BR9611386A - Processo para a preparação de alumina a partir de hidróxido de alumìnio - Google Patents
Processo para a preparação de alumina a partir de hidróxido de alumìnioInfo
- Publication number
- BR9611386A BR9611386A BR9611386-3A BR9611386A BR9611386A BR 9611386 A BR9611386 A BR 9611386A BR 9611386 A BR9611386 A BR 9611386A BR 9611386 A BR9611386 A BR 9611386A
- Authority
- BR
- Brazil
- Prior art keywords
- solids
- fluidized bed
- aluminum hydroxide
- exhaust gas
- hot
- Prior art date
Links
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 title abstract 7
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 title abstract 2
- 239000007787 solid Substances 0.000 abstract 10
- 239000000203 mixture Substances 0.000 abstract 3
- 239000000725 suspension Substances 0.000 abstract 3
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
- C01F7/445—Dehydration of aluminium oxide or hydroxide, i.e. all conversions of one form into another involving a loss of water by calcination making use of a fluidised bed
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)
- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
- Cold Cathode And The Manufacture (AREA)
- Inorganic Insulating Materials (AREA)
- Compositions Of Oxide Ceramics (AREA)
Abstract
Patente de Invenção: <B>PROCESSO PARA A PREPARAçãO DE ALUMINA A PARTIR DE HIDRóXIDO DE ALUMìNIO''<D>. Um processo para a preparação de óxido de alumínio desidratado a partir de hidróxido de alumínio em um leito fluidizado circulante que compreende um reator em leito fluidizado (8), separador (6) e linha de fluxo de retorno envolve as seguintes etapas: o hidróxido de alumínio é alimentado ao segundo estágio no lado do gás de um preaquecedor (2) de suspensão em dois estágios operado por meio dos gases de exaustão do reator em leito fluidizado (8) do leito fluidizado circulante e é pelo menos hidróxido de alumínio parcialmente desidratado, desidratado proveniente do segundo estágio do preaquecedor (2) de suspensão é alimentado no primeiro estágio no lado do gás de um preaquecedor (5) de suspensão pelos gases de exaustão do reator em leito fluidizado (8) do leito fluidizado circulante, além disso desidratado e então alimentado ao leito fluidizado circulante, que é operado por gás de fluidização (10) contendo oxigênio indiretamente aquecido em um estágio de resfriamento subseq³ente pelo óxido de alumínio produzido e pelo gás secundário (11) contendo oxigênio diretamente aquecido alimentado a um nível superior. A temperatura no leito fluidizado circulante é ajustada entre 850 e 1000°C. O óxido de alumínio removido do leito fluidizado circulante é misturado durante pelo menos dois minutos com 10 a 25% em peso do hidróxido de alumínio parcialmente desidratado fornecido pelo primeiro estágio do lado do sólido do preaquecedor (2) de suspensão e é passado para o leito fluidizado circulante por uma derivação. O material misturado é então resfriado em um resfriador de suspensão em multiestágio (15, 16, 17, 18, 19, 20), gás secundário de aquecimento (11), e então no resfriador de leito fluidizado (23) aquecendo indiretamente o gás de fluidização (10).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19542309A DE19542309A1 (de) | 1995-11-14 | 1995-11-14 | Verfahren zur Herstellung von Aluminiumoxid aus Aluminiumhydroxid |
