WO2000010685A1 - Porous structures and methods and apparatus for forming porous structures - Google Patents

Porous structures and methods and apparatus for forming porous structures Download PDF

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Publication number
WO2000010685A1
WO2000010685A1 PCT/US1999/019153 US9919153W WO0010685A1 WO 2000010685 A1 WO2000010685 A1 WO 2000010685A1 US 9919153 W US9919153 W US 9919153W WO 0010685 A1 WO0010685 A1 WO 0010685A1
Authority
WO
WIPO (PCT)
Prior art keywords
porous
inorganic
slurry
inorganic particles
filter medium
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/US1999/019153
Other languages
English (en)
French (fr)
Inventor
Charles Love
Keith Rekczis
Scott Hopkins
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pall Corp
Original Assignee
Pall Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pall Corp filed Critical Pall Corp
Priority to JP2000565998A priority Critical patent/JP2002523617A/ja
Priority to AU58990/99A priority patent/AU5899099A/en
Priority to EP99946615A priority patent/EP1105201B1/en
Priority to DE69934802T priority patent/DE69934802T2/de
Priority to KR1020017002383A priority patent/KR20010072950A/ko
Publication of WO2000010685A1 publication Critical patent/WO2000010685A1/en
Anticipated expiration legal-status Critical
Priority to US11/504,601 priority patent/US20060273005A1/en
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
    • B01D39/2027—Metallic material
    • B01D39/2031—Metallic material the material being particulate
    • B01D39/2034—Metallic material the material being particulate sintered or bonded by inorganic agents

Definitions

  • the slurry can be agitated or mixed in any suitable manner and with any suitable apparatus.
  • the slurry can be mixed in a blender, or by a stirrer or a shaker.
  • the slurry can be agitated or mixed so that the inorganic particles in the slurry are uniformly dispersed.
  • the inorganic particles in the slurry, green structure or a subsequently formed porous inorganic filter medium will also be substantially uniformly distributed throughout the green structure of filter medium.
  • the uniform distribution of inorganic particles in a filter medium also provides for a substantially uniform distribution of pores (i.e., uniform porosity) to the filter medium.
  • Figure 1(a) is a schematic diagram of an example of a process for pressing a hat-shaped filter medium precursor 21, which can later processed (e.g., sintered) to form a hat-shaped porous inorganic filter medium.
  • Figure 1(b) shows a top view of the hat-shaped filter medium precursor 21 shown in Figure 1(a).
  • the hat- shaped filter medium precursor can be characterized as having three portions including a first portion 21(a), second portion 21(b), and a third portion 21(c).
  • the inorganic particles in the slurry can be sintered together.
  • the substrate has a higher sintering or melting temperature than the inorganic particles in the slurry.
  • the inorganic particles may comprise nickel and the substrate may comprise a higher temperature material such as stainless steel.
  • the impregnated substrate can be heated to a temperature sufficient to sinter the inorganic particles together, but not to the porous substrate.
  • At the impregnated region of the resulting filter element at least a portion of the porous inorganic filter medium and a portion of the porous substrate are mechanically engaged or interlocked at the surface of the porous substrate by means of the sintered inorganic particles locked in the pores of the substrate.
  • the engagement or interlocking between the porous inorganic filter medium and the porous substrate can occur without substantial fusing or sintering between the porous substrate and the porous inorganic filter medium.
  • the porous substrate and the porous inorganic filter medium can be joined together without the presence of a substantial number of sinter bonds between the porous structure of the filter medium and the porous structure of the porous substrate.
  • the slurry is deposited in the cavity of a female mold on a 0.5 micron Teflon membrane which rests on a screen in the female mold.
  • the area of the female mold is about 2" by 5" and the slurry is deposited to a depth of about 0.25 inch.
  • a countermold is inserted into the cavity containing the slurry. The weight of the countermold compresses the slurry against the Teflon mesh and the female mold to squeeze out some or most of the methanol. The compression of the slurry forces the methanol through the mesh, screen, and a liquid outlet in the female mold.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Filtering Materials (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Catalysts (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Porous Artificial Stone Or Porous Ceramic Products (AREA)
  • Powder Metallurgy (AREA)
PCT/US1999/019153 1998-08-24 1999-08-24 Porous structures and methods and apparatus for forming porous structures Ceased WO2000010685A1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP2000565998A JP2002523617A (ja) 1998-08-24 1999-08-24 多孔質構造体及び多孔質構造体を形成するための方法及び装置
AU58990/99A AU5899099A (en) 1998-08-24 1999-08-24 Porous structures and methods and apparatus for forming porous structures
EP99946615A EP1105201B1 (en) 1998-08-24 1999-08-24 Method for forming porous structures
DE69934802T DE69934802T2 (de) 1998-08-24 1999-08-24 Verfahren um poröse anorganische strukturen zu bilden
KR1020017002383A KR20010072950A (ko) 1998-08-24 1999-08-24 다공성 구조물과 그 제조방법 및 장치
US11/504,601 US20060273005A1 (en) 1998-08-24 2006-08-16 Porous structures and methods for forming porous structures

