DK340587D0 - REGISTRATION OF DISSOLUTION - Google Patents

REGISTRATION OF DISSOLUTION

Info

Publication number
DK340587D0
DK340587D0 DK340587A DK340587A DK340587D0 DK 340587 D0 DK340587 D0 DK 340587D0 DK 340587 A DK340587 A DK 340587A DK 340587 A DK340587 A DK 340587A DK 340587 D0 DK340587 D0 DK 340587D0
Authority
DK
Denmark
Prior art keywords
sodium hydroxide
hydroxide solution
kieselguhr
concentration
reaction temperature
Prior art date
Application number
DK340587A
Other languages
Danish (da)
Other versions
DK169402B1 (en
DK340587A (en
Inventor
Gert Sommer
Original Assignee
Henninger Brau Ag
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 Henninger Brau Ag filed Critical Henninger Brau Ag
Publication of DK340587D0 publication Critical patent/DK340587D0/en
Publication of DK340587A publication Critical patent/DK340587A/en
Application granted granted Critical
Publication of DK169402B1 publication Critical patent/DK169402B1/en

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
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
    • B01J20/14—Diatomaceous earth

Abstract

Spent kieselguhr used as a filter medium, preferably in breweries, is regenerated by adding 2 to 8% sodium hydroxide solution at a reaction temperature of about 60 to 90 DEG C and subjecting it to gentle stirring for a reaction time from 30 to 120 minutes. The concentration of the sodium hydroxide solution is then 4 to 5% and the reaction temperature 80 to 90 DEG C. The spent kieselguhr is discharged into a heatable vessel. After the end of the reaction time, the sodium hydroxide solution is removed and the kieselguhr is washed clear by means of a vacuum filter or pressurised belt filter in a plurality of extraction stages. For complete removal of the alkali, sulphuric acid or hydrochloric acid in a concentration of up to 0.1% is added to the washing water in the last extraction stage.
DK340587A 1986-07-11 1987-07-02 Regeneration of diatomaceous earth from the brewery industry DK169402B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3623484 1986-07-11
DE19863623484 DE3623484A1 (en) 1986-07-11 1986-07-11 REGENERATION OF KIESELGUR

Publications (3)

Publication Number Publication Date
DK340587D0 true DK340587D0 (en) 1987-07-02
DK340587A DK340587A (en) 1988-01-12
DK169402B1 DK169402B1 (en) 1994-10-24

Family

ID=6304997

Family Applications (1)

Application Number Title Priority Date Filing Date
DK340587A DK169402B1 (en) 1986-07-11 1987-07-02 Regeneration of diatomaceous earth from the brewery industry

Country Status (7)

Country Link
EP (1) EP0253233B1 (en)
JP (1) JP2618640B2 (en)
AT (1) ATE58489T1 (en)
DE (2) DE3623484A1 (en)
DK (1) DK169402B1 (en)
ES (1) ES2019341B3 (en)
GR (1) GR3001307T3 (en)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3834034A1 (en) * 1988-05-14 1989-11-23 Huels Chemische Werke Ag Process for the regeneration of arsenic-contaminated sorbents
AU5105893A (en) * 1992-10-08 1994-05-09 Sofima Ag Process and device for removing deposits from filter auxiliaries
DE59408670D1 (en) * 1993-02-12 1999-10-07 Filtrox Ag Process for cleaning a filter aid by adding enzymes
US5801051A (en) * 1994-02-10 1998-09-01 Filtrox-Werk Ag Method and apparatus for cleaning a filter aid
FR2733920B1 (en) * 1995-05-12 2001-06-08 Interbrew Sa METHOD FOR REGENERATING FILTRATION ADJUVANTS
FR2733922B1 (en) * 1995-05-12 1997-07-25 Interbrew Sa NOVEL FILTRATION ADJUVANTS, NOVEL FILTRATION MEDIA, FILTRATION METHOD USING THE SAME AND REGENERATION METHOD OF THE SAME
NL1000411C2 (en) * 1995-05-22 1996-11-25 Tno Method of removing organic matter from an aqueous stream.
WO1999016531A1 (en) * 1997-09-30 1999-04-08 Anheuser Busch Regeneration of filter media
FR2779665B1 (en) * 1998-06-16 2000-08-18 Kronenbourg Brasseries METHOD FOR REGENERATING AN EXHAUSTED INFUSORY EARTH AND DEVICE FOR CARRYING OUT THIS METHOD
DE19833405A1 (en) * 1998-07-24 2000-02-03 Stadler Johann Process for using diatomaceous earth for filtration
DE19944624A1 (en) * 1999-09-17 2001-03-22 I F B Inst Fuer Bioanalytik Um Process for working up used filter material produced from the filtration of rolling oils used for rolling aluminum foils and strips uses a scrubbing solution to produce rolling oil, kieselguhr, bleaching material and aluminum for reuse
DE10134861A1 (en) * 2001-07-18 2003-02-20 Seitz Schenk Filtersystems Gmb Liquid filtration process
DE10251792A1 (en) * 2002-11-07 2004-05-19 Industriebetriebe Heinrich Meyer-Werke Breloh Gmbh & Co. Kg Process for the regeneration of filter media, especially diatomaceous earth
ES2400378T3 (en) 2006-09-29 2013-04-09 Basf Se Procedure for the regeneration of a filter aid
PT2136913T (en) 2007-03-15 2018-07-12 Basf Se Method for regenerating a filter aid
US11325058B2 (en) * 2018-09-06 2022-05-10 The United States Of America, As Represented By The Secretary Of Agriculture Apparatus and method for rejuvenation and recovery of filtration media
KR20230148413A (en) 2021-02-24 2023-10-24 에프. 호프만-라 로슈 아게 Regeneration and multiple use of depth filters
CN113318520B (en) * 2021-05-11 2023-07-07 重庆艺锦陶瓷有限公司 Deoiling treatment device capable of enabling diatomite to be reused

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE344499C (en) * 1920-03-13 1921-11-25 Mueller Karl Process for the regeneration of used bleaching earth
US1545322A (en) * 1922-10-28 1925-07-07 Hebden Sugar Process Corp Regeneration of sugar-purifying reagents
DE469606C (en) * 1927-02-15 1928-12-18 Richard Koech Dr De-ironing of diatomite
DE605736C (en) * 1931-07-02 1934-11-17 Heinrich Gerstenberg Process for the complete revitalization of exhausted bleaching earth

Also Published As

Publication number Publication date
EP0253233A2 (en) 1988-01-20
DK169402B1 (en) 1994-10-24
EP0253233B1 (en) 1990-11-22
GR3001307T3 (en) 1992-08-31
DE3623484A1 (en) 1988-01-21
DK340587A (en) 1988-01-12
JP2618640B2 (en) 1997-06-11
JPS6365950A (en) 1988-03-24
ATE58489T1 (en) 1990-12-15
EP0253233A3 (en) 1988-08-24
ES2019341B3 (en) 1991-06-16
DE3766304D1 (en) 1991-01-03

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Legal Events

Date Code Title Description
B1 Patent granted (law 1993)
PBP Patent lapsed