Patent US3930987A successfully refreshed from Google Patents.
US3930987A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalyst and method of preparing same
Assignee: Mobil Oil AS
•
Filing: 1974-05-30
•
Granted: 1976-01-06
•
Expires: 1994-05-30
Abstract
Abstract New catalyst for hydrocarbon conversion of organic feedstocks and method of preparing such catalyst. Catalyst is a composite made up of an inorganic oxide, wherein at least 50 weight percent of said inorganic oxide is silica and/or alumina, said matrix having dispersed therein a particulate crystalline aluminosilicate carrying rare earth cations, said composite catalyst having rare earth impregnated therein in an amount of from about 1 to 6 percent by weight (expressed as RE 2 O 3 ), this amount being over and above the rare earth level attainable by ion exchange alone. impregnated rare earth may be incorporated into the catalyst by impregnating the composite with a rare earth-containing solution and then removing excess solution and drying, by impregnating the matrix with rare earth and then admixing the matrix with rare earth-exchanged crystalline aluminosilicate, or by impregnating rare earth-exchanged crystalline aluminosilicate with rare earth and then admixing the resultant rare earth-exchanged and impregnated crystalline aluminosilicate, preferably in the absence of any intermediate washing, with the matrix.
Inventors
- 👤 Harry S. Grand
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:23
CPC Classifications
C; C10; C10G; C10G11/00; C10G11/02; C10G11/04; C10G11/05; B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/08; B01J29/085; B01J29/087; B01J2229/00; B01J2229/30; B01J2229/36; B01J2229/40
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
103 words
A method of preparing a rare earth-impregnated composite catalytic composition comprising a matrix having a crystalline aluminosilicate zeolite dispersed therein, said crystalline aluminosilicate zeolite carrying rare-earth cations, said matrix comprising an inorganic oxide wherein at least 50 weight percent of said inorganic oxide is silica, alumina, or silica-alumina, said method comprising incorporating rare earth into said composite rare earth in an amount equivalent to about 1 to 6 percent by weight, expressed as RE 2 O 3 , said amount being over and above the rare earth level that would be present in said composite by virtue of rare earth ion exchange alone.
Claim 2
Independent Claim
103 words
A method of preparing a rare earth-impregnated composite catalytic composition comprising a matrix having a crystalline aluminosilicate zeolite dispersed therein, said crystalline aluminosilicate zeolite carrying rare-earth cations, said matrix comprising an inorganic oxide wherein at least 50 weight percent of said inorganic oxide is silica, alumina, or silica-alumina, said method comprising incorporating rare earth into said composite rare earth in an amount equivalent to about 1 to 6 percent by weight, expressed as RE 2 O 3 , said amount being over and above the rare earth level that would be present in said composite by virtue of rare earth ion exchange alone.
Claim 3
Dependent Claim
22 words
The method of claim 1 wherein said matrix additionally comprises a weighting agent selected from the group consisting of clay and alumina.
Claim 4
Dependent Claim
12 words
The method of claim 2 wherein said weighting agent is Kaolin clay.
Claim 5
Dependent Claim
25 words
The method of claim 1 wherein said incorporation is effected by impregnation of said composite with a rare earth-containing solution, removing excess solution, and drying.
Claim 6
Dependent Claim
33 words
The method of claim 1 wherein said incorporation is effected by impregnation of said matrix with rare earth, admixing the resulting rare earth-impregnated matrix with said particles of crystalline aluminosilicate, zeolite and drying.
Claim 7
Dependent Claim
35 words
The method of claim 1 wherein said incorporation is effected by treatment of said crystalline aluminosilicate zeolite with a rare earth-containing solution, admixing the resultant rare earth-impregnated crystalline aluminosilicate zeolite with said matrix, and drying.
Claim 8
Dependent Claim
18 words
The method of claim 6 wherein said admixing is carried out in the absence of any intermediate washing.
Claim 9
Dependent Claim
94 words
The method of claim 6 wherein any washing carried out prior to said admixing is effected under such conditions as to permit removal of only a portion of the excess of rare earth ions present so that sufficient excess rare earth ions remains that upon drying, the resultant composite contains impregnated rare earth in an amount, expressed as RE 2 O 3 , of at least about 1 percent by weight, said amount being over and above the rare earth level that would be present in said composite by virtue of ion exchange alone.
Claim 10
Dependent Claim
32 words
The method of claim 4 wherein said drying is carried out over a period of at least 5 minutes, the water content during said period being not less than 20 weight percent.
Claim 11
Dependent Claim
90 words
A composite catalyst comprising a matrix having a particulate crystalline aluminosilicate zeolite dispersed therein, said crystalline aluminosilicate zeolite carrying rare earth cations, said matrix comprising an inorganic oxide wherein at least 50 weight percent of said inorganic oxide is silica, alumina, or silica-alumina, said composite containing impregnated rare earth in an amount equivalent to about 1 to 6 percent by weight, expressed as RE 2 O 3 , said amount being over and above the rare earth level present in said composite by virtue of rare earth ion exchange alone.
Claim 12
Dependent Claim
90 words
A composite catalyst comprising a matrix having a particulate crystalline aluminosilicate zeolite dispersed therein, said crystalline aluminosilicate zeolite carrying rare earth cations, said matrix comprising an inorganic oxide wherein at least 50 weight percent of said inorganic oxide is silica, alumina, or silica-alumina, said composite containing impregnated rare earth in an amount equivalent to about 1 to 6 percent by weight, expressed as RE 2 O 3 , said amount being over and above the rare earth level present in said composite by virtue of rare earth ion exchange alone.
Claim 13
Dependent Claim
22 words
The catalyst of claim 10 wherein said matrix additionally comprises a weighting agent selected from the group consisting of clay and alumina.
Claim 14
Dependent Claim
12 words
The catalyst of claim 11 wherein said weighting agent is Kaolin clay.
Claim 15
Dependent Claim
30 words
The catalyst of claim 10 wherein said inorganic oxide is silica, silica-alumina, silica-zirconia, or silica-zirconia-alumina, said inorganic oxide having a pore volume of at least about 0.4 cc per gram.
Claim 16
Dependent Claim
63 words
The catalyst of claim 11 wherein said weighting agent is clay, said weighting agent is from about 30 to 50 weight percent of said matrix and said inorganic oxide is correspondingly from about 70 to 50 weight percent of said matrix, and said crystalline aluminosilicate zeolite is present in said composite in an amount of from about 5 to 15 percent by weight.
Claim 17
Dependent Claim
24 words
A method of catalytically converting petroleum charge stocks comprising contacting a petroleum charge stream under catalytic conversion conditions with the catalyst of claim 10.
Claim 18
Dependent Claim
12 words
The method of claim 15 wherein the conversion process is catalytic cracking.
References Cited (Backward Citations)
US3463608A
Cited
US3556988A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-01-05 | 1979-07-07 | 1980-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-01-05 | 1983-07-07 | 1984-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-01-05 | 1987-07-07 | 1988-01-06 | $7700.00 | Window Closed / Lapsed |