Publisher's Synopsis
Excerpt from Commercial Feeding Stuffs of the United States: Their Chemical and Microscopical Examination
In the new process, the crushed seeds are heated and while warm are placed in large vertical percolators, and naphtha or some other volatile solvent is poured over them, which is allowed to drain out at the bottom: This process is repeated until nearly all the Oil has been removed. The extracted mass is freed from solvent by letting steam into the percolator and. Driving out the naphtha as a vapor.
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