3-Oxypropyleneimino-bis-(methylene phosphonic acids) and their s

Details 3-Oxypropyleneimino-bis-(methylene phosphonic acids) and their s 3-Oxypropyleneimino-bis-(methylene phosphonic acids) and their s

1982-07-14

1984-05-22

Evans, J. E.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

75 2, 26050112, C07F 936, C22B 100

Patent

active

044501161

ABSTRACT:
3-Alkoxypropylenimino-bis-(methylene phosphonic acids) of the formula ##STR1## wherein R is straight-chain or branched alkyl or alkenyl each having from 2 to 20, preferably 2 to 10, carbon atoms, aryl, preferably phenyl or aralkyl, preferably benzyl, and X is hydrogen, an alkali metal, alkaline earth metal, ammonium, alkylammonium or polyalkylenepolyammonium ion, preferably a sodium, potassium or ammonium ion, a process for their manufacture and their use as collector in the flotation of non-sulfidic ores.

REFERENCES:
patent: 3298956 (1967-01-01), Irani et al.
patent: 3346488 (1967-10-01), Lyons et al.
patent: 3718603 (1973-02-01), Mitchell
patent: 3723347 (1973-03-01), Mitchell
patent: 3974209 (1976-08-01), Mitchell
patent: 3976589 (1976-08-01), Mitchell
Translation into German attached.

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