THE METHOD OF RECYCLING NI FROM FE-NI ALLOY SCRAP AND THE EQUIPMENT FOR THEREOF

• Main Authors: YUN, JUNG YEUL, LEE, HYE MOON, LEE, DONG WON
• Format: Patent
• Language: English; Korean
• Published: 13.11.2013
• Subjects: 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

The purpose of the present invention is to provide an Ni collecting method from Fe-Ni alloy scrap and an Ni collecting apparatus from Fe-Ni alloy scrap, wherein the Ni collecting method from Fe-Ni alloy scrap comprises: a step for injecting Fe-Ni alloy scrap into the molten metal of heated magnesium in an inert atmosphere (step 1); a step for melting Ni components in the Fe-Ni alloy scrap in the molten metal (step 2); a step for removing Fe in a solid state; and a step for evaporating magnesium from the molten magnesium having melted Ni (step 4). The present invention provides the Ni collecting apparatus for performing a collection work for collecting high purity Ni from the Fe-Ni alloy scrap which comprises: a reactor; a molten metal container that is located at the lower end of the inside of the reactor and which contains the Fe-Ni scrap; a scrap container that is located inside the reactor and movable vertically inside the reactor and which has a plurality of holes on the surface thereof; a heating unit that is provided on the outer circumferential surface of the lower end of the reactor; a cooling unit that is provided on the outer circumferential surface of the lower end thereof; a cooling unit that is provided on the outer circumferential surface of the middle end thereof; an inert gas supply unit that provided on one side of the upper part of the reactor; and a vacuum tube that is provided on one side of the upper part of the reactor.