ATA194394A - Verfahren zur entwässerung und waschung von rotschlamm - Google Patents

Verfahren zur entwässerung und waschung von rotschlamm

Info

Publication number
ATA194394A
ATA194394A AT0194394A AT194394A ATA194394A AT A194394 A ATA194394 A AT A194394A AT 0194394 A AT0194394 A AT 0194394A AT 194394 A AT194394 A AT 194394A AT A194394 A ATA194394 A AT A194394A
Authority
AT
Austria
Prior art keywords
draining
red sludge
washing red
washing
sludge
Prior art date
Application number
AT0194394A
Other languages
English (en)
Other versions
AT401654B (de
Inventor
Hubert Ing Riemer
Heinz Dipl Ing Dr Perchthaler
Nils Dipl Ing Oeberg
Paolo Murgia
Mario Noriega
Original Assignee
Andritz Patentverwaltung
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 Andritz Patentverwaltung filed Critical Andritz Patentverwaltung
Priority to AT0194394A priority Critical patent/AT401654B/de
Priority to AU38415/95A priority patent/AU692943B2/en
Priority to HU9702248A priority patent/HUT77063A/hu
Priority to PCT/EP1995/004021 priority patent/WO1996011737A1/de
Priority to US08/817,207 priority patent/US6033579A/en
Publication of ATA194394A publication Critical patent/ATA194394A/de
Application granted granted Critical
Publication of AT401654B publication Critical patent/AT401654B/de

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F7/00—Compounds of aluminium
    • C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
    • C01F7/04—Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom
    • C01F7/06—Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom by treating aluminous minerals or waste-like raw materials with alkali hydroxide, e.g. leaching of bauxite according to the Bayer process
    • C01F7/066—Treatment of the separated residue
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D11/00—Solvent extraction
    • B01D11/02—Solvent extraction of solids
    • B01D11/028—Flow sheets
    • B01D11/0284—Multistage extraction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/15—Filters with filtering elements which move during the filtering operation with rotary plane filtering surfaces
    • B01D33/21—Filters with filtering elements which move during the filtering operation with rotary plane filtering surfaces with hollow filtering discs transversely mounted on a hollow rotary shaft
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/58—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element
    • B01D33/60—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element for washing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/58—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element
    • B01D33/62—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element for drying
    • B01D33/66—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element for drying by gases or by heating
    • B01D33/663—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element for drying by gases or by heating by direct contact with a fluid
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F7/00—Compounds of aluminium
    • C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
    • C01F7/04—Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom
    • C01F7/06—Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom by treating aluminous minerals or waste-like raw materials with alkali hydroxide, e.g. leaching of bauxite according to the Bayer process
    • C01F7/0646—Separation of the insoluble residue, e.g. of red mud
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D11/00—Solvent extraction
    • B01D2011/002—Counter-current extraction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/30—Filter housing constructions
    • B01D35/31—Filter housing constructions including arrangements for environmental protection, e.g. pressure resisting features

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Analytical Chemistry (AREA)
  • Treatment Of Sludge (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
AT0194394A 1994-10-14 1994-10-14 Verfahren zur entwässerung und waschung von rotschlamm AT401654B (de)

Priority Applications (5)

Application Number Priority Date Filing Date Title
AT0194394A AT401654B (de) 1994-10-14 1994-10-14 Verfahren zur entwässerung und waschung von rotschlamm
AU38415/95A AU692943B2 (en) 1994-10-14 1995-10-12 Red mud dewatering and washing process
HU9702248A HUT77063A (hu) 1994-10-14 1995-10-12 Eljárás vörösiszap víztelenítésére/szűrésére és mosására
PCT/EP1995/004021 WO1996011737A1 (de) 1994-10-14 1995-10-12 Verfahren zur entwässerung und waschung von rotschlamm
US08/817,207 US6033579A (en) 1994-10-14 1995-10-12 Red mud dewatering and washing process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT0194394A AT401654B (de) 1994-10-14 1994-10-14 Verfahren zur entwässerung und waschung von rotschlamm

Publications (2)

Publication Number Publication Date
ATA194394A true ATA194394A (de) 1996-03-15
AT401654B AT401654B (de) 1996-11-25

Family

ID=3524394

Family Applications (1)

Application Number Title Priority Date Filing Date
AT0194394A AT401654B (de) 1994-10-14 1994-10-14 Verfahren zur entwässerung und waschung von rotschlamm

Country Status (5)

