Method for the manufacture of N-phosphonomethylglycine from N-ph

Details Method for the manufacture of N-phosphonomethylglycine from N-ph Method for the manufacture of N-phosphonomethylglycine from N-ph

1998-05-14

1999-08-24

Geist, Gary

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

Organic compounds

Phosphorus acids or salts thereof

502439, 502418, C07F 922

Patent

active

059426438

ABSTRACT:
An improved process is provided for the manufacture of N-phosphonomethylglycine from N-phophonomethyliminodiacetic acid in the presence of a molecular-oxygen containing gas utilizing a catalytically active carbonaceous char produced at low temperature. The improvement is provided by the use of a carbonaceous char capable of rapidly decomposing hydrogen peroxide in an aqueous solution.

REFERENCES:
patent: 3969398 (1976-07-01), Hershman
patent: 4147719 (1979-04-01), Franz
patent: 4579689 (1986-04-01), Hershman
patent: 4624937 (1986-11-01), Chou
patent: 5179228 (1993-01-01), Ramon

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