A method for pacifying the spent bed material resulting from the synthesis of organohalosilanes and halosilanes by mixing clay with spent bed material. Clay compositions containing at least 10 weight % of clay and spent bed material, as well as ceramic compositions containing spent bed material, are also provided.

A clay plaster formulation and application. The clay plaster is a mixture of various clays, and aggregate. This plaster is both functional and decorative and is for use on new and existing construction.

A method of making clay pigeons is disclosed involving the step of compacting a dry powder comprising an inorganic filler comprising more than 50% by weight calcium carbonate and a binder. Also disclosed is a dry pressed pitchless clay pigeon.

A process for preparing a ball clay slurry with a casting rate of at least about 50, a modulus of rupture of at least 500 pounds per square inch, and from about 0.1 to about 1.0 weight percent of organic polyelectrolyte. In this process, a digested lignite material is mixed with a lignitic coarse clay, a nonlignitic coarse clay, a lignitic fine clay, and a polyelectrolyte dispersing agent.

A clay slurry containing 50% or more of non-volatile solids comprising calcined kaolin clay and from 8 - 331/3% of hydrated kaolin clay based on the weight of the calcined clay. Additionally the slurry contains from 0.01% to 10% of a suspending agent such as bentonite clay, hydroxyethyl cellulose, methyl cellulose, carboxymethyl cellulose and a dispersant such as a non-ionic surfactant, an anionic surfactant or an alkanolamine.

A method of bleaching discolored mineral comprising forming an aqueous slurry of said mineral, adding a small amount of water soluble sodium hypochlorite and a small amount of hydrogen peroxide to said slurry and then adding a water soluble hydrosulfite to said slurry.

A method of bleaching a clay which comprises forming an aqueous suspension of the clay and contacting said aqueous suspension of the clay with a gas comprising ozone.

A blended, stable ball clay/water slurry, wherein: 1. the slurry comprises from about 58 to about 68 weight percent of ball clay, from about 42 to about 32 weight percent of water, from about 50 to about 650 parts per million (by dry weight of ball clay) of soluble sulfate ion, and from about 0.01 to about 1.0 percent of organic polyelectrolyte (weight of active ingredient by weight of dry ball clay) with a molecular weight of from about 1400 to about 6000; 2. the slurry, when freshly made has a...

A method for activating smectite clays to give swelling power and/or dispersibility in an aqueous electrolyte solution and resulting activated smectite clays are disclosed, the method comprising previously adding an adequate amount of an aprotic polar solvent having a higher relative permittivity than those of alcohols (e.g., N,N-dimethylformamide, N,N-dimethylacetamide, ethylene carbonate, propylene carbonate or dimethyl sulfoxide) to an aqueous electrolyte solution in which the clays (or the c...

There is disclosed a method for improving the rheological properties of a clay mineral which, when dispersed with water, either releases into solution or retains on its surface multivalent cations, which method includes the step of treating the clay mineral in aqueous suspension with an aluminosiliceous material having a cation exchange capacity of at least 50 meq/100 g, said aluminosiliceous material being employed in an amount sufficient to react with a significant proportion of the exchangeab...