FR2423445A1 - Procede et appareil de production d'alumine anhydre a partir de trihydrate d'alumine - Google Patents

Procede et appareil de production d'alumine anhydre a partir de trihydrate d'alumine

Info

Publication number
FR2423445A1
FR2423445A1 FR7909875A FR7909875A FR2423445A1 FR 2423445 A1 FR2423445 A1 FR 2423445A1 FR 7909875 A FR7909875 A FR 7909875A FR 7909875 A FR7909875 A FR 7909875A FR 2423445 A1 FR2423445 A1 FR 2423445A1
Authority
FR
France
Prior art keywords
alumina
production
trihydrate
anhydrous
alumina trihydrate
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.)
Granted
Application number
FR7909875A
Other languages
English (en)
Other versions
FR2423445B1 (fr
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.)
FLSmidth and Co AS
Original Assignee
FLSmidth and Co AS
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 FLSmidth and Co AS filed Critical FLSmidth and Co AS
Publication of FR2423445A1 publication Critical patent/FR2423445A1/fr
Application granted granted Critical
Publication of FR2423445B1 publication Critical patent/FR2423445B1/fr
Granted 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
    • C01F7/44—Dehydration of aluminium oxide or hydroxide, i.e. all conversions of one form into another involving a loss of water
    • C01F7/441—Dehydration of aluminium oxide or hydroxide, i.e. all conversions of one form into another involving a loss of water by calcination
    • C01F7/444—Apparatus therefor
    • 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
    • C01F7/44—Dehydration of aluminium oxide or hydroxide, i.e. all conversions of one form into another involving a loss of water
    • C01F7/441—Dehydration of aluminium oxide or hydroxide, i.e. all conversions of one form into another involving a loss of water by calcination
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/12—Surface area

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)
  • Catalysts (AREA)

Abstract

L'invention concerne la transformation du trihydrate d'alumine en alpha -alumine. Une précalcination (dans un courant de gaz chauds) enlève H2 O libre et chimiquement liée, puis l'alumine précalcinée est mélangée au fuel-oil et le mélange est mis en suspension dans le gaz contenant O2 introduit dans la zone de combustion de la chambre de réaction (recristallisation exothermique); l'alumine est ensuite entraînée par le gaz, puis séparée de celui-ci et refroidie rapidement. Application de cette alumine: production d'aluminium par électrolyse.
FR7909875A 1978-04-20 1979-04-19 Procede et appareil de production d'alumine anhydre a partir de trihydrate d'alumine Granted FR2423445A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1568978 1978-04-20

Publications (2)

Publication Number Publication Date
FR2423445A1 true FR2423445A1 (fr) 1979-11-16
FR2423445B1 FR2423445B1 (fr) 1983-08-05

Family

ID=10063676

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7909875A Granted FR2423445A1 (fr) 1978-04-20 1979-04-19 Procede et appareil de production d'alumine anhydre a partir de trihydrate d'alumine

Country Status (15)

