US3856702A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aluminum borate catalyst compositions
Assignee: Union Oil Company of California
•
Filing: 1972-11-16
•
Granted: 1974-12-24
•
Expires: 1992-11-16
Abstract
Abstract Certain crystalline aluminum borate catalyst supports containing about 8-25 weight-percent of B2O3 are found to provide unusually stable and active catalysts for high-temperature chemical conversions, particularly exhaust gas conversion, when prepared by precalcining shaped composites of alumina and boria at temperatures between about 1,250* and 2,600*F., prior to the addition thereto of active metal or metals. Calcination at below 1,250*F. is found to yield amorphous catalysts of inferior activity, while at temperatures above 2,600*F. drastic reductions in surface area may occur.
Inventors
- 👤 D Mcarthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 00:31
CPC Classifications
C; C10; C10G; C10G35/00; C10G35/04; C10G35/06; B; B01; B01D; B01D53/00; B01D53/34; B01D53/92; B01D53/94; B01D53/9404; B01D53/9409; B01D53/9413; B01J; B01J21/00; B01J21/02; B01J21/04; B01J23/00; B01J23/70; C01; C01B; C01B3/00; C01B3/02; C01B3/32; C01B3/34; C01B3/38; C01B3/40; C07; C07C; C07C1/00; C07C1/02; C07C1/12; B01D2255/00; B01D2255/20; B01D2255/207; B01D2255/20738; B01D2255/20761; B01D2255/90; B01D2255/92; B01D2255/9207; B01J35/00; B01J35/50; B01J35/56; C01B2203/00; C01B2203/10; C01B2203/1041; C01B2203/1047; C01B2203/1052; C01B2203/1076; C07C2523/00; C07C2523/70; C07C2523/74; C07C2523/745; C07C2523/75; C07C2523/755; C07C2527/00; C07C2527/02; C07C2527/04; C07C2527/043; C07C2529/00; C07C2529/86; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/52
Claims Analysis
Total Claims: 39
Claim 1
Independent Claim
32 words
INTIMATELY ADMIXING FINELY DIVIDED ALUMINA IN A DRY OR HYDROUS STATE WITH SUFFICIENT BORA OR BORIA PRECURSOR TO PROVIDE IN THE FINSHED CATALYST A B2O3/AL2O3 WEIVHT RATIO BETWEEN ABOUT 8/92 AND 25/75;
Claim 2
Dependent Claim
32 words
INTIMATELY ADMIXING FINELY DIVIDED ALUMINA IN A DRY OR HYDROUS STATE WITH SUFFICIENT BORA OR BORIA PRECURSOR TO PROVIDE IN THE FINSHED CATALYST A B2O3/AL2O3 WEIVHT RATIO BETWEEN ABOUT 8/92 AND 25/75;
Claim 3
Dependent Claim
69 words
A CATALYST COMPOSITION CONSISTING ESSENTIALLY OF A MINOR PROPORTION OF A CATALYTICALLY ACTIVE COMPOENT DISPERSED AND SUPPORTED ON A SHAPED, POROUS COHESIVE ENGGREGATE CONSISTING ESSENTIALLY OF CRYSTALLINE ALUMINUM BORATE, SAID CATALYTICALLY ACTIVE COMPONENT COMPRISING AT LEAST ONE MEMBER SELECTED FROM THE GROUP CONSISTING OF THE METALS OF GROUPS IB, IIB, VA, VIB, VIIB AND VIII, AND CATALYTICALLY ACTIVE COMPOUNDS THEREOF, SAID CATALYST HAVING BEEN PREPARED BY THE STEPS OF:
Claim 4
Dependent Claim
69 words
A CATALYST COMPOSITION CONSISTING ESSENTIALLY OF A MINOR PROPORTION OF A CATALYTICALLY ACTIVE COMPOENT DISPERSED AND SUPPORTED ON A SHAPED, POROUS COHESIVE ENGGREGATE CONSISTING ESSENTIALLY OF CRYSTALLINE ALUMINUM BORATE, SAID CATALYTICALLY ACTIVE COMPONENT COMPRISING AT LEAST ONE MEMBER SELECTED FROM THE GROUP CONSISTING OF THE METALS OF GROUPS IB, IIB, VA, VIB, VIIB AND VIII, AND CATALYTICALLY ACTIVE COMPOUNDS THEREOF, SAID CATALYST HAVING BEEN PREPARED BY THE STEPS OF:
Claim 5
Dependent Claim
15 words
FORMING THE RESULTING MIXTURE INTO AN AGGREGATE FOR A TIME AN SHAPED FOR CATALYTIC CONTRACTING;
Claim 6
Dependent Claim
15 words
FORMING THE RESULTING MIXTURE INTO AN AGGREGATE FOR A TIME AN SHAPED FOR CATALYTIC CONTRACTING;
Claim 7
Dependent Claim
20 words
A composition as defined in claim 1 wherein said catalytically active component comprises copper, or an oxide or sulfide thereof.
