William E Webster

US Patent:

40186199, Apr 19, 1977

Filed:

Jan 22, 1976

Appl. No.:

5/651457

Inventors:

William C. Webster - Norristown PA
Charles L. Smith - Conshohocken PA

Assignee:

IU Technology Corporation - Miami FL

International Classification:

C04B 734

US Classification:

106118

Abstract:

Improved cementitious composition results from a process comprised of mechanical size reduction and activation of a mixture of lime and fly ash and the addition thereto of fly ash and aggregate, as needed, to make a mix of the desired proportions. A quicker and more complete reaction between the lime and fly ash results from deagglomeration of lime particles caused by interaction with the fly ash and/or by the increased availability of reactant materials due to particle size reduction of both the lime and the fly ash. The mechanical size reduction and activation process may be carried out, for example, in a ball mill or centrifugal impact mill.

US Patent:

40281302, Jun 7, 1977

Filed:

Nov 15, 1974

Appl. No.:

5/524148

Inventors:

William C. Webster - Norristown PA
Robert G. Hilton - Norristown PA
Ronald F. Cotts - Norristown PA

Assignee:

IU Conversion Systems, Inc. - Philadelphia PA

International Classification:

C04B 100

US Classification:

106120

Abstract:

Digested sewage sludge resulting from sewage plant treatment of municipal sewage is disposed of and used in an ecologically acceptable manner by the incorporation of such sludge in hardenable compositions further including, for example, lime, fly ash and, in some cases, alkaline earth metal sulfates and/or soil or other inert or complimentary additives. These hardenable compositions may be emplaced in an area open to the atmosphere and permitted to cure over a period of time to act as land fill or as road base materials.

US Patent:

43548768, Oct 19, 1982

Filed:

Sep 26, 1980

Appl. No.:

6/191065

Inventors:

William C. Webster - Norristown PA

Assignee:

Webster & Assoc. Ltd. - Norristown PA

International Classification:

C04B 100

US Classification:

106 85

Abstract:

Cured compacted products suitable for use as landfill materials, embankments, roadbase compositions and the like are produced by the described method from fly ash-containing waste materials obtained by a lime based dry scrubbing flue gas desulfurization operation. In this method the dry fly ash-containing waste powder, which also contains calcium sulfite or sulfate reaction products and unreacted lime, is contacted with a predetermined amount of water and mixed under critical mixing conditions to provide a powder/water mixture which is placed at a suitable utilization site, e. g. , a landfill disposal site, and compacted under sufficient load to achieve at least about 70% of the laboratory dry density. The resulting products have compressive strengths after curing of at least about 25 psi and permeabilities of less than 1. times. 10. sup. -5 cm/sec.

US Patent:

42592712, Mar 31, 1981

Filed:

May 4, 1979

Appl. No.:

6/036156

Inventors:

L. John Minnick - Cheltenham PA
William C. Webster - Norristown PA
Charles L. Smith - Conshohocken PA

International Classification:

B01J 202

US Classification:

264 8

Abstract:

Improved method for making generally spherical particulate shot-like product comprising permitting a siliceous-aluminous composition of specified characteristics onto a rotating squirrel cage rotor near top dead center thereof and causing said impinging molten material to be projected in droplet form and cooled while suspended in a gaseous cooling medium, such as air, into an amorphous generally spherical product, suitable for use as an abrasive or filler material.

US Patent:

RE297836, Sep 26, 1978

Filed:

Feb 8, 1977

Appl. No.:

5/766796

Inventors:

Charles L. Smith - Conshohocken PA
William C. Webster - Warminster PA

Assignee:

IU Technology Corporation - Miami FL

International Classification:

C02C 502

US Classification:

210 59

Abstract:

Waste sludges containing small amounts of certain types of reactive materials are treated by adding to such sludges materials capable of producing aluminum ions, lime and/or sulfate bearing compounds to produce a composition having a sufficient concentration of sulfate ions, aluminum ions and equivalents thereof, and calcium ions and equivalents thereof. Fly ash is preferred source of aluminum ions for this purpose. Over a period of time such compositions harden by the formation of calcium sulfo-aluminate hydrates. Hardening of the sludge facilitates its disposition and may permit the reclamation of the land now occupied by large settling ponds for such sludge. Still further, the solidification of such settling ponds may provide permanent land fill which permits immediate use of the land without the necessity for removal of the sludge. Aggregate materials may also be incorporated in the solidified waste.

US Patent:

41536550, May 8, 1979

Filed:

Jul 23, 1976

Appl. No.:

5/708200

Inventors:

Leonard J. Minnick - Cheltenham PA
William C. Webster - Norristown PA
Charles L. Smith - Conshohocken PA

International Classification:

B01J 202

US Classification:

264 8

Abstract:

Methods of making finely divided product from fly ash compositions, including both dry fly ash compositions and aqueous suspensions of fly ash in combination with alkaline earth metal compounds. The fly ash composition, preferably including 10 to 50% combined alkaline earth metal oxides, is heated to molten condition while collecting gases evolving therefrom, including sulfur oxide gases. The top portion of the melt is then poured in a manner causing a molten stream thereof to be divided into a multiplicity of fractions and cooled to solid form while encompassed by a fluid cooling medium in a manner to produce either a shot or a granulated aggregate product. The bottom portion of the melt is nearly pure metallic iron which is recovered, as such, for other uses. Preferably, the molten stream impinges on a rotating member in a manner to produce shot, or is quenched in a water bath to form a granulated type product.