PT98224A - Processo para a preparacao de uma camada de filtracao espessa, filtro e modulo de filtracao contendo essa camada - Google Patents
Processo para a preparacao de uma camada de filtracao espessa, filtro e modulo de filtracao contendo essa camada Download PDFInfo
- Publication number
- PT98224A PT98224A PT98224A PT9822491A PT98224A PT 98224 A PT98224 A PT 98224A PT 98224 A PT98224 A PT 98224A PT 9822491 A PT9822491 A PT 9822491A PT 98224 A PT98224 A PT 98224A
- Authority
- PT
- Portugal
- Prior art keywords
- filter
- fibers
- layer
- weight
- long
- Prior art date
Links
- 238000001914 filtration Methods 0.000 title claims 12
- 238000000034 method Methods 0.000 title claims 5
- 239000000203 mixture Substances 0.000 claims abstract 6
- 229920002994 synthetic fiber Polymers 0.000 claims abstract 6
- 229920003043 Cellulose fiber Polymers 0.000 claims abstract 5
- 235000019362 perlite Nutrition 0.000 claims abstract 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract 4
- 239000001913 cellulose Substances 0.000 claims abstract 2
- 239000000835 fiber Substances 0.000 claims 13
- 239000012209 synthetic fiber Substances 0.000 claims 5
- 239000010451 perlite Substances 0.000 claims 4
- 238000002360 preparation method Methods 0.000 claims 4
- 239000000919 ceramic Substances 0.000 claims 3
- 239000000706 filtrate Substances 0.000 claims 3
- 239000003795 chemical substances by application Substances 0.000 claims 2
- 239000002657 fibrous material Substances 0.000 claims 2
- 239000012530 fluid Substances 0.000 claims 2
- 239000003365 glass fiber Substances 0.000 claims 2
- 229920001410 Microfiber Polymers 0.000 claims 1
- 241001672648 Vieira Species 0.000 claims 1
- 229920002678 cellulose Polymers 0.000 claims 1
- 239000011521 glass Substances 0.000 claims 1
- 239000007788 liquid Substances 0.000 claims 1
- 239000003658 microfiber Substances 0.000 claims 1
- 229920000098 polyolefin Polymers 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 239000000463 material Substances 0.000 abstract 2
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/13—Supported filter elements
- B01D29/15—Supported filter elements arranged for inward flow filtration
- B01D29/21—Supported filter elements arranged for inward flow filtration with corrugated, folded or wound sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/13—Supported filter elements
- B01D29/23—Supported filter elements arranged for outward flow filtration
- B01D29/232—Supported filter elements arranged for outward flow filtration with corrugated, folded or wound sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
- B01D29/52—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in parallel connection
- B01D29/54—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in parallel connection arranged concentrically or coaxially
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
- B01D29/56—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection
- B01D29/58—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection arranged concentrically or coaxially
Claims (1)
- REIVINDICAÇÕES t* - Processo para a preparação de uma camada de filtração espessa para um filtro de camada espessa a partir duma mistura que compreende celulose em fibras compridas e fibras curtas e/ou fibras sintéticas compridas e curtas, assim como, de preferência, diatoraite e/ou perlite ou uma mistura de fibras de vidro ou de fibras cerâmicas compridas e curtas, caracterizado pelo facto de se preguear a camada de filtração tendo u» teor de água pelo menos igual a 5¾ e no máximo igual a 30%, a uma temperatura pelo menos igual a 20° G (temperatura ambiente) e, no máximo, igual a 150°C* 2* - Processo para a preparação de uma camada de filtração espessa a partir de uma mistura que, além de fibras de celulose, contém ainda fibras sintéticas, de acordo com a reivindicação 1, caracterizado pelo facto de se aquecer a camada de filtração até uma temperatura que ê inferior à temperatura de sintetização das fibras sintéticas durante a operação de pregueamento. 