Process for the preparation of glucosamine salts
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United States of America Patent
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Nov 28, 2006
Grant Date -
Jan 20, 2005
app pub date -
Dec 13, 2002
filing date -
Dec 21, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
This invention relates to a process for the preparation of glucosamine sulfate, glucosamine hydroiodide, glucosamine pyruvate, glucosamine phosphate or their mixtures with glucosamine hydrochloride, by electrodialysis. Starting from glucosamine hydrochloride, the exchange of the Cl.sup.- for an anion selected from the group consisting of SO.sub.4 .sup.-2, I.sup.-, CH.sub.3COCOO.sup.- and PO.sub.4.sup.-3 takes place during the process. The electrodialyser comprises a cathode, anode, and means of separation composed of anion exchange membranes, cation exchange membranes, bipolar membranes or by other suitable means of separation. This invention also relates to a glycosamine sulphate containing chlorides obtainable by the process, and its therapeutic use.
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