RU2002117426A

RU2002117426A - The method of introducing several catalysts in solution

Info

Publication number: RU2002117426A
Application number: RU2002117426/04A
Authority: RU
Inventors: Джон Ф. ЧУЛЬ; Керстен Анне ЭРИКСОН; Саймон МОСОН; Дейвид Джеймс СРЕКК; Марк Г. ГУД; Пол Т. ДАНЬЕЛЛ; Маттью Г. МАККИ; Кларк С. УИЛЛЬЯМС
Original assignee: Юнивейшн Технолоджиз, Ллс
Priority date: 1999-12-01
Filing date: 2000-05-15
Publication date: 2003-12-20

Claims

1. The method of polymerization of olefin (olefins) in a gas-phase reactor, in which at least two catalysts and at least one activator are introduced into the reactor in a liquid carrier, where each catalyst is independently activated and these catalysts and activator (s) are combined before being introduced into the reactor in a liquid carrier.

2. The method according to claim 1, in which the catalysts are activated sequentially.

3. The method according to claim 1, in which I) the catalysts are combined in a liquid carrier, after which activator (s) are introduced into this liquid carrier, or in which II) the catalysts are combined in a liquid carrier and then introduced into a communication medium in communication with a reactor, after which an activator (s) are introduced into the communication medium at the catalyst entry point or other point.

4. The method according to claim 3, in which a liquid carrier containing catalysts and an activator (activators) is sent to a device for introducing this liquid carrier into the reactor.

5. The method according to claim 4, in which the catalysts and a liquid carrier are introduced into such a device before introducing an activator into this device.

6. The method according to claim 5, in which the composition comprising a liquid carrier, is a stream of liquid flowing into the reactor or sprayed therein.

7. The method according to claim 1, in which at least one catalyst, at least one activator and a liquid carrier are directed to the device for introducing into the reactor, and in which, after the first catalyst and activator are supplied to this device, an additional catalyst is sent to the device (catalysts )

8. The method according to claim 1, in which I) the first combination comprising at least one catalyst in a liquid carrier is introduced into a device in communication with the reactor, and a second composition comprising at least one activator in a liquid carrier is introduced into this a device communicating with the reactor, and then, after a certain period of time, another catalyst in a liquid carrier is introduced into this device communicating with the reactor, after which the catalyst / activator combination is sent to the reactor, or in which II) at least one catalyst (a) and at least one activator (a) is combined in a liquid carrier and at least one catalyst (b) and at least one activator (b) are combined in a liquid carrier, where the catalyst (b) is different from the catalyst (a) and / or the activator (b) is different from activator (a), after which both combinations are sent to a device in communication with the reactor, and then these combinations are introduced into the reactor, or in which III) a liquid carrier, including catalyst (b) and activator (b), is directed into a device communicating with the reactor, after into this device communicating with the reactor, a liquid carrier is introduced, including catalyst (a) and activator (a), or in which IV) a first composition comprising at least one catalyst (a), at least one activator (a) and a liquid carrier, are sent to a device in communication with the reactor and a second composition comprising at least one catalyst (b), at least one activator (b) and a liquid carrier, where the catalyst (b) and / or activator (b) is different from catalyst (a) and / or activator (a) is sent to a device in communication with the reactor, after being fed into the device your first composition, and then the combined compositions are introduced into the reactor, or in which V) at least one catalyst and a liquid carrier are sent to the device for introducing into the reactor, where additional catalyst (s) are sent to this device after the first catalyst is fed into it and the activator (s), or in which VI) the first composition comprising at least one catalyst (a), at least one activator (a) and a liquid carrier, is sent to the device for introduction into the reactor, and then to the device for direct introduction into the reactor of the second catalyst in a liquid carrier and then to a device for insertion into a second reactor fed activator in a liquid carrier, followed by introduction into the reactor just this combination.

9. The method according to claim 1, in which at least one catalyst is selected from the range comprising a bulky ligand metallocene catalyst, a Ziegler-Natta catalyst, a vanadium catalyst, a chromium catalyst, a phenoxide catalyst, and combinations thereof.

10. The method according to claim 1, in which at least one catalyst corresponds to the formula

where M denotes a metal atom of groups 3 to 12 or from a number of lanthanides or actinides of the Periodic table of elements;

L ^A and L ^B are open, acyclic or fused rings or ring systems and are any auxiliary ligand system including unsubstituted or substituted cyclopentadienyl ligands or cyclopentadienyl type ligands, heteroatom-substituted and / or heteroatom-containing cyclopentadienyl type ligands;

each Q independently represents a leaving group;

n = 0, 1 or 2 depending on the state of metal oxidation so that the compound corresponding to this formula is neutral, both L groups can be linked together by bridging group A, where A represents at least one atom of groups 13 to 16 and may or may not be substituted.

11. The method according to claim 1, in which at least one catalyst is a phenoxide catalyst comprising one or more compounds with a heteroatom-substituted phenoxide group with transition metal atoms of groups 3 to 10 or lanthanide metal atoms, where the metal atom is bonded to an oxygen atom phenoxy group.

12. The method according to claim 11, in which the phenoxide catalyst meets the formulas

or

in which R ¹ -R ⁵ each independently represents a hydrogen atom, a heteroatom-containing group or a C ₁ -C ₁₀₀ group, provided that at least one of the radicals R ² to R ⁵ denotes a group containing a heteroatom, any of the radicals with R ¹ at R ⁵ may be linked or may not be linked to M;

O represents an oxygen atom;

M denotes a transition metal atom of groups 3 to 10 or a lanthanide metal atom;

n denotes the state of valency M;

Q is an anionic ligand or a bond to a heteroatom group R, which may be any of R ¹ to R ⁵ .