1
Selmeczi Joseph G: Process for the removal of oxides of sulfur from a gaseous stream. Dravo Corporation, Parmelee Miller Welsh & Kratz, November 11, 1975: US3919394 (29 worldwide citation)

The removal of oxides of sulfur from gaseous streams is increased by the addition of magnesium oxide or magnesium hydroxide to a calcium hydroxide scrubbing liquor in an amount sufficient to provide magnesium ions in the liquor, upon introduction to a scrubbing unit, of between 250 and 5000 parts pe ...


2
Selmeczi Joseph G: Process for sulfur dioxide removal from combustion gases. Dravo Corporation, Parmelee Miller Welsh & Kratz, November 11, 1975: US3919393 (18 worldwide citation)

An improved process for the removal of sulfur dioxide from gases resulting from combustion of sulfur-containing fuels such as coal, with the gases passed through a wet scrubber to which there is added an aqueous solution of calcium oxide containing 2-10% magnesium oxide, whereby the effeciency of su ...


3
Selmeczi Joseph G: Process for wet scrubbing of sulfur dioxide from flue gas. Dravo Corporation, Parmelee Miller Welsh & Kratz, October 21, 1975: US3914378 (17 worldwide citation)

A process for removing sulfur dioxide from flue gas by a wet scrubbing system having a demister unit and wherein addition of a specified amount of magnesium ion to the lime scrubbing slurry is made, with the thickener overflow used as demister water without substantial scaling or solid deposition. A ...


4
Selmeczi Joseph G, Kestner Daniel W: Sludge stabilization with gypsum. Dravo Corporation, Parmelee Miller Welsh & Kratz, December 17, 1974: US3855391 (15 worldwide citation)

A sulfur dioxide scrubber waste sludge is stabilized using plaster of paris to produce a stable landfill material. The scrubbing liquor is provided with a catalyst which optimizes the production of calcium sulfate as a solid sulfur compound in the scrubber waste. The calcium sulfate is separated fro ...


5
Selmeczi Joseph G, Marlin Donald H, Kestner Daniel W: Stabilization of sludge slurries. Dravo Corporation, Parmelee Miller Welsh & Kratz, November 18, 1975: US3920795 (14 worldwide citation)

The stabilization of aqueous sludge slurries containing calcium components is effected by the addition thereto of a granulated blast furnace slag. The aqueous sludge slurry should be dewatered such that the slurry contains about 25 to 60% solids and 75 to 40% aqueous portions, and the granulated bla ...


6
Selmeczi Joseph G: Process for the removal of oxides of sulfur from a gaseous stream. Dravo Corporation, Parmelee Miller Welsh & Kratz, September 23, 1975: US3907970 (4 worldwide citation)

The removal of oxides of sulfur from gaseous streams is increased by the addition of magnesium oxide or magnesium hydroxide to a calcium hydroxide scrubbing liquor in an amount sufficient to provide magnesium ions in the liquor, upon introduction to a scrubbing unit, of between 250 and 5000 parts pe ...


7
Selmeczi Joseph G, Vlnaty Joseph: Desulfurization of coal. Dravo Corporation, Parmelee Miller Welsh & Kratz, May 27, 1975: US3886048 (1 worldwide citation)

A method for carbonizing and desulfurizing carbonaceous materials by heating the carbonaceous material admixed with iron in a reducing atmosphere between 1,200.degree. and 1,700.degree.F and, subsequently, subjecting the resulting char to an oxidizing atmosphere at a temperature between 800.degree.- ...


8
Coate David W, Selmeczi Joseph G: Apparatus and process for the dewatering of fine granular materials. Dravo, July 31, 1985: GB2151939-A

An apparatus and process for the dewatering of fine granular material is disclosed. The apparatus (1) comprises a base member (2), a compressing member (3), and a housing member (4) together defining an enclosed compression chamber (6). During compression of the material (7), fluid (12) is expressed ...


9
Selmeczi Joseph G: Methode dextraction de loxyde de soufre en presence dans les gaz dechappement, Process for sulfur dioxide removal from combustion gases. Dravo Corporation, December 12, 1978: CA1043983

ABSTRACT OF THE DISCLOSURE The present invention relates to an improved processfor the removal of sulfur dioxide from gases resulting fromcombustion of sulfur-containing fuels such as coal, with thegases passed through a wet scrubber to which there is added anaqueous solution of calcium oxide contai ...


10
Selmeczi Joseph G: Methode depuration par voie humide pour lextraction de loxyde de soufre en presence dans les gaz de carneau, Process for wet scrubbing of sulfur dioxide from flue gas. Dravo Corporation, December 12, 1978: CA1043984

Abstract of the Disclosure A process for removing sulfur dioxide from flue gas bya wet scrubbing system having a demister unit and wherein addi-tion of a specified amount of magnesium ion to the lime scrubbingslurry is made, with the thickener overflow used as demisterwater without substantial scali ...