Abstract:
PROBLEM TO BE SOLVED: To provide a solid potassium ion conductor having β"-Al 2 O 3 structure, its manufacturing method, and a manufacturing method of potassium using the potassium ion conductor. SOLUTION: The solid potassium ion conductor is obtained by embedding an polycrystalline alkali metal β"-Al 2 O 3 moulding into an oxide powder containing potassium and aluminum, heating it to at least 1,100 °C at least at 100°C/Hr and, further to 1,300°C, and after maintaining for at least one hour, cooling it. The potassium metal is obtained by using potassium amalgam as a material, and by producing by electrolysis by using an anode 16 containing the potassium amalgam and a cathode 17 made of a liquid potassium metal filled inside the solid electrolyte tube 1 made of the solid potassium ion conductor, and by leading into a container 20 in an inactive atmosphere filled with paraffin, and by solidifying in a shape of a globe 23. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
The invention relates to methods for storing an acetylene-containing gas in a porous metal-organic framework material, said metal-organic framework material containing at least one, at least bidentate compound that is coordinately bound to at least one metal ion. The method according to the invention comprises the step of contacting the acetylene-containing gas with the metal-organic framework material, the metal-organic framework material being copper-free. The invention also relates to a porous metal-organic framework material which contains the acetylene-containing gas and to a corresponding acetylene gas-pressure container and the use thereof.
Abstract:
The invention relates to a method for production of xenon from gas mixtures, containing xenon and krypton as main components, whereby the gas mixture is brought into contact with a porous organometallic framework material and xenon is subsequently obtained by desorption.
Abstract:
A solid polycrystalline potassium ion conductor having a b ''-Al2O3 structure is obtainable by means of ion exchange of the alkali metal ions of a polycrystalline alkali metal b ''-Al2O3 moulding, in which the alkali metal ions are sodium ions or a mixture of sodium and potassium ions and the molar ratio M2O (M = alkali metal) to Al2O3 is 1: x, x being an integer or non-integer number within the range 5 to 11, for potassium ions, the ion exchange being effected by a method wherein neither chloride-containing nor liquid potassium Ion sources are used, the method comprising the steps of: embedding the polycrystalline alkali metal b ''-Al2O3 moulding in an oxidic powder containing potassium and aluminium of a molar K2O: Al2O3 ratio within the range of 1: (x-1) to 1: (x+1), the weight of oxidic powder amounting to at least two times the weight of the moulding; heating the embedded moulding at a rate of at least 100{C per hour to at least 1100{C; and further heating to at least 1300{C, this temperature being maintained for at least one hour prior to cooling. Potassium metal may be obtained, starting from potassium amalgam, by electrolysis using an anode containing potassium amalgam, liquid potassium metal as a cathode and this solid potassium ion conductor as a membrane separating cathode and anode spaces.
Abstract:
A method for producing compounds which are oxidized in an alpha position by electrochemical reaction with alcohol in the presence of an auxiliary electrolyte and catalytic amounts of a metal salt.
Abstract:
A solid polycrystalline potassium ion conductor having a .beta."-Al2O3 structure is obtain- able by means of ion exchange of the alkali metal ions of a polycrystalline alkali metal .beta."-Al2O3 moulding, in which the alkali metal ions are sodium ions or a mixture of sodium and potassium ions and the molar ratio M2O (M = alkali metal) to Al2O3 is 1 : x, x being an integer or non-integer number within the range 5 to 11, for potassium ions, the ion exchange being effected by a method wherein neither chloride-containing nor liquid potassium ion sources are used, the method comprising the steps of: embedding the polycrystalline alkali metal .beta."-Al2O3 moulding in an oxidic powder containing potassium and aluminium of a molar K2O : Al2O3 ratio within the range of 1 : (x- 1) to 1 : (x+1), the weight of oxidic powder amounting to at least two times the weight of the moulding; heating the embedded moulding at a rate of at least 100°C per hour to at least 1100°C; and further heating to at least 1300°C, this temperature being maintained for at least one hour prior to cooling. Potassium metal is obtained, starting from potassium amalgam, by electrolysis using an anode containing potassium amalgam, liquid potassium metal as a cathode and this solid potassium ion conductor as a membrane separating cathode and anode spaces.
Abstract:
The invention relates to an electrolytic cell which comprises an anode compartment containing an aqueous solution of at least one alkali metal salt, and which comprises a cathode compartment and a solid electrolyte by means of which the anode compartment and the cathode compartment are separated from one another. The invention is characterized in that the portion of the surface of the solid electrolyte which is in contact with the anode compartment and/or the portion of the surface of the solid electrolyte which is in contact with the cathode department have/has at least one additional ion-conducting layer.
Abstract:
Hydrogen or methane gas pressure container having a minimum volume of 1 m3 a prescribed maximum filling pressure, has a filter through which oxygen, methane respectively, can flow during uptake. The filter has an adsorbent for adsorbing impurities selected from the group consisting of a higher hydrocarbon, ammonia, an odorous substance, hydrogen sulfide and a mixture of two or more of these substances. The pressure container and the filter comprise porous metal organic frameworks as adsorbent.