IT1251405B - Procedimento per pulire un filtro - Google Patents

Procedimento per pulire un filtro

Info

Publication number
IT1251405B
IT1251405B ITMI912384A ITMI912384A IT1251405B IT 1251405 B IT1251405 B IT 1251405B IT MI912384 A ITMI912384 A IT MI912384A IT MI912384 A ITMI912384 A IT MI912384A IT 1251405 B IT1251405 B IT 1251405B
Authority
IT
Italy
Prior art keywords
metallic catalyst
filter
sintered product
clean
procedure
Prior art date
Application number
ITMI912384A
Other languages
English (en)
Inventor
Esko Makiniemi
Eeva-Liisa Mustonen
Arto Sikander
Original Assignee
Kemira Oy
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 Kemira Oy filed Critical Kemira Oy
Publication of ITMI912384A0 publication Critical patent/ITMI912384A0/it
Publication of ITMI912384A1 publication Critical patent/ITMI912384A1/it
Application granted granted Critical
Publication of IT1251405B publication Critical patent/IT1251405B/it

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
    • B01D65/02—Membrane cleaning or sterilisation ; Membrane regeneration
    • 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
    • B01D29/31—Self-supporting filtering elements
    • B01D29/35—Self-supporting filtering elements arranged for outward flow filtration
    • 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
    • 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
    • B01D29/62—Regenerating the filter material in the filter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D41/00—Regeneration of the filtering material or filter elements outside the filter for liquid or gaseous fluids
    • B01D41/04—Regeneration of the filtering material or filter elements outside the filter for liquid or gaseous fluids of rigid self-supporting filtering material
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B15/00—Peroxides; Peroxyhydrates; Peroxyacids or salts thereof; Superoxides; Ozonides
    • C01B15/01—Hydrogen peroxide
    • C01B15/022—Preparation from organic compounds
    • C01B15/023—Preparation from organic compounds by the alkyl-anthraquinone process
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/04—Supports for the filtering elements
    • B01D2201/043—Filter tubes connected to plates
    • B01D2201/0446—Filter tubes connected to plates suspended from plates at the upper side of the filter elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/08—Regeneration of the filter
    • B01D2201/085—Regeneration of the filter using another chemical than the liquid to be filtered
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2321/00—Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
    • B01D2321/08—Use of hot water or water vapor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2321/00—Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
    • B01D2321/16—Use of chemical agents
    • B01D2321/162—Use of acids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2321/00—Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
    • B01D2321/16—Use of chemical agents
    • B01D2321/164—Use of bases

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Filtering Materials (AREA)
  • Catalysts (AREA)
  • Powder Metallurgy (AREA)
  • Cleaning By Liquid Or Steam (AREA)

Abstract

La presente invenzione si riferisce a un procedimento per pulire un sinterizzato usato per filtrare una sospensione di catalizzatore metallico. Come insegnato dall'invenzione, il sinterizzato è trattato con una soluzione acquosa di acqua ossigenata per rimuovere il catalizzatore metallico, lasciato nei pori del sinterizzato, con l'aiuto del gas prodotto dalla decomposizione dell'acqua ossigenata, causata dal catalizzatore metallico, finché la formazione di gas termina, indicando che nel sinterizzato sono rimaste quantità non significative di catalizzatore metallico.
ITMI912384A 1990-09-10 1991-09-10 Procedimento per pulire un filtro IT1251405B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI904465A FI86380C (fi) 1990-09-10 1990-09-10 Foerfarande foer rening av filter.

