Abstract: A process for producing high purity .alpha.-zeranol from a zeralenone containing surface fermentation product is described. One feature of the process entails fractional crystallization from an aqueous acetonitrile solvent of high purity .alpha.-zeranol from a solution containing a mixture of 50 to 60 parts by weight .alpha.-zeranol and 40 to 50 parts by weight .beta.-zeranol.
Type:
Grant
Filed:
May 7, 1992
Date of Patent:
May 11, 1993
Assignee:
C.R.C. Compagnia di Ricera Chimica S.p.A.