Abstract: This invention relates to a method for producing electrolyzed water. Firstly, HCl is injected into an area for electrolysis provided with a negative and positive electrode plate respectively on its two inner sides and several small-sized electrolyzers. Then water is led into an area for water transport communicating with an electrolytic cell compartment by a retaining valve. Herein, electrolytic reaction occurs in the area for electrolysis. During such process, when the positive and negative electrode plates are electrified, HCl is decomposed to chlorine and hydrogen bubbles, which float up and store into a gas buffer area. For the pressure difference between the electrolytic cell compartment and the cell compartment for water transport, the chlorine and hydrogen in the gas buffer area enter the cell compartment for water transport through the retaining valve and form HClO with high stable concentration, high production efficiency and environmental friendly functions of sterilization and disinfection.

Abstract: A bipolar electrolytic cell can include, as a manifold, a spiral manifold assembly. This spiral manifold assembly will comprise a first outer assembly member, a second outer assembly member and a center assembly member. The overall structure can provide reduced loss of metal or gas and minimal loss of electrical current during an electrolytic process.

Abstract: The invention relates to a construction for ventilation of hydrogen gas comprising at least a first metallic layer (1), sensitive to hydrogen embrittlement, a second (2) metallic layer, and a mesh (4), wherein the first layer (1) is joined to the second layer (2), and said mesh (4), forming venting channels (5) through which channels (5) hydrogen can be vented, is joined to, and in between, said first (1) and second (2) metallic layers. The invention further concerns a method for production thereof.

Abstract: A bipolar membrane, usable for electrodialysis of aqueous electrolytes, comprises two ion exchange membranes, respectively anionic and cationic, juxtaposed along a common surface, wherein, along said common surface, a gel based on hydrated metal sulpate and/or sulphite, including less than 0.01 mol % of indium, cerium, manganese and copper sulphates gel, is formed.

Abstract: A bipolar type ion exchange membrane electrolytic cell comprising an anode compartment frame which comprises an anode plate and an anode back plate arranged in substantially parallel with each other with a spacing, and a conductive anode supporting member arranged between the anode plate and the anode back plate, and a cathode compartment frame which comprises a cathode plate and a cathode back plate arranged in substantially parallel with each other with a spacing, and a conductive cathode supporting member arranged between the cathode plate and the cathode back plate, so that the anode back plate and the cathode back plate are connected back to back to form a partition wall for a bipolar electrolytic cell, wherein(a) the spacing between the anode plate and the anode back plate is wider than the spacing between the cathode plate and the cathode back plate,(b) the anode supporting member and/or the cathode supporting member, is arranged in plurality, and(c) between the adjacent anode and/or cathode supporting

Abstract: Pulping chemicals and hemicellulose are recovered from a starting solution essentially free of lignin but containing a mixture of hemicellulose and caustic by electrolyzing this solution in the anolyte compartment of an electrolytic cell. By electrolysis, the concentration of caustic in the anolyte is decreased and the concentration of caustic in a catholyte of said cell is increased so as to allow recovery of about 60 to about 80 percent of the caustic present in the hemicellulose caustic starting solution.

Abstract: Pulping chemicals and hemicellulose are recovered from a starting solution essentially free of lignin but containing a mixture of hemicellulose and caustic by electrolyzing this solution in the anolyte compartment of an electrolytic cell. By electrolysis, the concentration of caustic in the anolyte is decreased and the concentration of caustic in a catholyte of said cell is increased so as to allow recovery, of about 60 to about 80 percent of the caustic contained in the hemicellulose caustic starting solution.