3» — Processo para a preparação de um filtro de camada filtrante espessa pregueada, caracterizado pelo facto de se empregarem fibras cerâmicas com um comprimento inferior a 6 milímetros* 4* - Procesao para a preparação de um filtro de camada filtrante espessa pregueada, caracterizado pelo facto de se empregarem microfibras de vidro com um comprimento inferior a 6 milímetros.*f$tíC**Hrf* 5* — Filtro de camada filtrante espessa com uma espessura pelo menos igual a 1 mm, caracterizado pelo facto de compreender uma camada de filtração pregueada e auto—suportada que contêm uma mistura de material de fibras compridas e de material de fibras curtas, em que as fibras consistem em fibras de celulose e/ou fibras sintéticas ou fibras cerâmicas ou fibras de vidro e em que a camada de filtração contêm de preferência diatomite e/ou perlite. 6* - Filtro de acordo com a reivindicação 5, caracterizado pelo facto de a camada de filtração conter pelo menos 20% era peso de fibras compridas com um comprimento compreendido entre 1 a 6 mm, em relação ao seu peso total. 7* - Filtro de acordo com a reivindicação 5, caracterizado pelo facto de a camada de filtração conter pelo menos 5% em peso de fibras compridas com ura comprimento compreendido entre cerca de 3 e 6 mm. 8* - Filtro de acordo com as reivindicaçães 5 ou 6, caracterizado pelo facto de a camada de filtração conter pelo menos 10% em peso de fibras compridas com um comprimento compreendido entre 1 e 3 mm. 9* - Filtro de acordo com qualquer das reivindicaçSes 5 a 8, caracterizado pelo facto de a camada de filtração possuir, em relação ao seu peso total, pelo menos 20% em peso das fibras curtas com um comprimento inferior a 1 nua. 10* - Filtro de acordo com a reivindicação 9, caracterizado pelo facto de a proporção de fibras curtas ser no máximo//fSigual a 50% em peso 11* - Filtro de acordo com qualquer das reivindicações 5 a 10, caracterizado pelo facto de a proporção de fibras compridas com um comprimento compreendido entre 1 e 6 mm ser no máximo igual a 50% em peso. 12* - Filtro de acordo com qualquer das reivindicações anteriores, caracterizado pelo facto de se moer as fibras de celulose até um valor compreendido entre 12 e 25° Schopper-Riegler (SR). 13* - Filtro de acordo com qualquer das reivindicações 5 a 12, caracterizado pelo facto de a proporção de diatoaite e/ou perlite ser maior do que 20% e menor do que 50% do peso da camada de filtração. 14* - Filtro de acordo com a reivindicação 13, caracterizado pelo facto de a citada proporção ser igual a cerca de 40% em peso. 15* - Filtro de acordo cora qualquer das reivindicações anteriores, caracterizado pelo facto de a camada de filtro conter fibras sintéticaB, de preferência, fibras de poliolefi-nas. 16* - Hódulo de filtração para filtração em andares, caracte— rizado pelo facto de compreender uma caixa com ligações para tubagens de fluído, na qual são previstos um ou mais elementos filtrantes montados em série na corrente do fluído, tendo uma superfície pregueada, caracterizado pelo facto de pelo menos um elemento filtrante possuir uma camada 20 de filtração que contêm uma mistura de fibras de celulose e/ou de fibras sintéticas compridas e curtas, assim como, de preferência, diatomite e/ou perlite. 17* - Módulo de filtração de acordo com a reivindicação 14, caracterizado pelo facto de os elementos de filtração serem cilindros, terem diâmetros diferentes e estarem montados concentricamente uns dentro dos outros. 18* - Módulo de filtração de acordo com a reivindicação 15, caracterizado pelo facto de se conceber o elemento de filtração interior de modo a ser ligado a uma tubagem de líquido não filtrado, e a tubagem de saída do filtrado ser ligada por fora do referido elemento de filtração exterior. Lisboa, 04 de Julho de 1991 /o Agente Oficial da Propp iedade IndustrialMARIA SILVINA VIEIRA PEREIRA FERREIRA Adjunto Amer go da Silva Carvalho Agente Oficial de Propriedade Industrial Rua Marquês du Fronteira, N.° 127 - 2.® 1000 LISBOA Tels,3877373-3877453
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH223990 | 1990-07-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
