US3701480A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and process for atomizing liquids,particularly carbon black raw materials
Assignee: Evonik Operations GmbH
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Filing: 1971-05-26
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Granted: 1972-10-31
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Expires: 1991-05-26
Abstract
Abstract There is provided an apparatus for atomizing a liquid by means of a gas comprising a nozzle at one end, a jacket pipe for gas contracting at said one end, a feed pipe for liquid arranged axially inside said jacket pipe and terminating therein as a constricted end, the length of both pipe ends in the axial direction being at most 10 times the inner diameter of the jacket tube. The apparatus is preferably used in the production of furnace blacks wherein the liquid hydrocarbon raw material is introduced into an atomizing stream of higher velocity and the dispersion is then separated into a reaction chamber.
Inventors
- 👤 Gerhard Kuhner
- 👤 Heinrich Sauer
- 👤 Gerhard Jager
- 👤 Gerhard Dusing
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:00
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/44; C09C1/48; C09C1/50; C01; C01P; C01P2006/00; C01P2006/12; C01P2006/19
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
169 words
Apparatus for atomizing a liquid in a gas comprising a jacket pipe having a conStant cross-section over its major axial length which tapers at one end for conducting said gas, a nozzle having a cylindrical orifice connected to the tapered end of said jacket pipe and a feed pipe having a constant cross-section over its major axial length enclosed and terminating with an internal taper within said jacket pipe adjacent said one end thereof for conducting said liquid toward said tapered end of said jacket pipe, the distance between the tapered, downstream ends of said jacket pipe and said feed pipe in the axial direction being in the range of one tenth to ten times the inner diameter of said jacket pipe whereby said liquid is accelerated in the tapered end of said feed pipe and then is atomized in said gas when said gas is under going acceleration due to the tapering of said jacket pipe and then the mixture is increased in velocity due to said nozzle.
Claim 2
Dependent Claim
169 words
Apparatus for atomizing a liquid in a gas comprising a jacket pipe having a conStant cross-section over its major axial length which tapers at one end for conducting said gas, a nozzle having a cylindrical orifice connected to the tapered end of said jacket pipe and a feed pipe having a constant cross-section over its major axial length enclosed and terminating with an internal taper within said jacket pipe adjacent said one end thereof for conducting said liquid toward said tapered end of said jacket pipe, the distance between the tapered, downstream ends of said jacket pipe and said feed pipe in the axial direction being in the range of one tenth to ten times the inner diameter of said jacket pipe whereby said liquid is accelerated in the tapered end of said feed pipe and then is atomized in said gas when said gas is under going acceleration due to the tapering of said jacket pipe and then the mixture is increased in velocity due to said nozzle.
Claim 3
Dependent Claim
21 words
An apparatus according to claim 1 wherein said feed pipe is movable along its longitudinal axis relative to said jacket pipe.
Claim 4
Dependent Claim
19 words
An apparatus according to claim 2 wherein said feed pipe ends in the tapered region of said jacket pipe.
Claim 5
Dependent Claim
19 words
An apparatus according to claim 1 wherein said feed pipe ends in the tapered region of said jacket pipe.
Claim 6
Dependent Claim
26 words
An apparatus according to claim 4 wherein said nozzle has a bore hole the open diameter of which is smaller than that of the jacket pipe.
Claim 7
Dependent Claim
13 words
An apparatus according to claim 5 wherein said nozzle has a cylindrical bore.
Claim 8
Dependent Claim
13 words
An apparatus according to claim 5 wherein said nozzle has a converging-diverging shape.
References 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) | 1975-10-31 | 1976-05-01 | 1976-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-31 | 1980-05-01 | 1980-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-31 | 1984-05-01 | 1984-10-31 | $7700.00 | Window Closed / Lapsed |