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US9768798P 1998-08-24 1998-08-24
US60/097,687 1998-08-24

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US11/504,601 Division US20060273005A1 (en) 1998-08-24 2006-08-16 Porous structures and methods for forming porous structures

Publications (1)

Publication Number Publication Date
WO2000010685A1 true WO2000010685A1 (en) 2000-03-02

Family

ID=22264652

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1999/019153 Ceased WO2000010685A1 (en) 1998-08-24 1999-08-24 Porous structures and methods and apparatus for forming porous structures

Country Status (7)

Country Link
US (1) US20060273005A1 (enExample)
EP (2) EP1105201B1 (enExample)
JP (1) JP2002523617A (enExample)
KR (1) KR20010072950A (enExample)
AU (1) AU5899099A (enExample)
DE (1) DE69934802T2 (enExample)
WO (1) WO2000010685A1 (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10359813A1 (de) * 2003-12-19 2005-07-21 Basf Ag Verfahren zur Bearbeitung metallischer Membranen oder Filtermedien

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KR101076135B1 (ko) * 2002-12-12 2011-10-21 엔테그리스, 아이엔씨. 다공성 소결 복합 재료
AU2003303439A1 (en) * 2002-12-20 2004-07-22 Applied Materials, Inc. Micromachined intergrated fluid delivery system
US20060043027A1 (en) * 2004-09-01 2006-03-02 Nguyen Ledu Q Automotive fluid filter with sintered pellet filter medium and associated method
MY162583A (en) * 2006-11-29 2017-06-30 Steri-Flow Filtration Systems (Aust)Pty Ltd An apparatus and method of producing porous membranes
US8278231B2 (en) 2008-11-24 2012-10-02 Exxonmobil Chemical Patents Inc. Heat stable formed ceramic, apparatus and method of using the same
US8450552B2 (en) * 2009-05-18 2013-05-28 Exxonmobil Chemical Patents Inc. Pyrolysis reactor materials and methods
US8512663B2 (en) * 2009-05-18 2013-08-20 Exxonmobile Chemical Patents Inc. Pyrolysis reactor materials and methods
CA2814074C (en) * 2010-10-15 2017-01-17 Celanese Acetate Llc Apparatuses, systems, and associated methods for forming porous masses for smoke filter
US20130108780A1 (en) * 2011-11-02 2013-05-02 Battelle Memorial Institute Method of making a thin film
DE102012005719A1 (de) * 2012-03-20 2013-09-26 Hydac Accessories Gmbh Prüfvorrichtung zum Ermitteln der Partikelbelastung von unter einem hohen Druck stehendem Wasserstoff
RU2493934C1 (ru) * 2012-08-13 2013-09-27 Закрытое акционерное общество "ЭКАТ" Способ получения жаростойкого высокопористого проницаемого сплава
US9802254B2 (en) * 2014-09-30 2017-10-31 The United States Of America, As Represented By The Secretary Of The Navy Zinc electrodes for batteries
US10008711B2 (en) 2012-11-28 2018-06-26 The United States Of America, As Represented By The Secretary Of The Navy Zinc electrodes for batteries
KR101595185B1 (ko) * 2014-09-01 2016-02-19 한국기계연구원 액체 여과 구조체
CN108878895B (zh) 2017-05-08 2021-01-05 清华大学 燃料电池电极及燃料电池
CN108872338B (zh) 2017-05-08 2021-08-03 清华大学 生物传感器微电极及生物传感器
CN109016778B (zh) 2017-06-09 2020-09-08 清华大学 多孔金属复合结构的制备方法
CN109030595B (zh) 2017-06-09 2023-09-26 清华大学 生物传感器电极及生物传感器
CN109019563B (zh) 2017-06-09 2021-02-26 清华大学 多孔金属复合结构
KR102483236B1 (ko) * 2017-11-09 2022-12-30 삼성디스플레이 주식회사 표시 장치 및 그 제조 방법
US11069889B2 (en) 2019-07-19 2021-07-20 The Government of the United Stales of America, as represented by the Secretare of the Navy Zinc electrode improvements
JP7650859B2 (ja) * 2019-07-19 2025-03-25 インテグリス・インコーポレーテッド 多孔質焼結膜及び多孔質焼結膜を調製する方法

