ES8701689A1 - Procedimiento para realizar un cebado en dos tiempos desti- nado a la obtencion,con gran productividad,de alumina de granos gruesos - Google Patents

Procedimiento para realizar un cebado en dos tiempos desti- nado a la obtencion,con gran productividad,de alumina de granos gruesos

Info

Publication number
ES8701689A1
ES8701689A1 ES549126A ES549126A ES8701689A1 ES 8701689 A1 ES8701689 A1 ES 8701689A1 ES 549126 A ES549126 A ES 549126A ES 549126 A ES549126 A ES 549126A ES 8701689 A1 ES8701689 A1 ES 8701689A1
Authority
ES
Spain
Prior art keywords
stage
liquor
seed
aluminate
liter
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
Application number
ES549126A
Other languages
English (en)
Other versions
ES549126A0 (es
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9310024&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ES8701689(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Aluminium Pechiney SA filed Critical Aluminium Pechiney SA
Publication of ES549126A0 publication Critical patent/ES549126A0/es
Publication of ES8701689A1 publication Critical patent/ES8701689A1/es
Expired 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
    • C01F7/14—Aluminium oxide or hydroxide from alkali metal aluminates
    • C01F7/144—Aluminium oxide or hydroxide from alkali metal aluminates from aqueous aluminate solutions by precipitation due to cooling, e.g. as part of the Bayer process
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/51—Particles with a specific particle size distribution
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Insulating Bodies (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)

Abstract

METODO DE PRODUCCION DE ALUMINA DE GRANOS GRUESOS MEDIANTE PRECIPITACION DE HIDROXIDO DE ALUMINIO POR CEBADO EN DOS TIEMPOS. COMPRENDE LA PRECIPITACION EN TRES ETAPAS SUCESIVAS, REALIZADAS EN UNA CASCADA DE RECIPIENTES DISPUESTOS EN SERIE, EN LA PRIMERA DE LAS CUALES SE INTRODUCE EN EL RECIPIENTE UN LIQUIDO DE ALUMINATO CON UN CONTENIDO EQUIVALENTE A 110-175 G DE NA2O G/LITRO, Y UNA RELACION DE AL2O3/NA2O DE 1,10 A 1,20, A UNA TEMPERATURA COMPRENDIDA ENTRE 70JC A 75JC Y SE SIEMBRA CON 20 A 120 G DE TRIHIDRATO POR LITRO DE ALUMINATO; EN LA SEGUNDA ETAPA SE PRODUCE UNA CANTIDAD DE MATERIA SECA COMPRENDIDA ENTRE 400 Y 800 G/L DE SUSPENSION POR DESCOMPOSICION DE ALUMINATO A UNA TEMPERATURA COMPRENDIDA ENTRE 50JC Y 65JC, Y EN LA MISMA SE PROVOCA UNA RETENCION SELECTIVA DE ALUMINA; Y EN LA TERCERA ETAPA SE HACE UN APORTE MASIVO DE CEBOS FINOS CON GRAN SUPERFICIE ESPECIFICA, A UNA TEMPERATURA ENTRE 45JC A 55JC.
ES549126A 1984-11-22 1985-11-21 Procedimiento para realizar un cebado en dos tiempos desti- nado a la obtencion,con gran productividad,de alumina de granos gruesos Expired ES8701689A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8418135A FR2573414B1 (fr) 1984-11-22 1984-11-22 Procede de mise en oeuvre d'un amorcage en deux temps pour l'obtention d'alumine a gros grains

Publications (2)

Publication Number Publication Date
ES549126A0 ES549126A0 (es) 1986-12-01
ES8701689A1 true ES8701689A1 (es) 1986-12-01

Family

ID=9310024

Family Applications (1)

Application Number Title Priority Date Filing Date
ES549126A Expired ES8701689A1 (es) 1984-11-22 1985-11-21 Procedimiento para realizar un cebado en dos tiempos desti- nado a la obtencion,con gran productividad,de alumina de granos gruesos

Country Status (22)

