Separating ammonium chloride from N-hydrocarbylphosphoric triami

Details Separating ammonium chloride from N-hydrocarbylphosphoric triami Separating ammonium chloride from N-hydrocarbylphosphoric triami

1997-01-21

1999-02-16

O'Sullivan, Peter

Organic compounds -- part of the class 532-570 series

Organic compounds

Amino nitrogen containing

C07F 944, C07F 924, C07F 9201

Patent

active

058722939

ABSTRACT:
A substantially anhydrous mixture which comprises ammonium chloride, the triamide, and ammonia is formed either by adding ammonia to a mixture of the other components or by conducting, in the presence of the ammonia and an organic solvent, a reaction to form the triamide and ammonium chloride as co-products. In all cases the ammonia is present in a sufficient excess amount relative to the ammonium chloride to form a separate liquid phase in which the ammonium chloride solids dissolve. Such separate liquid phase is separated from the remainder of said mixture.

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Kendall, et al; "Addition Compounds of Ammonia With The Ammonium Halides"; J. Amer. Chem. Soc., 1920, vol. 42; pp. 1141-1145.
Yamamoto, et al., "Measurement of Heat of Mixing for Ammonium Chloride + Ammonia System at 25.degree.C"; The Canadian Journal of Chemical Engineering, vol. 66, 1988; pp. 127-130.
Abe, et al., "Regarding The Solubility of Di-And Trichlorides In Liquid Ammonia (Part 3) Solubility Of Ammonium Chloride And Vapor Pressure of Its Solution"; 1935; J. Soc. Chem. Ind. Japan, vol. 38, pp. 1402-1406.

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