2013年2月19日星期二

Various Expert Castor Oil Process

The differential miscibility of castor oil in ethanol and water would be exploited to separate ethanol from water, according to a proposal. Much more energy than could be consumed within the separation procedure would be produced by burning the separated ethanol. In contrast, the separation of a little quantity of ethanol (really an ethanol/water solution poor in ethanol) from water by the standard procedure of distillation demands more energy than may be produced by burning the resulting distillate.

In one version of this process, castor oil could be added to an ethanol/water solution. The ethanol, which is insoluble in water, would mix freely with castor oil. The bottom layer becoming the remainder of the ethanol/water answer somewhat depleted in ethanol, there are much less than 1 percent water in the resulting ethanol/castor-oil phase which would gather because the top layer neem oil extraction plant. The partial pressure of ethanol above the leading layer to become much greater than the partial pressure of either castor oil or water if heating this two-layer mixture to a temperature slightly below the boiling temperature of ethanol. This vapor-phase ethanol might be condensed inside a fairly pure state.


It would not be the case within the presence from the leading castor-oil/ethanol layer even if heating an isolated ethanol/water solution like that within the bottom layer would normally raise the vapor stress of each ethanol and water above the answer because there are two factors: Only slightly upon heating would the amount of water that could dissolve in the top castor-oil/ethanol layer increase. From another point of view, the interface between the two layers and enter the leading layer which ethanol could readily cross. As long as the total mix was kept at a temperature below the boiling temperature of ethanol (thereby preventing agitation of the layers by boiling), the diffusion of water via the castor-oil/ethanol phase could be inhibited oil pressing .

In an alternative version of this concept, the upper castor-oil/ethanol layer could be skimmed off and heated to obtain the ethanol. The castor oil could be returned to an ethanol/water answer to dissolve more ethanol to repeat the process when the ethanol was driven off. This idea is useful to a continuous procedure. Substances apart from castor oil (1 of its components perhaps, or an additional substance) could be utilized within this process or to extract other compounds from other mixtures by using this upper-of-two-phases vaporization method.

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