Abstract:
OLEFINS ARE CONVERTED INTO OTHER OLEFINS HAVING DIFFERENT NUMBERS OF CARBON ATOMS BY CONTACT WITH A CATALYST, ACTIVE FOR DISPROPORTIONATING PROPYLENE INTO ETHYLENE AND BUTENE, COMPRISING ALUMINA PROMOTED WITH A COMPOUND OF MOLYBDENUM, TUNGSTEN OR RHENIUM AND FURTHER TREATED WITH A MODIFYING AMOUNT OF A COMPOUND OF AN ALKALI METAL OR AN ALKALINE EARTH METAL.
Abstract:
OLEFINS ARE CONVERTED INTO OTHER OLEFINS OF DIFFERENT MOLECULAR WEIGHT BY CONTACT WITH AN OLEFIN REACTION CATALYST, HAVING ACTIVITY FOR DISPROPORTIONATING PROPYLENE ITO ETHYLENE AND BUTENE, WHICH CATALYST AHS BEEN TREATED WITH AN INORGANIC BASE OR A MATERIAL CONVERTIBLE TO AN INORGANIC BASE, FOLLOWED BY TREATMENT WITH A STREAM OF HYDROGEN, CARBON MONOXIDE, A GASEOUS ACYCLIC OLEFIN OR A GASEOUS PARAFFIN.
Abstract:
Odor formation is inhibited in paraffin hydrocarbon compositions with normal boiling points within the range of from about 70*F. to about 700*F. by the addition of a small amount of a bis(alkylhydroxybenzyl) ether.
Abstract:
The olefin disproportionation reaction of mixtures of acyclic and cyclic olefin hydrocarbons to produce dienes is improved by using a consecutive bed catalyst arrangement wherein the first bed is a bed of magnesium oxide and the second bed is a solid olefin disproportionation catalyst. Subsequent to separation of the reaction effluent, the heavier olefin hydrocarbons produced in the consecutive bed reaction zone are returned to the reaction zone at a point intermediate to the two beds to provide conversion of the heavier materials to additional diene product. In addition, a combination process is provided wherein 1,9decadiene and 1,5-hexadiene are produced from butadiene, ethylene, and hydrogen using dimerization, hydrogenation, and olefin disproportionation steps.
Abstract:
2,3-DIMETHYLBUTENE IS PRODUCED BY CONTACTING ISOBUTYLENE WITH CATALYST COMPRISING A MIXTURE OF TUNGSTEN OXIDE ON SILICA AND MAGNESIUM OXIDE. ETHYLENE CAN BE ADDED TO PERMIT THE PRODUCTION OF NEOHEXENE.
Abstract:
NON-CONJUGATED ACYCLIC OLEFINS ARE PREPARED BY OLEFIN DISPROPORTIONATION OF ETHYLENE AND A NON-CONJUGATED CYCLIC OLEFIN, THE DESIRED ACYCLIC OLEFIN IS RECOVERED, AND LIGHTER ACYCLIC OLEFIN IS CONDUCTED TO A SECOND OLEFIN DISPROPORTIONATION ZONE WHEREIN THE LIGHTER OLEFIN IS CONVERTED TO ADDITIONAL QUANTITIES OF THE DESIRED ACYCLIC OLEFIN PRODUCT. HEAVIER ACYCLIC OLEFINS ARE CONDUCTED TO THE FIRST OLEFIN DISPROPORTIONATION ZONE.