Country Link
US (1) US4529579A (fr)
JP (1) JPS54151597A (fr)
AU (1) AU533515B2 (fr)
BR (1) BR7902452A (fr)
DE (1) DE2916142C2 (fr)
ES (2) ES479716A1 (fr)
FR (1) FR2423445A1 (fr)
GB (1) GB2097903B (fr)
HU (1) HU180947B (fr)
IN (1) IN150912B (fr)
MX (1) MX151661A (fr)
NL (1) NL7903123A (fr)
NO (1) NO791174L (fr)
SU (1) SU932979A3 (fr)
YU (1) YU44842B (fr)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK157442C (da) * 1982-12-07 1990-06-05 Smidth & Co As F L Fremgangsmaade og apparat til kalcinering af fosfat
FR2549816B1 (fr) * 1983-07-28 1985-11-15 Fives Cail Babcock Installation de calcination pour la production de plusieurs qualites d'alumine et procede d'exploitation de cette installation
FR2552750B1 (fr) * 1983-09-30 1987-08-14 Fives Cail Babcock Procede d'exploitation d'une installation de calcination pour la production de plusieurs qualites d'alumine
IT1184114B (it) * 1985-01-18 1987-10-22 Montedison Spa Alfa allumina sotto forma di particelle sferiche,non aggregate,a distribuzione granulometrica ristretta e di dimensioni inferiori a 2 micron,e processo per la sua preparazione
US5075090A (en) * 1988-01-12 1991-12-24 Vista Chemical Company Process for preparing small particle size mixed metal oxides
ES2047956T3 (es) * 1989-11-27 1994-03-01 Alcan Int Ltd Procedimiento de calcinacion para la produccion de alumina a partir de trihidrato de alumina y aparato para esto.
DE19542309A1 (de) * 1995-11-14 1997-05-15 Metallgesellschaft Ag Verfahren zur Herstellung von Aluminiumoxid aus Aluminiumhydroxid
US6905662B2 (en) * 2002-05-16 2005-06-14 Ffe Minerals Corp. Elimination of undesirable volatile organic byproducts of an alumina process
DE10260739B3 (de) * 2002-12-23 2004-09-16 Outokumpu Oy Verfahren und Anlage zur Herstellung von Metalloxid aus Metallverbindungen
US9109801B2 (en) * 2009-07-02 2015-08-18 Pneumatic Processing Technologies, Llc Coal heat-treatment process and system
US8309052B2 (en) * 2009-07-02 2012-11-13 Pneumatic Processing Technologies, L.L.C. Carbon heat-treatment process
CN106542555A (zh) * 2015-09-21 2017-03-29 沈阳铝镁设计研究院有限公司 一种气态悬浮焙烧炉富氧燃烧工艺方法
US10345048B2 (en) * 2016-05-12 2019-07-09 Golden Renewable Energy, LLC Cyclonic condensing and cooling system
US10436525B2 (en) 2016-05-12 2019-10-08 Golden Renewable Energy, LLC Cyclonic cooling system
KR20220070548A (ko) 2016-06-21 2022-05-31 브레이븐 인바이론멘탈 엘엘씨 챠르 분리기 및 방법
US10961062B2 (en) 2016-06-21 2021-03-30 Golden Renewable Energy, LLC Bag press feeder assembly
US20170361268A1 (en) 2016-06-21 2017-12-21 Golden Renewable Energy Char separator
EP3481923A4 (fr) 2016-07-05 2019-12-18 Golden Renewable Energy, LLC Système et procédé pour convertir des déchets de plastiques en combustible
RU2660003C1 (ru) * 2017-05-16 2018-07-04 Владимир Николаевич Ведров Установка для термообработки гидроксида алюминия

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1080901A (fr) * 1952-06-12 1954-12-14 Dorr Co Procédé et appareil de calcination de l'alumine
DE1092889B (de) * 1958-03-11 1960-11-17 Metallgesellschaft Ag Verfahren und Vorrichtung zur Durchfuehrung von waermeverbrauchenden Reaktionen zwischen Feststoffen und Gasen nach dem Wirbelschichtprinzip
FR1292741A (fr) * 1960-06-24 1962-05-04 Metallgesellschaft Ag Procédé pour la calcination de l'hydrate d'alumine
FR1295554A (fr) * 1961-04-28 1962-06-08 Electrochimie Soc Dispositif pour la fabrication d'alumines anhydres
DE1146041B (de) * 1960-06-24 1963-03-28 Metallgesellschaft Ag Calcinieren von Tonerdehydrat
FR1559441A (fr) * 1967-06-16 1969-03-07

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB745552A (en) * 1952-06-12 1956-02-29 Dorr Oliver Inc Process of calcining finely divided solids
US3057680A (en) * 1958-03-11 1962-10-09 Metallgesellschaft Ag Method of carrying out heat-consuming reactions
FR1248038A (fr) * 1959-10-28 1960-12-09 Electrochimie Electrometallurg Procédé de fabrication d'alumines anhydres
GB1205804A (en) * 1966-10-12 1970-09-16 Ishikawajima Harima Heavy Ind A method of and apparatus for calcining ore
GB1428680A (en) * 1972-12-11 1976-03-17 Smidth & Co As F L Calcination of pulverous material
JPS5716927B2 (fr) * 1974-03-11 1982-04-08
GB1463124A (en) * 1974-06-18 1977-02-02 Smidth & Co As F L Calcination of pulverous material
DE2629082C2 (de) * 1976-06-29 1985-09-05 Krupp Polysius Ag, 4720 Beckum Verfahren und Vorrichtung zur Wärmebehandlung von Feingut
DE3008234A1 (de) * 1980-01-23 1981-07-30 Aluterv-EKI Forschungs-, Entwurfs-u.Generalauftragnehmer-Zentrale der ungar. Aluminiumwerke, Budapest Verfahren und anlage zum brennen von feinkoernigem gut

