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US5480547A
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US
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Corrosive liquid coalescer
Assignee: Pall Corp
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Filing: 1994-03-08
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Granted: 1996-01-02
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Expires: 2014-03-08
Abstract
Abstract A liquid purification system capable of separating a first liquid from a second liquid, in which the first liquid is a corrosive aqueous liquid that is wholly or partly immiscible in and forms a discontinuous phase with a second, continuous phase-forming organic liquid is provided including a housing, a fluid inlet in the housing, a first liquid outlet in the housing, a second liquid outlet in the housing, at least one coalescing assembly for coalescing the first liquid, and a liquid separating region in the housing. The coalescing assembly has at least one coalescing element which includes a halocarbon polymer packing material having a solid capture efficiency of as high as 20 μm, is substantially chemically inert to corrosive liquids and is adapted to separate liquids differing in interfacial tension of at least about 0.6 dynes/cm. A coalescing element for coalescing a first liquid from a second liquid, in which the first liquid is a corrosive aqueous liquid that is wholly or partly immiscible in and forms a discontinuous phase with the second, continuous phase-forming organic liquid is also provided which includes a halocarbon polymer packing material having at least one porous, fibrous, non-woven web. The web having a solid capture efficiency of as high as about 20 μm, and is adapted to separate liquids differing in interfacial tension of as low as 0.6 dynes/cm.
Inventors
- 👤 Kenneth M. Williamson
- 👤 Scott A. Whitney
- 👤 Alan R. Rausch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:23
CPC Classifications
B; B01; B01D; B01D17/00; B01D17/02; C; C10; C10M; C10M175/00; C10M175/04; B01D17/04; B01D17/045; Y; Y10; Y10S; Y10S210/00; Y10S210/05
Claims Analysis
Total Claims: 29
Claim 1
Independent Claim
147 words
A liquid purification system capable of separating a first liquid from a second liquid, in which the first liquid is a corrosive aqueous liquid that is wholly or partly immiscible in and forms a discontinuous phase with a second, continuous phase-forming organic liquid comprising: (a) a housing; (b) a fluid inlet in said housing; (c) a first liquid outlet in said housing; (d) a second liquid outlet in said housing; (e) at least one coalescing assembly for coalescing said first liquid wherein said at least one coalescing assembly comprises at least one coalescing element which includes a halocarbon polymer packing material which has a solid capture efficiency of as high as 20 μm, which is substantially chemically inert to corrosive liquids and which is adapted to separate liquids differing in interfacial tension of at least about 0.6 dynes/cm; and (f) a liquid separating region in said housing.
Claim 2
Dependent Claim
147 words
A liquid purification system capable of separating a first liquid from a second liquid, in which the first liquid is a corrosive aqueous liquid that is wholly or partly immiscible in and forms a discontinuous phase with a second, continuous phase-forming organic liquid comprising: (a) a housing; (b) a fluid inlet in said housing; (c) a first liquid outlet in said housing; (d) a second liquid outlet in said housing; (e) at least one coalescing assembly for coalescing said first liquid wherein said at least one coalescing assembly comprises at least one coalescing element which includes a halocarbon polymer packing material which has a solid capture efficiency of as high as 20 μm, which is substantially chemically inert to corrosive liquids and which is adapted to separate liquids differing in interfacial tension of at least about 0.6 dynes/cm; and (f) a liquid separating region in said housing.
Claim 3
Dependent Claim
106 words
A coalescing element for coalescing a first liquid from a second liquid, in which the first liquid is a corrosive aqueous liquid that is wholly or partly immiscible in and forms a discontinuous phase with the second, continuous phase-forming organic liquid comprising the components: a porous, fibrous structure including fluorocarbon polymer fibers, end caps, core and a cage, each of the components being formed from materials which are highly resistant to corrosive liquids, wherein said fibrous structure has a solid capture efficiency of as high as about 20 μm and is adapted to separate liquids differing in interfacial tension of as low as about 0.6. dynes/cm.
