IMPROVED THERMOPLASTIC CARBON PRECURSOR MATERIAL FOR APPLICATION IN COATING, BINDING, AND IMPREGNATION PROCESSES FOR THE MANUFACTURING OF ELECTRODES FOR STEEL AND ALUMINUM PRODUCTION AND BATTERIES

The present invention is directed to a carbon precursor material characterized by a flashpoint above 290°C and a softening point between 110 and 300°C Mettler and comprising petroleum- derived pitch product derived from a petroleum-based raw material having a concentration of less than 40% by weight...

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Bibliographische Detailangaben
Hauptverfasser:	CLAES, JORIS, KUHNT, CHRISTOPHER, SPAHR, MICHAEL, DENOO, BRAM
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	APPARATUS THEREFOR ARTIFICIAL STONE BASIC ELECTRIC ELEMENTS CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE ELECTRIC HEATING ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FUELS LIME, MAGNESIA LUBRICANTS METALLURGY PEAT PETROLEUM, GAS OR COKE INDUSTRIES PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY ORREFINING OF METALS PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY PYROLIGNEOUS ACID REFRACTORIES SLAG TECHNICAL GASES CONTAINING CARBON MONOXIDE TREATMENT OF NATURAL STONE WORKING-UP PITCH, ASPHALT, BITUMEN, TAR
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Beschreibung
Zusammenfassung:	The present invention is directed to a carbon precursor material characterized by a flashpoint above 290°C and a softening point between 110 and 300°C Mettler and comprising petroleum- derived pitch product derived from a petroleum-based raw material having a concentration of less than 40% by weight of asphaltenes as measured by SARA analysis. Further, the present invention is directed to the use of such carbon precursor material in binding/coating/impregnation processes in the production of graphite electrodes for electric arc furnaces used in steel/ferro- alloy/silicon production or in carbon electrodes for aluminum production and/or manufacture of graphite particles for the manufacturing of battery electrodes. The present invention is further directed to a carbon or graphite electrode comprising said pitch binder in converted state, and in particular a battery electrode. The present invention provides also a process for producing a coating and/or binding and/or impregnation carbon precursor material comprising a petroleum- derived pitch product, the process comprising the steps of providing petroleum-based raw material having a concentration of less than 40% by weight of asphaltenes measured by SARA analysis, thermally treating said petroleum-based raw material above 300°C at atmospheric pressure, and subsequently distill the thermally treated material, thereby obtaining a distillation residue being said petroleum-derived pitch product. La présente invention concerne un matériau précurseur de carbone caractérisé par un point éclair supérieur à 290 °C et un point de ramollissement compris entre 110 et 300 °C et comprenant un produit de brai de pétrole dérivé d'une matière première à base de pétrole ayant une concentration inférieure à 40 % en poids d'asphaltènes telle que mesurée par analyse SARA. En outre, la présente invention concerne l'utilisation d'un tel matériau précurseur de carbone dans des procédés de liaison/revêtement/imprégnation dans la production d'électrodes en graphite pour des fours électriques à arc utilisés dans la production d'acier/ferro-alliage/silicium ou dans des électrodes de carbone pour la production et/ou la fabrication d'aluminium de particules de graphite pour la fabrication d'électrodes de batterie. La présente invention concerne en outre une électrode de carbone ou de graphite comprenant ledit liant de brai dans un état converti, et en particulier une électrode de batterie. La présente invention concerne également un proc