Patent US4159968A successfully refreshed from Google Patents.
US4159968A
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Catalyst for the preparation of ethylene and vinyl chloride from ethane
Assignee: Geon Co
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Filing: 1978-03-16
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Granted: 1979-07-03
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Expires: 1998-03-16
Abstract
Abstract Ethane is reacted with oxygen and a chlorine source in the presence of a solid solution catalyst containing iron cations stabilized with lanthanum and/or lanthanides to yield ethylene, vinyl chloride, and other valuable by-products. Conversion of ethane to products approaches 100 percent, ethylene is prepared in up to 90 mole percent yield, and the combined yield of ethylene, vinyl chloride, and ethyl chloride is up to 95 mole percent.
Inventors
- 👤 William J. Kroenke
- 👤 Richard T. Carroll
- 👤 Angelo J. Magistro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:16
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/42; C07C5/48; B; B01; B01J; B01J23/00; B01J23/70; B01J23/76; B01J23/83; C07C17/00; C07C17/093; C07C17/15; C07C17/152; C07C17/154; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/52
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
88 words
A solid solution catalyst consisting essentially of iron cations substituted for aluminum cations in a host lattice of α-Al 2 O 3 and having an iron content of from about 0.1 percent to about 20 percent by weight expressed as the oxide; stabilized with a total lanthanide content of from about 0.1 percent to 20 percent by weight expressed as the oxide; and having an X-ray diffraction pattern having peak positions different than that of the host lattice, all weight percents based upon the weight of the catalyst.
Claim 2
Dependent Claim
88 words
A solid solution catalyst consisting essentially of iron cations substituted for aluminum cations in a host lattice of α-Al 2 O 3 and having an iron content of from about 0.1 percent to about 20 percent by weight expressed as the oxide; stabilized with a total lanthanide content of from about 0.1 percent to 20 percent by weight expressed as the oxide; and having an X-ray diffraction pattern having peak positions different than that of the host lattice, all weight percents based upon the weight of the catalyst.
Claim 3
Dependent Claim
32 words
A solid solution catalyst of claim 1 wherein the iron content of the catalyst is from about 0.5 percent to about 10 percent by weight of the catalyst, expressed as the oxide.
Claim 4
Dependent Claim
51 words
A solid solution catalyst of claim 2 consisting essentially of iron cations substituted for aluminum cations in a host lattice of α-Al 2 O 3 , stabilized with from about 0.5 percent to about 10 percent by weight expressed as the oxide of lanthanum, cerium, praeseodymium, neodymium, erbium, or mixtures thereof.
Claim 5
Dependent Claim
28 words
The solid solution catalyst of claim 3 consisting essentially of iron cations substituted for aluminum cations in an α-Al 2 O 3 host lattice stabilized with lanthanum oxide.
Claim 6
Dependent Claim
13 words
The solid solution catalyst of claim 3 which is stabilized with erbium oxide.
Claim 7
Dependent Claim
13 words
The solid solution catalyst of claim 3 which is stabilized with praeseodymium oxide.
Claim 8
Dependent Claim
13 words
The solid solution catalyst of claim 3 which is stabilized with neodymium oxide.
Claim 9
Dependent Claim
13 words
The solid solution catalyst of claim 3 which is stabilized with cerium oxide.
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) | 1982-07-02 | 1983-01-01 | 1983-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-07-02 | 1987-01-01 | 1987-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-07-02 | 1991-01-01 | 1991-07-03 | $7700.00 | Window Closed / Lapsed |