Separation of acids

Details Separation of acids Separation of acids

1980-04-03

1981-08-25

Peters, G. O.

Chemistry of inorganic compounds

Nitrogen or compound thereof

Oxygen containing

423321S, 423523, 423531, C01B 2146

Patent

active

042859247

ABSTRACT:
A method for the separation of nitric acid from a mixture of nitric acid with one or more of phosphoric, sulphuric or hydrochloric acids, in which the nitric acid is selectively extracted from a first phase comprising the acid mixture into a second phase by an amine nitrate. The method may conveniently be carried into effect by treating an aqueous mixture of acids with kerosene containing tri-n-octylamine nitrate and a modifyier e.g. decanol following which the excess nitric acid is stripped from the kerosene phase by water or dilute nitric acid.

REFERENCES:
patent: 2971819 (1961-02-01), Antelman
patent: 3367749 (1968-02-01), Koerner
Schmidt, "Amine Extraction", Israel Programme for Sci. Translations, Israel, 1971, pp. 40-68.
Agers, D. W. et al., "Purification of Inorg. Acids by Amine Liq. Ion Exchange Process", Am. Inst. Mining, Metall., & Pet. Engng., Dallas, Texas 1963 (preprint).
Bertocci, U. et al., "J. Inorg. Nucl. Chem.", 1961, pp. 323-332.
Verstegen, J., "J. Inorg. Nucl. Chem.", 1964, pp. 1085-1102.
Baroncelli, F. et al., "J. Inorg. Nucl. Chem.", 1962, pp. 405-413.

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