IT1251405B - Procedimento per pulire un filtro - Google Patents
Procedimento per pulire un filtroInfo
- 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
Links
- 238000000034 method Methods 0.000 title abstract 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 abstract 4
- 239000003863 metallic catalyst Substances 0.000 abstract 4
- 239000007789 gas Substances 0.000 abstract 2
- 239000007864 aqueous solution Substances 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000004140 cleaning Methods 0.000 abstract 1
- 238000000354 decomposition reaction Methods 0.000 abstract 1
- 239000011148 porous material Substances 0.000 abstract 1
- 239000000725 suspension Substances 0.000 abstract 1
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.
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) | SE506718C2 (it) |
Families Citing this family (7)
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)
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. |
-
1990
- 1990-09-10 FI FI904465A patent/FI86380C/fi not_active IP Right Cessation
-
1991
- 1991-09-06 AU AU83687/91A patent/AU630827B2/en not_active Ceased
- 1991-09-06 SE SE9102558A patent/SE506718C2/sv not_active IP Right Cessation
- 1991-09-06 GB GB9119133A patent/GB2248559B/en not_active Expired - Fee Related
- 1991-09-06 SE SE9102558D patent/SE9102558L/xx not_active Application Discontinuation
- 1991-09-07 DE DE4129865A patent/DE4129865A1/de not_active Withdrawn
- 1991-09-09 CA CA002050991A patent/CA2050991A1/en not_active Abandoned
- 1991-09-09 NZ NZ239721A patent/NZ239721A/xx unknown
- 1991-09-09 BR BR919103882A patent/BR9103882A/pt unknown
- 1991-09-10 ES ES9102020A patent/ES2038540B1/es not_active Expired - Lifetime
- 1991-09-10 BE BE9100838A patent/BE1004406A3/fr not_active IP Right Cessation
- 1991-09-10 JP JP3230618A patent/JPH05309221A/ja not_active Withdrawn
- 1991-09-10 IT ITMI912384A patent/IT1251405B/it active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
FI86380C (fi) | 1992-08-25 |
FI904465A (fi) | 1992-03-11 |
BE1004406A3 (fr) | 1992-11-17 |
FI86380B (fi) | 1992-05-15 |
BR9103882A (pt) | 1992-05-26 |
ES2038540B1 (es) | 1994-02-16 |
GB2248559B (en) | 1994-02-23 |
FI904465A0 (fi) | 1990-09-10 |
JPH05309221A (ja) | 1993-11-22 |
SE9102558D0 (sv) | 1991-09-06 |
CA2050991A1 (en) | 1992-03-11 |
ES2038540A1 (es) | 1993-07-16 |
GB9119133D0 (en) | 1991-10-23 |
DE4129865A1 (de) | 1992-04-16 |
GB2248559A (en) | 1992-04-15 |
NZ239721A (en) | 1993-04-28 |
ITMI912384A1 (it) | 1993-03-10 |
AU630827B2 (en) | 1992-11-05 |
GB2248559A8 (en) | |
AU8368791A (en) | 1992-03-12 |
SE9102558L (sv) | 1992-03-11 |
SE506718C2 (sv) | 1998-02-02 |
ITMI912384A0 (it) | 1991-09-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
0001 | Granted |