Source: http://www.google.com/patents/US7662351?ie=ISO-8859-1&dq=6978253
Timestamp: 2014-12-21 19:35:27
Document Index: 420486820

Matched Legal Cases: ['application No. 0', 'application No. 196', 'application No. 19813286', 'application No. 248', 'application No. 2524541', 'application No. 2624302', 'application No. 2805906', 'application No. 3822999', 'application No. 40', 'application No. 41', 'application No. 694', 'application No. 69417103']

Patent US7662351 - Process and plant for producing metal oxide from metal compounds - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inAdvanced Patent SearchPatentsThe present invention relates to a process for producing metal oxide from metal compounds, in particular metal hydroxide or metal carbonate, in which the metal compound is conveyed into a reactor (25) with fluidized bed, heated there to a temperature of 650 15 to 1150� C. by combustion of fuel, and...http://www.google.com/patents/US7662351?utm_source=gb-gplus-sharePatent US7662351 - Process and plant for producing metal oxide from metal compoundsAdvanced Patent SearchPublication numberUS7662351 B2Publication typeGrantApplication numberUS 10/540,071PCT numberPCT/EP2003/014213Publication dateFeb 16, 2010Filing dateDec 13, 2003Priority dateDec 23, 2002Fee statusLapsedAlso published asCN1759066A, CN1759066B, DE10260739B3, EP1575871A1, EP1575871B1, US8048380, US20060263292, US20090274589, WO2004056701A1Publication number10540071, 540071, PCT/2003/14213, PCT/EP/2003/014213, PCT/EP/2003/14213, PCT/EP/3/014213, PCT/EP/3/14213, PCT/EP2003/014213, PCT/EP2003/14213, PCT/EP2003014213, PCT/EP200314213, PCT/EP3/014213, PCT/EP3/14213, PCT/EP3014213, PCT/EP314213, US 7662351 B2, US 7662351B2, US-B2-7662351, US7662351 B2, US7662351B2InventorsMartin Hirsch, Werner Stockhausen, Michael Str�derOriginal AssigneeOutotec OyjExport CitationBiBTeX, EndNote, RefManPatent Citations (105), Non-Patent Citations (52), Referenced by (2), Classifications (44), Legal Events (5) External Links: USPTO, USPTO Assignment, EspacenetProcess and plant for producing metal oxide from metal compoundsUS 7662351 B2Abstract The present invention relates to a process for producing metal oxide from metal compounds, in particular metal hydroxide or metal carbonate, in which the metal compound is conveyed into a reactor (25) with fluidized bed, heated there to a temperature of 650 15 to 1150� C. by combustion of fuel, and metal oxide is generated, as well as to a corresponding plant. To improve the utilization of energy, it is proposed to introduce a first gas or gas mixture from below through a gas supply tube (26) into a mixing chamber (20) of the reactor (25), the gas supply tube (26) being at least partly surrounded by a stationary annular fluidized bed (27) which is fluidized by supplying fluidizing gas, and 20 to adjust the gas velocities of the first gas or gas mixture and of the fluidizing gas for the annular fluidized bed (27) such that the Particle-Froude numbers in the gas supply tube (26) lie between 1 and 100, in the annular fluidized bed (27) between 0.02 and 2, and in the mixing chamber (20) between 0.3 and 30.
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