Process of producing crystalline nitrilo tris-(methylene phospho

Details Process of producing crystalline nitrilo tris-(methylene phospho Process of producing crystalline nitrilo tris-(methylene phospho

1971-03-18

1977-02-22

Evans, Joseph E.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07F 938

Patent

active

040092046

ABSTRACT:
Pure, crystalline nitrilo tris-(methylene phosphonic acid) is produced in a high yield by reacting lower aliphatic acid amides with formaldehyde and phosphorus trihalogenide, preferably phosphorus trichloride.

REFERENCES:
patent: 2338987 (1944-01-01), Wetzol
patent: 3288846 (1966-11-01), Isani et al.
patent: 3476799 (1969-11-01), Vogt et al.
patent: 3549728 (1970-12-01), Balde et al.
Cline, "Manufacture of Urea," (1951), pp. 35-42.

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