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 ever...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.展开更多
The ternary phase diagrams of musk ketone, musk xylene and various solvent were obtained by calcu- lations. Moreover, the double saturated lines were found to be curve for the first time. The methods to separate eutec...The ternary phase diagrams of musk ketone, musk xylene and various solvent were obtained by calcu- lations. Moreover, the double saturated lines were found to be curve for the first time. The methods to separate eutectic mixtures of musks by solution crystallization were suggested on the basis of these phase diagrams. A new process was proposed to get musk ketone and musk xylene from the eutectics by adding acetonitrile and heptane in turn, which was verified by experiments. Musk xylene with purity of 97.50% and musk ketone with purity of 98.10% were obtained.展开更多
文摘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.
文摘The ternary phase diagrams of musk ketone, musk xylene and various solvent were obtained by calcu- lations. Moreover, the double saturated lines were found to be curve for the first time. The methods to separate eutectic mixtures of musks by solution crystallization were suggested on the basis of these phase diagrams. A new process was proposed to get musk ketone and musk xylene from the eutectics by adding acetonitrile and heptane in turn, which was verified by experiments. Musk xylene with purity of 97.50% and musk ketone with purity of 98.10% were obtained.
