PROCEDURE FOR REFINEMENT OF IRON ORE FROM ARSENIC AND PHOSPHORUS

FIELD: metallurgy. ^ SUBSTANCE: procedure consists in crumbling ore, in its mixing with carbon reducer and in mixture sintering. Also, before sintering ore is additionally mixed with carbonate slime; mixture is sintered in oxygen containing medium. Upon sintering arsenic and phosphorus are leached w...

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Hauptverfasser:	VITER VALERIJ GRIGOR'EVICH, IL'JASHOV MIKHAIL ALEKSANDROVICH, KOVZUN IGOR' GRIGOR'EVICH, PROTSENKO IRINA TIMOFEEVNA, FILATOV JURIJ VASIL'EVICH, JUSHKOV EVGENIJ ALEKSANDROVICH, VOLOVIK VLADIMIR PETROVICH, UL'BERG ZOJA RUDOL'FOVNA
Format:	Patent
Sprache:	eng ; rus
Schlagworte:	CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS FERROUS OR NON-FERROUS ALLOYS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS METALLURGY PRETREATMENT OF RAW MATERIALS PRODUCTION AND REFINING OF METALS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	FIELD: metallurgy. ^ SUBSTANCE: procedure consists in crumbling ore, in its mixing with carbon reducer and in mixture sintering. Also, before sintering ore is additionally mixed with carbonate slime; mixture is sintered in oxygen containing medium. Upon sintering arsenic and phosphorus are leached with solution of sodium hydroxide and simultaneously are subjected to wet magnetic concentration. ^ EFFECT: increased contents of iron at low contents of arsenic and phosphorus. ^ 9 cl, 2 tbl, 1 dwg, 11 ex Изобретение относится к способу очистки железной руды от мышьяка и фосфора. Способ включает измельчение руды, ее смешивание с углеродным восстановителем и обжиг смеси. При этом перед обжигом руду дополнительно смешивают с карбонатным шламом и обжиг смеси проводят в кислородсодержащей среде. После обжига проводят выщелачивание мышьяка и фосфора раствором гидроксида натрия с одновременным мокрым магнитным обогащением. Технический результат заключается в увеличении содержания железа при низком содержании мышьяка и фосфора. 8 з.п. ф-лы, 2 табл., 1 ил.