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1080901A (fr) * 1952-06-12 1954-12-14 Dorr Co Procédé et appareil de calcination de l'alumine
DE1092889B (de) * 1958-03-11 1960-11-17 Metallgesellschaft Ag Verfahren und Vorrichtung zur Durchfuehrung von waermeverbrauchenden Reaktionen zwischen Feststoffen und Gasen nach dem Wirbelschichtprinzip
FR1292741A (fr) * 1960-06-24 1962-05-04 Metallgesellschaft Ag Procédé pour la calcination de l'hydrate d'alumine
DE1146041B (de) * 1960-06-24 1963-03-28 Metallgesellschaft Ag Calcinieren von Tonerdehydrat
FR1295554A (fr) * 1961-04-28 1962-06-08 Electrochimie Soc Dispositif pour la fabrication d'alumines anhydres
DE1207361B (de) * 1961-04-28 1965-12-23 Electro Chimie Metal Vorrichtung zum Dehydratisieren und Umkristallisieren von Aluminiumoxydhydrat zu alphlO
FR1559441A (fr) * 1967-06-16 1969-03-07

Also Published As

Publication number Publication date
MX151661A (es) 1985-01-30
AU4631079A (en) 1979-10-25
NO791174L (no) 1979-10-23
ES479716A1 (es) 1980-06-16
SU932979A3 (ru) 1982-05-30
YU223982A (en) 1986-08-31
IN150912B (fr) 1983-01-15
BR7902452A (pt) 1979-10-30
NL7903123A (nl) 1979-10-23
US4529579A (en) 1985-07-16
DE2916142A1 (de) 1979-10-31
DE2916142C2 (de) 1983-01-27
FR2423445B1 (fr) 1983-08-05
JPS54151597A (en) 1979-11-28
AU533515B2 (en) 1983-12-01
GB2097903B (en) 1983-03-23
GB2097903A (en) 1982-11-10
HU180947B (en) 1983-05-30
YU44842B (en) 1991-04-30
ES482578A1 (es) 1980-04-16

Similar Documents

Publication Publication Date Title
FR2423445A1 (fr) Procede et appareil de production d'alumine anhydre a partir de trihydrate d'alumine
GB1500096A (en) Method of carrying out endothermic processes
KR900000623B1 (ko) 석고의 하소방법과 그 장치
SU668578A3 (ru) Способ получени окиси алюмини
FR2390022A1 (fr)
BR0007389A (pt) Processos para separação de um ou mais gases de uma mistura de gases e para produção de uma membrana de poliimida porosa e membrana de poliimida para separação de gases
FR2362082A1 (fr) Procede de decomposition thermique du chlorure d'aluminium hexa-hydrate par chauffage indirect
FR2361305A1 (fr) Procede continu cyclique de production de carbonate de lithium
RU94045247A (ru) Аппарат для контактирования исходного сырья с кислотным катализатором и способ алкинирования
FR2384719A1 (fr) Procede pour l'elimination d'impuretes chlorures a partir de tio2
FR2362081A1 (fr) Procede de decomposition thermique du chlorure d'aluminium hexa-hydrate et d'obtention d'alumine
EA200000072A1 (ru) Способ производства меламина
ES467255A1 (es) Procedimiento para la obtencion de alumina pura.
FR2434859A1 (fr) Procede de separation d'un effluent de produit de reaction en phase mixte
FR2429981A1 (fr) Procede et dispositif pour la separation d'un melange gazeux
FR2427318A1 (fr) Procede pour la production de methanol
FR2396068A1 (fr) Procede pour produire un gaz de synthese
US1364273A (en) Process for the production of lampblack
US1926691A (en) Process for the production of dimethyl amine
US2739055A (en) Method and apparatus for reducing iron ores by means of methane gas
GB2019369A (en) Improvements relating to the production of anhydrous alumina
GB1480623A (en) Heat transfer systems
US996032A (en) Process for the manufacture of aluminium nitrid.
GB1054128A (fr)
FR2369212A1 (fr) Preparation d'un nouveau support alumineux pour catalyseurs

Legal Events

Date Code Title Description
ST Notification of lapse