RU2003112616A

RU2003112616A - METHOD FOR CO-OLIGOMERIZATION OF ETHYLENE AND ALPHA-OLEFINS

Info

Publication number: RU2003112616A
Application number: RU2003112616/04A
Authority: RU
Inventors: БУР Эрик Йоханнес Мария ДЕ; Хендрикус Хиасинтус ДЕЛИНГ; ДЕР ХЕЙДЕН Харри ВАН; Квок Ан Он; ОРТ Арт Бартус ВАН; Зон Ари Ван
Original assignee: Шелл Интернэшнл Рисерч Маатсхаппий Б.В.
Priority date: 2000-10-03
Filing date: 2001-10-01
Publication date: 2004-11-20

Claims

1. A process for production of higher linear alpha olefins and / or alkilrazvetvlennyh alpha-olefins, which comprises cooligomerization of one or more alpha olefins with ethylene in the presence of a metal catalyst system employing one or more complexes bisariliminpiridin _MX-a and / or one or more complexes [bisaryliminpyridin-MY _p · L

\binom{+}{b}

] [NC ^- ] _q , wherein said bisarylimine pyridine complexes contain a ligand described by the formula

where M represents an atom of a metal selected from Fe or Co;

a = 2 or 3;

X is a halide, optionally substituted hydrocarbyl, alkoxide, amide or hydride;

Y represents a ligand that may allow the incorporation of an olefin;

NC ^- is a non-coordinating anion;

p + q = 2 or 3 in accordance with the formal oxidation state of said metal atom;

L is a neutral Lewis donor molecule;

b is 0, 1 or 2;

each of R ₁ -R _5, independently of the others, is hydrogen, an optionally substituted hydrocarbyl, an inert functional group, or any two of R ₁ -R ₃ , vicinal to each other, taken together, can form a ring;

each of Z, which may be identical or different, is an optionally substituted aromatic hydrocarbon ring, an optionally substituted polyaromatic hydrocarbon fragment, an optionally substituted heterohydrocarbyl fragment, or an optionally substituted aromatic hydrocarbon ring in combination with a metal, said optionally substituted aromatic hydrocarbon ring π - coordinated with metal,

and said method is implemented at an ethylene pressure of less than 2.5 MPa.

2. The method according to claim 1, where the aforementioned ligand is described by the formula

where each of R ₁ -R ₁₀ independently of the others represents hydrogen, an optionally substituted hydrocarbyl, an inert functional group, or any two of R ₁ -R ₃ , R ₆ -R ₁₀ , vicinal to each other, taken together, can form a ring; R ₆ may be taken together with R ₄ to form a ring; R ₁₀ may be taken together with R ₄ to form a ring; Z is an optionally substituted aromatic hydrocarbon ring, an optionally substituted polyaromatic hydrocarbon fragment, an optionally substituted heterohydrocarbyl fragment, or an optionally substituted aromatic hydrocarbon ring in combination with a metal, said optionally substituted aromatic hydrocarbon ring being π-coordinated with the metal.

3. The method according to claim 1 or 2, where the aforementioned ligand is described by the formula

where each of R ₁ -R ₅ , R ₇ -R ₉ and R ₁₂ -R ₁₄ independently of the others is hydrogen, an optionally substituted hydrocarbyl, an inert functional group, or any two of R ₁ -R ₃ , R ₇ -R ₉ and R ₁₂ -R ₁₄ , vicinal to each other, taken together, can form a ring;

R ₆ represents hydrogen, an optionally substituted hydrocarbyl, an inert functional group, or taken together with R ₇ or R ₄ forms a ring;

R ₁₀ represents hydrogen, an optionally substituted hydrocarbyl, an inert functional group, or taken together with R ₉ or R ₄ forms a ring;

R ₁₁ represents hydrogen, an optionally substituted hydrocarbyl, an inert functional group, or taken together with R ₅ or with R ₁₂ forms a ring;

R ₁₅ represents hydrogen, an optionally substituted hydrocarbyl, an inert functional group, or taken together with R ₅ or with R ₁₄ forms a ring.

4. The method according to claim 3, where each of R ₁ -R ₅ , R ₇ -R ₉ and R ₁₂ -R ₁₄ independently of the others represents hydrogen, optionally substituted hydrocarbyl, an inert functional group, or any two of R ₁ -R ₃ , R ₇ -R ₉ and R ₁₂ -R ₁₄ , taken together relative to each other, can form a ring, R ₆ represents a group containing primary carbon, a group containing secondary carbon, or a group containing tertiary carbon, and provided that if R ₆ is a group containing primary carbon, none of R ₁₀ , R ₁₁ and R ₁₅ represents a group containing primary carbon, or one or two of R ₁₀ , R ₁₁ and R ₁₅ represent a group containing primary carbon, and the remaining groups of R ₁₀ , R ₁₁ and R ₁₅ represent hydrogen, if R ₆ represents represents a group containing secondary carbon, none of R ₁₀ , R ₁₁ and R ₁₅ represents a group containing primary carbon, or a group containing secondary carbon, or one of R ₁₀ , R ₁₁ and R ₁₅ represents a group, containing primary carbon, or a group containing secondary carbon, and the remaining groups of R ₁₀ , R ₁₁ and R ₁₅ are hydrogen, if R ₆ is a tertiary carbon group, all groups of R ₁₀ , R ₁₁ and R ₁₅ are hydrogen, and any two of R ₆ , R ₇ , R ₈ , R ₉ , R ₁₀ , R ₁₁ , R ₁₂ , R ₁₃ , R ₁₄ and R ₁₅ , vicinal to each other, taken together, can form a ring.

5. The method according to claim 3, where each of R ₁ -R ₅ , R ₇ -R ₉ and R ₁₂ -R ₁₄ independently of the others represents hydrogen, optionally substituted hydrocarbyl, an inert functional group, or any two of R ₁ -R ₃ , R ₇ -R ₉ and R ₁₂ -R ₁₄ , taken together relative to each other, can form a ring, R ₆ represents hydrogen, optionally substituted hydrocarbyl, an inert functional group, or taken together R ₇ or with R ₄ forms a ring, R ₁₀ represents hydrogen, optionally substituted hydrocarbyl, an inert functional group, and whether taken together with R ₉ or with R ₄ forms a ring, R ₁₁ and R ₁₅ independently of each other represent hydrogen or an inert functional group.

6. The method according to claim 3, where each of R ₁ -R ₅ , R ₇ -R ₉ and R ₁₂ -R ₁₄ independently of the others represents hydrogen, optionally substituted hydrocarbyl, an inert functional group, or any two of R ₁ -R ₃ , R ₇ -R ₉ and R ₁₂ -R ₁₄ , taken together relative to each other, can form a ring, R ₆ , R ₁₀ , R ₁₁ and R _{15 are} identical, and each of them is selected from fluorine or chlorine.

7. The method according to any one of claims 1 to 6, where the alpha-olefin comonomer is generally present in a concentration exceeding 1 mol · L ^-1 .

8. A composition comprising linear alpha olefins and / or alkyl branched alpha olefins obtained by the method according to any one of claims 1 to 7.

9. A composition comprising linear alpha olefins and alkyl branched alpha olefins, wherein said composition contains more than 5% by weight of alkyl branched alpha olefins based on the total weight of linear alpha olefins and alkyl branched alpha olefins in the product composition.

10. The composition of claim 8 or 9, wherein said alkyl branched alpha olefins are methyl and / or ethyl branched alpha olefins.