Roy Anthony Pickren

US Patent:

6582025, Jun 24, 2003

Filed:

Aug 3, 2001

Appl. No.:

09/920657

Inventors:

Roy Anthony Pickren - New Orleans LA

Assignee:

Crescent Technology, Inc. - New Orleans LA

International Classification:

E21F 1716

US Classification:

299 6, 405 53

Abstract:

A method and a system are provided for the storage and long-term conservation of commercially produced sulfur. An underground cavity is identified and selected from an earth formation such that its permeability and porosity allow sulfur to be retained within the cavity. An impervious borehole that penetrates the cavity from the surface of the earth through the formation is provided, and the sulfur is then injected through the borehole. Solution-mined, salt-enclosed cavities, located at less than about 3,000 feet of depth are preferred. The stored sulfur is withdrawn, when desired, by injecting pressurized hot water, at 280Â-320Â F. , through a first annular space, created within the same borehole, and pressurized air through a second annular space so as to cause the sulfur within the cavity to melt and rise to the surface of the earth through a centric space within the borehole.

US Patent:

6672798, Jan 6, 2004

Filed:

Feb 24, 2003

Appl. No.:

10/372500

Inventors:

Roy Anthony Pickren - New Orleans LA

Assignee:

Crescent Technology, Inc. - New Orleanss LA

International Classification:

E21F 1716

US Classification:

405 53, 299 6

Abstract:

A system is provided for the storage and long-term conservation of commercially produced sulfur. An underground cavity is identified and selected from an earth formation such that its permeability and porosity allow sulfur to be retained within the cavity. A lined impervious borehole that penetrates the cavity from the surface of the earth through the formation and means for injecting the sulfur through the borehole are provided. Solution-mined, salt-enclosed cavities, located at less than about 3,000 feet of depth are preferred. The stored sulfur is withdrawn, when desired, through a pipe arrangement provided with means for injecting pressurized hot water, at 280Â-320Â F. , through a first annular space, created within the same borehole, and pressurized air through a second annular space so as to cause the sulfur within the cavity to melt and rise to the surface of the earth through a centric space within the borehole.

US Patent:

20140000227, Jan 2, 2014

Filed:

Jul 2, 2013

Appl. No.:

13/987128

Inventors:

Roy Anthony Pickren - Baton Rouge LA, US
Roger Jacques Maduell - Mandeville LA, US

Assignee:

CTI Consulting, LLC - New Orleans LA

International Classification:

B01D 45/08

US Classification:

55293

Abstract:

A sulfur particulates remover is provided for removing sulfur particulates from gaseous streams generated in sulfur storage tanks and other types of sulfur containers and carriers. More than 90% of the sulfur particulates are easily removed in most cases. The sulfur particulates remover comprises a conical or prismatic shell structure equipped with vibrators, a cover plate and a stack or similar venting means. A deflector may be mounted inside the shell structure. This system is typically installed on the roof of a liquid sulfur storage tank, pit or other sulfur container using conventional hardware. The lower portion of the particulates remover is preferably a substantially round pipe to which a conical upper portion is attached by welding means or by means of bolts or a support flange. No steam, cooling water or any other external-source heating or cooling is necessary in the operation of the system.

US Patent:

20140045129, Feb 13, 2014

Filed:

Jul 22, 2013

Appl. No.:

13/987397

Inventors:

Roy Anthony Pickren - Baton Rouge LA, US
Roger Jacques Maduell - Mandeville LA, US
David Brian Singleton - New Orleans LA, US

Assignee:

CTI Consulting, LLC - New Orleans LA

International Classification:

F27D 3/00

US Classification:

432 9, 1263435 A

Abstract:

A system and a method are provided for melting solid sulfur and maintaining the resulting molten sulfur in liquid state. The system and the method may be fabricated, installed and operated at low capital costs, with high throughput rates at high operating efficiencies and low maintenance costs. Specific embodiments of the invention include modular and non-modular designs, which may be installed and operated with low to high degrees of automation, allowing the user to tailor the final configuration to meet specific requirements. The system of the invention comprises a specific configuration of a prescribed solid sulfur feed unit, a prescribed high-capacity melting unit, a compartmentalized pump tank assembly, and a heat exchanger located outside the high-capacity melting unit. The method provided follows the configuration of the system.

US Patent:

52366766, Aug 17, 1993

Filed:

Jun 11, 1992

Appl. No.:

7/897000

Inventors:

Freddie J. Touro - New Orleans LA
Roy A. Pickren - Baton Rouge LA

Assignee:

Freeport-McMoRan, Inc. - New Orleans LA

International Classification:

C22B 312

US Classification:

423 29

Abstract:

A method and apparatus are described for recovering gold from aqueous slurries of refractory gold ores containing sulfidic and/or carbonaceous matter. The method entails pretreating an ore slurry with chlorine in a multi-compartment autoclave operated at an elevated pressure. The chlorine used in this pressure chlorination pretreatment can be in either the gaseous or liquid state. Following the removal of residual chlorine from the pretreated ore slurry, said slurry is transferred to a conventional cyanide leach/carbon adsorption circuit to recover the gold values.