PROCESS AND APPARATUS FOR CONTINUOUS WORK-UP OF PHOSPHORUS-CONTAINING RESIDUES

Continuous work-up of moist, phosphorus-containing residues, particularly of residues which originate from the filtration of yellow phosphorus or phosphorus-containing effluent water. To this end, intimate contact is produced, in an electrical precipitation zone adapted to free phosphorus furnace ga...

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Bibliographische Detailangaben
Hauptverfasser:	THUMMLER U,DT, WERNER H,DT, EBERT H,DT
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY COMPOUNDS THEREOF INORGANIC CHEMISTRY MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLIDMATERIALS OR FLUIDS MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROMSOLID MATERIALS OR FLUIDS METALLURGY NON-METALLIC ELEMENTS PERFORMING OPERATIONS SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATICTABLES OR JIGS TRANSPORTING
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Beschreibung
Zusammenfassung:	Continuous work-up of moist, phosphorus-containing residues, particularly of residues which originate from the filtration of yellow phosphorus or phosphorus-containing effluent water. To this end, intimate contact is produced, in an electrical precipitation zone adapted to free phosphorus furnace gas from dust, between the moist phosphorus-containing residue and hot dust originating from phosphorus furnace gas and covering the bottom portion of said electrical precipitation zone. Residue and dust are contacted in a quantitative ratio between 1 and 2. Resulting, substantially phosphorus-free residue is mechanically removed from the electrical precipitation zone together with dust precipitated from the phosphorus furnace gas, in the electrical precipitation zone. A phosphorus/water-mixture produced by vaporization of the moist residue is passed through the electrical precipitation zone and the mixture is introduced jointly with dust-free phosphorus furnace gas coming from the precipitation zone into a condensation zone placed downstream of the precipitation zone, wherein the mixture and dust-free phosphorus furnace gas are precipitated.