Claim 8
Dependent Claim
13 words
forming the resulting mixture into an aggregate of desired shape for catalytic contracting;
Claim 9
Dependent Claim
13 words
forming the resulting mixture into an aggregate of desired shape for catalytic contracting;
Claim 10
Dependent Claim
38 words
calcining the shaped aggregate for a time and at temperatures sufficient to form a cohesive crystalline aluminum borate aggregate having a surface area between about 1 and 150 m2/g and a porosity of at least about 0.1 ml/g;
Claim 11
Dependent Claim
38 words
calcining the shaped aggregate for a time and at temperatures sufficient to form a cohesive crystalline aluminum borate aggregate having a surface area between about 1 and 150 m2/g and a porosity of at least about 0.1 ml/g;
Claim 12
Dependent Claim
20 words
A composition as defined in claim 1 wherein said catalytically active component comprises nickel, or an oxide or sulfide thereof.
Claim 13
Dependent Claim
38 words
CALCINING THE SHAPED AGGREGATE FOR A TIME AND AT TEMPERATURES SUFFICIENT TO FORM A COHESIVE CRYSTALLINE ALUMINUM BORATE AGGREGATE HAVING A SURFACE AREA BETWEEN ABOUT 1 AND 150 M2/G AND A POROSITY OF AT LEAST ABOUT 0.1 M1/G;
Claim 14
Dependent Claim
38 words
CALCINING THE SHAPED AGGREGATE FOR A TIME AND AT TEMPERATURES SUFFICIENT TO FORM A COHESIVE CRYSTALLINE ALUMINUM BORATE AGGREGATE HAVING A SURFACE AREA BETWEEN ABOUT 1 AND 150 M2/G AND A POROSITY OF AT LEAST ABOUT 0.1 M1/G;
Claim 15
Dependent Claim
19 words
impregnating the calcined aggregate from step (3) with one or more soluble compounds of said catalytically active component; and
Claim 16
Dependent Claim
19 words
impregnating the calcined aggregate from step (3) with one or more soluble compounds of said catalytically active component; and
Claim 17
Dependent Claim
19 words
IMPREGNATING THE CLACINED AGGREGATE FROM STEP (3) WITH ONE OR MORE SOLUBLE COMPOUNDS OF SAID CATALYTICALLY ACTIVE COMPONENTS; AND
Claim 18
Dependent Claim
19 words
IMPREGNATING THE CLACINED AGGREGATE FROM STEP (3) WITH ONE OR MORE SOLUBLE COMPOUNDS OF SAID CATALYTICALLY ACTIVE COMPONENTS; AND
Claim 19
Dependent Claim
20 words
A composition as defined in claim 1 wherein said catalytically active component comprises cobalt, or an oxide or sulfide thereof.
Claim 20
Dependent Claim
44 words
A composition as defined in claim 1 wherein said catalytically active component comprises a mixture of copper or an oxide or sulfide thereof with at least one member selected from the class consisting of iron, cobalt and nickel and the oxides and sulfides thereof.
