Abstract:
CYCLIC OLEFINICALLY UNSATURATED ETHERS CONTAINING 4 TO 5 RING CARBON ATOMS ARE ISOMERIZED BY CONTACT WITH A CATALYST CONTAINING NICKEL AND ARSENIC IN A HYDROGEN ATMOSPHERE. THE ISOMERIZATION REACTION IS FAVORABLY INFLUENCED BY THE PRESENCE OF CARBON MONOXIDE. THE ISOMERIZATION PRODUCTS ARE USEFUL SOLVENTS AND INTERMEDIATES FOR THE PREPARATION OF USEFUL CHEMICALS SUCH AS POLYMERS, POLYFUNCTIONAL ALCOHOLS AND THE LIKE.
Abstract:
Aromatics are selectively partially hydrogenated to substantial amounts of cyclic olefins by contacting the aromatics under hydrogenation conditions with hydrogen and with an aqueous dispersion of a solid ruthenium-containing catalyst promoted with a modifying amount of a transition metal and wherein the aqueous dispersion is maintained at essentially neutral or acid pH conditions.
Abstract:
A method and catalysts for selective hydrogenation and isomerization which involves contacting a feedstream with hydrogen and with various supported catalysts of metallic arsenides and antimonides, with carbon monoxide being optionally introduced into the reaction as a modifier.
Abstract:
A method for isomerizing olefinic hydrocarbons which employs a zinc arsenide catalyst, the arsenide being present in relation to the zinc in a molal ratio between about 0.33 and 3.0.
Abstract:
AN IMPROVED METHOD FOR SELECTIVE HYDROGENATION OF NON-CONJUGATED CYCLIC POLYENE TO THE CORRESPONDING CYCLIC MONOOLEFINS WITH METAL ARSENIDE AND METAL ANTIMONIDE HYDROGENATION CATALYSTS WHICH COMPRISES CONTACTING THE FEED POLYENES WITH A DOUBLE BOND ISOMERIZATION CATALYST PRIOR TO, WITH OR IN CONJUCTION WITH, CONTACT OF THE FEED.
Abstract:
A METHOD AND CATALYSTS FOR SELECTIVE HYDROGENATION AND ISOMERIZATION WHICH INVOLVES CONTACTING A FEEDSTREAM WITH HYDROGEN AND WITH VARIOUS SUPPORTED CATALYSTS OF MATALLIC ARSENIDES AND ANTIMONIDES, WITH CARBON MONOXIDE BEING OPTIONALLY INTRODUCED INTO THE REACTION AS A MODIFIER.
Abstract:
A METHOD OF MODIFYING IRON, COBALT AND NICKEL-CONTAINING CATALYSTS EMPLOYED FOR THE HYDROGENATION OF DIOLEFINS AND TRIOLEFINS TO MONOOLEFINS WHICH INVOLVES INTRODUCING INTO CONTACT WITH THE REACTANTS A MATERIAL SELECTED FROM TRHE GROUP CONSISTING OF ORGANIC ACIDS, ALDEHYDES, KETONES, ANHYDROUS AMMONIA, AMINES AND METHANOL.