PRECIOUS-METAL ADSORBENT AND METHOD FOR RECOVERING PRECIOUS METAL

A precious-metal adsorbent is chemically modified by a functional group including an N atom and/or an S atom, and is formed from one of an alga, a residue of the alga, a substance obtained by treating the alga with a strong acid, and a substance obtained by treating the residue of the alga with a st...

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Bibliographische Detailangaben
Hauptverfasser:	FUKUDA, HIROAKI, KHUNATHAI, KANJANA, ATSUMI, KINYA, KAWAKITA, HIDETAKA, INOUE, KATSUTOSHI, KURATA, MINORU, OHTO, KEISUKE
Format:	Patent
Sprache:	eng ; fre ; jpn
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:	A precious-metal adsorbent is chemically modified by a functional group including an N atom and/or an S atom, and is formed from one of an alga, a residue of the alga, a substance obtained by treating the alga with a strong acid, and a substance obtained by treating the residue of the alga with a strong acid. Using the present precious-metal adsorbent makes it possible to separate a specific type of precious metal; e.g., platinum or palladium, from other precious metals or base metals, and recover the precious metal. L'agent d'absorption de métaux nobles de l'invention se compose d'au moins un des matériaux suivants : une algue, un résidu de ladite algue, une substance de ladite algue traitée avec un acide fort, ou une substance du résidu de ladite algue traitée avec un acide fort, chimiquement modifiées par un groupe fonctionnel contenant au moins un atome N ou S. À l'aide de cet agent d'absorption de métaux nobles, il est possible de séparer pour les récupérer des variétés spécifiques de métaux nobles, telles que le platine ou le palladium d'autres métaux nobles ou de métaux communs.