Ethylene oligomerization process
Abstract
Abstract A PROCESS IS DESCRIBED FOR OLIGOMERIZING ETHYLENE TO A MIXTURE OF HIGHER, LINEAR, ALPHA-OLEFINS HAVING A MOLECULAR WEIGHT DISTRIBUTION WHICH DIFFERS SUBSTANTIALLY FROM THE GEOMETRIC DISTRIBUTION PATTERN CONVENTIONALLY OBTAINED IN THAT THE PRODUCT IS MADE UP IN LARGE PORTION OF OLIGOMERS IN THE INTERMEDIATE OR C12 TO C42 CARBON NUMBER RANGE WHILE THE RELATIVE QUANTITY OF HIGHER OLIGOMERS OF MORE THAN 42 CARBON ATOMS IN SUBSTANTIALLY REDUCED. THIS PROCESS COMPRISES REACTING ETHYLENE IN A SOLVENT SELECTED FROM THE CLASS CONSISTING OF ALPHA, OMEGAALKANDIOLS OF 4 TO 7 CARBON ATOMS AND ALKYLENE CARBONATES OF 3 TO 7 CARBON ATOMS IN THE PRESENCE OF A CATALYST COMPOSITION PRODUCED BY CONTACTING IN THE PRESENCE OF ETHYLENE (1) A SIMPLE DIVALENT NICKEL SALT, (2) A BORON HYDRIDE REDUCING AGENT AND (3) DICYCLOHEXYLPHOSPHINOPROPIONIC AND/ OR AN ALKALI METAL SALT THEREOF.
Inventors
- 👤 E Lutz
Bibliographic Details
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