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公开(公告)号：GB2478240B
公开(公告)日：2014-04-30
申请号：GB201109904
申请日：2009-12-18
Applicant: OUTOTEC OYJ
Inventor： MISSALLA MICHAEL , HILTUNEN PEKKA , BLIGH ROGER , SCHMIDBAUER ERWIN , KLETT CORNELIS , SCHNEIDER GUNTER
Abstract: A process for producing metal oxide from a metal salt includes supplying a first part of the metal salt to a hydrate drier so as to indirectly heat the first part of the metal salt in the hydrate drier using a heat transfer medium from a first stage of a multi-stage indirect cooler so as to dry the first part of the metal salt in the hydrate drier and so as to control a waste gas temperature of the process. A second part of the metal salt is guided as a partial stream past the hydrate drier. The metal salt is preheated in a first preheating stage and precalcined in a second preheating stage. The metal salt and a fluidizing gas having a temperature of 150° C. or less are supplied to a fluidized bed reactor so as to calcine the metal salt to form a metal oxide product. The metal oxide product is cooled in at least one suspension heat exchanger and then in the multi-stage indirect cooler.
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公开(公告)号：GB2478671B
公开(公告)日：2014-04-09
申请号：GB201109905
申请日：2010-01-14
Applicant: OUTOTEC OYJ
Inventor： MISSALLA MICHAEL , SCHNEIDER GUNTER , JARZEMBOWSKI JAN , SCHMIDBAUER ERWIN
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公开(公告)号：EA016569B1
公开(公告)日：2012-05-30
申请号：EA201000417
申请日：2008-07-10
Applicant: OUTOTEC OYJ
Inventor： HILTUNEN PEKKA , SCHNEIDER GUNTER , MISSALLA MICHAEL
Abstract: Визобретенииприпроизводствеоксидаалюминияизгидроксидаалюминияуказанныйгидроксидалюминиякальцинируютв реакторес псевдоожиженнымслоемс использованиемпредварительногонагрева, поменьшеймерев однойступенипредварительногонагрева, изатемнаправляютпоменьшеймерев одинохладительс псевдоожиженнымслоем, вкоторомкальцинированныетвердыечастицыматериалаохлаждаютс помощьюпсевдоожижающеговоздуха, приэтомпсевдоожижающийвоздухотводятизохладителяи вводятв реакторс псевдоожиженнымслоемв качествевторичноговоздуха. Длятогочтобыприработеустановкис частичнойнагрузкойминимизироватьудельноепотреблениеэнергии, потоквторичноговоздухаразделяют, байпасныйпотокнаправляютв обходреакторас псевдоожиженнымслоеми вводятв трубопроводдляподачитвердыхчастиц.
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公开(公告)号：AU2009240266A1
公开(公告)日：2009-10-29
申请号：AU2009240266
申请日：2009-04-20
Applicant: OUTOTEC OYJ
Inventor： SCHNEIDER GUNTER , MISSALLA MICHAEL , GASAFI EDGAR
Abstract: A process for heat treatment of fine-grained mineral solids includes passing fine-grained mineral solids through a flash reactor so as to contact the fine-grained mineral solids with hot gases in the flash reactor at a temperature of 450 to 1500° C. so as to obtain hot solids. The hot solids arc passed through a residence time reactor at a temperature of 500 to 890° C. The hot solids are withdrawn from the residence time reactor after a residence time of 1 to 600 minutes. A waste gas of the residence time reactor is recirculated to at least one of the flash reactor and a preheating stage.
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公开(公告)号：AU2009337948B2
公开(公告)日：2014-05-15
申请号：AU2009337948
申请日：2009-12-18
Applicant: OUTOTEC OYJ
Inventor： MISSALLA MICHAEL , HILTUNEN PEKKA , BLIGH ROGER , SCHMIDBAUER ERWIN , KLETT CORNELIS , SCHNEIDER GUNTER
Abstract: The present invention relates to the production of metal oxide from metal salts, in particular from aluminum hydroxide, wherein the metal salt is preheated in a first preheating stage, precalcined in a second preheating stage and calcined to metal oxide in a fluidized-bed reactor, and wherein the product obtained then is cooled in at least one suspension heat exchanger and subsequently in a multi- stage indirect cooler. To reduce the energy demand of a calcining plant, fluidizing air is supplied to the reactor with a temperature of up to 150 °C, and before entering the first preheating stage the metal salt is at least partly supplied to a hydrate drier in which it is indirectly heated with heat transfer medium from the first stage of the indirect cooler and dried.