Claim 4
Dependent Claim
106 words
A coalescing element for coalescing a first liquid from a second liquid, in which the first liquid is a corrosive aqueous liquid that is wholly or partly immiscible in and forms a discontinuous phase with the second, continuous phase-forming organic liquid comprising the components: a porous, fibrous structure including fluorocarbon polymer fibers, end caps, core and a cage, each of the components being formed from materials which are highly resistant to corrosive liquids, wherein said fibrous structure has a solid capture efficiency of as high as about 20 μm and is adapted to separate liquids differing in interfacial tension of as low as about 0.6. dynes/cm.
Claim 5
Dependent Claim
150 words
A liquid purification system capable of separating a first liquid from a second liquid, in which the first liquid is a corrosive aqueous liquid that is wholly or partly immiscible in and forms a discontinuous phase with a second, continuous phase-forming organic liquid comprising the components: (a) a housing; (b) a fluid inlet in said housing; (c) a first liquid outlet in said housing; (d) a second liquid outlet in said housing; (e) at least one coalescing assembly for coalescing said first liquid including at least one coalescing element which includes a halocarbon polymer packing material having a solid capture efficiency of as high as about 20 μm and is adapted to separate liquids differing in interfacial tension of as low as about 0.6 dynes/cm; and (f) a liquid separating region in said housing wherein each of the components is formed from materials which are highly resistant to corrosive liquids.
Claim 6
Dependent Claim
150 words
A liquid purification system capable of separating a first liquid from a second liquid, in which the first liquid is a corrosive aqueous liquid that is wholly or partly immiscible in and forms a discontinuous phase with a second, continuous phase-forming organic liquid comprising the components: (a) a housing; (b) a fluid inlet in said housing; (c) a first liquid outlet in said housing; (d) a second liquid outlet in said housing; (e) at least one coalescing assembly for coalescing said first liquid including at least one coalescing element which includes a halocarbon polymer packing material having a solid capture efficiency of as high as about 20 μm and is adapted to separate liquids differing in interfacial tension of as low as about 0.6 dynes/cm; and (f) a liquid separating region in said housing wherein each of the components is formed from materials which are highly resistant to corrosive liquids.
Claim 7
Dependent Claim
154 words
A liquid purification system capable of separating a first liquid from a second liquid, in which the first liquid is a corrosive aqueous liquid that is wholly or partly immiscible in and forms a discontinuous phase with a second, continuous phase-forming organic liquid comprising: (a) a housing; (b) a fluid inlet in said housing; (c) a first liquid outlet in said housing; (d) a second liquid outlet in said housing; (e) at least one coalescing assembly for coalescing said first liquid wherein said at least one coalescing assembly comprises at least one coalescing element which includes a halocarbon polymer packing material that is substantially chemically inert to corrosive liquids, includes at least one porous, fibrous, non-woven web having a solid capture efficiency of as high as about 20 μm, and is adapted to separate liquids differing in interfacial tension of as low as 0.6 dynes/cm; and (f) a liquid separating region in said housing.
Claim 8
Dependent Claim
154 words
A liquid purification system capable of separating a first liquid from a second liquid, in which the first liquid is a corrosive aqueous liquid that is wholly or partly immiscible in and forms a discontinuous phase with a second, continuous phase-forming organic liquid comprising: (a) a housing; (b) a fluid inlet in said housing; (c) a first liquid outlet in said housing; (d) a second liquid outlet in said housing; (e) at least one coalescing assembly for coalescing said first liquid wherein said at least one coalescing assembly comprises at least one coalescing element which includes a halocarbon polymer packing material that is substantially chemically inert to corrosive liquids, includes at least one porous, fibrous, non-woven web having a solid capture efficiency of as high as about 20 μm, and is adapted to separate liquids differing in interfacial tension of as low as 0.6 dynes/cm; and (f) a liquid separating region in said housing.
