发明名称 Device for separating and purifying materials by melt crystallization under high pressure.
摘要 In the process for separating or purifying substances by crystallisation from melts or highly concentrated solutions under elevated pressures, gas is dissolved in the crystallising melt which outgases again after crystallisation in the course of a pressure reduction. As a result, impurities which are still adhering or included are removed.
申请公布号 EP0621065(A1) 申请公布日期 1994.10.26
申请号 EP19940105875 申请日期 1994.04.15
申请人 HOECHST AKTIENGESELLSCHAFT 发明人 STEINER, RUDOLF PROF. DR.;KOENIG, AXEL DR.;RITTNER, SIEGBERT DR.
分类号 B01D9/02;B01D9/00;C07C7/14;C07C17/392 主分类号 B01D9/02
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