发明名称 |
PROCESS OF SEPARATING HYDROGEN FLUORIDE FROM GASES |
摘要 |
<p>1474215 Electrostatic precipitators VEREINIGTE ALUMINIUM WERKE AG and METALLGESELLSCHAFT AG 15 Aug 1974 [15 Sept 1974] 36039/74 Addition to 1341313 Heading B2J [Also in Divisions Cl and C7] Hydrogen fluoride is removed from a gas stream, e.g. the exhaust gases from the electrolytic production of aluminium using molten flux, by introduction of the stream of gas as the fluidising gas into a fluid bed reactor 2 containing a solid absorbent for the HF, e.g. alumina and/or sodium aluminate, so that the solids form an expanded fluid bed with a solids concentration which decreases upwardly in the bed and from which the HF absorbing solids are discharged upwardly and withdrawn through the suspension outlet 3 and fed to an electrostatic preciptator 4 to separate the solids which are collected in the bins 5. Optionally part of the separated solids can be recycled to the fluidised bed 2 through the conduit 9. The entrained solids may also be further separated in the precipitator into fractions differing in particle size wherein the precipitator is provided with a plurality of fields and dust collecting bins.</p> |
申请公布号 |
CA1030728(A) |
申请公布日期 |
1978.05.09 |
申请号 |
CA19740206308 |
申请日期 |
1974.08.02 |
申请人 |
METALLGESELLSCHAFT AKTIENGESELLSCHAFT;VEREINIGTE ALUMINIUM-WERKE AG. |
发明人 |
WECKESSER, ERNST;SPARWALD, VOLKER;REH, LOTHAR;BOHM, EBERHARD;GRAF, ROLF |
分类号 |
B01D53/02;B01D53/12;B01D53/14;B01D53/68;B01J8/24;C01B7/19;C01F7/50 |
主分类号 |
B01D53/02 |
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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