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Solvent extraction of solids - by percolation through solids bed across which pressure gradient is set up
Solvent extraction of solids - by percolation through solids bed across which pressure gradient is set up
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机译:溶剂萃取固体-通过渗滤通过固体床,在该床上建立压力梯度
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摘要
In extracting raw materials from solids by percolating solvent through a bed of the particulate solid the solvent percolation is accelerated by setting up a pressure gradient across the bed. In a conventional rotary extractor the extraction zone is maintained at a higher pressure than the collection zone for the percolated solvent. This is achieved with a dividing plate between the zones whose edges are sealed and which has narrow openings, which taper upwards towards the extraction zone, for passage of the solvent.
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