EP0892665A1 - Procede de fabrication d'un filtre adsorbant - Google Patents

Procede de fabrication d'un filtre adsorbant

Info

Publication number
EP0892665A1
EP0892665A1 EP97918048A EP97918048A EP0892665A1 EP 0892665 A1 EP0892665 A1 EP 0892665A1 EP 97918048 A EP97918048 A EP 97918048A EP 97918048 A EP97918048 A EP 97918048A EP 0892665 A1 EP0892665 A1 EP 0892665A1
Authority
EP
European Patent Office
Prior art keywords
adsorber
filter body
needles
particles
holes
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.)
Withdrawn
Application number
EP97918048A
Other languages
German (de)
English (en)
Inventor
Thorsten Keibel
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.)
Helsa Werke Helmut Sandler GmbH and Co KG
Original Assignee
Helsa Werke Helmut Sandler GmbH and Co KG
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
Priority claimed from DE1996112592 external-priority patent/DE19612592C2/de
Application filed by Helsa Werke Helmut Sandler GmbH and Co KG filed Critical Helsa Werke Helmut Sandler GmbH and Co KG
Publication of EP0892665A1 publication Critical patent/EP0892665A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
    • B01J20/28016—Particle form
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
    • B01J20/28042—Shaped bodies; Monolithic structures
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/48—Processes of making filters

