Process for crystallizing 2,2-bis[3,5-dibromo-4-(2-hydroxyethoxy

Details Process for crystallizing 2,2-bis[3,5-dibromo-4-(2-hydroxyethoxy Process for crystallizing 2,2-bis[3,5-dibromo-4-(2-hydroxyethoxy

1975-03-28

1977-01-11

Helfin, Bernard

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07C 4112

Patent

active

040026884

ABSTRACT:
The present process relates to the production of crystalline 2,2-bis[3,5-dibromo-4-(2-hydroxyethoxy)phenyl] propane by cooling the molten material with shear. An especially useful aspect of this invention involves the continuous crystallization of 2,2-bis[3,5-dibromo-4-(2-hydroxyethoxy)phenyl] propane employing a scraped surface heat exchanger to achieve the desired rate of cooling and shear.

REFERENCES:
patent: 3794617 (1974-02-01), Mains et al.
Weissberger, Separation & Purification, Part I (1956), pp. 482-485.
Siegel, Process Machinery, 2nd ed. (1953), pp. 437-439.

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