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Patent Agency Ranking
公开(公告)号：AU2011260345B2
公开(公告)日：2014-03-13
申请号：AU2011260345
申请日：2011-05-30
Applicant: OUTOTEC OYJ
Inventor： ANASTASIJEVIC NIKOLA , SCHNEIDER GUNTER
Abstract: This invention relates to lowering the carbon content in ash, wherein the ash is introduced into a reactor with a carbon content of 1 to 20 wt-% and is burnt there at temperatures of 700 to 1 100°C. During the combustion, microwave radiation is fed into the reactor and the energy released during the combustion is at least partly recovered.
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公开(公告)号：UA101804C2
公开(公告)日：2013-05-13
申请号：UAA200910578
申请日：2008-03-18
Applicant: OUTOTEC OYJ
Inventor： MISSALLA MICHAEL , SCHNEIDER GUNTER , KLETT CORNELIS , SCHMIDBAUER ERWIN
Abstract: Изобретениеотноситсяк способуполученияоксидаалюминияизгидроксидаалюминия, вкоторомгидроксидалюминиясушати заранеенагреваютв первомподогревателе (2) притемпературеот 100 до 200 °C, заранеепрокаливаютвовторомподогревателе (5) притемпературеот 300 до 400 °C изатемпрокаливаютв реакторе (8) притемпературеот 850 до 1100 °C, получаяоксидалюминия. Послепредварительногопрокаливаниявовторомподогревателе (5) частьпотокагидроксидаалюминияотводятв сторонуи подаютв бак-смеситель (14), вкоторомонсмешиваетсяс оксидомалюминия, выводящимсяизреактора (8).
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公开(公告)号：AU2011328390A1
公开(公告)日：2013-05-02
申请号：AU2011328390
申请日：2011-10-27
Applicant: OUTOTEC OYJ
Inventor： MISSALLA MICHAEL , BLIGH ROGER , SCHNEIDER GUNTER
IPC: C01F7/44
Abstract: In the production of alumina from aluminum hydroxide, a) aluminum hydroxide is purified with washing water in a hydrate filter, b) the purified aluminum hydroxide is at least partly dried and/or precalcined in at least one preheating stage, c) this pretreated aluminum hydroxide is calcined in a fluidized-bed reactor to obtain alumina, d) the alumina obtained is cooled in at least one indirect cooling stage using water as coolant, e) the steam (D) obtained from the cooling water due to the heat transfer in the indirect cooling stage is separated from the liquid fraction (A) of the exit stream from the cooling stage (E), f) and at least one partial stream (T) of the liquid fraction (A) is guided to the hydrate filter and used there as washing water for purifying the aluminum hydroxide in the hydrate filter. In accordance with the invention, an additional water stream (Z) is added to the partial stream (T) of the liquid fraction (A) guided to the hydrate filter and the mixing ratio of the two streams (T, Z) is adjusted such that the washing water stream (W) resulting therefrom has a constant maximum temperature value below the boiling point of water and the volume flow required by the hydrate filter as washing water.
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9.发明专利
公开(公告)号：UA100498C2
公开(公告)日：2013-01-10
申请号：UAA200907651
申请日：2007-12-07
Applicant: OUTOTEC OYJ
Inventor： STRODER MICHAEL , STOCKHAUSEN WERNER , MISSALLA MICHAEL , SCHNEIDER GUNTER
Abstract: Настоящеееизобретениеотноситсяк способупроизводства, например, обезвоженногооксидаметаллаизгидроксидаметалла, вовремякоторогогидроксидметалла, покрайнеймере, частичнообезвоживаюти подогреваютпередвведениемв реакторс псевдоожиженнымслоем, вкоторомгидроксидметалланагреваютдотемпературыв интервалепримерноот 650 допримерно 1250 °C засчетсжиганиятоплива, ив результатеобразуетсяоксидметалла, приэтомв реакторс псевдоожиженнымслоемподаютпервичныйвоздухи/иливторичныйвоздух, обогащаемыйкислородом. Дляобеспечениявесьманизкихвыбросовпылии незначительногоразрушениязеренкислородилиобогащенныйкислородомгазвводятв реакторс псевдоожиженнымслоемс низкойскоростью.
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公开(公告)号：GB2471256B
公开(公告)日：2012-08-01
申请号：GB201018472
申请日：2009-04-20
Applicant: OUTOTEC OYJ
Inventor： GASAFI EDGAR , SCHNEIDER GUNTER , MISSALLA MICHAEL
Abstract: A process for heat treatment of fine-grained mineral solids includes passing fine-grained mineral solids through a flash reactor so as to contact the fine-grained mineral solids with hot gases in the flash reactor at a temperature of 450 to 1500° C. so as to obtain hot solids. The hot solids arc passed through a residence time reactor at a temperature of 500 to 890° C. The hot solids are withdrawn from the residence time reactor after a residence time of 1 to 600 minutes. A waste gas of the residence time reactor is recirculated to at least one of the flash reactor and a preheating stage.
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