Definitions

  • the invention relates to a method for producing a filter body from adsorber particles which are firmly connected to one another by an adhesive and which is formed with through-channels.
  • filter bodies made from adsorber particles have been produced in an extrusion process, as described, for example, in EP 0 492 081 A1.
  • the adsorber particles must be mixed with a plasticizer.
  • This known method requires an extrusion device, which is expensive to purchase. Such an extrusion device is therefore not suitable for the production of relatively small quantities of filter bodies made of adsorber particles with through-channels, because their purchase price would influence the unit price of the said filter bodies too strongly.
  • the invention has for its object to provide a method of the type mentioned, with which adsorber filter bodies can be produced in a simple manner very inexpensively with through channels.
  • This object is achieved in that a bottom element provided with through holes is used, through the through holes of which needles are inserted, which close off the through holes, the needles projecting into a housing space delimited by the bottom element, in that the adsorber particles are subsequently filled into the housing space, the needles with end portions protruding from the adsorber particle bed, that the adsorber particles are then solidified by the adhesive to the filter body, and that the needles are then pulled out of the filter body.
  • the through holes in the base element have a clear cross section which is closely tolerated to the cross section of the needles.
  • Said cross sections can be round or polygonal. Round cross sections have the advantage of simple and inexpensive implementation.
  • the needles can also be designed with a variable cross section along their longitudinal extent. It has proven to be advantageous to coat the needles superficially, for example with Teflon or the like. to be coated in order to prevent or at least reduce the adherence of adsorber particles or adhesive in such a way that problem-free removal of the needles is possible.
  • Adsorber particle bed a circumferential side wall can be used, which stands up from the bottom element.
  • This peripheral side wall can be integrally connected to the base element, but it is also possible that the peripheral side wall forms a part separate from the base element.
  • the base element and the circumferential side wall can form a container, which is used repeatedly to carry out the method according to the invention however, it is also possible that the peripheral side wall is used only once, ie remains firmly connected to the filter body after carrying out the method according to the invention and thus forms a housing jacket of the adsorber filter body.
  • the adsorber filter body produced according to the invention not only on its outer surface with a housing part, but also on its two end faces facing away from one another, it is also possible to use the front
  • the needles are pulled out of the filter body and out of the base element, so that the finished adsorber filter body with through-channels is provided on all sides with a housing.
  • a device can be used in which the needles protrude from a needle plate, the distribution of the needles on the needle plate corresponding to the distribution of the through holes in the base element of the container.
  • a needle plate is simple and inexpensive feasible and easy to use, because the needles can remain in the through hole in the base element at any time.
  • the housing space can be filled with adsorber particles according to the desired thickness of the filter body. This means that any given filter body thickness can be realized with a certain predetermined height dimension of the housing space above the floor element, the maximum filter body thickness corresponding to the predetermined height of the housing space.
  • Powdery and / or granular and / or spherical adsorber particles can be used to carry out the process according to the invention for producing an adsorber filter body. Their size can preferably be up to approximately 1 mm.
  • the adsorber particles can be activated carbon particles, for example. Powdered or granular activated carbon particles are comparatively inexpensive.
  • the adsorber particle bed is preferably standardized on the side remote from the base element to form a flat filter body surface.
  • This standardization can be accomplished, for example, by a shaking process.
  • Another possibility of standardization consists, for example, of temporarily arranging on the adsorber particle bed a plate element corresponding to the through holes and having the same through hole through which the needles extend or into which the needles at least extend, and using this plate element to slightly compress the adsorber particle bed to achieve a corresponding standardization.
  • the adsorber particles can be wetted with the adhesive before being introduced into the container. It is also possible to introduce adhesive particles into the container together with the adsorber particles, which melt at an elevated temperature and crosslink the adsorber particles to form the filter body.
  • the adhesive is used in such a quantity that the adsorber properties of the adsorber particles are not noticeably impaired by the adhesive.
  • the filter body is preferably solidified in the container at elevated temperature in order to increase the reaction rate of the adhesive or adhesive system and thus to reduce the production times for the manufacture of adsorber filter bodies according to the invention accordingly.
  • the method according to the invention is not only suitable for the production of small adsorber filter bodies
  • Quantity or production series but also for the production of larger quantities if, for example, a carousel principle is used.
  • Fig. 1 is a sectional view of a device for producing an adsorber filter body
  • Fig. 2 is a sectional view of an adsorber filter body, as it is produced with the device according to Fig.l
  • Fig.l is a sectional view of an adsorber filter body
  • Fig. 3 shows a portion of a view of the filter body of FIG. 2 in the direction of arrow III.
  • Fig. 1 shows a needle plate 10, the needles 12 are upwards.
  • the needles 12 extend through through holes 14 formed in a bottom member 16.
  • the through holes 14 have a clear cross section which is adapted to the cross section of the needles 12 such that the needles 12 seal the through holes 14.
  • a circumferential side wall 18 is arranged on the base element 16.
  • the side wall 18 forms with the base element 16 a container 20 which is open at the top and which is filled with adsorber particles 22 up to a certain height.
  • the needle plate 10 with the needles 12 is positioned with respect to the base element 16 or the container 20 such that the needles 12 protrude from the adsorber particle bed 26 with their end section 24 removed from the needle plate 10.
  • the adsorber particles 22 are wetted with an adhesive, or the adsorber particles 22 are introduced into the container 20 together with adhesive particles.
  • the adhesive serves to cross-link the adsorber particles to form the filter body 28.
  • the needle plate 10 is withdrawn with the needles 12 in the direction of arrow 30 from the filter body 28, after which the Filter bodies 28 is removed from the bottom element 16.
  • 2 shows an adsorber filter body 28 produced in this way with its spaced-apart and mutually parallel through channels 32.
  • the side wall 18 can, for example, also be formed from a textile material that is glued to the filter body 28, but it can also be an integral part of the container 20 (see FIG. 1).
  • Fig. 3 shows sections of a front view of the adsorber filter body 28 with spaced apart and evenly distributed through channels 32 which have a circular clear cross section.
  • the through channels 32 can, however, also be polygonal. Since needles 12 with a round cross-section are easiest to produce, filter bodies 28 with through channels 32 with a circular, clear cross-section can be implemented at relatively low cost.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Analytical Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Filtering Materials (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Separation Of Gases By Adsorption (AREA)

