Abstract: The present invention relates to electrochemistry.An electrode for electrolysis of solutions of electrolytes comprises a substrate of a passivated metal and a coating applied onto this substrate and consisting of a mixture of oxides of ruthenium, titanium and tin at the following proportions thereof, molar percent:______________________________________ ruthenium oxide 15-30 titanium oxide 25-55 tin oxide 30-60.

Abstract: The present invention relates to electrochemistry.An electrode for electrolysis of solutions of electrolytes comprises a support of a metal liable to passivation and a coating, applied onto this support, consisting of a mixture wherein a molar ratio of titanium oxide to the total of oxides of iridium and ruthenium is equal to 1-3:1 at a molar ratio of iridium oxide to ruthenium oxide equal to 0.75-3:1.

Abstract: An electrode for electrochemical processes comprising a graphite base having, in its pores, metals or compounds of metals possessing electrocatalytical properties and being in an electric contact with graphite; an electrochemically inert organic compound insoluble in the electrolyte and having its dropping point and/or the temperature of transition to the gas state exceeding the electrode temperature during electrolysis.A process for producing the electrode of the present invention comprises introduction, into the graphite base pores, successively metals or oxides of metals possessing electrocatalytic properties, and then an electrochemically inert organic compound insoluble in the electrolyte and having its dropping point and/or the temperature of transition to the gas stage exceeding the electrode temperature during electrolysis.

Abstract: The process according to the present invention relates to the production of a concentrated solution of sodium hydroxide and chlorine which comprises electrochemical decomposition of a concentrated solution of sodium chloride with a concentration of from 4.3 to 5.3 mol/l at a temperature within the range of from 90.degree. to 108.degree. C. with the degree of decomposition of sodium chloride of 0.9 to 1.0 and the rate of flow of the solution of sodium chloride through a filtering diaphragm of from 3 to 5 ml/hr per 1 A of the electrolysis current, followed by removing the electrolysis products from the process.The process according to the present invention makes it possible to substantially simplify the known procedure of chlorine manufacture, since it ensures obtaining the final commercial product directly in the electrolysis, thus avoiding the stage of evaporation.

Abstract: An electrode for electrochemical processes comprises an electrically conductive base topped with a layer of active compound composed of, wt %:______________________________________ metal oxide from the platinum group 5-45 at least one metal oxide from the iron and manganese group 19-94.9 boron oxide 0.1-50 ______________________________________A method of fabricating the electrode for electrochemical processes involves deposition of an active compound on an electrically conductive base, the steps comprised in the procedure being application thereto of a solution made up of a thermally decomposed boric compound, at least one thermally decomposed metal compound from the iron and manganese group, and at least one thermally decomposed metal compound from the platinum group, and thermal treatment of said base at a temperature of 360.degree. to 500.degree. C.

Abstract: An electrode comprising a current-conducting base having deposited thereon an active mass of the following composition, in percent by mass:______________________________________ silica 10-90 platinum group metal oxides 5-45 oxides of passivating metals 5-45. ______________________________________The electrode of this invention is useful as anodes in the production of chlorine and caustic soda, as well as in electrolytic processes of producing chlorates and hyperchlorites.

Abstract: An electrode for electrochemical processes comprises an electrically conductive base topped with a layer of active compound composed of, wt %:______________________________________ metal oxide from the platium group 5-45 at least one metal oxide from the iron and manganese group 19-94.9 boron oxide 0.1-50 ______________________________________A method of fabricating the electrode for electrochemical processes involves deposition of an active compound on an electrically conductive base, the steps comprised in the procedure being application thereto of a solution made up of a thermally decomposed boric compound, at least one thermally decomposed metal compound from the iron and manganese group, and at least one thermally decomposed metal compound from the platinum group, and thermal treatment of said base at a temperature of 360.degree. to 500.degree. C.