摘要 |
THIS INVENTION RELATES TO THE OLIGOMERISATION OF OLEFINIC COMPOUNDS IN THE PRESENCE OF AN ACTIVATED OLIGOMERISATION CATALYST. THE INVENTION ALSO EXTENDS TO A PARTICULAR MANNER FOR PROVIDING AN ACTIVATED OLIGOMERISATION CATALYST. ACCORDING TO THE PRESENT INVENTION, THERE IS PROVIDED A PROCESS FOR PRODUCING AN OLIGOMERIC PRODUCT BY THE OLIGOMERISATION OF AT LEAST ONE OLEFINIC COMPOUND, THE PROCESS INCLUDING (A) PROVIDING AN ACTIVATED OLIGOMERISATION CATALYST BY COMBINING, IN ANY ORDER, III) A SOURCE OF CHROMIUM; IV) A LIGATING COMPOUND OF THE FORMULA (R1)m X1 (Y) X2 (R2)n WHEREIN: X1 AND X2 ARE INDEPENDENTLY AN ATOM SELECTED FROM THE GROUP CONSISTING OF NITROGEN, PHOSPHORUS, ARSENIC, ANTIMONY, BISMUTH, OXYGEN, SULPHUR AND SELENIUM OR SAID ATOM OXIDIZED BY S, SE, N OR O WHERE THE VALENCE OF X1 AND/OR X2 ALLOWS FOR SUCH OXIDATION; Y IS A LINKING GROUP BETWEEN X1 AND X2 WHICH LINKING GROUP CONTAINS AT LEAST ONE NITROGEN ATOM WHICH IS DIRECTLY BONDED TO X1 OR X2; m AND n ARE INDEPENDENTLY 0, 1 OR A LARGER INTEGER; AND R1 AND R2 ARE INDEPENDENTLY HYDROGEN, A HYDROCARBYL GROUP, AN ORGANOHETERYL GROUP OR A HETEROHYDROCARBYL GROUP, AND THE RESPECTIVE R1 GROUPS ARE THE SAME OR DIFFERENT WHEN M>1, AND THE RESPECTIVE R2 GROUPS ARE THE SAME OR DIFFERENT WHEN n>1; III) A CATALYST ACTIVATOR WHICH IS AN ORGANOBORON COMPOUND INCLUDING A CATION AND A NON-COORDINATING ANION OF THE GENERAL FORMULA [(R10) xL* - H]+[B(R20)4]- WHEREIN: L* IS AN ATOM SELECTED FROM THE GROUP CONSISTING OF N, S AND P; THE CATION [(R10)x L* - H]+ IS A BRONSTED ACID; X IS AN INTEGER 1, 2 OR 3; EACH R10 IS THE SAME OR DIFFERENT WHEN X IS 2 OR 3 AND EACH IS A-H, HYDROCARBYL GROUP OR A HETEROHYDROCARBYL GROUP; PROVIDED THAT AT LEAST ONE OF R10 COMPRISES AT LEAST 6 CARBON ATOMS AND PROVIDED FURTHER THAT THE TOTAL NUMBER OF CARBON ATOMS IN (R10)x COLLECTIVELY IS GREATER THAN 12; R20 INDEPENDENTLY AT EACH OCCURRENCE IS SELECTED FROM THE GROUP CONSISTING OF HYDRIDE, DIALKYLAMIDO, HALIDE, ALKOXIDE, ARYLOXIDE, HYDROCARBYL, HALOSUBSTITUTED-HYDROCARBYL RADICALS, HALOSUBSTITUTED-ALKOXIDE, HALOSUBSTITUTED-ARYLOXIDE AND A HALOSUBSTITUTED AROMATIC RING MOIETY WITH AT LEAST ONE HALIDE SUBSTITUENT ON THE AROMATIC RING; AND VI) AN ALIPHATIC SOLVENT; AND (B) CONTACTING THE AT LEAST ONE OLEFINIC COMPOUND WITH THE ACTIVATED OLIGOMERISATION CATALYST TO PRODUCE AN OLIGOMERIC PRODUCT. |
申请人 |
SASOL TECHNOLOGY (PTY) LIMITED |
发明人 |
EWART, SEAN WILLIAM;KOLTHAMMER, BRIAN WILLIAM STIRLING;SMITH, DAVID MATTHEW;HANTON, MARTIN JOHN;DIXON, JOHN THOMAS;MORGAN, DAVID HEDLEY;DE BOD, HENRIETTE;GABRIELLI, WILLIAM FULLARD;EVANS, STEPHEN JOHN |