US4041225A
Expired / Lapsed
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Polymerization catalyst and method
Assignee: Chemplex Co
•
Filing: 1975-12-29
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Granted: 1977-08-09
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Expires: 1995-12-29
Abstract
Abstract The method of making an active catalyst system, the catalyst system and a method of polymerizing olefins in which the catalyst system used is prepared by mixing an inorganic support such as silica with a chromium (III) amine complex and activating by heating the mixture to and at an elevated temperature in a non-oxidizing atmosphere.
Inventors
- 👤 Thomas J. Pullukat
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:27
CPC Classifications
C; C08; C08F; C08F10/00
Claims Analysis
Total Claims: 35
Claim 1
Independent Claim
77 words
The method of making an active catalyst consisting essentially of: ion exchanging (1) a chromium (III) amine complex onto (2) a support which is a finely divided, difficultly reducible, inorganic support of the class consisting of silica, alumina, thoria, zirconia, titania, magnesia and mixtures thereof substantially free of adsorbed water and having cations on the surface thereof; and (3) activating the resulting ion exchanged material by heating to and at an elevated temperature in a non-oxidizing atmosphere.
Claim 2
Independent Claim
77 words
The method of making an active catalyst consisting essentially of: ion exchanging (1) a chromium (III) amine complex onto (2) a support which is a finely divided, difficultly reducible, inorganic support of the class consisting of silica, alumina, thoria, zirconia, titania, magnesia and mixtures thereof substantially free of adsorbed water and having cations on the surface thereof; and (3) activating the resulting ion exchanged material by heating to and at an elevated temperature in a non-oxidizing atmosphere.
Claim 3
Dependent Claim
24 words
The method of claim 1 wherein said complex is used in an amount to provide about 0.1-10 wt. % of chromium in said catalyst.
Claim 4
Dependent Claim
24 words
The method of claim 2 wherein said complex is used in an amount to provide about 0.5-2.0 wt. % of chromium in said catalyst.
Claim 5
Dependent Claim
48 words
The method of claim 1 wherein (1) is a member of the class consisting of [Cr(NH 3 ) 6 ]X 3 , [Cr(en) 3 ]X 3 and [Cr(pn) 3 ]X 3 in which en is ethylenediamine, pn is propylenediamine and X is a negative group relative to chromium.
Claim 6
Dependent Claim
15 words
The method of claim 4 wherein (1) is [Cr(NH 3 ) 6 ]X 3 .
Claim 7
Dependent Claim
13 words
The method of claim 4 wherein (1) is [Cr(en) 3 ]X 3 .
Claim 8
Dependent Claim
13 words
The method of claim 4 wherein (1) is [Cr(pn) 3 ]X 3 .
Claim 9
Dependent Claim
14 words
The method of claim 1 wherein the temperature of (3) is about 100°-1000° C.
Claim 10
Dependent Claim
19 words
The method of claim 1 wherein said heating of (3) is in a fluidized bed in a non-oxidizing atmosphere.
Claim 11
Dependent Claim
47 words
The method of claim 1 wherein (2) is treated with an aqueous solution of sodium hydroxide to replace the acidic protons of said support with sodium cations and the resulting sodium ion exchange support is further treated with an excess of an aqeuous solution of said (1).
Claim 12
Dependent Claim
24 words
The method of claim 1 wherein said support (2) is treated with an aqueous ammoniacal solution of (1) prior to the activating of (3).
Claim 13
Dependent Claim
77 words
An active catalyst prepared by the method consisting essentially of: ion exchanging (1) a chromium (III) amine complex onto (2) a support which is a finely divided, difficultly reducible, inorganic support of the class consisting of silica, alumina, thoria, zirconia, titania, magnesia and mixtures thereof substantially free of adsorbed water and having cations on the surface thereof; and (3) activating the resulting ion exchanged material by heating to and at an elevated temperature in a non-oxidizing atmosphere.
Claim 14
Dependent Claim
77 words
An active catalyst prepared by the method consisting essentially of: ion exchanging (1) a chromium (III) amine complex onto (2) a support which is a finely divided, difficultly reducible, inorganic support of the class consisting of silica, alumina, thoria, zirconia, titania, magnesia and mixtures thereof substantially free of adsorbed water and having cations on the surface thereof; and (3) activating the resulting ion exchanged material by heating to and at an elevated temperature in a non-oxidizing atmosphere.
Claim 15
Dependent Claim
24 words
The catalyst of claim 12 wherein said complex is used in an amount to provide about 0.1-10 wt. % of chromium in said catalyst.
Claim 16
Dependent Claim
24 words
The catalyst of claim 13 wherein said complex is used in an amount to provide about 0.5-2.0 wt. % of chromium in said catalyst.
