NOBLE METAL ADSORBENT, AND RECOVERY METHOD OF NOBLE METAL

PROBLEM TO BE SOLVED: To provide a noble metal adsorbent and a recovery method of a noble metal, which can separate and recover a specific kind of a noble metal from other noble metals and base metals.SOLUTION: The noble metal adsorbent is prepared by chemically modifying algae, residues thereof, or...

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Bibliographische Detailangaben
Hauptverfasser:	FUKUDA HIROAKI, KAWAKITA HIDETAKA, KURATA MINORU, INOUE KATSUTOSHI, KHUNATHAI KANJANA, OWATARI KEISUKE, ATSUMI KINYA
Format:	Patent
Sprache:	eng
Schlagworte:	BEER BIOCHEMISTRY CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS COMPOSITIONS THEREOF CULTURE MEDIA ENZYMOLOGY 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 MICROBIOLOGY MICROORGANISMS OR ENZYMES MUTATION OR GENETIC ENGINEERING PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PRETREATMENT OF RAW MATERIALS PRODUCTION AND REFINING OF METALS PROPAGATING, PRESERVING OR MAINTAINING MICROORGANISMS SPIRITS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE THEIR RELEVANT APPARATUS TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS VINEGAR WINE
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a noble metal adsorbent and a recovery method of a noble metal, which can separate and recover a specific kind of a noble metal from other noble metals and base metals.SOLUTION: The noble metal adsorbent is prepared by chemically modifying algae, residues thereof, or strong acid-treated substances thereof with a functional group containing a nitrogen atom and/or a sulfur atom. The functional group includes, for example, dithiooxamide or a polyethyleneimine. The noble metal adsorbent has an application to adsorption of platinum or palladium. A noble metal dissolved in a solution is made to be adsorbed by a noble metal adsorbent described in claim 1, 2 or 3 to thereby recover the noble metal.