METHOD OF PRODUCTION OF THE DIAPHRAGM WITH THE NANOPOROUS CARBON Russian patent published in 2006 - IPC B01D71/02 B01D67/00 

FIELD: chemical industry; methods of production of the olefins.

SUBSTANCE: the invention presents the method, in which from the source powders, fibers or fabrics consisting of carbides of elements of III-V groups of D.I.Mendeleev's periodic table, or aluminum oxides or silion oxides, or the materials representing glass or carbon fibers form the inorganic billet of the necessary form, in the macropores of the billet introduce the billet reinforcingpyrocarbon or impregnate it with phenol-formaldehyde resins with the subsequent carbonization. After that on the surface of the sintered or reinforced billet apply the gas-impermeable carbide layer of the adjustable depth (10-100 microns) by the gaseous phase depositions at the temperature of 800-1100°C, and then conduct halogenation of the carbide layer at the temperature of 400-1100°C. The method ensures production of the diaphragm suitable for separation of the gaseous mixtures.

EFFECT: the invention ensures production of the diaphragm suitable for separation of the gaseous mixtures.

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