Organic compounds -- part of the class 532-570 series – Organic compounds – Phosphorus acids or salts thereof
Patent
1993-11-04
1996-02-27
Dees, Jose G.
Organic compounds -- part of the class 532-570 series
Organic compounds
Phosphorus acids or salts thereof
540474, 562 12, C07F 938
Patent
active
054950422
ABSTRACT:
A process for the purification of aminophosphonic acids under non-alkaline conditions is described. In particular, aminophosphonic acids are slurred in neutral or acidic water, heated to reflux, cooled and then filtered. Product purities approaching 100% are thus obtained.
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Belinka, Jr. Benjamin A.
Coughlin Daniel J.
Cytogen Corporation
Dees Jos,e G.
Frazier Barbara S.
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