发明名称 Method for precipitating finely divided solid particles
摘要 Comprises a) dissolving a compound C in a fluid A to provide a solution A; b) Thermostatization of said solution A to a temperature ranging between -50° C. and 200° C.; c) Adding a fluid B to said solution A until a pressure P is obtained, and is characterized in that said fluid B at a pressure P is miscible with said solution A, and acts as a co-solvent to form a solution AB; and d) Reduce the pressure of said solution AB so as to produce the precipitation of said compound C. The method permits to obtain particles of average size less than 20 mum, generally less than 10 mum, with a narrow distribution ranging between 1 and 100 mum, generally ranging between 1 and 20 mum, and from a solution, and not a mix, that contains the compound to be precipitated.
申请公布号 US2003098517(A1) 申请公布日期 2003.05.29
申请号 US20020111501 申请日期 2002.10.09
申请人 VENTOSA RULL NORA;VECIANA MIRO JAUME;ROVIRA ANGULO CONCEPCION;SALA VERGES SANTIAGO 发明人 VENTOSA RULL NORA;VECIANA MIRO JAUME;ROVIRA ANGULO CONCEPCION;SALA VERGES SANTIAGO
分类号 B01D9/00;(IPC1-7):B29B9/00 主分类号 B01D9/00
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