Publications (3)

Publication Number Publication Date
ITMI912384A0 ITMI912384A0 (it) 1991-09-10
ITMI912384A1 ITMI912384A1 (it) 1993-03-10
IT1251405B true IT1251405B (it) 1995-05-09

Family

ID=8531044

Family Applications (1)

Application Number Title Priority Date Filing Date
ITMI912384A IT1251405B (it) 1990-09-10 1991-09-10 Procedimento per pulire un filtro

Country Status (12)

Country Link
JP (1) JPH05309221A (it)
AU (1) AU630827B2 (it)
BE (1) BE1004406A3 (it)
BR (1) BR9103882A (it)
CA (1) CA2050991A1 (it)
DE (1) DE4129865A1 (it)
ES (1) ES2038540B1 (it)
FI (1) FI86380C (it)
GB (1) GB2248559B (it)
IT (1) IT1251405B (it)
NZ (1) NZ239721A (it)
SE (2) SE9102558L (it)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI86380C (fi) * 1990-09-10 1992-08-25 Kemira Oy Foerfarande foer rening av filter.
JPH0747101B2 (ja) * 1991-08-15 1995-05-24 丸善石油化学株式会社 目詰まりしたフィルターの再生方法
DE4418931C2 (de) * 1994-05-31 1997-06-19 Degussa Verfahren zur Abtrennung katalysatorfreier Arbeitslösung aus dem Hydrierkreislauf des Anthrachinonverfahrens zur Herstellung von Wasserstoffperoxid
FR2741280B1 (fr) * 1995-11-22 1997-12-19 Omnium Traitement Valorisa Procede de nettoyage d'une installation de filtration du type a membranes immergees
FR2751957A1 (fr) * 1996-08-01 1998-02-06 Pechiney Aluminium Procede non polluant de regeneration de pieces en ceramique utilisees en fonderie de l'aluminium
JP4103151B2 (ja) * 1997-03-19 2008-06-18 栗田工業株式会社 プレコート濾過装置の性能回復方法
US6949219B1 (en) * 2002-12-13 2005-09-27 Calgon Carbon Corporation Method for disinfection of activated carbon through contact with peroxide containing materials

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2608899C3 (de) * 1976-03-04 1982-12-30 Müller, Wolf-Rüdiger, Dipl.-Ing., 7000 Stuttgart Verfahren zur Verbesserung des Rückspülvorganges bei Filtern aus körnigen Materialien durch den Einsatz von Wasserstoffperoxid (H↓2↓O↓2↓)
DE2623917A1 (de) * 1976-05-28 1977-12-15 Edel Heinz H Verfahren zur reinigung gebrauchter dialysatoren
JPS55129107A (en) * 1979-03-28 1980-10-06 Nitto Electric Ind Co Ltd Washing method of selective permeable membrane
US4493756A (en) * 1983-06-21 1985-01-15 Pall Corporation Process for cleaning metal filters
US4740308A (en) * 1984-04-26 1988-04-26 Champion International Corporation Membrane cleaning process
GB8415887D0 (en) * 1984-06-21 1984-07-25 Atomic Energy Authority Uk Membrane cleaning
JPS6393310A (ja) * 1986-10-08 1988-04-23 Nippon Atom Ind Group Co Ltd 再生機能を備えた油水分離装置
FI86380C (fi) * 1990-09-10 1992-08-25 Kemira Oy Foerfarande foer rening av filter.

Also Published As

Publication number Publication date
ITMI912384A0 (it) 1991-09-10
SE9102558L (sv) 1992-03-11
FI86380C (fi) 1992-08-25
AU630827B2 (en) 1992-11-05
CA2050991A1 (en) 1992-03-11
AU8368791A (en) 1992-03-12
SE506718C2 (sv) 1998-02-02
FI904465L (fi) 1992-03-11
GB2248559B (en) 1994-02-23
ES2038540B1 (es) 1994-02-16
BR9103882A (pt) 1992-05-26
GB2248559A8 (en)
GB9119133D0 (en) 1991-10-23
GB2248559A (en) 1992-04-15
JPH05309221A (ja) 1993-11-22
ES2038540A1 (es) 1993-07-16
SE9102558D0 (sv) 1991-09-06
DE4129865A1 (de) 1992-04-16
NZ239721A (en) 1993-04-28
FI904465A0 (fi) 1990-09-10
FI86380B (fi) 1992-05-15
ITMI912384A1 (it) 1993-03-10
BE1004406A3 (fr) 1992-11-17

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Legal Events

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0001 Granted