| PCT/EP1996/004764 WO1997018165A1 (de) | 1995-11-14 | 1996-11-02 | Verfahren zur herstellung von aluminiumoxid aus aluminiumhydroxid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BR9611386A true BR9611386A (pt) | 2000-10-24 |
Family
ID=7777360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BR9611386-3A BR9611386A (pt) | 1995-11-14 | 1996-11-02 | Processo para a preparação de alumina a partir de hidróxido de alumìnio |
Country Status (17)
| Country | Link |
|---|---|
| US (1) | US6015539A (pt) |
| EP (1) | EP0861208B1 (pt) |
| JP (1) | JP2000512255A (pt) |
| CN (1) | CN1085623C (pt) |
| AT (1) | ATE209607T1 (pt) |
| AU (1) | AU728011B2 (pt) |
| BR (1) | BR9611386A (pt) |
| CA (1) | CA2235706C (pt) |
| DE (2) | DE19542309A1 (pt) |
| DK (1) | DK0861208T3 (pt) |
| EA (1) | EA000516B1 (pt) |
| ES (1) | ES2169270T3 (pt) |
| ID (1) | ID17589A (pt) |
| IN (1) | IN186958B (pt) |
| SK (1) | SK284481B6 (pt) |
| UA (1) | UA48201C2 (pt) |
| WO (1) | WO1997018165A1 (pt) |
Families Citing this family (33)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19805897C1 (de) * | 1998-02-13 | 1998-12-03 | Metallgesellschaft Ag | Verfahren zur Schlußkühlung von wasserfreiem Aluminiumoxid |
| DE19944778B4 (de) * | 1999-09-17 | 2004-07-08 | Outokumpu Oyj | Verfahren zum thermischen Behandeln körniger Feststoffe |
| RU2241672C2 (ru) * | 2002-10-14 | 2004-12-10 | Научно-исследовательский физико-технический институт Красноярского государственного университета Министерства образования Российской Федерации | СПОСОБ ПОЛУЧЕНИЯ МАЛОЩЕЛОЧНОГО α-ГЛИНОЗЕМА |
| DE10260741A1 (de) * | 2002-12-23 | 2004-07-08 | Outokumpu Oyj | Verfahren und Anlage zur Wärmebehandlung von feinkörnigen Feststoffen |
| DE10260745A1 (de) * | 2002-12-23 | 2004-07-01 | Outokumpu Oyj | Verfahren und Anlage zur thermischen Behandlung von körnigen Feststoffen |
| DE10260739B3 (de) * | 2002-12-23 | 2004-09-16 | Outokumpu Oy | Verfahren und Anlage zur Herstellung von Metalloxid aus Metallverbindungen |
| DE10260737B4 (de) * | 2002-12-23 | 2005-06-30 | Outokumpu Oyj | Verfahren und Anlage zur Wärmebehandlung von titanhaltigen Feststoffen |
| DE10260731B4 (de) | 2002-12-23 | 2005-04-14 | Outokumpu Oyj | Verfahren und Anlage zur Wärmebehandlung von eisenoxidhaltigen Feststoffen |
| DE10260734B4 (de) * | 2002-12-23 | 2005-05-04 | Outokumpu Oyj | Verfahren und Anlage zur Herstellung von Schwelkoks |
| DE10260738A1 (de) * | 2002-12-23 | 2004-07-15 | Outokumpu Oyj | Verfahren und Anlage zur Förderung von feinkörnigen Feststoffen |
| DE10260733B4 (de) * | 2002-12-23 | 2010-08-12 | Outokumpu Oyj | Verfahren und Anlage zur Wärmebehandlung von eisenoxidhaltigen Feststoffen |
