Stephen M Lane

US Patent:

57954445, Aug 18, 1998

Filed:

Dec 15, 1994

Appl. No.:

8/356148

Inventors:

John S. Rendall - Albuquerque NM
Stephen J. Lane - Albuquerque NM

Assignee:

Solv-Ex Corporation - Albuquerque NM

International Classification:

C10C 120

US Classification:

196 461

Abstract:

A system and method for immediately separating oil sands into three layers uses a logwasher with paddles that mixes the oil sands with hot water and steam. The three layers of bitumen, clay/sand/water slurry and rock separate effectively and immediately and are not re-mixed in further processing as was conventional, further producing a clay fraction from the fines for mineral processing.

US Patent:

58465120, Dec 8, 1998

Filed:

Dec 4, 1996

Appl. No.:

8/760344

Inventors:

John S. Rendall - Albuquerque NM
Massoud Ahghar - Albuquerque NM
Stephen J. Lane - Albuquerque NM

Assignee:

Solv-Ex Coporation - Albuquerque NM

International Classification:

C01F 732

US Classification:

423628

Abstract:

A method of making activated alumina including the steps of dissolving a double salt of aluminum in a solution of pure water at 85. degree. C. , recrystalizing the double salt at a pressure about 250 psi and temperature ranging from 200. degree. C. to 250. degree. C. , precipitating out the purified basic double salt, drying the precipitated double salt to drive off water and roasting it at 850. degree. C. to 950. degree. C. to drive off the sulfate, washing to remove the potassium sulfate and then drying the remaining alumina to yield activated alumina for use as a high-grade catalyst.

US Patent:

57208689, Feb 24, 1998

Filed:

Apr 19, 1996

Appl. No.:

8/635321

Inventors:

John S. Rendall - Albuquerque NM
Massoud Ahghar - Albuquerque NM
Stephen J. Lane - Albuquerque NM

Assignee:

Solv-Ex Corporation - Albuquerque NM

International Classification:

C25C 306
C01F 100
C01F 702

US Classification:

205372

Abstract:

A method of making activated alumina includes beginning with a leach liquor of potassium and aluminum sulphates that is subjected to a surface-cooled crystallizer with a heat-exchanger input temperature of 160. degree. F. and a surface-chilled temperature of 60. degree. F. Crystals of aluminum sulphate are precipitated and recrystalized by evaporation in a vacuum and at an elevated temperature. Purified crystals of aluminum sulphate are then dried at 50. degree. -60. degree. C. The dried aluminum sulphate crystals are then dehydrated at 400. degree. -450. degree. C. after a rise rate of 50. degree. -60. degree. C. per minute to drive off most of the water. A roasting and recalcination step at 1000. degree. C. -1050. degree. C. after a rise rate of 50. degree. -60. degree. C. per minute is used drive off the sulphate.

US Patent:

57627800, Jun 9, 1998

Filed:

Apr 10, 1996

Appl. No.:

8/630217

Inventors:

John S. Rendall - Albuquerque NM
Stephen J. Lane - Albuquerque NM

Assignee:

Solv-Ex Corporation - Albuquerque NM

International Classification:

C10G 104

US Classification:

208391

Abstract:

A system and method for immediately separating oil sands into three layers uses a logwasher with paddles that mixes the oil sands with hot water and steam. The three layers of bitumen, clay/sand/water slurry and rock separate effectively and immediately and are not re-mixed in further processing as was conventional, further producing a clay fraction from the fines for mineral processing.

US Patent:

56628803, Sep 2, 1997

Filed:

Apr 19, 1996

Appl. No.:

8/635322

Inventors:

John S. Rendall - Albuquerque NM
Massoud Ahghar - Albuquerque NM
Stephen J. Lane - Albuquerque NM

Assignee:

Solv-Ex Corporation - Albuquerque NM

International Classification:

C01F 702
C22B 1300

US Classification:

423628

Abstract:

A method of making activated alumina includes beginning with a leach liquor of potassium and aluminum sulphates that is subjected to a surface-cooled crystallizer with a heat-exchanger input temperature of 160. degree. F. and a surface-chilled temperature of 60. degree. F. to 80. degree. F. Crystals of aluminum sulphate are precipitated and recrystalized by evaporation in a vacuum and at an elevated temperature. Purified crystals of aluminum sulphate are then dried at 50. degree. -60. degree. C. The dried aluminum sulphate crystals are then dehydrated at 400. degree. -450. degree. C. after a rise rate of 10. degree. -20. degree. C. per minute to drive off most of the water. A roasting and recalcination step at 900. degree. C. -950. degree. C. after a rise rate of 10. degree. -20. degree. C. per minute is used drive off the sulphate.