Process for the recovery of pure hellebrin

Details Process for the recovery of pure hellebrin Process for the recovery of pure hellebrin

C - Chemistry, Metallurgy

07

J

260/4

C07J 63/00 (2006.01) C07J 19/00 (2006.01)

Patent

CA 1202298

ABSTRACT OF THE DISCLOSURE There is provided a process for the recovery of pure hellebrin which comprises extracting a defatted hellebrin extract dissolved in a water-alkanol mixture or water-acetone mixture with a mixture of a lower alkanol or acetone and di-, tri-, or tetrachloromethane (or dichloroethane) evaporating the extraction agent in a vacuum and then heating with ethanol until the deposition of the first hellebrin crystals begins.

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