US4166159A
Expired / Lapsed
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Process for forming fast sodium-ion transport compositions
Assignee: Massachusetts Institute of Technology
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Filing: 1978-08-02
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Granted: 1979-08-28
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Expires: 1998-08-02
Abstract
Abstract Fast sodium-ion transport compositions of the formula: Na.sub.1+x Zr.sub.2 Si.sub.x P.sub.3-x O.sub.12 wherein x is greater than 0 and less than 3 are formed from ZrSiO 4 and anhydrous trisodium phosphate, disodium phosphate, mixtures of trisodium phosphate and disodium phosphate alone or with sodium phosphate.
Inventors
- 👤 Richard L. Pober
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:54
CPC Classifications
C; C01; C01B; C01B33/00; C01B33/20; C25; C25C; C25C3/00; C25C3/02; H; H01; H01M; H01M6/00; H01M6/14; H01M6/18; H01M6/185
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
61 words
The process of forming a fast sodium-ion transport composition of the formula: Na.sub.1+x Zr.sub.2 Si.sub.x P.sub.3-x O.sub.12 where x is a number greater than 0 and less than 3 which comprises reacting zirconium silicate with an anhydrous phosphate reactant selected from the group consisting of trisodium phosphate, a mixture of trisodium phosphate and disodium phosphate and mixtures thereof with monosodium phosphate.
Claim 2
Dependent Claim
61 words
The process of forming a fast sodium-ion transport composition of the formula: Na.sub.1+x Zr.sub.2 Si.sub.x P.sub.3-x O.sub.12 where x is a number greater than 0 and less than 3 which comprises reacting zirconium silicate with an anhydrous phosphate reactant selected from the group consisting of trisodium phosphate, a mixture of trisodium phosphate and disodium phosphate and mixtures thereof with monosodium phosphate.
Claim 3
Dependent Claim
13 words
The process of claim 1 wherein the anhydrous phosphate reactant is trisodium phosphate.
Claim 4
Dependent Claim
18 words
The process of claim 1 wherein the anhydrous phosphate is a mixture of trisodium phosphate and disodium phosphate.
Claim 5
Dependent Claim
17 words
The process of claim 1 wherein the reaction temperature is between about 1100° C. and 1150° C.
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) | 1982-08-27 | 1983-02-26 | 1983-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-08-27 | 1987-02-26 | 1987-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-08-27 | 1991-02-26 | 1991-08-28 | $7700.00 | Window Closed / Lapsed |