Reforming with alumina-chromiaboria catalyst

Claim 1

A PROCESS FOR REFORMING A PETROLEUM DISTILLATE BOILING WITHIN THE APPROXIMATE RANGE OF 60*F. TO 450*F. WHICH COMPRISES CONTACTING THE SAME AT A TEMPERATURE BETWEEN ABOUT 700*F. AND ABOUT 1000*F. AT A LIQUID HOURLY SPACE VELOCITY BETWEEN ABOUT 0.1 AND ABOUT 10 IN THE PRESENCE OF HYDROGEN UNDER A PRESSURE BETWEEN ABOUT 100 AND ABOUT 1000 POUNDS PER SQUARE INCH GAUGE AND A MOLAR RATIO OF HYDROGEN TO HYDROCARBON BETWEEN ABOUT 1 AND ABOUT 20 WITH A CATALYST CONSISTING ESSENTIALLY OF CHROMIA, ALUMINA AND BORIA PREPARED BY FORMING A CHROMIA-ALUMINA HYDROGEL HAVING A SOLIDS CONTENT CONSISTING ESSENTIALLY OF A MAJOR PROPORTION OF ALUMINA AND A MINOR PROPORTION OF CHROMIA AND CONTAINING BETWEEN ABOUT 70 AND ABOUT 90 PERCENT BY WEIGHT OF WATER RESULTING FROM MIXING AQUEOUS SOLUTIONS OF SODIUM ALUMINATE AND CHROMIC ACETATE TO YIELD A HYDROSOL, CONTROLLING THE SODIUM TO ALUMINUM ION RATIO AND THE ACETATE TO CHROMIUM ION RATIO IN SAID SOLUTIONS TO EFFECT RAPID GELATION OF SAID HYDROSOL TO A HYDROGEL, AGING THE HYDROGEN SO OBTAINED IN A MILDLY ALKALINE AGING MEDIUM, WASHING THE AGED HYDROGEL, INTIMATELY COMBINING THE WASHED HYDROGEL WITH BORIC ACID, DRYING AND CALCINING THE RESULTING COMPOSITE AT A TEMPERATURE NOT IN EXCESS OF 1000*F. TO YIELD A CHROMIA-ALUMINA-BORIA CATALYST CONSISTING ESSENTIALLY OF 10 TO 30 PERCENT BY WEIGHT OF CHROMIA, 50 TO 89 PERCENT BY WEIGHT OF ALUMINA AND 1 TO 20 PERCENT BY WEIGHT OF BORIA.