发明名称 |
PROCEDIMENTO PARA A EXTRACCAO DE SUBSTANCIAS SOLIDAS A PARTIR DE SOLUCOES |
摘要 |
The invention relates to a method for extracting solid organic substances from solutions in which they are present together with mineral salts and/or electrolytes. Said method comprises the following steps: (a) separation of the solution into a permeate enriched with mineral salts and/or electrolytes and into a retentate which is depleted of mineral salts and/or electrolytes and oversaturated with the organic substance(s) to be extracted, using one or more pressure-driven membrane separation stages which are permeable to at least a part of the salts and/or electrolytes and in which the dwell time of the solution is less than the induction time required for triggering crystallisation; (b) separation of the organic substance(s) in a precipitation stage and (c) separation of the solid organic substance(s). |
申请公布号 |
PT1113861(E) |
申请公布日期 |
2004.05.31 |
申请号 |
PT19990946037T |
申请日期 |
1999.08.26 |
申请人 |
FRAUNHOFER-GES. ZUR FOR. DER ANGE. FORSCHHUNG E.V.;WESTFALIA SEPARATOR AG |
发明人 |
ROLF KUMMEL;JOSEF ROBERT;JOCHEN HAMATSCHEK |
分类号 |
A23L1/304 |
主分类号 |
A23L1/304 |
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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