Abstract:
Unsaturated aldehydes and carboxylic acids as acrolein or methacrolein and acrylic acid or methacrylic acid are obtained by the reaction of propylene or isobutylene with oxygen at an elevated temperature in the presence of a catalyst containing a mixture of molybdenum oxide, tellurium oxide and an aluminum phosphate.
Abstract:
A hydrotreating catalyst comprising fluorine-containing layered crystalline aluminosilicate particles in a matrix comprising at least one solid oxide and at least one hydrogenating component, said hydrogenating component being selected from Group VI metals and compounds thereof and Group VIII metals and compounds thereof, and processes for making and using said catalyst.
Abstract:
METHOD OF PREPARING POLYURETHANES BY TIME-LAPSE CATALYSIS WHICH COMPRISES: (A) THROUGHLY MIXING A REACTION MEDIUM CONTAINING: (1) AN ORGRANIC POLYISOCYANATE, (2) ABOUT 3.5-1.5 EQUIVALENT, PER EQUIVALENT OF ORAGANIC POLYISOCYANATE, OR AN ORGANIC POLYHYDROXY COMPOUND, (3) ABOUT 0.0001 TO 0.1 MOLE, PER EQUIVALENT OF ORGANIC POLYISOCYANATE, OF A CURE RATE CATALYST FOR THE POLYUREATHANE REACTION CONSISTING ESSENTIALLY OF AMINE-FREE ORGANO-TINE CURE RATE CATAYLST FOR THE POLYURETHANE REACTION, (4) AT LEAST ABOUT 0.1 MOLE, PER MOLE OF AMINEFREE ORGANO-TIN CATALYST, OF A TIME-LAPSE MODIFIER SELECTED FROM THE GROUP CONSISTING OF (A) B-DICARBONYL COMPOUNDS HAVING AN ENOL CONTENT OF AT LEAST ABOUT 4% AND A DISCATBONYL ANGLE OF NOT GREATER THAN ABOUT 120 DEGREES, (B) A-HYDROXY KETONES, (C) FUSED AROMATIC B-HYDROXY KETONES IN WHICH THE HYDROXYL GROUP IS ATTACHED TO A CARBON BETA TO THE KETO GROUP IN AN ADJACENT RING, AND (D) B-HYDROXY NITROGEN-HETEOCYCLIC FUSED AROMATIC IN WHICH THE HYDROXYL GROUP IS ATTACHED TO A CARBON BETA TO THE NITROGEN IN AN ADJACENT RING, (B) APPLYING THE REACTION MIXTURE, AND (C) ALLOWING THE APPLIED REACTION MIXTURE TO CURE AT AMBIENT TEMPERATURE.
Abstract:
A CRACKING CATALYST CONSISTS ESSENTIALLY OF A NITRIDE OF ALUMINUM, BORON, OR SILICON, SUPPORTED OR NOT, ON ALUMINA OR ALUMINA/SILICA, TITANIA, ZIRCONIA AND THE LIKE.
Abstract:
A CATALYST COMPOSITION WHICH COMPRISES A COMPOSITE OF A CATALYTIC COMPONENT OF A COPPER PHOSPAHTE AND A SILVER PHOSPAHTE AND A NON-CATALYTIC REFRACTORY SUPPORT. IN ADDITION, THE CATALYST COMPOSITION CAN INCLUDE AT LEAST ONE ALKALI METAL PHOSPHATE.
Abstract:
MONOLEFINS SUCH AS PROPYLENE AND ISOBUTYLENE ARE CONVERTED TO THE CORRESPONDING UNSATURATED ALDEHYDES AND CARBOXYLIC ACIDS IN THE PRESENCE OF A CATALYST OF THE COMPOSITION:
Abstract:
CATALYST CONSISTING OF THE OXIDES OF IRON, BISMUTH, MOLYBDENUM AND OPTIONALLY PHOSPHORUS FOR USE IN THE CATALYTIC GAS-PHASE-OXIDATION OR PROPYLENE OR ACROLEIN BY MEANS OF OXYGEN INTO ACRYLIC ACID, THE CATALYST CONTAINING SILVER OXIDE AS AN ADDITIONAL COMPONENT IN THE ATOMIC RATIO OF AG0.01-1.5FE0.1-12P0.5MO12O30-110.
Abstract:
DESCRIBED IS A METHOD FOR THE PREPARATION OF CATALYSTS ON BASIS OF VANADIUM-CONTAINING ACTIVE PRODUCTS, FOR THE OXIDATION OF NAPHTHALENE TO PHTAHALIC ANHYDRIDE. THE PROCESS IS CHARACTERIZED IN THAT AN AQUEOUS SOLUTION CONTAINING THE COMPOUNDS V2O4, SO3 AND K2O WITH VEO4/SO3/K2O MOLAR RATIOS COMPRISED BETWEEN 1/6/2 AND 1/10/6, IS ADSORBED AT A TEMPERATURE COMPRISED BETWEEN 10* AND 90*C. ONTO A NATURAL OR ARTIFICAL POROUS SUPPORT. THE IMPREGNATED SUPPORT IS THEN SUBJECTED TO A THERMAL TREATMENT OF CALCINATION IN A CURRENT OF AIR.