US2602727A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of zinc oxysulfate
Assignee: Tennessee Corp
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Filing: 1948-10-27
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Granted: 1952-07-08
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Expires: 1968-10-27
Abstract
No abstract record available.
Inventors
- 👤 Warren D Warinner
- 👤 Edward H Conroy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:00
CPC Classifications
C; C01; C01G; C01G9/00; C01G9/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
THE METHOD OF MAKING A ZINC PRODUCT PARTICULARLY ADAPTED FOR AGRICULTURAL USES AND CONSISTING ESSENTIALLY OF ZINC OXYSULPHATE HAVING A MOLAR RATIO OF APPROXIMATELY 5.0-5.5 PARTS OF ZINC TO ONE PART OF SULPHUR WHICH COMPRISES FORMING AN AQUEOUS SLURRY CONTAINING APPROXIMATELY FIVE MOLS OF ZINC OXIDE, FORMING AN AQUEOUS SOLUTION CONTAINING APPROXIMATELY ONE MOLE OF SULPHURIC ACID, ADDING THE ZINC OXIDE SLURRY TO THE ACID SOLUTION AND AGITATING THE MIXTURE WHILE MAINTAINING A REACTION TEMPERATURE OF ABOUT 180*-190* F. UNTIL THE PH OF THE MIXTURE INCREASES TO ABOUT 6.0-6.5, THE AMOUNT OF SOLIDS IN SAID MIXTURE BEING ABOUT 25-35% BY WEIGHT, THEREBY PRECIPITATING SAID ZINC OXYSULPHATE IN THE HOT MIXTURE IN FINELY DIVIDED FORM, THEN COOLING THE MIXTURE TO ABOUT 80*-100* F., THEN ADDING TO THE MIXTURE AN AMOUNT OF CALCIUM HYDROXIDE SUFFICIENT TO PRECIPITATE THE ZINC REMAINING IN SOLUTION, AND THEN SPRAY DRYING THE MIXTURE.
Claim 2
Independent Claim
146 words
THE METHOD OF MAKING A ZINC PRODUCT PARTICULARLY ADAPTED FOR AGRICULTURAL USES AND CONSISTING ESSENTIALLY OF ZINC OXYSULPHATE HAVING A MOLAR RATIO OF APPROXIMATELY 5.0-5.5 PARTS OF ZINC TO ONE PART OF SULPHUR WHICH COMPRISES FORMING AN AQUEOUS SLURRY CONTAINING APPROXIMATELY FIVE MOLS OF ZINC OXIDE, FORMING AN AQUEOUS SOLUTION CONTAINING APPROXIMATELY ONE MOLE OF SULPHURIC ACID, ADDING THE ZINC OXIDE SLURRY TO THE ACID SOLUTION AND AGITATING THE MIXTURE WHILE MAINTAINING A REACTION TEMPERATURE OF ABOUT 180*-190* F. UNTIL THE PH OF THE MIXTURE INCREASES TO ABOUT 6.0-6.5, THE AMOUNT OF SOLIDS IN SAID MIXTURE BEING ABOUT 25-35% BY WEIGHT, THEREBY PRECIPITATING SAID ZINC OXYSULPHATE IN THE HOT MIXTURE IN FINELY DIVIDED FORM, THEN COOLING THE MIXTURE TO ABOUT 80*-100* F., THEN ADDING TO THE MIXTURE AN AMOUNT OF CALCIUM HYDROXIDE SUFFICIENT TO PRECIPITATE THE ZINC REMAINING IN SOLUTION, AND THEN SPRAY DRYING THE MIXTURE.
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) | 1955-07-08 | 1956-01-07 | 1956-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-08 | 1960-01-07 | 1960-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-08 | 1964-01-07 | 1964-07-08 | $7700.00 | Window Closed / Lapsed |