Title:
【発明の名称】アミノホスホン酸類の非-アルカリ性精製
Document Type and Number:
Japanese Patent JPH09504545
Kind Code:
A
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.
Inventors:
Berinka, Benjamin A., Junior
Coffrin, Daniel Jay
Coffrin, Daniel Jay
Application Number:
JP51319894A
Publication Date:
May 06, 1997
Filing Date:
September 15, 1994
Export Citation:
Assignee:
Cytogen Corporation
International Classes:
C07F9/02; C07D255/02; C07F9/38; C07F9/6524; (IPC1-7): C07D255/02
Attorney, Agent or Firm:
Kyozo Yuasa (6 people outside)