(METAL) CRYSTALLINE SILICATES RICH IN DEFECTS AND PROCEDURE FOR PREPARING SUCH (METAL) SILICATES.

摘要

METAL MICROPOROUS CRYSTALLINE SILICATES HAVING A MAXIMUM M / SI RATIO OF 0.03, WHERE M REPRESENTS AT LEAST ONE OF AL, FE, B, GA, OR TI, CONTAINING LESS THAN 1% OF WEIGHT OF ORGANIC MATERIAL IN PLATES AND WHICH HAS A RELATIVE DEFAULT RETENTION (RDR) OF A VALUE BETWEEN 0.1 AND 1, WHERE THE RDR VALUE IS DEFINED AS (CC) / (IC), WHERE C REPRESENTS THE PERCENTAGE OF DEFECTS PRESENT, C REPRESENTS THE PERCENTAGE OF RETAINED DEFECTS WHEN THE CORRESPONDING SUBJECT IS SUBMITTED TO AT LEAST 1% OF WEIGHT OF ORGANIC MATERIAL IN PLATES CONTAINING (METAL) CRYSTALLINE SILICATE AT A TEMPERATURE TREATMENT OF 550 C, DURING A PERIOD OF 4 HOURS I REPRESENTS THE PERCENTAGE OF DEFECTS INITIALLY PRESENT IN THE CORRESPONDING (METAL) SILICATE CONTAINING ORGANIC PLATES NOT CALCINATED, AND WHERE I C. SUCH (METAL) SILICATES ARE PREPARED BY SUBMITTING THE (METAL) UNCALINCATED SILICATES CONTAINING ORGANIC PLATES CONTAINING A HEAT TREATMENT, WHICH IS PERFORMED IN THE PRESENCE OF OXYGEN AT A TEMPERATURE OF 400-600 CYA AT A PRESSURE OF 500 MACHINE. AT LEAST 1 HOUR.