US3833354A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for transforming liquid furnace slag into granules
Assignee: Knapsack AG
•
Filing: 1972-11-16
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Granted: 1974-09-03
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Expires: 1992-11-16
Abstract
Abstract Liquid furnace slag, more particularly liquid phosphorus furnace slag, is transformed into granules. To this end, impinging contact between a free falling stream of liquid slag and a focused stream of water maintained under a pressure between 0.5 and 1.5 atmospheres gauge is produced so as to effect break-up of the slag into particles. The resulting particles are delivered to, and complete solidification thereof is effected in, a cooling zone having water therein.
Inventors
- 👤 U Thummler
- 👤 H Werner
- 👤 H Kerber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:51
CPC Classifications
C; C21; C21B; C21B3/00; C21B3/04; C21B3/06; C21B3/08; C21B2400/00; C21B2400/02; C21B2400/022; C21B2400/024; C21B2400/05; C21B2400/062
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US443898A
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US1699575A
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US2533633A
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US2569779A
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US3523015A
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US3615329A
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US3720506A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-09-02 | 1978-03-04 | 1978-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-02 | 1982-03-04 | 1982-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-02 | 1986-03-04 | 1986-09-03 | $7700.00 | Window Closed / Lapsed |