Claim 21
Dependent Claim
17 words
CALCINING THE IMPREGNATED AGGREGATE TO CONVERT SAID ONE OR MORE SOLUBLE COMPOUNDS TO A CATALYTICALLY ACTIVE FORM.
Claim 22
Dependent Claim
17 words
CALCINING THE IMPREGNATED AGGREGATE TO CONVERT SAID ONE OR MORE SOLUBLE COMPOUNDS TO A CATALYTICALLY ACTIVE FORM.
Claim 23
Dependent Claim
17 words
calcining the impregnated aggregate to convert said one or more soluble compounds to a catalytically active form.
Claim 24
Dependent Claim
17 words
calcining the impregnated aggregate to convert said one or more soluble compounds to a catalytically active form.
Claim 25
Dependent Claim
21 words
A composition as defined in claim 1 wherein said shaped aggregate is in the form of 1/32 - 1/2 inch granules.
Claim 26
Dependent Claim
20 words
A composition as defined in claim 6 wherein said catalytically active component comprises copper, or an oxide or sulfide thereof.
Claim 27
Dependent Claim
20 words
A composition as defined in claim 6 wherein said catalytically active component comprises nickel, or an oxide or sulfide thereof.
Claim 28
Dependent Claim
20 words
A composition as defined in claim 6 wherein said catalytically active component comprises cobalt, or an oxide or sulfide thereof.
Claim 29
Dependent Claim
44 words
A composition as defined in claim 6 wherein said catalytically active component comprises a mixture of copper or an oxide or sulfide thereof with at least one member selected from the class consisting of iron, cobalt and nickel and the oxides and sulfides thereof.
Claim 30
Dependent Claim
30 words
A composition as defined in claim 1 wherein said shaped aggregate is in the form of a monolithic structure traversed by channels of about 1/32 - 1/4 inch in diameter.
Claim 31
Dependent Claim
20 words
A composition as defined in claim 11 wherein said catalytically active component comprises copper, or an oxide or sulfide thereof.
Claim 32
Dependent Claim
20 words
A composition as defined in claim 11 wherein said catalytically active component comprises nickel, or an oxide or sulfide thereof.
Claim 33
Dependent Claim
20 words
A composition as defined in claim 11 wherein said catalytically active component comprises cobalt, or an oxide or sulfide thereof.
Claim 34
Dependent Claim
44 words
A composition as defined in claim 11 wherein said catalytically active component comprises a mixture of copper or an oxide or sulfide thereof with at least one member selected from the class consisting of iron, cobalt and nickel and the oxides and sulfides thereof.
Claim 35
Dependent Claim
35 words
A composition as defined in claim 1 wherein said shaped aggregate is in the form of a membranous Coating supported on an inert monolithic structure traversed by channels of about 1/32 -1/4 inch in diameter.
Claim 36
Dependent Claim
20 words
A composition as defined in claim 16 wherein said catalytically active component comprises copper, or an oxide or sulfide thereof.
Claim 37
Dependent Claim
20 words
A composition as defined in claim 16 wherein said catalytically active component comprises nickel, or an oxide or sulfide thereof.
Claim 38
Dependent Claim
20 words
A composition as defined in claim 16 wherein said catalytically active component comprises cobalt, or an oxide or sulfide thereof.
Claim 39
Dependent Claim
44 words
A composition as defined in claim 16 wherein said catalytically active component comprises a mixture of copper or an oxide or sulfide thereof with at least one member selected from the class consisting of iron, cobalt and nickel and the oxides and sulfides thereof.
References Cited (Backward Citations)
US2118143A
Cited
US2125743A
Cited
US3133029A
Cited
FR1299123A
Cited
DE1184331B
Cited
US3331787A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-12-23 | 1978-06-24 | 1978-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-23 | 1982-06-24 | 1982-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-23 | 1986-06-24 | 1986-12-24 | $7700.00 | Window Closed / Lapsed |