Ray D Peterson, 677927 Hines Valley Rd, Lenoir City, TN 37771

5342428, Aug 30, 1994

Aug 13, 1993

8/106171

John O. Cook - Muscle Shoals AL
Ray D. Peterson - Florence AL

Reynolds Metals Company - Richmond VA

C22B 700

75401

A method for removing free lead from a feed stream of used aluminum beverage cans (UBC) to reduce the total lead content of the feed stream. The UBC material is shredded, heated to a temperature above the lead melting point, and agitated to cause the molten lead to fragment and form small particles. The material is then screened to form a second particle stream containing a large percentage of any free lead present in the feed stream and a third particle stream comprised primarily of shredded UBC. The second particle stream is introduced into a fluidized bed to separate the fines from the aluminum particles, the fines containing the majority of the free lead. The aluminum-enriched remaining particles, after separation from the fines, are conveyed for subsequent reprocessing.

4752328, Jun 21, 1988

Oct 19, 1987

7/109889

Ray D. Peterson - Florence AL

Reynolds Metals Company - Richmond VA

C21B 304

75 24

Spent salt flux from aluminum production has its oxides, aluminum and salt components recovered by dissolving the soluble components in water and evaporating the water to recover the salt components thereof while screening and crushing the insoluble components to separate the aluminum and oxides.

4919543, Apr 24, 1990

Jun 20, 1988

7/208612

Dennis W. Davis - Lawrence County TN
Ray D. Peterson - Florence AL
Walter Posey - Lauderdale County AL

Reynolds Metals Company - Richmond VA

G01K 1300

374139

A probe for measuring the temperatures within a molten metal pool at various vertical levels within the pool is disclosed. The probe includes a plurality of vertically spaced thermocouples protruding from the surface of a refractory block. Also disclosed is a support mechanism for positioning and maintaining the temperature probe within the molten metal pool.

5131988, Jul 21, 1992

Apr 12, 1991

7/684124

Ray D. Peterson - Florence AL

Reynolds Metals Company - Richmond VA

C25C 302
C25C 336
C01D 132
C22B 2612

204 68

An improved method for extracting lithium from aluminum-lithium alloys includes providing an electrorefining cell which contains a cathode comprising a pure molten tin pool and a source of lithium from a molten aluminum-lithium alloy. The lithium is extracted from the Al-Li alloy by applying an electric current through the electrorefining cell whereby lithium dissolves from the molten Al-Li alloy into the tin pool and forms a tin-lithium alloy. The formed Sn-Li alloy may be recovered by casting under a salt layer and cooled to solidification. In a further aspect, the recovered Sn-Li alloy may be processed to further recover lithium therefrom by either electrolytic recovery in a separate electrolytic cell, vacuum distillation or a chemical extraction process.