US2837400A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trioxodizirconium hydroxy halides
Assignee: NL Industries Inc
•
Filing: 1954-05-27
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Granted: 1958-06-03
•
Expires: 1974-05-27
Abstract
No abstract record available.
Inventors
- 👤 Blumenthal Warren Barnett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:33
CPC Classifications
C; C01; C01G; C01G25/00; C01G25/04
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
42 words
A BASIC ZIRCONIUM HALIDE IN THE FORM OF A WATERSOLUBLE, GLASS-LIKE SOLID HAVING A COMPOSITION CORRESPONDING TO THE FORMULA ZR2O3OHX YH2O WHERE "X" IS A HALOGEN SELECTED FROM THE GROUP CONSISTING OD CHLORINE, BROMINE, AND IODINE AND "Y" IS A VARIABLE NUMBER.
Claim 2
Dependent Claim
42 words
A BASIC ZIRCONIUM HALIDE IN THE FORM OF A WATERSOLUBLE, GLASS-LIKE SOLID HAVING A COMPOSITION CORRESPONDING TO THE FORMULA ZR2O3OHX YH2O WHERE "X" IS A HALOGEN SELECTED FROM THE GROUP CONSISTING OD CHLORINE, BROMINE, AND IODINE AND "Y" IS A VARIABLE NUMBER.
Claim 3
Dependent Claim
121 words
A PROCESS FOR MAKING A BASIC ZIRCONIUM HALIDE CORRESPONDING TO THE FORMULA ZR2O3OHX.YH2O WHERE "X" IS A HALOGEN SELECTED FROM THE GROUP CONSISTING OF CHLORINE, BROMINE, AND IODINE AND "Y" IS A VARIABLE NUMBER, WHICH COMPRISES ADDING AN AQUEOUS SOLUTION OF A ZIRCONYL HALIDE TO A MIXTURE OF WATER AND A CARBONATE SELECTED FROM THE CLASS CONSISTING OF ALKALI METAL CARBONATES AND ALKALINEEARTH METAL CARBONATES TO FORM AN AQUEOUS SUSPENSION OF A PRECIPITATE, SAID SUSPENSION HAVING A PH OF SUBSTANTIALLY 4.0, FILTERING OUT AND WASHING SAID PRECIPITATE, DISSOLVING SAID PRECIPITATE IN A HYDROHALOGEN ACID, SAID ACID BEING ADDED IN A MOLAL RATIO OF 1:2 WITH RESPECT TO THE ZIRCONIUM CONTENT, EXPRESSED AS ZRO2, OF SAID PRECIPITATE, AND EVAPORATING THE SOLUTION OBTAINED.
Claim 4
Dependent Claim
121 words
A PROCESS FOR MAKING A BASIC ZIRCONIUM HALIDE CORRESPONDING TO THE FORMULA ZR2O3OHX.YH2O WHERE "X" IS A HALOGEN SELECTED FROM THE GROUP CONSISTING OF CHLORINE, BROMINE, AND IODINE AND "Y" IS A VARIABLE NUMBER, WHICH COMPRISES ADDING AN AQUEOUS SOLUTION OF A ZIRCONYL HALIDE TO A MIXTURE OF WATER AND A CARBONATE SELECTED FROM THE CLASS CONSISTING OF ALKALI METAL CARBONATES AND ALKALINEEARTH METAL CARBONATES TO FORM AN AQUEOUS SUSPENSION OF A PRECIPITATE, SAID SUSPENSION HAVING A PH OF SUBSTANTIALLY 4.0, FILTERING OUT AND WASHING SAID PRECIPITATE, DISSOLVING SAID PRECIPITATE IN A HYDROHALOGEN ACID, SAID ACID BEING ADDED IN A MOLAL RATIO OF 1:2 WITH RESPECT TO THE ZIRCONIUM CONTENT, EXPRESSED AS ZRO2, OF SAID PRECIPITATE, AND EVAPORATING THE SOLUTION OBTAINED.
References Cited (Backward Citations)
US2316141A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-02 | 1961-12-02 | 1962-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-02 | 1965-12-02 | 1966-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-02 | 1969-12-02 | 1970-06-03 | $7700.00 | Window Closed / Lapsed |