ARTICLE MADE OF POROUS CARBONACEOUS MATERIAL AND PROCESS FOR PRODUCING THE SAME

The proposed article, consisting of a porous carbonaceous material (fig.1), is produced by extruding a soft carbonaceous paste through a die, the paste consisting of 30-60% dispersed carbon, a solvent and 2-10 % of a carbon-containing binder. Extrusion takes place at a pressure of 20-60 kg/cm and th...

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Main Authors PLAXIN, GEORGY VALENTINOVICH, DAVYDOVA, VALENTINA JURIEVNA, CHERNYSHOV, ANDREI KIRILLOVICH, BAKLANOVA, OLGA NIKOLAEVNA, SHIM, VALERY VALENTINOVICH, DUPLYAKIN, VALERY KUZMICH, LIKHOLOBOV, VLADIMIR ALEXANDROVICH, ALFEEV, VASILY SERGEEVICH
Format Patent
LanguageEnglish
French
German
Published 24.04.1996
Edition6
Subjects
ARTIFICIAL STONE
CEMENTS
CERAMICS
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
CHEMISTRY
COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS
COMPOUNDS THEREOF
CONCRETE
INORGANIC CHEMISTRY
LIME, MAGNESIA
METALLURGY
NON-METALLIC ELEMENTS
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
REFRACTORIES
SLAG
THEIR RELEVANT APPARATUS
TRANSPORTING
TREATMENT OF NATURAL STONE
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Summary:The proposed article, consisting of a porous carbonaceous material (fig.1), is produced by extruding a soft carbonaceous paste through a die, the paste consisting of 30-60% dispersed carbon, a solvent and 2-10 % of a carbon-containing binder. Extrusion takes place at a pressure of 20-60 kg/cm and the article thus formed is then heat treated, firstly, in a non-oxidizing environment in the presence of hydrocarbons, the ratio of carbon and hydrogen being 0.25-1.0, until the mass of the article has increased by 20-200%, and subsequently in an active environment. According to the invention, the article is produced from three-dimensionally homogeneous carbon with a mesoporous structure and pore-size distributions in the 100-2,000 ANGSTROM and 20-100 ANGSTROM ranges. For each article, the ratio of the outer surface geometry to the volume of material is 4-100 m-1, the ratio of the thickness of the dividing walls between the channels and the outer walls is 1:2- 1:10, and the unit surface area is 100-2,000 m2/g.
Bibliography:Application Number: EP19940921872