| abstract |
THIS INVENTION CONCERNS A PROCEDURE FOR THE PREPARATION OF A POROUS MICRO-TABLED MATERIAL, WHICH INCLUDES: 6}, A HYDROXIDE OF TETRAALKYLAMONY THAT HAS THE FORMULA R {SUB, 1} (R {SUB, 2}) {SUB, 3} N UILO C {SUB, 3} {SUB, 3} METAL MPUESTOS, IN WHICH THE MOLAR RELATIONSHIP ARE WITHIN THE FOLLOWING INTERVALS: 20; {SUB, 2} O / SIO {SUB, 2} = 1-40; 0.002; B) THE SUBMISSION OF THIS MIXTURE TO HYDROLYSIS AND THE SUBSEQUENT QUELATION AT A TEMPERATURE BETWEEN 20 (GRADES) C AND A TEMPERATURE CLOSE TO THE POINTS OF ALCOHOL OR MIXTURE OF THE PRESENT ALCOHOLS; C) SUBMISSION OF THE GEL OBTAINED TO DRYING AND CALCINATION. THE MATERIAL SO OBTAINED IS CHARACTERIZED BY A SURFACE AREA OF MORE THAN 500 M {SUP, 2} / G, A PUT VOLUME BETWEEN 0.3 AND 1.3 ML / G, A MEDIUM PORE DIAMETER OF LESS THAN 40 AND A X-ray DIFRACTION SPECTRUM (XRD) OF THE POWDER THAT DOES NOT HAVE A CRYSTAL STRUCTURE, BUT POSSIBLY A GENERALIZED "DISPERSION" WITH ANGULAR VALUES OF NO MORE THAN 2 {ZE} = 5 (GRADES). THIS MATERIAL CAN BE CONVENIENTLY USED AS A HETEROGENEO CATALYST, AS AN ADSORBENT OR A VEHICLE FOR CATALYSTS IN INDUSTRIAL PROCEDURES, IN THE FIELDS OF REFINATION, PETROCHEMISTRY, BASIC CHEMISTRY AND CHEMISTRY OF PURE PRODUCTS. |