Procedure for the preparation of microporous ceramic membranes for the separation of gas and liquid mixtures.

THE SEPARATION OF GAS AND LIQUID WITH MEMBRANES HAS BEEN MADE THROUGH ORGANIC POLYMERIC MEMBRANES, WHICH ARE LIMITED BY LOW TEMPERATURE STABILITY AND A SEPARATION MECHANISM THROUGH ADSORPTION OR SOLUBILITY OF THE MEMBRANE OF THE MEMBRANE, OR BY INAGRAIN MEMBRANE. GAS AND LIQUID SEPARATION IS LIMITED BY KNUDSEN DISSEMINATION. THE MEMBRANES OF THIS INVENTION SHOW TEMPERATURE STABILITY UP TO 500 (DEGREES) C AND A GAS SEPARATION WITH SEPARATION FACTORS BETTER THAN THE KNUDSEN LIMIT. THROUGH THE EVAPORATION OF THE E RAY OF METAL OXIDES IN A SUPPORTING MEMBRANE, CONTINUOUS MICROPOROUS INORGANIC MEMBRANES OF ANY DESIRABLE THICKNESS CAN BE PREPARED, WHICH HAVE SUBSTANTIALLY LARGER PORES THAN THE METAL OXIDE MEMBRANE. MEMBRANES ARE POROUS IN STRUCTURE WITH A LIMITED PORE SIZE PORE DISTRIBUTION, WHERE MOST PORES HAVE DIAMETERS LESS THAN 1 NM. THE MEMBRANES CAN BE USED IN ALL THE GAS AND LIQUID SEPARATION AREAS, WHERE THE SELECTIVE SEPARATION OF THE LOWER MOLECULES OF THE MIXTURES IS WANTED (e.g., GAS CONCENTRATION BY THE WITHDRAWAL OF WATER FROM NATURAL GAS, HYDROGEN SYNTHESIS). MEMBRANES MAY ALSO BE USED FOR THE CONCENTRATION OF AQUEOUS SOLUTIONS (FRUIT JUICES WITH RETAINING AROMATIC COMPOUNDS, VITAMINS AND OTHER IMPORTANT COMPOUNDS FOR THE TASTE AND NUTRITIVE VALUE OF JUICE; BIOLOGICAL LIQUIDS SUCH AS LYMPH, BLOOD OR OTHERS WITH RETAINING OF VALUABLE COMPOUNDS, INCLUDING SMALL PEPTIDES, HORMONES, ANTIBIOTICS AND OTHERS) AND FOR THE CONCENTRATION OF ORGANIC SOLUTIONS WITH RETAINING MOLECULES INCLUDING DISSOLVES. MEMBRANES MAY ALSO BE USED FOR THE CONCENTRATION OF WASTEWATER WITH RETENTION OF ORGANIC POLLUTANTS AS PHENOL RESINS AND OIL IN COOKING PLANTS. IF THE MEMBRANES HAVE BEEN MANUFACTURED CATALYTICALLY ACTIVE, THE MEMBRANES MAY ALSO BE USED FOR SELECTIVE DRIVING AND RESISTANT TO THE POISON OF THREE PHASES HETEREOGENICALLY CATALYZED THAT WILL CAUSE THEIR REACTIVE GAS TO BE CAUSED REACTING DUE TO THE WORKLIGHT WITH THE LIQUID, WHICH CONSISTS OF TOO LARGE MOLECULES TO PENETRATE THE PORES.