Patent US3059773A successfully refreshed from Google Patents.
US3059773A
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Process for concentrating kainite by means of flotation
Assignee: Montedison SpA
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Filing: 1960-07-06
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Granted: 1962-10-23
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Expires: 1980-07-06
Abstract
No abstract record available.
Inventors
- 👤 Marullo Gerlando
- 👤 Perri Giovanni
- 👤 Tubiello Giuseppe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:35
CPC Classifications
B; B03; B03D; B03D1/00; B03D1/001; B03D1/004; B03D1/01; B03D1/008; B03D2201/00; B03D2201/02; B03D2201/04; B03D2203/00; B03D2203/02; B03D2203/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
IN A PROCESS OF CONCENTRATING KAINITE BY FROTH FLOTATION, IN WHICH A SUSPENSION IS FORMED OF COMMINUTED KAINITE CONTAINING MATERIAL IN SALINE WATER CONTAINING A FROTHING AGENT, THE IMPROVEMENT COMPRISING ADDING TO THE WATER AT LEAST ONE COMPOUND OF THE GROUP CONSISTING OF NORMAL PRIMARY ALIPHATIC AMINES OF THE FORMULA R-NH2 IN WHICH R IS A HYDROCARBON RADICAL HAVING FROM 8 TO 11 CARBON ATOMS AND IS TAKEN FROM THE GROUP CONSISTING OF ALKYL AND ALKENYL RADICALS, AND SALTS THEREOF WITH MINERAL ACIDS.
Claim 2
Dependent Claim
83 words
IN A PROCESS OF CONCENTRATING KAINITE BY FROTH FLOTATION, IN WHICH A SUSPENSION IS FORMED OF COMMINUTED KAINITE CONTAINING MATERIAL IN SALINE WATER CONTAINING A FROTHING AGENT, THE IMPROVEMENT COMPRISING ADDING TO THE WATER AT LEAST ONE COMPOUND OF THE GROUP CONSISTING OF NORMAL PRIMARY ALIPHATIC AMINES OF THE FORMULA R-NH2 IN WHICH R IS A HYDROCARBON RADICAL HAVING FROM 8 TO 11 CARBON ATOMS AND IS TAKEN FROM THE GROUP CONSISTING OF ALKYL AND ALKENYL RADICALS, AND SALTS THEREOF WITH MINERAL ACIDS.
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) | 1965-10-22 | 1966-04-23 | 1966-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-22 | 1970-04-23 | 1970-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-22 | 1974-04-23 | 1974-10-23 | $7700.00 | Window Closed / Lapsed |