Preparation of pure bromine from aqueous hydrobromic acid soluti

Details Preparation of pure bromine from aqueous hydrobromic acid soluti Preparation of pure bromine from aqueous hydrobromic acid soluti

1974-09-16

1976-05-25

Rutledge, L. Dewayne

Chemistry of inorganic compounds

Halogen or compound thereof

Elemental halogen

423500, 423505, C01B 700

Patent

active

039594505

ABSTRACT:
Pure liquid bromine is produced directly from an acidic aqueous bromide mother liquor by reacting it with about 80 to about 90% of the amount of chlorine stoichiometrically equivalent to the bromide present in the whole supplied mother liquor and collecting the liquid bromine which separates out of solution; the remaining mother liquor free from liquid bromine is steam distilled in the presence of sufficient chlorine to convert the rest of the bromide to bromine and to condense crude liquid bromine which is purified by washing with sufficient fresh mother liquor. Production capacity is increased by about 20% compared to conventional process in which all the bromine is submitted to steam distillation.

REFERENCES:
patent: 2143223 (1939-01-01), Heath
patent: 2359221 (1944-09-01), Kenaga
patent: 3098716 (1963-07-01), Gradishar
patent: 3107154 (1964-10-01), Shacter

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