Three phase crystallization of bisphenol A

Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal

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260515A, 260521B, 260525, 260612R, 260620, 260621A, 260622R, 260622P, 260649R, 260650R, 260674A, 260674N, 260674SE, 260675, C07C 3722

Patent

active

040790878

ABSTRACT:
A process for purifying a crude crystalline or crystallizable water-immiscible aromatic compound contaminated with one or more related congeneric impurities which cannot be readily separated by distillation, said process comprising:

REFERENCES:
patent: 1978949 (1934-10-01), Kohn et al.
patent: 2959622 (1960-11-01), Grimme et al.
patent: 3383425 (1968-05-01), Mansfield
patent: 3535389 (1970-10-01), De Jong

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