PT98224A true PT98224A (pt) | 1993-08-31 |
Family
ID=4229107
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PT98224A PT98224A (pt) | 1990-07-05 | 1991-07-04 | Processo para a preparacao de uma camada de filtracao espessa, filtro e modulo de filtracao contendo essa camada |
Country Status (8)
Country | Link |
---|---|
US (1) | US5232595A (pt) |
EP (1) | EP0465424B1 (pt) |
JP (1) | JPH04227009A (pt) |
AT (1) | ATE114992T1 (pt) |
DE (1) | DE59103760D1 (pt) |
ES (1) | ES2064976T3 (pt) |
PT (1) | PT98224A (pt) |
ZA (1) | ZA915185B (pt) |
Families Citing this family (40)
Publication number | Priority date | Publication date | Assignee | Title |
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US5776353A (en) * | 1996-02-16 | 1998-07-07 | Advanced Minerals Corporation | Advanced composite filtration media |
US5827430A (en) * | 1995-10-24 | 1998-10-27 | Perry Equipment Corporation | Coreless and spirally wound non-woven filter element |
IT1287629B1 (it) * | 1996-03-06 | 1998-08-06 | Universal Filter Spa | Processo per la fabbricazione di un mezzo filtrante, mezzo cosi' fabbricato, e filtri impieganti detto mezzo |
US5824232A (en) * | 1996-04-15 | 1998-10-20 | Filtration Technologies Corporation | Corrugated filter sheet configured into a cylindrical filter media having near circular concentric channels |
US5766455A (en) * | 1996-04-30 | 1998-06-16 | Zentox Corporation | Fibrous matte support for the photopromoted catalyzed degradation of compounds in a fluid stream |
US6290848B1 (en) * | 1997-04-16 | 2001-09-18 | Pur Water Purification Products, Inc. | Filter cartridge for gravity-fed water treatment devices |
JPH1133342A (ja) * | 1997-07-17 | 1999-02-09 | Hitachi Chem Co Ltd | 環境汚染物質除去シート又はボード |
US6939466B2 (en) * | 1998-08-17 | 2005-09-06 | Cuno Incorporated | Graded particle-size retention filter medium for fluid filtration unit with improved edge seal |
US6712966B1 (en) | 1999-02-04 | 2004-03-30 | Cuno Incorporated | Graded particle-size retention filter medium for cell-type filter unit |
US20040118766A1 (en) * | 2000-02-03 | 2004-06-24 | Pulek John L. | Graded particle-size retention filter medium for cell-type filter unit |
US6780327B1 (en) * | 1999-02-25 | 2004-08-24 | Pall Corporation | Positively charged membrane |
US6365214B1 (en) * | 1999-07-23 | 2002-04-02 | David E. Kirk | Cooking oil sponge |
US6387144B1 (en) * | 2000-03-16 | 2002-05-14 | Nelson Industries, Inc. | Enhanced performance fibrous filter media and extended life fluid filter assembly |
US6569330B1 (en) * | 2000-07-19 | 2003-05-27 | Velcon Filters, Inc. | Filter coalescer cartridge |
WO2002040133A1 (de) * | 2000-11-16 | 2002-05-23 | Filterwerk Mann+Hummel Gmbh | Filterelement |
WO2003097213A1 (en) * | 2002-05-13 | 2003-11-27 | Industrial Ceramic Solutions, Inc | Ceramic fiber-based filter and method |
US7125434B2 (en) * | 2002-12-19 | 2006-10-24 | Millipore Corporation | Deep gradient-density filter device |
US7125490B2 (en) * | 2003-05-29 | 2006-10-24 | Porex Corporation | Porous filter |
BRPI0518130A (pt) * | 2004-10-15 | 2008-10-28 | 3M Innovative Properties Co | módulos de filtro pregueado, método de produção de um meio de filtro de profundidade compósito, e, meio de filtro de profundidade compósito pregueado |
WO2008028734A1 (en) * | 2006-09-07 | 2008-03-13 | Unilever N.V. | Filter |
EP1900411A1 (en) * | 2006-09-07 | 2008-03-19 | Unilever N.V. | Filter |
EP2111276A2 (en) * | 2007-02-14 | 2009-10-28 | Pall Corporation | Fluid processing system |
EP2111275B1 (en) * | 2007-02-14 | 2011-09-21 | Pall Corporation | A module for processing a fluid and a process for manufacture of same |
US8245853B2 (en) * | 2007-02-14 | 2012-08-21 | Pall Corporation | Filter module |
US20090020472A1 (en) * | 2007-07-19 | 2009-01-22 | 3M Innovative Properties Company | Pleated filter |
WO2009067411A1 (en) * | 2007-11-20 | 2009-05-28 | Filtration Technology Corporation | Filter with exterior and interior media components and method of filtering |
JP2009220092A (ja) * | 2008-02-22 | 2009-10-01 | Anlet Co Ltd | フィルタ装置 |
