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1 INTRODUCTION Musk ketone and musk xylene are important syn- thetic nitro-musks. They are high boiling substances and subject to decomposition under the condition of heat and light. When they are melted, the liquid mix- ture is very sticky, which lead to high resistance to heat and mass transfer and difficulty in solidification. As a result, it is reasonable to employ solution crys- tallization to separate and purify musk mixture. As the basis of solution crystallization, the solubility … 相似文献
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论述了到目前为止反映在麝香酮结构上的混乱。应用一种全新概念提出了一种全新的结构(11)。并提出了包括其它大环酮在内的理论性预言五则。 相似文献
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概况 麝香酮(9-顺式-环十七烯酮)是香精、香料的重要原料。以前报道麝香酮的合成方法,步骤长、产率低。例如,9,10-二羟基-十八烷二酸为原料,经七步反应, 相似文献
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To evaluate the effect of two liquid phase on the separation of musks mixture, the phase equilibria of musk ketone musk xylene dimethyl sulfoxide heptane system were studied for the first time. The whole and every part of the phase equilibrium for the quaternary system were shown by three-dimensional phase diagrams, the liquid-liquid equilibria, solid-liquid equilibria and solid-liquid-liquid equilibria of the quaternary system were also shown. As a result, the compositions of musks in the equilibrium liquid phases were different from those in the feed, that is, musk ketone was enriched in dimethyl sulfoxide phase while musk xylene was enriched in heptane phase. So these equilibrium liquid phases were useful in separating musk ketone and musk xylene. On the basis of these results, a new process “two liquid phase extractive crystallization” was proposed to separate the eutectics of musk ketone and musk xylene. 相似文献
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