Claims
- 1. A continuous process for preparing an alkyl aluminum compound from an internal olefin, said process comprising:
- (a) continuously feeding (i) a linear internal olefin containing 4 to about 30 carbon atoms or a mixture of such internal olefins, (ii) a trialkyl aluminum, the mole ratio of said linear internal olefins to said trialkyl aluminum being about 1-50:1, and (iii) a catalytic amount of an isomerization catalyst to a reaction zone so as isomerize the internal olefinic double bond to form at least some linear 1-olefin which displaces alkyl groups from said trialkyl aluminum and forms an alkyl aluminum compound wherein at least one of the alkyl groups bound to aluminum is a linear alkyl derived from said linear 1-olefin, and
- (b) continuously removing olefin formed by the displaced alkyl groups and reaction mixture containing said alkyl aluminum compound from the reaction zone.
- 2. The process according to claim 1 wherein said reaction zone is a single reactor.
- 3. The process according to claim 1 wherein said reaction zone comprises a plurality of reactors in series.
- 4. The process according to claim 1 wherein said reaction zone comprises a plurality of stirred tank reactors in series.
- 5. The process according to claim 4 wherein additional isomerization catalyst is fed to one or more of the subsequent reactors.
- 6. The process according to claim 1 wherein said catalyst is an isomerization/displacement catalyst.
- 7. The process according to claim 4 wherein said catalyst is an isomerization/displacement catalyst.
- 8. The process of claim 1 wherein said trialkyl aluminum contains less than about 1.0 weight percent of aluminum hydride impurity and said catalyst is a nickel-containing isomerization/displacement catalyst.
- 9. The process of claim 8 wherein the nickel-containing catalyst is selected from nickel(II) salts, nickel(II) carboxylates, nickel(II) acetonates, nickel(0) complexes and mixtures thereof.
- 10. The process of claim 9 wherein the nickel-containing catalyst is selected from nickel bis-1,5-cyclooctadiene, nickel acetate, nickel naphthenate, nickel octanoate, nickel 2-ethylhexanoate and nickel chloride
- 11. The process of claim 8, wherein said catalyst is present in an amount of from about 0.01 to 5.0 mole percent of the trialkyl aluminum, said linear internal olefin is an n-hexene, and said trialkyl aluminum is tri-n-propylaluminum.
- 12. The process of claim 11 wherein said catalyst is nickel octanoate nickel acetate, nickel naphthenate, or nickel 2-ethylhexanoate.
- 13. The process of claim 4 wherein said trialkyl aluminum contains less than about 1.0 weight percent of aluminum hydride impurity and said catalyst is a nickel-containing isomerization/displacement catalyst.
- 14. The process of claim 13 wherein the nickel-containing catalyst is selected from nickel(II) salts, nickel(II) carboxylates, nickel(II) acetonates, nickel(0) complexes and mixtures thereof.
- 15. The process of claim 14 wherein the nickel-containing catalyst is selected from nickel bis-1,5-cyclooctadiene, nickel acetate, nickel naphthenate, nickel octanoate, nickel 2-ethylhexanoate and nickel chloride.
- 16. The process of claim 13 wherein said catalyst is present in an amount of from about 0.01 to 5.0 mole percent of the trialkyl aluminum, said linear internal olefin is an n-hexene, and said trialkyl aluminum is tri-n-propylaluminum.
- 17. The process of claim 16 wherein said catalyst is nickel octanoate, nickel acetate, nickel naphthenate or nickel 2-ethylhexanoate.
Parent Case Info
This application is a division of application Ser. No. 07/739,654, filed Aug. 2, 1991, now U.S. Pat. No. 5,191,145, which is a continuation-in-part of application Ser. No. 674,104, filed Mar. 25, 1991 now U.S. Pat. No. 5,124,465 which is incorporated herein by reference.
US Referenced Citations (8)
Divisions (1)
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739654 |
Aug 1991 |
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Continuation in Parts (1)
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674104 |
Mar 1991 |
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