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 JP2894839
Kind Code:
B2
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 EI JUNIAA
KOFURIN DANIERU JEI
KOFURIN DANIERU JEI
Application Number:
JP51319894A
Publication Date:
May 24, 1999
Filing Date:
September 15, 1994
Export Citation:
Assignee:
SAITOJEN CORP
International Classes:
C07F9/02; C07F9/38; C07D255/02; C07F9/6524; (IPC1-7): C07F9/38; C07F9/6524
Attorney, Agent or Firm:
Kazuo Shamoto (5 outside)