Francis M Harvey

US Patent:

41029852, Jul 25, 1978

Filed:

Jan 6, 1977

Appl. No.:

5/757545

Inventors:

Francis J. Harvey - Murrysville PA

Assignee:

Westinghouse Electric Corp. - Pittsburgh PA

International Classification:

C01B 3302
C01B 708

US Classification:

423350

Abstract:

A process for the production of high purity silicon characterized by the employment of an electric arc heater in which a silicon halide is reacted with hydrogen to produce liquid silicon and gaseous co-products.

US Patent:

40715884, Jan 31, 1978

Filed:

Dec 9, 1976

Appl. No.:

5/748794

Inventors:

Maurice G. Fey - Plum Borough PA
Charles B. Wolf - Irwin PA
Paul E. Martin - West Mifflin Borough PA
Francis J. Harvey - Murrysville PA

Assignee:

Westinghouse Electric Corporation - Pittsburgh PA

International Classification:

B29C 2300

US Classification:

264 15

Abstract:

A process for the production of magnetic spheres from grit of magnetite ore by introducing the grit into an arc heated gas jet, thus heating the grit to a temperature of at least 1600. degree. C, and allowing the melted magnetite droplets to spheroidize and cool to a solid state.

US Patent:

42093210, Jun 24, 1980

Filed:

Apr 23, 1979

Appl. No.:

6/032325

Inventors:

Francis J. Harvey - Murrysville PA
Maurice G. Fey - Pittsburgh PA

Assignee:

Westinghouse Electric Corp. - Pittsburgh PA

International Classification:

C22B 410
C21C 552

US Classification:

75 10R

Abstract:

A method for melting machine chips characterized by a preheating zone, a prereducer zone, and a melting zone the latter of which is heated by an arc heater through which a reducing inert gas is introduced into the communicating zones, whereby metal chips entering the preheating zone move through the subsequent zones in counterflow to the reducing gas flow.

US Patent:

41069285, Aug 15, 1978

Filed:

Mar 2, 1977

Appl. No.:

5/773457

Inventors:

Francis J. Harvey - Murrysville PA
Maurice G. Fey - Plum Borough PA

Assignee:

Westinghouse Electric Corp. - Pittsburgh PA

International Classification:

C22B 2102

US Classification:

75 68B

Abstract:

A process for the production of aluminum characterized by the steps of chlorinating a material containing chemically combined aluminum and silicon with chlorine to produce aluminum trichloride and silicon tetrachloride, reacting aluminum trichloride with manganese to produce elemental aluminum and manganese chloride, reducing silicon tetrachloride to yield silicon, oxidizing the manganese chloride to produce manganese oxide, and reducing the manganese oxide with silicon to produce manganese which is recycled to the second step for reducing aluminum trichloride.

US Patent:

41027655, Jul 25, 1978

Filed:

Jan 6, 1977

Appl. No.:

5/757546

Inventors:

Maurice G. Fey - Plum Borough PA
Francis J. Harvey - Murrysville PA
Jack McDonald - Penn Hills PA

Assignee:

Westinghouse Electric Corp. - Pittsburgh PA

International Classification:

B01K 100
C01B 3302

US Classification:

204164

Abstract:

A process for producing high purity silicon characterized by the employment of an electric arc heater into which a silicon halide is injected together with a metal reductant such as an alkali metal or an alkaline-earth metal which are reacted together by projecting them tangentially into a reaction chamber to cause the formation of liquid silicon and a gaseous metal halide salt which are separated in a suitable manner such as centrifugally or by condensation.

US Patent:

41394380, Feb 13, 1979

Filed:

Mar 31, 1978

Appl. No.:

5/891992

Inventors:

Maurice G. Fey - Plum Borough PA
Francis J. Harvey - Murrysville PA
Jack McDonald - Penn Hills PA

Assignee:

Westinghouse Electric Corp. - Pittsburgh PA

International Classification:

B01K 100
C01B 3302

US Classification:

204164

Abstract:

A process for producing high purity silicon characterized by the employment of an electric arc heater into which a silicon halide is injected together with a metal reductant such as an alkali metal or an alkaline-earth metal which are reacted together by projecting them tangentially into a reaction chamber to cause the formation of liquid silicon and a gaseous metal halide salt which are separated in a suitable manner such as centrifugally or by condensation.

US Patent:

41027647, Jul 25, 1978

Filed:

Dec 29, 1976

Appl. No.:

5/755383

Inventors:

Francis J. Harvey - Murrysville PA
Maurice G. Fey - Plum Borough PA

Assignee:

Westinghouse Electric Corp. - Pittsburgh PA

International Classification:

B01K 100
C01B 3302

US Classification:

204164

Abstract:

A process for converting silicon intermediates to high purity silicon by an arc heater characterized by the thermal reduction of one of several potential purified silicon intermediate compounds using an arc heater as the reduction energy source and using hydrogen as the reductant.

US Patent:

39751880, Aug 17, 1976

Filed:

Aug 11, 1975

Appl. No.:

5/603577

Inventors:

Francis J. Harvey - Murrysville PA
Maurice G. Fey - Pittsburgh PA

Assignee:

Westinghouse Electric Corporation - Pittsburgh PA

International Classification:

C22D 706

US Classification:

75 14

Abstract:

A process for the reduction of zinc roast in which pulverized particles of zinc roast are fed into an arc heated jet of carbon monoxide, whereby the particles are heated and reduced from zinc oxide to zinc vapor which in turn is quenched with pulverized carbon in an endothermic reaction to yield additional carbon monoxide, after which the vaporized zinc is cooled to room temperature.