Fullers Earth

Siilfuric acid from iron pyrites Paint pigments roasting of metallic oxides Refractory clays calcination of refractory clay to reduce shrinkage Foundry sand removal of carbon from used foundry sand Fullers earth calcination of fuller s-earth material... 

Absorbents are another class of excipient material used in feed additive premixes. They are used when the drug substance is a liquid or is readily soluble in water, oil, or some other solvent. The liquid is sprayed onto the absorbent in a mixer as the mixer is running. Examples of absorbents are vermiculite, Fullers earth, corn cob fractions, and clay. 

Fullers earth is a type of clay named after a fuller, whose job was to clean cloth, e.g. stripping wool of its grease. Fullers earth removes oils and grease from cloth because of its alkalinity, just like an oven cleaner solution. 

Nonmetallic Minerals Clay, Talc, Kaolin, Fluorspar, Feldspar, Diatoma-ceous Earth, Fullers Earth, Perlite... 

Many other polymerization processes have been patented, but only some of them appear to be developed or under development in 1996. One large-scale process uses an acid montmorrillonite clay and acetic anhydride (209) another process uses strong perfluorosulfonic acid resin catalysts (170,210). The polymerization product in these processes is a poly(tetramethylene ether) with acetate end groups, which have to be removed by alkaline hydrolysis (211) or hydrogenolysis (212). If necessary, the product is then neutralized, eg, with phosphoric acid (213), and the salts removed by filtration. Instead of montmorrillonite clay, other acidic catalysts can be used, such as Fullers earth or zeolites (214—216). 

NG from proplnts A process of selective adsorption is used ie, a benz soln of the various constituents of the compn are selectively adsorbed on mats such as Fullers earth, silicic acid, activated carbon, activated silicates, etc, followed by a desorption process 20... 

R. H. S. Robertson, Fullers Earth a History of Calcium Montmorillonite, Mineralogical Soc. Occasional Publication, Voltuma Press, Hythe, Kent, 1986. 

Fullers earth calcination of fuller s-earth material... 

Fullers earth, oil filter, burned 40 B28 Sugar, granulated 50-55 B26KT... 

Fullers earth, oil filter, raw 35-40 B27 Sugar, raw, cane, or beet 55-65 B36Z ... 

The Langmuir equation has been used to describe adsorption of p carotene from solution onto activated bleaching clays (8) and free fatty acid from isooctane solution by acid-washed rice hull ash (9). Likewise, isotherm analysis of the commercial bleaching of rubber and melon seed oil by Fullers earth, activated carbon, and Fullers earth/activated carbon mixture (10) followed Langmuir behavior at 55°C and 80°C, suggesting the possibility of monolayer adsorption with little competition. This behavior was not observed at 30°C where the isotherm no longer applies, because of desorption. The amount of adsorbent was kept constant while varying... 

Organic removal processes are achieved by adsorption, foam seperation and chemical oxidation. In adsorption activated carbon, silica gel, chitosan fibre, fullers earth etc. are used to absorb impurities from waste water. The sizes from the... 

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