Patent US3855368A successfully refreshed from Google Patents.
US3855368A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for bringing fluid phases into mutual contact
Assignee: Czech Academy of Sciences
•
Filing: 1972-04-26
•
Granted: 1974-12-17
•
Expires: 1992-04-26
Abstract
Abstract The apparatus consists of an upright vertical column for bringing fluid phases into mutual contact, comprising a set of perforated trays and means for bringing said trays and the fluid phases into relative movement. Each tray is provided with both small and large apertures of which the former designed for passing a dispersed phase of phases are positioned opposite the large apertures in the adjacent trays, and vice versa, the lastmentioned large apertures being designed for passing a continuous phase or phases. Relations between areas of the two apertures sized, between the number of large apertures and the sum of all apertures, and between total perforated and solid areas of the tray are specified. The large apertures are provided with slanted, or tangential extensions as to control a helical phase flow course respective to the column axis. The apparatus operates upon counterflow principle, a lighter phase ascending to the column top and a heavier phase falling down to the bottom thereof. The group of small and large apertures are regularly staggered in the trays in such a way that the path of the crossflow of the continuous phase between large apertures of adjacent trays is sufficiently long to secure the desired efficiency of the extraction but simultaneously sufficiently short to avoid too long pressure gradients.
Inventors
- 👤 J Prochazka
- 👤 V Rod
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:58
CPC Classifications
B; B01; B01J; B01J19/00; B01J19/18; B01J19/185; B01D; B01D11/00; B01D11/04; B01D11/0426; B01D11/043; B01D11/0438; B01D3/00; B01D3/14; B01D3/16; B01D3/22; B01J2219/00; B01J2219/00049; B01J2219/00051; B01J2219/00074; B01J2219/00087; B01J2219/00094; B01J2219/00164; B01J2219/00177
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
149 words
Apparatus for bringing fluid phases into mutual contact, comprising, in combination, confining means for confining a fluid phase or phases in an enclosed space; feed means and withdrawing means provided on two opposite sides of said enclosed space for supplying and discharging fluid phases thereinto and thereout, respectively; at least two perforated means disposed above one another in said enclosed space and provided each with alternately spaced apart apertures of two different sizes for passing said fluid phases, the smaller of them designed for passing a dispersed phase or phases, being positioned in one perforated means opposite the larger apertures designed for passing a continuous phase, in both upward and downward adjacent perforated means, wherein the larger apertures are provided wiTh extensions which are disposed tangentially respective to the axis of the enclosed space; and means for bringing the perforated means and said fluid phases into relative reciprocating movement.
Claim 2
Dependent Claim
149 words
Apparatus for bringing fluid phases into mutual contact, comprising, in combination, confining means for confining a fluid phase or phases in an enclosed space; feed means and withdrawing means provided on two opposite sides of said enclosed space for supplying and discharging fluid phases thereinto and thereout, respectively; at least two perforated means disposed above one another in said enclosed space and provided each with alternately spaced apart apertures of two different sizes for passing said fluid phases, the smaller of them designed for passing a dispersed phase or phases, being positioned in one perforated means opposite the larger apertures designed for passing a continuous phase, in both upward and downward adjacent perforated means, wherein the larger apertures are provided wiTh extensions which are disposed tangentially respective to the axis of the enclosed space; and means for bringing the perforated means and said fluid phases into relative reciprocating movement.
Claim 3
Dependent Claim
156 words
Apparatus for bringing fluid phases into mutual contact, comprising, in combination, confining means for confining a fluid phase or phases in an enclosed space; feed means and withdrawing means provided on two opposite sides of said enclosed space for supplying and discharging fluid phases thereinto and therefrom, respectively; at least two perforated means disposed above one another in said enclosed space and each provided with alternately spaced-apart apertures of two different sizes for passing fluid phases, the smaller of said apertures being designed for passing a dispersed phase or phases and being positioned in one perforated means opposite the larger apertures of the other perforated means which are designed for passing a continuous phase, in both upward and downward adjacent perforated means, said larger apertures being provided with extensions which include an acute angle with the plane of said perforated means; and means for bringing the perforated means and said fluid phases into relative reciprocating movement.
Claim 4
Dependent Claim
156 words
Apparatus for bringing fluid phases into mutual contact, comprising, in combination, confining means for confining a fluid phase or phases in an enclosed space; feed means and withdrawing means provided on two opposite sides of said enclosed space for supplying and discharging fluid phases thereinto and therefrom, respectively; at least two perforated means disposed above one another in said enclosed space and each provided with alternately spaced-apart apertures of two different sizes for passing fluid phases, the smaller of said apertures being designed for passing a dispersed phase or phases and being positioned in one perforated means opposite the larger apertures of the other perforated means which are designed for passing a continuous phase, in both upward and downward adjacent perforated means, said larger apertures being provided with extensions which include an acute angle with the plane of said perforated means; and means for bringing the perforated means and said fluid phases into relative reciprocating movement.
Claim 5
Dependent Claim
36 words
Apparatus as defined in claim 2, wherein all said extensions are angularly disposed so as to allow a unidirectional helical flow course of said fluid phase or phases respectively to the axis of the enclosed space.
References Cited (Backward Citations)
US835118A
Cited
US2061830A
Cited
US2561669A
Cited
US2460004A
Cited
US2667407A
Cited
US3016234A
Cited
US3330535A
Cited
US3488037A
Cited
US3549134A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-12-16 | 1978-06-17 | 1978-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-16 | 1982-06-17 | 1982-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-16 | 1986-06-17 | 1986-12-17 | $7700.00 | Window Closed / Lapsed |