BRUCE R WELLS
Vehicle Board in Pittsburgh, PA
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Pennsylvania MV032042L
Category
Vehicle Board
Type
Vehicle Salesperson
Address
Address
Pittsburgh, PA 15217
Personal information
See more information about BRUCE R WELLS at radaris.comName
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Phone
4 Citadel Dr, Camp Hill, PA 17011
53 E Orchard Ave, Pittsburgh, PA 15202
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Regeneration Of Carbon Employed In The Wet Process Production Of Phosphoric Acid
US Patent:
4299805, Nov 10, 1981
Filed:
Aug 21, 1979
Appl. No.:
6/068316
Inventors:
Bruce D. Wells - Pittsburgh PA
Assignee:
Calgon Corporation - Pittsburgh PA
International Classification:
C01B 2516
US Classification:
423321R
Abstract:
In a process for regenerating the activated carbon and in the purification of brown phosphoric acid or alkali phosphates obtained via the so-called wet process employing mineral acid digestion of crushed phosphate rock, the activated carbon used to filter brown H. sub. 3 PO. sub. 4 is removed from service, washed with water, the initial washings being recovered to reclaim phosphoric acid, and then steeped in a basic aqueous solution, e. g. , aqueous alkali hydroxide, alkali carbonate, ammonium hydroxide, loweralkyl amines or loweralkanol amines. After again water washing the activated carbon, to remove residual base, the activated carbon is either returned to service or steeped in an aqueous solution of mineral acid, e. g. , sulfuric, hydrochloric, or nitric acid, again washed with water to remove residual acid and returned to service. Usually, the acid steep need not be employed with every base cycle to maintain good decolorization, although if desired the acid steep can be used with each caustic cycle.
Regeneration Of Carbon Employed In The Wet Process Production Of Alkali Metal Phosphates
US Patent:
4369168, Jan 18, 1983
Filed:
Jul 21, 1981
Appl. No.:
6/285694
Inventors:
Bruce D. Wells - Pittsburgh PA
Donald D. Tiggelbeck - Pittsburgh PA
Donald D. Tiggelbeck - Pittsburgh PA
Assignee:
Calgon Corporation - Pittsburgh PA
International Classification:
C01B 1516, C01B 2526, C01B 2516
US Classification:
423313
Abstract:
In a process for regenerating the activated carbon and in the purification of brown phosphoric acid or alkali phosphates obtained via the so-called wet process employing mineral acid digestion of crushed phosphate rock, the activated carbon used to filter brown H. sub. 3 PO. sub. 4 is removed from service, washed with water, the initial washings being recovered to reclaim phosphoric acid, and then steeped in a basic aqueous solution, e. g. , aqueous alkali hydroxide, alkali carbonate, ammonium hydroxide, loweralkyl amines or loweralkanol amines. After again water washing the activated carbon, to remove residual base, the activated carbon is either returned to service or steeped in an aqueous solution of mineral acid, e. g. , sulfuric, hydrochloric, or nitric acid, again washed with water to remove residual acid and returned to service. Usually, the acid steep need not be employed with every base cycle to maintain good decolorization, although if desired the acid steep can be used with each caustic cycle.
Use Of Activated Carbon To Remove Dissolved Organics From Uranium Leachate
US Patent:
4519985, May 28, 1985
Filed:
Mar 12, 1980
Appl. No.:
6/129540
Inventors:
Bruce D. Wells - Pittsburgh PA
Assignee:
Calgon Carbon Corporation - Pittsburgh PA
International Classification:
C01G 4300
US Classification:
423 6
Abstract:
Use of activated carbon having a net pore volume of at least 0. 40 cc. /gram for those pores having a pore diameter of from 35 to about 1000. ANG. to remove dissolved organic components from a uranium leachate solution.
Process For Removing Color Bodies From Brown Phosphoric Acid
US Patent:
4297334, Oct 27, 1981
Filed:
Aug 4, 1980
Appl. No.:
6/174979
Inventors:
Thomas A. McConomy - Coraopolis PA
Bruce D. Wells - Pittsburgh PA
Bruce D. Wells - Pittsburgh PA
Assignee:
Calgon Corporation - Pittsburgh PA
International Classification:
C01B 2516
US Classification:
423321R
Abstract:
A system and process for decolorizing and purifying brown phosphoric acid using an activated carbon characterized by having a total pore volume of 1. 0 cc/g or greater with about half of the total pore volume located in pores 35A or less in radius.