Abstract: The present invention relates to a system and process for the accumulation of electrical energy, the system containing an electrochemical reactor comprising: an electrode compartment comprising molecular hydrogen, an electrode compartment comprising a liquid phase (a), an electrode compartment comprising a liquid phase (b), a catalytic surface comprising an electrocatalyst for the oxidation reaction of hydrogen, a catalytic surface comprising an electrocatalyst for the reduction reaction of water and an ion exchange membrane, wherein electrode compartment and electrode compartment are separated from one another by the catalytic surface, electrode compartment is in turn separated from electrode compartment by the ion exchange membrane and the free end of electrode compartment is in contact with the catalytic surface.

Abstract: The present invention relates to a system and process for the accumulation of electrical energy, the system containing an electrochemical reactor comprising: an electrode compartment comprising molecular hydrogen, an electrode compartment comprising a liquid phase (a), an electrode compartment comprising a liquid phase (b), a catalytic surface comprising an electrocatalyst for the oxidation reaction of hydrogen, a catalytic surface comprising an electrocatalyst for the reduction reaction of water and an ion exchange membrane, wherein electrode compartment and electrode compartment are separated from one another by the catalytic surface, electrode compartment is in turn separated from electrode compartment by the ion exchange membrane and the free end of electrode compartment is in contact with the catalytic surface.

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? for an anion selected from the group consisting of SO4 ?2, I?, CH3COCOO? and PO4?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.

Abstract: This invention relates to a process for the preparation of glucosamine hydroiodide, glucosamine pyruvate, glucosamine phosphate or their mixtures with glucosamine hydrochloride, by electrodialysis. Starting from glucosamine hydrochloride, the exchange of the Cl? for an anion selected from the group consisting of SO4 ?2, I?, CH3COCOO? and PO4?3 takes place during the process. The electrodialysis, that 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.

Abstract: The process comprises: (A) obtainment of N-acetyl-cysteine from L-cystine, by means of the following steps:(i) acetylation of L-cystine to produce N-acetyl-cystine;(ii) electroreduction and desalination by electrodialysis of the N-acetyl-cystine thus produced to give N-acetyl-cysteine; or (B) obtainment of N-acetyl-cysteine from L-cystine, by means of the following steps:(i) acetylation and desalination of L-cystine to produce N-acetyl-cystine;(ii) electroreduction of N-acetyl-cystine which may or may not come from the preceding step (i) to produce N-acetyl-cysteine; (C) obtainment of N-acetyl-cysteine from L-cystine by means of the following steps:(i) electroreduction of L-cystine to produce L-cysteine;(ii) acetylation and desalination by electrodialysis of L-cysteine, which may or may not come from the preceding step (i) to produce N-acetyl-cysteine.The N-acetyl-cysteine thus obtained has important uses in the pharmaceutical sector.