METHOD FOR PROCESSING DIAMOND-CONTAINING MINERAL CONCENTRATES AND FOR CHEMICALLY CLEANING THE DIAMOND SURFACES

The invention relates to mineral dressing and can be used by diamond-mining companies. The inventive method consists in loading and chemically enriching a concentrate and in cleaning and unloading a target product. The concentrate enrichment is carried out by single or several treatments in an acid...

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Bibliographische Detailangaben
Hauptverfasser:	FEOFILOV, SERGEI YUREVICH, RUDENKO, VLADIMIR ALEXANDROVICH, KOLODEZNIKOV, VALERY KIMOVICH, MAKSIMOV, ALEKSANDR DMITRIEVICH, GODUN, KONSTANTIN VIKTOROVICH, KAMORNIKOV, SERGEI VLADIMIROVICH, RUDENKO, OLGA ALEXANDROVNA, KOTOV, IGOR YUREVICH, ASTAKHOV, MIKHAIL VASILIEVICH, RUDENKO, ALEXANDR PROKOFEVICH, KULAKOVA, INNA IVANOVNA, ZAITSEV, ALEKSANDR KONSTANTINOVICH
Format:	Patent
Sprache:	eng ; fre ; rus
Schlagworte:	CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS COMPOUNDS THEREOF FERROUS OR NON-FERROUS ALLOYS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS INORGANIC CHEMISTRY METALLURGY NON-METALLIC ELEMENTS 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:	The invention relates to mineral dressing and can be used by diamond-mining companies. The inventive method consists in loading and chemically enriching a concentrate and in cleaning and unloading a target product. The concentrate enrichment is carried out by single or several treatments in an acid or acids, and afterwards in an alkali or in an alkali mixture by heating it up to a temperature ranging from 900 to 1000 °C and holding and agitating in an inert gas atmosphere at said temperature. Said invention makes it possible to increase the diamond cleaning degree. L'invention concerne l'enrichissement de minerais et peut s'utiliser dans des usines d'extraction de diamants. Le procédé comprend le chargement, l'enrichissement chimique du concentré, le nettoyage et le déchargement du produit fini. L'enrichissement du concentré se fait d'abord par un traitement unique ou multiple dans un ou plusieurs acides puis par le traitement dans un alcali ou dans des mélanges d'alcalis, par le réchauffement jusqu'à 900÷1000 °C et par la retenue à cette température dans un milieu de gaz inerte, avec mélangeage. L'invention permet d'augmenter le degré de nettoyage des diamants.