PRODUCTION OF SULFUR-CONTAINING COMPOUND FROM WASTE ACID STREAM

PROBLEM TO BE SOLVED: To produce recoverable sulfur compounds from waste acid and regenerate acids from sulfur compounds, by spraying a waste acid stream through a low-pressure air assist nozzle to generate a sprayed waste acid stream, and by generating a sulfur dioxide stream from the sprayed waste...

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Bibliographische Detailangaben
Hauptverfasser:	WHITE CONNIE RENE, DAFFT CHARLES ANTHONY
Format:	Patent
Sprache:	eng
Schlagworte:	APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL ATOMISING APPARATUS BLASTING CHEMISTRY COMBUSTION APPARATUS COMBUSTION PROCESSES COMPOUNDS THEREOF CONSUMING WASTE PRODUCTS BY COMBUSTION CREMATION FURNACES HEATING INORGANIC CHEMISTRY LIGHTING MECHANICAL ENGINEERING METALLURGY NON-METALLIC ELEMENTS NOZZLES PERFORMING OPERATIONS SPRAYING APPARATUS SPRAYING OR ATOMISING IN GENERAL TRANSPORTING TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To produce recoverable sulfur compounds from waste acid and regenerate acids from sulfur compounds, by spraying a waste acid stream through a low-pressure air assist nozzle to generate a sprayed waste acid stream, and by generating a sulfur dioxide stream from the sprayed waste acid stream. SOLUTION: A waste acid stream is sprayed through a low-pressure air assist nozzle to generate a sprayed waste acid stream, from which a sulfur dioxide stream is generated. The nozzle has a plurality of orifices, and the spraying the waste acid stream through the low-pressure air assist nozzle produces waste acid droplets having a sorter average diameter of 200 to 700 μm. The generation of the sulfur dioxide from the waste acid stream is carried out in a furnace, of which the operating temperature is set to 800 to 1,200 deg.C. A ratio of air supplied to the spray nozzle to the waste acid is set to 0.01 to 0.1.