SYSTEM AND METHOD FOR REFINING TIN

PROBLEM TO BE SOLVED: To provide a system and a method for refining tin by which tin is recovered from a solder containing lead, and the lead can be removed as a result. SOLUTION: The system for refining tin is provided with a refining apparatus (10) for tin and a cooling medium supplying mechanism...

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Bibliographische Detailangaben
Hauptverfasser:	YAMADA SEIJI, ISOTANI MITSUTOSHI, CHO SUSUMU, HAMASHIMA YOSHIO
Format:	Patent
Sprache:	eng
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:	PROBLEM TO BE SOLVED: To provide a system and a method for refining tin by which tin is recovered from a solder containing lead, and the lead can be removed as a result. SOLUTION: The system for refining tin is provided with a refining apparatus (10) for tin and a cooling medium supplying mechanism (cooling medium circulating mechanism 50) for supplying a cooling medium (for example, a liquid-phase cooling medium such as cooling water) to the refining apparatus (10). The refining apparatus (10) is provided with a melting furnace (8) for storing the molten solder (while holding the temperature), and a rotary cooling body (1) which is dipped into the molten solder and on the surface of which tin is crystallized, wherein the side surface part (2a) of the rotary cooling body (1) is processed into such a shape (2c) that the crystallized nucleus of the tin to be crystallized can remain and the stress concentration does not occur on the rotary cooling body (1). COPYRIGHT: (C)2010,JPO&INPIT