Country Link
US (1) US6033579A (de)
AT (1) AT401654B (de)
AU (1) AU692943B2 (de)
HU (1) HUT77063A (de)
WO (1) WO1996011737A1 (de)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6409929B2 (en) * 1992-11-11 2002-06-25 Bokela Ingenieurgesellschaft Fur Mechanische Verfahrenstechnik Mbh Steam drying of rotary filter cakes without crack formation
US7815808B2 (en) * 2002-01-22 2010-10-19 Flsmidth A/S Hot-gas pressure-filter apparatus
US8971913B2 (en) * 2003-06-27 2015-03-03 Qualcomm Incorporated Method and apparatus for wireless network hybrid positioning
CN1308241C (zh) * 2004-11-25 2007-04-04 中国铝业股份有限公司 一种氧化铝溶出料浆分离赤泥的方法
CN100348521C (zh) * 2005-07-18 2007-11-14 贵阳铝镁设计研究院 赤泥输送及过滤工艺
CN100396383C (zh) * 2005-09-22 2008-06-25 贵阳铝镁设计研究院 粗细赤泥分级方法
US8236185B2 (en) * 2006-03-23 2012-08-07 J.I. Enterprises, Inc. Methods for using sulfidized red mud
US20090234174A1 (en) * 2008-03-11 2009-09-17 Geochem Remediation Llc Solid-phase activation of bauxite refinery residue for heavy metals remediation
FR2934852B1 (fr) * 2008-08-06 2011-06-24 Alcan Int Ltd Perfectionnement au procede bayer de production de trihydrate d'alumine, ledit procede comprenant une etape dans laquelle la liqueur sursaturee est filtree a haute temperature avant decomposition
US20110082340A1 (en) * 2009-10-07 2011-04-07 Tyco Healthercare Group LP Foam collar for surgical access devices
US9199855B2 (en) 2010-08-09 2015-12-01 Nalco Company Chemical treatment to improve red mud separation and washing in the bayer process
EP2686458A4 (de) 2011-03-18 2015-04-15 Orbite Aluminae Inc Verfahren zur wiedergewinnung von seltenerdelementen aus aluminiumhaltigen materialien
JP5894262B2 (ja) 2011-05-04 2016-03-23 オーバイト アルミナ インコーポレイテッドＯｒｂｉｔｅ Ａｌｕｍｉｎａｅ Ｉｎｃ． 種々の鉱石から希土類元素を回収する方法
CA2834356C (en) 2011-06-03 2014-11-25 Orbite Aluminae Inc. Methods for preparing hematite
CN102757060B (zh) * 2011-09-16 2013-11-06 东北大学 一种消纳拜耳法赤泥的方法
CA2848751C (en) 2011-09-16 2020-04-21 Orbite Aluminae Inc. Processes for preparing alumina and various other products
CN102527677B (zh) * 2012-01-04 2013-11-06 中国恩菲工程技术有限公司 海绵镉洗涤设备
BR112014016732A8 (pt) 2012-01-10 2017-07-04 Orbite Aluminae Inc processos para tratar lama vermelha
EP2838848B1 (de) 2012-03-29 2019-05-08 Orbite Technologies Inc. Verfahren zur behandlung von flugasche
MY175471A (en) 2012-07-12 2020-06-29 Orbite Tech Inc Processes for preparing titanium oxide and various other products
JP2015535886A (ja) 2012-09-26 2015-12-17 オーバイト アルミナ インコーポレイテッドＯｒｂｉｔｅ Ａｌｕｍｉｎａｅ Ｉｎｃ． 種々の材料のＨＣｌ浸出によるアルミナおよび塩化マグネシウムを調製するためのプロセス
WO2014075173A1 (en) 2012-11-14 2014-05-22 Orbite Aluminae Inc. Methods for purifying aluminium ions
US10427950B2 (en) 2015-12-04 2019-10-01 Ecolab Usa Inc. Recovery of mining processing product using boronic acid-containing polymers
NO20200292A1 (en) * 2020-03-11 2021-09-13 Norsk Hydro As Method and System for Long-Term Management of Bauxite Mining Tailings
AU2022220705A1 (en) 2021-02-12 2023-08-17 Ecolab Usa Inc. Purification of bauxite ores using boronic acid-functional compounds

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3776717A (en) * 1970-12-04 1973-12-04 Tatabanyai Szenbanyak Method for processing of red mud
HU162284B (de) * 1971-04-17 1973-01-29
US3989513A (en) * 1972-06-06 1976-11-02 Magyar Aluminiumipari Troszt Method for the treatment of red mud
US4119698A (en) * 1976-11-26 1978-10-10 Kernforschungsanlage Julich, Gesellschaft Mit Beschrankter Haftung Reclamation treatment of red mud
US4169824A (en) * 1977-06-22 1979-10-02 Nalco Chemical Company Red mud treatment
US4146573A (en) * 1978-03-10 1979-03-27 Nalco Chemical Company Red mud treatment
JPS5912805B2 (ja) * 1978-04-24 1984-03-26 日本軽金属株式会社 赤泥を利用した土地造成法
AU541439B2 (en) * 1981-11-19 1985-01-10 Alcoa Chemie G.M.B.H. Thixotropic sludge (eg. red mud) disposal using electrolyte
DE3215727A1 (de) * 1982-04-28 1983-11-03 Rheinische Braunkohlenwerke AG, 5000 Köln Verfahren zum behandeln von rotschlamm
US4810682A (en) * 1986-06-26 1989-03-07 Comalco Aluminum Limited Production of useful materials including synthetic nepheline from Bayer red mud
HU209326B (en) * 1987-07-31 1994-04-28 Aquatech Trade Kft Method for multistage wasteless processing of red sludge and extracting chemical base materials from it
DD268406A5 (de) * 1988-03-29 1989-05-31 Melyepitesi Tervezoe Vallalat,Hu Verfahren zur deponie von rotschlamm
CA1330865C (en) * 1989-01-31 1994-07-26 George Dennison Fulford Process for producing alumina from bauxite
US5030424A (en) * 1989-04-03 1991-07-09 Alcan International Limited Recovery of rare earth elements from Bayer process red mud
US5043077A (en) * 1989-12-11 1991-08-27 Alcan International Limited Treatment of bayer process red mud slurries
AT398389B (de) * 1992-11-06 1994-11-25 Andritz Patentverwaltung Verfahren und anlage zur trennung von feststoff-flüssigkeit-mischungen
US5534235A (en) * 1995-09-05 1996-07-09 Nalco Chemical Company Polymers containing phosphonic acid groups for the treatment of red mud in the Bayer process
US5607598A (en) * 1995-07-14 1997-03-04 Ormet Corporation Treatment and disposal of red mud generated in the Bayer Process

Also Published As

Publication number Publication date
US6033579A (en) 2000-03-07
AU692943B2 (en) 1998-06-18
HUT77063A (hu) 1998-03-02
WO1996011737A1 (de) 1996-04-25
AT401654B (de) 1996-11-25
AU3841595A (en) 1996-05-06

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Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification
ELJ Ceased due to non-payment of the annual fee