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US4597873A Expired / Lapsed US ⏱️ 0.0 years remaining

Process of mass transfer and material separation using a microchannel plate

Assignee: United States Department of the Army
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Filing: 1985-02-21
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Granted: 1986-07-01
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Expires: 2005-02-21
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Abstract

Abstract A process involving mass transfer between two fluid cavities through the nnels of a microchannel plate (MCP). The mass transfer process may involve separation of organic chemicals like petrochemicals, vegetable oils, inorganic chemicals like steam stripping of bromine from aqueouspotassium chloride/potassium bromide, corrosive as well as sepration of hazardous gases. The MCP structures may have an electric field or electromagnetic field across the MCP to create synergestic mass transfer separation potential either to increase or decrease separations. Blood filtering as well as other biomedical separations are possible by this synergestic mass transfer. Catalytic depositions within the channels of the MCPs, either as wall coatings with the channels open or as solid porous catalytic material that has osmosis action thereacross further enhances chemical reactions during the separation process or during passage through the channels. This procedure can also be used for gas clean-up, such as combustor discharges.

Inventors

  • 👤 Bipin C. Almaula

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-09 03:40
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/34; B01D53/74; B01D53/86; B01D3/00; B01D3/14; B01D3/16; B01D3/22; C; C01; C01B; C01B7/00; C01B7/01; C01B7/07; C01B7/0743; C01B7/09; C01B7/096; B01J; B01J35/00; B01J35/50; B01J35/56

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 152 words
A process of mass transfer between cross-flowing fluids in two cavities in a fluid containment housing comprising the steps of: placing at least one microchannel plate mounted on a plate holder between said two fluid cavities, said at least one microchannel plate having a plurality of channels wherein the diameter of each channel is about 4 to 100 microns, said plurality of channels having porous material contained therein, said porous material being impregnated with bromo benzene fluid; flowing chlorine in a fluid base through one of said two fluid cavities; and passing calcium carbonate dissolved in water through the other of said two fluid cavities whereby said chlorine migrates through said porous material within the channels by dissolving within said bromo benzene fluid and said calcium carbonate reacts with the chlorine migrating through said porous material resulting in the formation of calcium chloride and the removal of chlorine from said fluid base.
Claim 2
Dependent Claim 152 words
A process of mass transfer between cross-flowing fluids in two cavities in a fluid containment housing comprising the steps of: placing at least one microchannel plate mounted on a plate holder between said two fluid cavities, said at least one microchannel plate having a plurality of channels wherein the diameter of each channel is about 4 to 100 microns, said plurality of channels having porous material contained therein, said porous material being impregnated with bromo benzene fluid; flowing chlorine in a fluid base through one of said two fluid cavities; and passing calcium carbonate dissolved in water through the other of said two fluid cavities whereby said chlorine migrates through said porous material within the channels by dissolving within said bromo benzene fluid and said calcium carbonate reacts with the chlorine migrating through said porous material resulting in the formation of calcium chloride and the removal of chlorine from said fluid base.
Claim 3
Dependent Claim 15 words
A process as set forth in claim 1 wherein said fluid base is a liquid.
Claim 4
Dependent Claim 15 words
A process as set forth in claim 1 wherein said fluid base is a gas.

References Cited (Backward Citations)

US3503712A Cited
US3520416A Cited
US3692648A Cited
JPS5273183A Cited
US4322629A Cited
US4363644A Cited
US4447262A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1989-06-30 1989-12-30 1990-07-01 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1993-06-30 1993-12-30 1994-07-01 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1997-06-30 1997-12-30 1998-07-01 $7700.00 Window Closed / Lapsed

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