Country Link
US (1) US4617179A (es)
EP (1) EP0184526B2 (es)
JP (1) JPS61132514A (es)
CN (1) CN1006221B (es)
AU (1) AU577643B2 (es)
BR (1) BR8505854A (es)
CA (1) CA1279759C (es)
DE (1) DE3563030D1 (es)
ES (1) ES8701689A1 (es)
FR (1) FR2573414B1 (es)
GB (1) GB2169272B (es)
GR (1) GR852821B (es)
HU (1) HU204735B (es)
IE (1) IE58592B1 (es)
IN (1) IN166649B (es)
MX (1) MX165173B (es)
NO (1) NO170074C (es)
NZ (1) NZ214207A (es)
OA (1) OA08174A (es)
TR (1) TR25421A (es)
YU (1) YU44051B (es)
ZA (1) ZA858905B (es)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2591581B1 (fr) * 1985-12-17 1990-05-25 Pechiney Aluminium Procede d'obtention avec une forte productivite de trihydroxyde d'aluminium, de haute purete et de diametre median inferieur a 4 micrometres, regle a la demande.
FR2598701B1 (fr) * 1986-05-15 1988-08-05 Pechiney Aluminium Procede et dispositif de decomposition de liqueur d'aluminate de sodium pour la production d'alumine
US4985311A (en) * 1987-11-26 1991-01-15 Nippon Steel Corporation Zn-Ni based composite electroplated steel sheet and multi-layer composite plated steel sheet
US5127950A (en) * 1989-09-14 1992-07-07 Lonza Ltd. Short-prismatic aluminum hydroxide, process for preparing same from supersaturated sodium aluminate-liquor, and compositions containing same
US5158577A (en) * 1990-02-14 1992-10-27 Alcan International Limited Process for precipitating alumina from Bayer process liquor
US5163973A (en) * 1990-02-14 1992-11-17 Alcan Internatinal Limited Process for producing low soda alumina
US5102426A (en) * 1990-02-14 1992-04-07 Alcan International Limited Process for precipitating alumina from bayer process liquor
ES2133388T3 (es) * 1992-02-19 1999-09-16 Comalco Alu Mejoras en plantas de alumina.
CA2163826C (en) * 1994-11-30 2006-03-14 Iwan Dilip Kumar Hiralal Process for the precipitation of aluminum trihydroxide from a supersaturated sodium aluminate solution
EP0714852B1 (en) 1994-11-30 1999-08-18 Billiton Intellectual Property B.V. Process for the precipitation of aluminum trihydroxide from a supersaturated sodium aluminate solution
US5546358A (en) * 1995-03-07 1996-08-13 The United States Of America As Represented By The Secretary Of The Army Device for assessing an impact of a projectile with a target using optical radiation
US7067106B2 (en) * 2003-06-30 2006-06-27 Nalco Company Aluminum hydroxide, made via the bayer process, with low organic carbon
CN100402429C (zh) * 2005-06-23 2008-07-16 中国铝业股份有限公司 烧结法种分生产砂状氧化铝的方法
CN100572277C (zh) * 2007-05-31 2009-12-23 中国铝业股份有限公司 一种改进的串联法生产氧化铝的方法
JP5285317B2 (ja) * 2008-03-28 2013-09-11 住友化学株式会社 水酸化アルミニウムの製造方法
US8329072B2 (en) 2010-11-24 2012-12-11 Brimrock International Inc. Method and system for generating sulfur seeds and granules
RU2638847C1 (ru) * 2016-12-29 2017-12-18 федеральное государственное бюджетное образовательное учреждение высшего образования "Санкт-Петербургский горный университет" Способ получения гидроксида алюминия
CN106986362A (zh) * 2017-04-12 2017-07-28 柳健康 一种铝酸钠溶液高浓度低固含一段种子分解工艺
CN112316478B (zh) * 2020-11-18 2021-07-20 青岛科技大学 一种适用于反应结晶过程的多级梯度连续结晶方法

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1045216A (en) * 1963-05-06 1966-10-12 Aluminium Lab Ltd Improvements in or relating to the precipitation of alumina
DE2531646A1 (de) * 1975-07-15 1977-02-03 Ekato Werke Verfahren und vorrichtung zur herstellung von tonerde
CH644332A5 (de) * 1978-11-07 1984-07-31 Alusuisse Verfahren zur herstellung von grobem aluminiumhydroxid.
JPS5951489B2 (ja) * 1979-08-13 1984-12-14 住友アルミニウム製錬株式会社 粗大粒子水酸化アルミニウムの製造方法
US4305913A (en) * 1980-08-06 1981-12-15 Kaiser Aluminum & Chemical Corporation Alumina hydrate production from Bayer liquor by seeding
JPS57140316A (en) * 1981-02-20 1982-08-30 Sumitomo Alum Smelt Co Ltd Manufacture of coarse granular aluminum hydroxide
FR2529877A1 (fr) * 1982-07-08 1984-01-13 Pechiney Aluminium Procede de production d'un trihydroxyde d'aluminium de grosse granulometrie
DE3269635D1 (en) * 1982-09-02 1986-04-10 Alcoa Chemie Gmbh Process for the production of alumine
AU9177082A (en) * 1982-12-22 1984-06-28 Alcoa Chemie G.M.B.H. Recovery of alumina
FR2551429B2 (fr) * 1983-09-05 1985-10-18 Pechiney Aluminium Procede de production d'un trihydroxyde d'aluminium de granulometrie grosse et reguliere
US4511542A (en) * 1984-05-24 1985-04-16 Kaiser Aluminum & Chemical Corporation Bayer process production of alumina hydrate

Also Published As

Publication number Publication date
JPH0336767B2 (es) 1991-06-03
CN1006221B (zh) 1989-12-27
EP0184526B1 (fr) 1988-06-01
BR8505854A (pt) 1986-08-12
CN85108237A (zh) 1986-05-10
ES549126A0 (es) 1986-12-01
DE3563030D1 (en) 1988-07-07
NO854662L (no) 1986-05-23
NO170074B (no) 1992-06-01
TR25421A (tr) 1993-02-04
IE58592B1 (en) 1993-10-20
AU577643B2 (en) 1988-09-29
AU5024985A (en) 1986-05-29
IN166649B (es) 1990-06-30
IE852923L (en) 1986-05-22
JPS61132514A (ja) 1986-06-20
ZA858905B (en) 1986-08-27
GR852821B (es) 1986-02-25
US4617179A (en) 1986-10-14
OA08174A (fr) 1987-03-31
GB2169272B (en) 1989-01-05
NZ214207A (en) 1989-06-28
YU44051B (en) 1990-02-28
FR2573414A1 (fr) 1986-05-23
HUT44741A (en) 1988-04-28
MX165173B (es) 1992-10-30
GB2169272A (en) 1986-07-09
YU181785A (en) 1988-04-30
EP0184526A1 (fr) 1986-06-11
NO170074C (no) 1992-09-09
GB8528659D0 (en) 1985-12-24
FR2573414B1 (fr) 1989-12-01
HU204735B (en) 1992-02-28
EP0184526B2 (fr) 1994-11-30
CA1279759C (fr) 1991-02-05

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