METHOD OF PRODUCING POROUS CERAMIC MATERIAL WITH HIGH HEAT RESISTANCE Russian patent published in 2011 - IPC C04B38/02 

FIELD: chemistry.

SUBSTANCE: invention relates to production of porous ceramic material primarily for heat insulation. The method of producing porous ceramic material comprises the following steps: preparing a first composition in form of a stable aqueous colloidal solution of silicon oxide and alkali metal oxides, preparing a second stable composition in form of a suspension of inorganic and/or organic particles in an organic liquid, the second composition containing compounds which, when the second composition is mixed with the first composition, may destabilise the first composition, thereby forming a gel, and may form an organic polymer mesh with a blowing agent, mixing the first and second compositions to obtain a mixture, obtaining a porous structure in form of a gel from the mixture, where the organic structure supports the formed inorganic structure, hardening the porous structure in form of a gel to obtain a porous ceramic material in which the organic polymer mesh surrounds the inorganic part. The porous ceramic material is obtained using the method given above. The invention is developed in subclaims.

EFFECT: simple, highly environmental friendly production process.

20 cl, 7 ex, 14 tbl, 10 dwg