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JPS63288973A (ja) * 1987-05-22 1988-11-25 Ishikawajima Harima Heavy Ind Co Ltd 繊維強化セラミックスの製造方法
JPS6458305A (en) * 1987-08-28 1989-03-06 Ibiden Co Ltd Production of thin-film ceramic filter
JPH03162503A (ja) * 1989-11-21 1991-07-12 Ishikawajima Harima Heavy Ind Co Ltd 泥しょう鋳込成形装置
JPH0538098A (ja) * 1991-08-01 1993-02-12 Sumitomo Electric Ind Ltd カーボン集電体
JPH0564804A (ja) * 1991-09-06 1993-03-19 Sintokogio Ltd 焼結用原形体の成形方法
JPH06327920A (ja) * 1993-05-26 1994-11-29 Totoku Electric Co Ltd 焼結フィルター及びその製造方法
EP0764456A2 (en) * 1995-09-22 1997-03-26 Morton International, Inc. Unitary drop-in airbag filters
US5660863A (en) * 1993-03-08 1997-08-26 Agency Of Industrial Science & Technology, Ministry Of International Trade & Industry Apparatus for production of ceramics reinforced with three-dimensional fibers

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US2239800A (en) * 1938-02-04 1941-04-29 Vogt Production of sintered articles
WO1993006912A1 (fr) * 1991-10-07 1993-04-15 Nippon Seisen Co., Ltd. Milieu filtrant stratifie, procede de production de ce milieu et filtre l'utilisant
JPH0825181B2 (ja) * 1993-05-11 1996-03-13 工業技術院長 ３次元繊維強化セラミックス基複合材料の製造法
GB9505038D0 (en) * 1994-10-01 1995-05-03 Imas Uk Ltd A filter, apparatus including the filter and a method of use of the apparatus
US5746793A (en) * 1996-01-16 1998-05-05 Morton International, Inc. Reinforced ceramic air bag filters
ES2163371B1 (es) * 2000-03-01 2003-02-16 Bekaert Sa Nv Filtro, en especial para microfiltracion, y equipo que incorpora dichofiltro.

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Publication number Priority date Publication date Assignee Title
JPS63288973A (ja) * 1987-05-22 1988-11-25 Ishikawajima Harima Heavy Ind Co Ltd 繊維強化セラミックスの製造方法
JPS6458305A (en) * 1987-08-28 1989-03-06 Ibiden Co Ltd Production of thin-film ceramic filter
JPH03162503A (ja) * 1989-11-21 1991-07-12 Ishikawajima Harima Heavy Ind Co Ltd 泥しょう鋳込成形装置
JPH0538098A (ja) * 1991-08-01 1993-02-12 Sumitomo Electric Ind Ltd カーボン集電体
JPH0564804A (ja) * 1991-09-06 1993-03-19 Sintokogio Ltd 焼結用原形体の成形方法
US5660863A (en) * 1993-03-08 1997-08-26 Agency Of Industrial Science & Technology, Ministry Of International Trade & Industry Apparatus for production of ceramics reinforced with three-dimensional fibers
JPH06327920A (ja) * 1993-05-26 1994-11-29 Totoku Electric Co Ltd 焼結フィルター及びその製造方法
EP0764456A2 (en) * 1995-09-22 1997-03-26 Morton International, Inc. Unitary drop-in airbag filters

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PATENT ABSTRACTS OF JAPAN vol. 13, no. 255 13 June 1989 (1989-06-13) *
PATENT ABSTRACTS OF JAPAN vol. 15, no. 396 8 October 1991 (1991-10-08) *
PATENT ABSTRACTS OF JAPAN vol. 17, no. 334 24 June 1993 (1993-06-24) *
PATENT ABSTRACTS OF JAPAN vol. 17, no. 377 15 July 1993 (1993-07-15) *
PATENT ABSTRACTS OF JAPAN vol. 19, no. 502 31 March 1995 (1995-03-31) *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10359813A1 (de) * 2003-12-19 2005-07-21 Basf Ag Verfahren zur Bearbeitung metallischer Membranen oder Filtermedien
DE10359813B4 (de) * 2003-12-19 2006-05-11 Basf Ag Verfahren zur Bearbeitung poröser metallischer asymmetrischer Membranen oder Filtermedien

Also Published As

Publication number Publication date
US20060273005A1 (en) 2006-12-07
EP1785183A3 (en) 2007-08-15
EP1105201A1 (en) 2001-06-13
AU5899099A (en) 2000-03-14
EP1785183A2 (en) 2007-05-16
DE69934802D1 (de) 2007-02-22
DE69934802T2 (de) 2007-10-11
EP1105201B1 (en) 2007-01-10
KR20010072950A (ko) 2001-07-31
JP2002523617A (ja) 2002-07-30

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