Claim 17
Dependent Claim
48 words
The catalyst of claim 12 wherein (1) is a member of the class consisting of [Cr(NH 3 ) 6 ]X 3 , [Cr(en) 3 ]X 3 and [Cr(pn) 3 ]X 3 in which en is ethylenediamine, pn is propylenediamine and X is a negative group relative to chromium.
Claim 18
Dependent Claim
15 words
The catalyst of claim 15 wherein (1) is [Cr(NH 3 ) 6 ]X 3 .
Claim 19
Dependent Claim
13 words
The catalyst of claim 15 wherein (1) is [Cr(en) 3 ]X 3 .
Claim 20
Dependent Claim
13 words
The catalyst of claim 15 wherein (1) is [Cr(pn) 3 ]X 3 .
Claim 21
Dependent Claim
14 words
The catalyst of claim 12 wherein the temperature of (3) is about 100°-1000° C.
Claim 22
Dependent Claim
19 words
The catalyst of claim 12 wherein said heating of (3) is in a fluidized bed in a non-oxidizing atmosphere.
Claim 23
Dependent Claim
47 words
The catalyst of claim 12 wherein (2) is treated with an aqueous solution of sodium hydroxide to replace the acidic protons of said support with sodium cations and the resulting sodium ion exchange support is further treated with an excess of an aqueous solution of said (2).
Claim 24
Dependent Claim
22 words
The catalyst of claim 12 wherein (2) is treated with an aqueous ammoniacal solution of (1) prior to the activating of (3).
Claim 25
Dependent Claim
36 words
The method of making polymers of 1-olefins of 2-8 carbon atoms and copolymers of said olefins and 1-olefins of 2-20 carbon atoms which comprises polymerizing said olefins under polymerizing conditions with the catalysts of claim 12.
Claim 26
Dependent Claim
36 words
The method of making polymers of 1-olefins of 2-8 carbon atoms and copolymers of said olefins and 1-olefins of 2-20 carbon atoms which comprises polymerizing said olefins under polymerizing conditions with the catalyst of claim 13.
Claim 27
Dependent Claim
36 words
The method of making polymers of 1-olefins of 2-8 carbon atoms and copolymers of said olefins and 1-olefins of 2-20 carbon atoms which comprises polymerizing said olefins under polymerizing conditions with the catalyst of claim 14.
Claim 28
Dependent Claim
36 words
The method of making polymers of 1-olefins of 2-8 carbon atoms and copolymers of said olefins and 1-olefins of 2-20 carbon atoms which comprises polymerizing said olefins under polymerizing conditions with the catalyst of claim 15.
Claim 29
Dependent Claim
36 words
The method of making polymers of 1-olefins of 2-8 carbon atoms and copolymers of said olefins and 1-olefins of 2-20 carbon atoms which comprises polymerizing said olefins under polymerizing conditions with the catalyst of claim 16.
Claim 30
Dependent Claim
36 words
The method of making polymers of 1-olefins of 2-8 carbon atoms and copolymers of said olefins and 1-olefins of 2-20 carbon atoms which comprises polymerizing said olefins under polymerizing conditions with the catalyst of claim 17.
Claim 31
Dependent Claim
36 words
The method of making polymers of 1-olefins of 2-8 carbon atoms and copolymers of said olefins and 1-olefins of 2-20 carbon atoms which comprises polymerizing said olefins under polymerizing conditions with the catalyst of claim 18.
Claim 32
Dependent Claim
36 words
The method of making polymers of 1-olefins of 2-8 carbon atoms and copolymers of said olefins and 1-olefins of 2-20 carbon atoms which comprises polymerizing said olefins under polymerizing conditions with the catalyst of claim 19.
Claim 33
Dependent Claim
36 words
The method of making polymers of 1-olefins of 2-8 carbon atoms and copolymers of said olefins and 1-olefins of 2-20 carbon atoms which comprises polymerizing said olefins under polymerizing conditions with the catalyst of claim 20.
Claim 34
Dependent Claim
36 words
The method of making polymers of 1-olefins of 2-8 carbon atoms and copolymers of said olefins and 1-olefins of 2-20 carbon atoms which comprises polymerizing said olefins under polymerizing conditions with the catalyst of claim 21.
Claim 35
Dependent Claim
36 words
The method of making polymers of 1-olefins of 2-8 carbon atoms and copolymers of said olefins and 1-olefins of 2-20 carbon atoms which comprises polymerizing said olefins under polymerizing conditions with the catalyst of claim 22.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-08-08 | 1981-02-07 | 1981-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-08 | 1985-02-07 | 1985-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-08 | 1989-02-07 | 1989-08-09 | $7700.00 | Window Closed / Lapsed |