C - Chemistry – Metallurgy – 25 – B
Patent
C - Chemistry, Metallurgy
25
B
C25B 7/00 (2006.01) B01D 61/42 (2006.01) C08B 37/00 (2006.01)
Patent
CA 2047978
The preparation of the calcium salt of heparin or of products derived from heparin such as the fractions of low molecular weight obtained by extraction or by partial depolymerisation is disclosed. The process according to the invention is characterised in that the calcium salt of heparin or of its derivatives is prepared by means of ion exchange membranes which, when subjected to an electric field, make it possible to carry out in a single step an exchange of cations on heparin sodium.
Branellec Jean-Francois
Cornet Philippe
Dargelosse Martine
Langlois Claude
Orozco Jose-Luis
Robic
Sanofi
Sanofi-Aventis
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