Abstract

L'invention concerne un procédé permettant de fabriquer un filtre adsorbant (28), qui est constitué de particules adsorbantes (22) solidement fixées les unes aux autres par un adhésif et qui comporte des canaux traversants (32). Le filtre comprend un fond (16) qui comporte des trous traversants (14) dans lesquels on insère des aiguilles (12), de façon à fermer lesdits trous (14). Les aiguilles (12) font saillie dans un compartiment de boîtier délimité par l'élément base (16), que l'on remplit avec les particules adsorbantes (22). Les extrémités (24) des aiguilles (12) dépassent du lit de particules (26). Les particules adsorbantes (22) ou le lit de particules (26) sont consolidés avec l'adhésif pour former le filtre (28). Puis on retire les aiguilles du filtre consolidé (28), ce qui permet d'obtenir un filtre (28) avec des trous traversants correspondants (14).
EP97918048A 1996-03-29 1997-03-21 Procede de fabrication d'un filtre adsorbant Withdrawn EP0892665A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE1996112592 DE19612592C2 (de) 1996-03-29 1996-03-29 Verfahren zur Herstellung eines Adsorber-Filterkörpers
DE19612592 1996-03-29
PCT/DE1997/000589 WO1997036666A1 (fr) 1996-03-29 1997-03-21 Procede de fabrication d'un filtre adsorbant

Publications (1)

Publication Number Publication Date
EP0892665A1 true EP0892665A1 (fr) 1999-01-27

Family

ID=7789887

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97918048A Withdrawn EP0892665A1 (fr) 1996-03-29 1997-03-21 Procede de fabrication d'un filtre adsorbant

Country Status (5)

Country Link
US (1) US6004495A (fr)
EP (1) EP0892665A1 (fr)
AU (1) AU2633197A (fr)
DE (1) DE19654949C2 (fr)
WO (1) WO1997036666A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19832509A1 (de) * 1998-07-20 2000-01-27 Behr Gmbh & Co Filter, insbesondere für eine Heizungs- oder Klimaanlage eines Kraftfahrzeuges
EP0992272A1 (fr) * 1998-10-08 2000-04-12 Corning Incorporated Filtre poreux en forme d'un nid d'abeilles formé dans une presse
RU2165784C1 (ru) * 1999-11-29 2001-04-27 Общество с ограниченной ответственностью "Рютар" Способ получения сорбционного фильтрующего материала
DE10117435B4 (de) * 2001-04-03 2006-01-12 Msa Auer Gmbh Verfahren zur Herstellung eines Filterkörpers
TWI616352B (zh) 2012-03-20 2018-03-01 碧然德有限公司 用於製造液體處理系統之卡匣的方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4061807A (en) * 1976-02-09 1977-12-06 Shaler Amos J Adsorbent body and method for making same
US4665050A (en) * 1984-08-13 1987-05-12 Pall Corporation Self-supporting structures containing immobilized inorganic sorbent particles and method for forming same
DE4034798C2 (de) * 1990-11-02 1996-07-11 Sandler Helmut Helsa Werke Verfahren zur Herstellung eines Adsorptions-Flächenfilters
US5256360A (en) * 1992-03-25 1993-10-26 Panasonic Technologies, Inc. Method of manufacturing a precision micro-filter
US5332426A (en) * 1992-07-29 1994-07-26 Minnesota Mining And Manufacturing Company Agglomerated activated carbon air filter
US5510063A (en) * 1994-04-15 1996-04-23 Corning Incorporated Method of making activated carbon honeycombs having varying adsorption capacities
US5593626A (en) * 1994-04-18 1997-01-14 Yagishita; Aisaburo Method of fabricating molded filter element
DE4442713C2 (de) * 1994-12-01 1999-12-23 Freudenberg Carl Fa Adsorptions-Luftfilter und Verfahren zu dessen Herstellung
TW377313B (en) * 1995-02-27 1999-12-21 Corning Inc The method of making extruded structures

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9736666A1 *

Also Published As

Publication number Publication date
DE19654949C2 (de) 2003-02-27
DE19654949A1 (de) 1998-03-05
WO1997036666A1 (fr) 1997-10-09
US6004495A (en) 1999-12-21
AU2633197A (en) 1997-10-22

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