Patent US4388285A successfully refreshed from Google Patents.
US4388285A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the preparation of ZSM-5 utilizing transition metal complexes during crystallization
Assignee: Mobil Oil AS
•
Filing: 1981-11-12
•
Granted: 1983-06-14
•
Expires: 2001-11-12
Abstract
Abstract A series of transition metal complexes, having stability at relatively high pH, have been utilized as templates for the synthesis of ZSM-5 type zeolites.
Inventors
- 👤 Lillian A. Rankel
- 👤 Ernest W. Valyocsik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:03
CPC Classifications
C; C01; C01B; C01B39/00; C01B39/02; C01B39/06; C01B39/065; B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/40; C01B39/26; C01B39/265; C01B39/36; C01B39/38; C01B39/40; Y; Y10; Y10S; Y10S423/00; Y10S423/22
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
76 words
In the process for the synthesis of ZSM-5 from a forming solution containing a mixture of alumina, silica, alkali metal oxide and water, the improvement which comprises adding a complex selected from the group consisting of metal hydrogen phthalocyanines, iron cyclopentyldienyl complexes and metal complexes containing a --N--C--C--N-- aromatic grouping to the reaction mixture and maintaining the same at a temperature of from about 100° F. to about 400° F. until crystals of ZSM-5 are formed.
Claim 2
Dependent Claim
76 words
In the process for the synthesis of ZSM-5 from a forming solution containing a mixture of alumina, silica, alkali metal oxide and water, the improvement which comprises adding a complex selected from the group consisting of metal hydrogen phthalocyanines, iron cyclopentyldienyl complexes and metal complexes containing a --N--C--C--N-- aromatic grouping to the reaction mixture and maintaining the same at a temperature of from about 100° F. to about 400° F. until crystals of ZSM-5 are formed.
Claim 3
Dependent Claim
25 words
The process of claim 1 wherein the phthalocyanine has the following structural formula: ##STR8## wherein M is copper, cobalt, lithium, vanadium oxide (VO) or hydrogen.
Claim 4
Dependent Claim
79 words
The process of claim 1 wherein the iron cyclopentyldienyl complexes have the following formula: ##STR9## wherein R and R' are selected from the group consisting of hydrogen, a lower alkyl having 1-5 carbon atoms, and (CH 2 ) y N (CH 3 ) 3 wherein Y is 0 or 1 and X is bromide, chloride or iodide with the proviso that only one R or R' can be said (CH 2 ) y N (CH 3 ) 3 .
Claim 5
Dependent Claim
20 words
The process of claim 1 wherein the complex containing a --N--C--C--N-- aromatic grouping is either (a) ##STR10## or (b) ##STR11##
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) | 1986-06-13 | 1986-12-13 | 1987-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-06-13 | 1990-12-13 | 1991-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-06-13 | 1994-12-13 | 1995-06-14 | $7700.00 | Window Closed / Lapsed |