FR2860782B1 - Procede pour reduire l'encrassement des echangeurs thermiques d'un circuit bayer - Google Patents

Procede pour reduire l'encrassement des echangeurs thermiques d'un circuit bayer

Info

Publication number
FR2860782B1
FR2860782B1 FR0311909A FR0311909A FR2860782B1 FR 2860782 B1 FR2860782 B1 FR 2860782B1 FR 0311909 A FR0311909 A FR 0311909A FR 0311909 A FR0311909 A FR 0311909A FR 2860782 B1 FR2860782 B1 FR 2860782B1
Authority
FR
France
Prior art keywords
encrassment
reducing
heat exchanger
bayer circuit
bayer
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.)
Expired - Fee Related
Application number
FR0311909A
Other languages
English (en)
Other versions
FR2860782A1 (fr
Inventor
Benoit Cristol
Valerie Esquerre
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.)
Rio Tinto France SAS
Original Assignee
Aluminium Pechiney SA
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 Aluminium Pechiney SA filed Critical Aluminium Pechiney SA
Priority to FR0311909A priority Critical patent/FR2860782B1/fr
Priority to AU2004280272A priority patent/AU2004280272B2/en
Priority to OA1200600117A priority patent/OA13269A/fr
Priority to BRPI0415197-6A priority patent/BRPI0415197A/pt
Priority to CNA200480033571XA priority patent/CN1960945A/zh
Priority to PCT/FR2004/002538 priority patent/WO2005035445A2/fr
Publication of FR2860782A1 publication Critical patent/FR2860782A1/fr
Application granted granted Critical
Publication of FR2860782B1 publication Critical patent/FR2860782B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • C01F7/0606—Making-up the alkali hydroxide solution from recycled spent liquor

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
FR0311909A 2003-10-10 2003-10-10 Procede pour reduire l'encrassement des echangeurs thermiques d'un circuit bayer Expired - Fee Related FR2860782B1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
FR0311909A FR2860782B1 (fr) 2003-10-10 2003-10-10 Procede pour reduire l'encrassement des echangeurs thermiques d'un circuit bayer
AU2004280272A AU2004280272B2 (en) 2003-10-10 2004-10-08 Method for reducing fouling of heat exchangers in a Bayer circuit
OA1200600117A OA13269A (fr) 2003-10-10 2004-10-08 Procédé pour réduire l'encrassement de échangeurs thermiques d'un circuit Bayer.
BRPI0415197-6A BRPI0415197A (pt) 2003-10-10 2004-10-08 processo para reduzir a obstrução dos trocadores térmicos de um circuito bayer
CNA200480033571XA CN1960945A (zh) 2003-10-10 2004-10-08 减少拜耳回路中换热器积垢的方法
PCT/FR2004/002538 WO2005035445A2 (fr) 2003-10-10 2004-10-08 Procede pour reduire l'encrassement des echangeurs thermiques d'un circuit bayer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0311909A FR2860782B1 (fr) 2003-10-10 2003-10-10 Procede pour reduire l'encrassement des echangeurs thermiques d'un circuit bayer

Publications (2)

Publication Number Publication Date
FR2860782A1 FR2860782A1 (fr) 2005-04-15
FR2860782B1 true FR2860782B1 (fr) 2006-09-29

Family

ID=34355407

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0311909A Expired - Fee Related FR2860782B1 (fr) 2003-10-10 2003-10-10 Procede pour reduire l'encrassement des echangeurs thermiques d'un circuit bayer

Country Status (6)

Country Link
CN (1) CN1960945A (fr)
AU (1) AU2004280272B2 (fr)
BR (1) BRPI0415197A (fr)
FR (1) FR2860782B1 (fr)
OA (1) OA13269A (fr)
WO (1) WO2005035445A2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1474885A (fr) * 1966-02-07 1967-03-31 Electro Chimie Soc D Procédé de détartrage des appareils utilisés pour la concentration des solutions d'aluminate de sodium
US5118484A (en) * 1990-08-17 1992-06-02 Alcan International Limited Desilication of bayer process solutions
FR2686872B1 (fr) * 1992-02-05 1994-06-03 Pechiney Aluminium Procede d'elimination de l'oxalate de sodium des solutions d'aluminate de sodium du cycle bayer.
AUPM761194A0 (en) * 1994-08-23 1994-09-15 Comalco Aluminium Limited Improved process for the extraction of alumina from bauxite
JPH0975498A (ja) * 1995-09-07 1997-03-25 Nishizawa:Kk スキー

Also Published As

Publication number Publication date
WO2005035445A3 (fr) 2006-06-22
BRPI0415197A (pt) 2006-12-05
CN1960945A (zh) 2007-05-09
AU2004280272B2 (en) 2009-08-06
WO2005035445A2 (fr) 2005-04-21
OA13269A (fr) 2007-01-31
FR2860782A1 (fr) 2005-04-15
AU2004280272A1 (en) 2005-04-21

Similar Documents

Publication Publication Date Title
FR2789167B1 (fr) Ailette ondulee pour echangeur de chaleur
DE60219538D1 (de) Wärmetauscher
EP1541953A4 (fr) Tube destine a un echangeur thermique
EP1586844A4 (fr) Ailette de plaque pour un echangeur de chaleur et noyau d'echangeur de chaleur
EP1470380A4 (fr) Echangeur thermique
GB0124669D0 (en) Improved secondary heat exchanger for water boiler
FR2840056B1 (fr) Barre de support pour echangeur de chaleur
GB0416648D0 (en) Header for heat exchanger
DE10328846A8 (de) Wärmetauscher
FR2860289B1 (fr) Echangeur de chaleur de forme cintree et procede pour sa fabrication
DE60139106D1 (de) Wärmetauscher
FR2864215B1 (fr) Element de circuit pour echangeur de chaleur
AU2003246078A8 (en) Heat exchanger
EP1359384A4 (fr) Echangeur thermique
EP1564517A4 (fr) Reservoir pour echangeur de chaleur
FR2860782B1 (fr) Procede pour reduire l'encrassement des echangeurs thermiques d'un circuit bayer
IL158705A0 (en) Method of forming a heat exchanger stack
DE60228357D1 (de) Wärmetauscher
DE60210531D1 (de) Wärmetauscher
FR2814537B1 (fr) Echangeur de chaleur pour deux fluides a rendement ameliore
AU2003239714A8 (en) Heat exchanger
EP1365204A4 (fr) Changeur de chaleur
FR2823559B1 (fr) Faisceau d'echange de chaleur comportant une surface d'echange perfectionnee, procede pour sa fabrication et echangeur comportant ce faisceau
GB2394037B (en) Heat exchangers
EP1577628A4 (fr) Reservoir pour echangeur de chaleur

Legal Events

Date Code Title Description
ST Notification of lapse

Effective date: 20120629