3-alkoxypropylenimino-bis-(methylene phosphonic acids) and...

B - Operations – Transporting – 03 – D

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361/6, 260/501.1

B03D 1/00 (2006.01) B03D 1/014 (2006.01) C07F 9/38 (2006.01)

Patent

CA 1189088

Abstract of the disclosure: 3-Alkoxypropylenimino-bis-(methylene phosphonic acids) of the formula Image 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.

407625

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