Claim 9
Dependent Claim
84 words
A coalescing element for coalescing a first liquid from a second liquid, in which the first liquid is a corrosive aqueous liquid that is wholly or partly immiscible in and forms a discontinuous phase with the second, continuous phase-forming organic liquid comprising a halocarbon polymer packing material which includes at least one porous, fibrous, non-woven web having a solid capture efficiency of as high as about 20 μm, and is adapted to separate liquids differing in interfacial tension of as low as 0.6 dynes/cm.
Claim 10
Dependent Claim
84 words
A coalescing element for coalescing a first liquid from a second liquid, in which the first liquid is a corrosive aqueous liquid that is wholly or partly immiscible in and forms a discontinuous phase with the second, continuous phase-forming organic liquid comprising a halocarbon polymer packing material which includes at least one porous, fibrous, non-woven web having a solid capture efficiency of as high as about 20 μm, and is adapted to separate liquids differing in interfacial tension of as low as 0.6 dynes/cm.
Claim 11
Dependent Claim
16 words
A liquid purification system according to claim 4 wherein said packing material comprises a fluorocarbon polymer.
Claim 12
Dependent Claim
19 words
A liquid purification system according to claim 4 wherein said packing material comprises a copolymer of ethylene and chlorofluoroethylene.
Claim 13
Dependent Claim
14 words
A liquid purification system according to claim 4 wherein said packing material comprises polytetrafluoroethylene.
Claim 14
Dependent Claim
15 words
A liquid purification system according to claim 4 wherein said packing material comprises polyvinylidene difluoride.
Claim 15
Dependent Claim
36 words
A liquid purification system according to claim 4 wherein said at least one coalescing assembly comprises a plurality of coalescing elements, each of which is arranged within said at least one coalescing assembly in parallel relationship.
Claim 16
Dependent Claim
25 words
A coalescing element according to claim 2 wherein said packing of said at least one coalescing element includes at least one porous fibrous, non-woven web.
Claim 17
Dependent Claim
21 words
A liquid purification system according to claim 4 wherein said at least one coalescing assembly comprises a plurality of coalescing elements.
Claim 18
Dependent Claim
18 words
A liquid purification system according to claim 4 wherein said liquid separating region comprises a gravity separation region.
Claim 19
Dependent Claim
19 words
A liquid purification system according to claim 4 wherein said liquid separating region comprises at least one separating element.
Claim 20
Dependent Claim
52 words
A coalescing element according to claim 2, further including a polymeric or metal mesh support sleeve and a metal support core, each of said fibrous structure, support sleeve and support core having a cylindrical configuration and concentric relationship, and end caps sealingly attached to said fibrous structure, support sleeve and support core.
Claim 21
Dependent Claim
21 words
A liquid purification system according to claim 4 wherein said packing comprises polytetrafluoroethylene fibers in a fluorinated ethylene propylene resin binder.
Claim 22
Dependent Claim
24 words
A liquid purification system according to claim 4 wherein each of the components is formed from materials which are highly resistant to corrosive liquids.
Claim 23
Dependent Claim
18 words
A liquid purification system according to claim 3 wherein said liquid separating region comprises a gravity separation region.
Claim 24
Dependent Claim
18 words
A liquid purification system according to claim 4 wherein said liquid separating region comprises a gravity separation region.
Claim 25
Dependent Claim
15 words
A coalescing element according to claim 5 wherein said packing material comprises a fluorocarbon polymer.
Claim 26
Dependent Claim
18 words
A coalescing element according to claim 5 wherein said packing material comprises a copolymer of ethylene and chlorotrifluoroethylene.
Claim 27
Dependent Claim
13 words
A coalescing element according to claim 5 wherein said packing material comprises polytetrafluoroethylene.
Claim 28
Dependent Claim
14 words
A coalescing element according to claim 5 wherein said packing material comprises polyvinylidene difluoride.
Claim 29
Dependent Claim
19 words
A liquid purification system according to claim 3 wherein said liquid separating region comprises at least one separating element.
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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) | 1999-01-01 | 1999-07-03 | 2000-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-01-01 | 2003-07-03 | 2004-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-01-01 | 2007-07-03 | 2008-01-02 | $7700.00 | Window Closed / Lapsed |