| DE10331364B3 (de) * | 2003-07-11 | 2005-01-27 | Outokumpu Oyj | Verfahren und Anlage zur Herstellung von Metalloxid aus Metallhydroxid |
| DE102004042430A1 (de) * | 2004-08-31 | 2006-03-16 | Outokumpu Oyj | Wirbelschichtreaktor zum thermischen Behandeln von wirbelfähigen Substanzen in einem mikrowellenbeheizten Wirbelbett |
| DE102006062151A1 (de) * | 2006-12-22 | 2008-06-26 | Outotec Oyj | Verfahren und Anlage zur Wärmebehandlung von partikulären Feststoffen, insbesondere zur Herstellung von Metalloxid aus Metallhydroxid |
| DE102007009758B4 (de) | 2007-02-27 | 2024-11-28 | Metso Outotec Finland Oy | Verfahren und Vorrichtung zur Regelung eines Feststoffstromes |
| DE102007014435B4 (de) | 2007-03-22 | 2014-03-27 | Outotec Oyj | Verfahren und Anlage zur Herstellung von Metalloxid aus Metallsalzen |
| DE102007041586B4 (de) * | 2007-09-01 | 2014-03-27 | Outotec Oyj | Verfahren und Anlage zur Wärmebehandlung von körnigen Feststoffen |
| DE102009006094B4 (de) | 2009-01-26 | 2018-10-31 | Outotec Oyj | Verfahren und Anlage zur Herstellung von Aluminiumoxid aus Aluminiumhydroxid |
| DE102009006095B4 (de) | 2009-01-26 | 2019-01-03 | Outotec Oyj | Verfahren und Anlage zur Herstellung von Aluminiumoxid aus Aluminiumhydroxid |
| CN101624201B (zh) * | 2009-08-12 | 2011-05-18 | 广西华银铝业有限公司 | 气体悬浮焙烧氧化铝余热加热平盘洗水的方法 |
| DE102009050165A1 (de) | 2009-10-21 | 2011-04-28 | Outotec Oyj | Vorrichtung zur Behandlung von Feststoffen und/oder Gasen |
| CN102050475B (zh) * | 2009-10-27 | 2013-07-03 | 沈阳铝镁设计研究院有限公司 | 双室流态化冷却器 |
| DE102010050495B4 (de) | 2010-11-08 | 2018-05-24 | Outotec Oyj | Verfahren und Anlage zur Herstellung von Aluminiumoxid aus Aluminiumhydroxid |
| DE102013103080A1 (de) | 2013-03-26 | 2014-06-12 | Outotec Oyj | Verfahren und Vorrichtung zum Entfernen von feineren Feststoffteilchen aus einem fluidisierten Feststoffgemisch |
| DE102015108722A1 (de) | 2015-06-02 | 2016-12-08 | Outotec (Finland) Oy | Verfahren und Anlage zur thermischen Behandlung von körnigen Feststoffen |
| CN105139897B (zh) * | 2015-07-23 | 2017-08-11 | 清华大学 | 一种大规模连续制备包覆颗粒的系统 |
| CN107311212A (zh) * | 2017-07-26 | 2017-11-03 | 沈阳新诚科技有限公司 | 一种提高1350t/d型氢氧化铝气态悬浮焙烧炉产量的方法 |
| WO2019114922A1 (en) * | 2017-12-11 | 2019-06-20 | Outotec (Finland) Oy | Process and plant for thermal decomposition of aluminium chloride hydrate into aluminium oxide |
| CN108751244B (zh) * | 2018-07-06 | 2024-04-09 | 北京航天石化技术装备工程有限公司 | 一种结晶铝盐焙烧制备工业级氧化铝的集成装置 |
| CN111675233B (zh) * | 2020-05-28 | 2023-11-10 | 宁夏盈氟金和科技有限公司 | 双流化床生产无水氟化铝系统及方法 |
| CN112174176B (zh) * | 2020-09-28 | 2022-11-15 | 沈阳鑫博工业技术股份有限公司 | 一种利用氢氧化铝制备α–氧化铝的装置及方法 |
| CN119317601A (zh) * | 2022-05-24 | 2025-01-14 | 俄罗斯工程技术中心有限责任公司 | 氢氧化铝的热处理装置 |
| CN118811844B (zh) * | 2024-06-24 | 2025-10-31 | 西安建筑科技大学 | 一种高热效率氢氧化铝焙烧工艺及设备 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1143880A (pt) * | 1967-06-16 | 1900-01-01 | ||
| DE1909039B2 (de) * | 1969-02-22 | 1973-01-04 | Metallgesellschaft Ag, 6000 Frankfurt | Wirbelschichtkühler |
