 Stigmasterol and syringic acid are reported as ether-extractable constituents of molasses.127... 

The ether extract of cane molasses yields an acidic substance with the characteristic odor of raw sugar.128 The steam distillation of molasses is stated to yield a rum oil. 129 Fractionation of cane final molasses on fuller s earth clay produces a concentrate with a strong molasses odor.70 The infrared spectra of the volatile portion of this concentrate indicated the absence of hydroxyl and carbonyl and the presence of a substituted benzene structure, of paraffinic methylene and methyl groups, of an acetate group, and of the > C=C < and —C=C— linkages. The presence of a sulfur function is probable. Further chromatography indicated complexity in this volatile concentrate.180... 

B. W. Lew, M. L. Wolfrom and R. M. Goepp, Jr., J. Am. Chem. Soc., 68, 1449 (1946). A suitable fuller s earth clay was Florex XXX it was produced by the Flori-din Co., Warren, Pa. Other selective clays were Floridin XXX (Floridin Co., Warren, Pa.), Types A and AA Attapulgus Clays (Attapulgus Clay Co., Attapulgus, Ga.), Bleaching Clay 260 (Industrial Minerals and Chemical Co., Berkeley, Calif.), and J. Neutrol (Filtrol Corp., Los Angeles, Calif.). 

Chromatographic Adsorption Series, on Fuller s Earth Clay, of Carbohydrates and Some Related Substances ... 

Fig. 9.—Chromatography on Fuller s Earth Clay of a Fraction from Cuban, Blackstrap Molasses. [The Developer was Azeotropic Ethanol from X to Y, and Etha-nol/Water (90/10) from Y to Z.]...

Fuller s earth clay is capable of some unusual and difficult separations of sugars, and because of its comparatively light color this adsorbent is adaptable to extrusion, streak-reagent chromatography furthermore, it is cheap. Most organic solvents pass rapidly through columns of clay. The... 

That silica and silicates possess strong absorptive power has been known for a long time as witness the use of diatomaceous earth, fuller s earth, clay, talc, etc. for adsorptive, absorptive and decolorizing processes. Silica gel is prepared from... 

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