Abstract: A method is disclosed for regenerating a used catalyst mixture comprising (i) an isomerization catalyst comprising magnesium oxide and (ii) a metathesis catalyst comprising an inorganic carrier and at least one of molybdenum oxide and tungsten oxide. The method comprises (a) decoking the used catalyst mixture in the presence of an oxygen-containing gas to produce a decoked catalyst mixture; and (b) contacting the decoked catalyst mixture with steam at a temperature in the range of 100 to 300° C. to produce a regenerated catalyst mixture.

Abstract: A method is disclosed for regenerating regenerating a used catalyst mixture comprising (i) an isomerization catalyst comprising magnesium oxide and (ii) a metathesis catalyst comprising an inorganic carrier and at least one of molybdenum oxide and tungsten oxide. The method comprises (a) decoking the used catalyst mixture in the presence of an oxygen-containing gas to produce a decoked catalyst mixture; and (b) contacting the decoked catalyst mixture with steam at a temperature in the range of 100 to 300° C. to produce a regenerated catalyst mixture.

Abstract: The catalytic hydrogenation of HBA and/or HMPA is improved by either or both of (1) increasing the temperature in the hydrogenation zone from about 50 to 70° C. at the inlet to above 80° C. at the outlet and (2) raising the pH of the hydrogenation feed to 4.5–6.0 before hydrogenation.

Abstract: A new method for preparing lithium phosphate catalysts is disclosed. The method comprises precipitating a lithium phosphate from a mixture comprising a first aqueous solution which contains lithium and sodium ions and a second aqueous solution which contains phosphate and borate ions. The resultant lithium phosphate catalyst has increased activity and selectivity in the isomerization of an alkylene oxide to the corresponding allylic alcohol.

Abstract: Hydroxybutyraldehyde is formed by hydroformylation of allyl alcohol using a catalyst comprised of a rhodium complex and a ligand such as DIOP, the concentration of CO in the reaction liquid is maintained above about 4.5 mg. mols/liter.

Abstract: Olefins are selectively converted to epoxides using hydrogen peroxide as oxidant in a single liquid phase reaction system characterized by a liquid phase comprised predominantly of an organic solvent. The reaction is catalyzed by a compound comprised of a phosphate-stabilized peroxotungstate species having a W:P atomic ratio of 2:1.

Abstract: Prochiral ethylenically unsaturated substrates are converted to chiral epoxides by reaction with optically active hydroperoxides in the presence of titanium-containing zeolites such as titanium zeolite beta. The method is particularly suitable for producing epoxides from unsubstituted aliphatic olefins which have exceptionally high optical purity as measured by enantiomeric excess.