Apparatus for the combustion of titanium tetrachloride with oxygen for the production of titanium dioxide pigment
Abstract
Abstract APPARATUS FOR THE COMBUSTION OF TITANIUM TETRACHLORIDE WITH OXYGEN TO TITANIUM DIOXIDE INTO A REACTION CHAMBER, THE APPARATUS COMPRISES A TUBULAR CYLINDRICAL VORTEX CHAMBER WITH AN OUTLET AND EQUIPPED WITH A FLARE TOWARDS THE REACTION CHAMBER; A FEEDING DEVICE FOR THE VORTEX CHAMBER CONSISTING OF THREE DUCTS COAXIAL ONE WITH EACH OTHER AND WITH THE VORTEX CHAMBER, THE INNER ONE OF SAID DUCTS FEEDING ONE OF TWO AUXILIARY REACTANTS HAS NO SWIRL DEVICES, THE MIDDLE ONE, FEEDING A SECOND AUXILIARY REACTANT IS EQUIPPED WITH A SWIRL DEVICE. THE COAXIAL FLARE ENDING IN THE REACTION CHAMBER DIVERGES IN ITS LAST PART FROM THE TUBULAR BODY OF AN ANGLE COMPRISED BETWEEN 10* AND 45*. THE RATIO OF THE LENGTH OF THE CONICAL FLARE VERSUS THE DIAMETER OF THE TUBULAR BODY IS BETWEEN 0.15 AND 1. THE RATIO BETWEEN THE LENGTH OF THE VORTEX CHAMBER AND THE DIAMETER OF SAID CHAMBER IS BETWEEN 0 AND 3. THE RATIO OF THE LENGTH OF THE PORTION OF THE DUCT WHERE THE MIXING OF THE AUXILIARY REACTING SUBSTANCES OCCURS, AND THE DIAMETER OF THE DUCT IS BETWEEN 2 AND 10.
Inventors
- 👤 Gianfranco Bedetti
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-07-11 | 1976-01-10 | 1976-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-11 | 1980-01-10 | 1980-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-11 | 1984-01-10 | 1984-07-11 | $7700.00 | Window Closed / Lapsed |