DE102008037678A1 (de) | 2008-08-14 | 2010-02-25 | Sartorius Stedim Biotech Gmbh | Tiefenfilterschicht mit anorganischem Schichtdoppelhydroxid |
KR20120025112A (ko) * | 2010-09-07 | 2012-03-15 | 웅진코웨이주식회사 | 필터카트리지 |
US9889478B2 (en) | 2012-11-12 | 2018-02-13 | Whirlpool Corporation | Consumable descaling cartridges for a refrigerator appliance |
US9320993B2 (en) | 2012-11-12 | 2016-04-26 | Whirlpool Corporation | Filter housing for small media |
US9327216B2 (en) | 2012-11-12 | 2016-05-03 | Whirlpool Corporation | Customizable multi-stage water treatment system |
US9314716B2 (en) | 2012-11-12 | 2016-04-19 | Whirlpool Corporation | Customizable multi-stage water treatment assembly |
US9072997B2 (en) | 2012-11-30 | 2015-07-07 | Corning Incorporated | Substrate with sinuous web and particulate filter incorporating the same |
US9782702B2 (en) | 2014-05-22 | 2017-10-10 | Pall Corporation | Filter assemblies, filter elements, and methods for filtering liquids |
US9839866B2 (en) | 2014-05-30 | 2017-12-12 | Pall Corporation | Filter elements and methods for filtering fluids |
JP6899777B2 (ja) * | 2015-11-02 | 2021-07-07 | 日本製紙株式会社 | セルロースナノファイバー分散液のろ過方法および製造方法 |
CN109415515A (zh) * | 2016-07-11 | 2019-03-01 | 日本制纸株式会社 | 母料的制造方法 |
DE102016013166A1 (de) * | 2016-11-04 | 2018-05-09 | Hydac Filter Systems Gmbh | Filterelement |
DE102017119926A1 (de) * | 2017-08-30 | 2019-02-28 | Hengst Se | Koaleszerstufe eines Filtereinsatzes eines Kraftstofffilters, Filtereinsatz und Kraftstofffilter |
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US3115459A (en) * | 1961-05-25 | 1963-12-24 | Ametek Inc | Filter |
US3591010A (en) * | 1968-06-10 | 1971-07-06 | Pall Corp | Filter having a microporous layer attached thereto |
US4089783A (en) * | 1974-02-08 | 1978-05-16 | Crosland Filters Limited | Filter |
US4032457A (en) * | 1975-06-04 | 1977-06-28 | Fibredyne, Inc. | Plural stage filter cartridge wherein at least one stage comprises pulverized particulate material |
GR60807B (en) * | 1976-04-05 | 1978-08-30 | Process Scient Innovation Ltd | Improvements in or relating to filters for liquids or gases |
US4274914A (en) * | 1978-08-28 | 1981-06-23 | Celanese Corporation | Filter material |
DE3271426D1 (en) * | 1982-10-22 | 1986-07-03 | Gessner & Co Gmbh | Multilayer filter material, process for making it and its use |
DE3329385A1 (de) * | 1983-08-13 | 1985-02-28 | Seitz-Filter-Werke Theo & Geo Seitz GmbH und Co, 6550 Bad Kreuznach | Asbestfreie filterschicht |
US4704207A (en) * | 1985-12-02 | 1987-11-03 | Cuno Incorporated | Filter cartridge including external cell separators |
DE3805299A1 (de) * | 1987-02-20 | 1988-11-03 | Sartorius Gmbh | Integralfilter zur abscheidung von fluidinhaltsstoffen und gehaeuse dafuer |
US5084178A (en) * | 1988-06-15 | 1992-01-28 | Pall Corporation | Corrugated filter arrangement with support layer and flow channels |
US4973382A (en) * | 1988-07-26 | 1990-11-27 | International Paper Company | Filtration fabric produced by wet laid process |
-
1991
- 1991-06-26 DE DE59103760T patent/DE59103760D1/de not_active Revoked
- 1991-06-26 AT AT91810501T patent/ATE114992T1/de not_active IP Right Cessation
- 1991-06-26 EP EP91810501A patent/EP0465424B1/de not_active Revoked
- 1991-06-26 ES ES91810501T patent/ES2064976T3/es not_active Expired - Lifetime
- 1991-06-28 US US07/723,215 patent/US5232595A/en not_active Expired - Fee Related
- 1991-07-04 PT PT98224A patent/PT98224A/pt not_active Application Discontinuation
- 1991-07-04 ZA ZA915185A patent/ZA915185B/xx unknown
- 1991-07-05 JP JP3165893A patent/JPH04227009A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
ES2064976T3 (es) | 1995-02-01 |
EP0465424A1 (de) | 1992-01-08 |
DE59103760D1 (de) | 1995-01-19 |
US5232595A (en) | 1993-08-03 |
ZA915185B (en) | 1992-04-29 |
JPH04227009A (ja) | 1992-08-17 |
ATE114992T1 (de) | 1994-12-15 |
EP0465424B1 (de) | 1994-12-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
BB1A | Laying open of patent application |
Effective date: 19930331 |
|
FC3A | Refusal |
Effective date: 19980930 |