Abstract: A graphene ternary composite direct current-carrying plate includes an anode plate and a cathode plate. Placed between the anode plate and the cathode plate is a graphene composite layer. The graphene composite layer is doped with a certain proportion of graphene in the aluminum mesh frame. The plate of the invention has small thickness, low ohmic voltage drop, good porosity, and low current loss. This reduces the electrolysis power consumption, thereby significantly reducing the product cost and effectively promoting the industrial production market of the sodium chlorate electrolysis method. The plate also reduces energy consumption and is environmentally friendly.

Abstract: The patent provides a method for preparing titanium-based active electrodes with high stability coating layer, which belongs to the field of electrochemistry. The patent describes the active electrode is used titanium as the substrate, multi-metal oxides as the activated catalytic layer, and dense oxides as the protective layer. The multi-metal catalytic layer is formed by pyrolysis method to form the main body of titanium-based catalytic layer, and the dense oxide protective layer is combined with Sol-gel method and electrochemical deposition method to form a dense protective layer of titanium base. It can be widely used in chlor-alkali industry, paper industry, sewage treatment and other fields.

Abstract: A method for preparing high-purity chlorine dioxide by using methanol and hydrogen peroxide as a reducing agent includes injecting concentrated sulfuric acid and sodium chlorate solution into a generator system to form a reaction mother liquid. The method also includes adding the reducing agent into the reaction mother liquid to produce chlorine dioxide gas and by-product sodium sulfate. The method further includes cooling and absorbing the produced chlorine dioxide gas by 4-10° C. chilled water to obtain a chlorine dioxide aqueous solution. The by-product sodium sulfate is filtered, washed, and recycled.

Abstract: The invention discloses a method for preparing high-purity chlorine dioxide by using methanol and hydrogen peroxide as reducing agent. The method comprises: concentrated sulfuric acid and sodium chlorate solution are injected into the generator to form the reaction mother liquid. The reaction mother liquid shall be maintained a certain acidity, temperature and sodium chlorate content, and then it is reacted with the reducing agent (methanol and hydrogen peroxide) to produce chlorine dioxide gas and by-product sodium sulfate. The chlorine dioxide gas is cooled and absorbed by low temperature chilled water to obtain an aqueous solution of chlorine dioxide, and by-products are recycled.