发明名称 |
Fluidized bed method and plant for the heat treatment of solids containing titanium |
摘要 |
The present invention relates to a method and a plant for the heat treatment of solids containing titanium and possibly further metal oxides, in which fine-grained solids are heated to a temperature of 700 to 950° C. in a fluidized bed reactor ( 1 ). To improve the energy utilization, it is proposed to introduce a first gas or gas mixture from below through a gas supply tube ( 3 ) into a mixing chamber ( 7 ) of the reactor ( 1 ), the gas supply tube ( 3 ) being at least partly surrounded by a stationary annular fluidized bed ( 10 ) which is fluidized by supplying fluidizing gas. The gas velocities of the first gas or gas mixture as well as of the fluidizing gas for the annular fluidized bed ( 10 ) are adjusted such that the particle Froude numbers in the gas supply tube ( 3 ) are between 1 and 100, in the annular fluidized bed ( 10 ) between 0.02 and 2 and in the mixing chamber ( 7 ) between 0.3 and 30.
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申请公布号 |
US2006162500(A1) |
申请公布日期 |
2006.07.27 |
申请号 |
US20030540376 |
申请日期 |
2003.12.10 |
申请人 |
NUBER DIRK;STRODER MICHAEL;STOCKHAUSEN WERNER;BEYZAVI ALI-NAGHI;FORMANEK LOTHAR;HIRSCH MARTIN |
发明人 |
NUBER DIRK;STRODER MICHAEL;STOCKHAUSEN WERNER;BEYZAVI ALI-NAGHI;FORMANEK LOTHAR;HIRSCH MARTIN |
分类号 |
C22B34/12;B01J8/18;B01J8/26;C21B13/00;C22B1/10;C22B5/14;F27B15/02;F27B15/10 |
主分类号 |
C22B34/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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