| DE2524540C2 (de) * | 1975-06-03 | 1986-04-24 | Metallgesellschaft Ag, 6000 Frankfurt | Verfahren zur Durchführung endothermer Prozesse |
| NO791174L (no) * | 1978-04-20 | 1979-10-23 | Smidth & Co As F L | Fremgangsmaate for fremstilling av vannfri aluminiumoksyd |
| GB2019369B (en) * | 1978-04-20 | 1982-12-01 | Smidth & Co As F L | Production of anhydrous alumina |
| DE3405298A1 (de) * | 1984-02-15 | 1985-09-05 | Klöckner-Humboldt-Deutz AG, 5000 Köln | Anlage und verfahren zum kontinuierlichen kalzinieren von aluminiumhydroxid |
| US4585645A (en) * | 1985-04-03 | 1986-04-29 | Aluminum Company Of America | Alpha alumina production in a steam-fluidized reactor |
-
1995
- 1995-11-14 DE DE19542309A patent/DE19542309A1/de not_active Withdrawn
-
1996
- 1996-02-11 UA UA98063070A patent/UA48201C2/uk unknown
- 1996-04-03 IN IN608CA1996 patent/IN186958B/en unknown
- 1996-11-02 BR BR9611386-3A patent/BR9611386A/pt not_active IP Right Cessation
- 1996-11-02 ES ES96937331T patent/ES2169270T3/es not_active Expired - Lifetime
- 1996-11-02 WO PCT/EP1996/004764 patent/WO1997018165A1/de not_active Ceased
- 1996-11-02 US US09/068,758 patent/US6015539A/en not_active Expired - Fee Related
- 1996-11-02 AU AU74970/96A patent/AU728011B2/en not_active Expired
- 1996-11-02 EP EP96937331A patent/EP0861208B1/de not_active Expired - Lifetime
- 1996-11-02 DK DK96937331T patent/DK0861208T3/da active
- 1996-11-02 SK SK642-98A patent/SK284481B6/sk not_active IP Right Cessation
- 1996-11-02 CN CN96199087A patent/CN1085623C/zh not_active Expired - Lifetime
- 1996-11-02 JP JP09518539A patent/JP2000512255A/ja not_active Ceased
- 1996-11-02 AT AT96937331T patent/ATE209607T1/de not_active IP Right Cessation
- 1996-11-02 EA EA199800451A patent/EA000516B1/ru not_active IP Right Cessation
- 1996-11-02 CA CA002235706A patent/CA2235706C/en not_active Expired - Fee Related
- 1996-11-02 DE DE59608329T patent/DE59608329D1/de not_active Expired - Fee Related
- 1996-11-14 ID IDP963326A patent/ID17589A/id unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CA2235706C (en) | 2004-08-31 |
| DE59608329D1 (de) | 2002-01-10 |
| IN186958B (pt) | 2001-12-22 |
| JP2000512255A (ja) | 2000-09-19 |
| EP0861208B1 (de) | 2001-11-28 |
| SK64298A3 (en) | 1999-07-12 |
| DK0861208T3 (da) | 2002-03-25 |
| ID17589A (id) | 1998-01-15 |
| EA000516B1 (ru) | 1999-10-28 |
| ATE209607T1 (de) | 2001-12-15 |
| ES2169270T3 (es) | 2002-07-01 |
| AU728011B2 (en) | 2001-01-04 |
| UA48201C2 (uk) | 2002-08-15 |
| DE19542309A1 (de) | 1997-05-15 |
| EA199800451A1 (ru) | 1998-10-29 |
| CN1085623C (zh) | 2002-05-29 |
| CA2235706A1 (en) | 1997-05-22 |
| AU7497096A (en) | 1997-06-05 |
| SK284481B6 (sk) | 2005-04-01 |
| WO1997018165A1 (de) | 1997-05-22 |
| CN1204302A (zh) | 1999-01-06 |
| EP0861208A1 (de) | 1998-09-02 |
| US6015539A (en) | 2000-01-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FF | Decision: intention to grant | ||
| FG9A | Patent or certificate of addition granted | ||
| B21A | Patent or certificate of addition expired [chapter 21.1 patent gazette] |