METHOD OF PRODUCING GLASS-CARBON-BASED OPEN-PORE MATERIAL

METHOD OF PRODUCING GLASS-CARBON-BASED OPEN-PORE MATERIAL

FIELD: carbon materials. SUBSTANCE: material is designed to be used in chemical engineering to manufacture porous electrodes, filter materials, bubblers, adsorbers, heat-exchange equipment operated in corrosive liquid and gaseous media at high temperatures. Material is prepared from mixture containi...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: BUZYLEV A.E, SHCHUCHKIN M.N, ORLOV A.G, DAVYDJUK V.D
Format: Patent
Sprache:eng
Schlagworte:
ARTIFICIAL STONE
CEMENTS
CERAMICS
CHEMISTRY
COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS
CONCRETE
LIME, MAGNESIA
METALLURGY
REFRACTORIES
SLAG
TREATMENT OF NATURAL STONE
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Beschreibung
Zusammenfassung:FIELD: carbon materials. SUBSTANCE: material is designed to be used in chemical engineering to manufacture porous electrodes, filter materials, bubblers, adsorbers, heat-exchange equipment operated in corrosive liquid and gaseous media at high temperatures. Material is prepared from mixture containing liquid phenol-formaldehyde resin and oxalic acid powder as pore agent and acid hardener. Because of high solubility of oxalic acid in water, 98% of pore agent can be removed for 20-30 min. Non-dried material is then subjected to heat treatment in closed mold where 100% removal of pore agent is accomplished. Invention allows size and volume of pores to be controlled within a large range (10-100 mcm) by means of controlling fractional makeup of pore agent, can be many times reused. EFFECT: enhanced process efficiency and facilitated production of material with controllable quality. 1 tblE