| 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. |