FIELDS, DONALD LEE;LEE, LEN FANG;RICHARD, THOROAS JOSE
作者:FIELDS, DONALD LEE、LEE, LEN FANG、RICHARD, THOROAS JOSE
DOI:——
日期:——
WONG, R. Y.;BUNKER, N. S.
作者:WONG, R. Y.、BUNKER, N. S.
DOI:——
日期:——
Manufacture of N-phosphonomethylglycine and its salts
申请人:——
公开号:US05500485A1
公开(公告)日:1996-03-19
N-Phosphonomethylglycine and its salts are manufactured by hydrolysing N-phosphonomethyl-2-oxazolidinone in an aqueous medium and thereafter oxidising the hydrolysis product in an aqueous alkaline medium using an oxygen-containing gas in the presence of an oxidation catalyst, for example a platinum or palladium catalyst optionally containing a promoter such as bismuth.