摘要:
This invention relates to a method for extracting hydrogen isotopes from a liquid Pb-17Li eutectic in a fusion reactor and to an extractor implementing this method. According to the invention the eutectic is made to flow along a first side of a wall made from a ceramic composite material essentially composed of silicon carbide fibres and a silicon carbide matrix, called SiC f /SiC, and an inert gas is made to sweep the opposite side of this wall for collecting the hydrogen isotopes having permeated through the wall.
摘要:
There are provided a ceramic filter containing at least one functional material, a method of manufacturing the ceramic filter, a ceramic filter whose surface through which a liquid to be purified flows in is closest and the average particle size of the filter continuously increases toward the interior thereof with costs such as material cost and the like being low, a method of manufacturing the ceramic filter, a extrusion molding die used to manufacture the ceramic filters and an extrusion molding apparatus using the die. In the ceramic filer containing the functional material and the porous ceramic filter, the average particle size of the fine particles forming the filters continuously increases from at least one surface of the filters toward the interior thereof. A material compound containing material fine particles and a binder as well as the functional material when necessary are formed to the ceramic filter. At the time, molding is executed while applying ultrasonic vibration to at least one surface of a molded product or closely pressing it. To manufacture the above ceramic filters, ultrasonic vibrators and a close press means are disposed to at least a portion of an extrusion molding die.
摘要:
A getter-filter composite membrane element, comprising a sinterable getter material and a sinterable metal filter material, the composite element defining a matrix of substantially interconnected pores. Membrane elements may be comprised of at least three alternating layers of a first sinterable getter material layer and a second sinterable metal filter material layer, the first getter layer being located between the second filter layers, the second layers acting to hold the getter layer, and to retain the getter particles. Also disclosed is a method of making the getter-filter element.
摘要:
A filter membrane and a process for making the filter membrane are provided. The filter membrane comprises a metal substrate having a filtering layer thereon comprising sintered ultra-fine particles of metal or ceramic compounds. The filtering layer preferably has an average pore size of from about 30 nanometers to about 200 nanometers. The filter membranes can withstand pressure drops of up to about 0.6 MPa and are useful for a variety of filtering applications.
摘要:
In order to produce ceramic hollow fibres, in particular hollow fibre membranes for microfiltration, ultrafiltration and gas separation, a paste is made by filling a polymer binder system with a ceramic powder, said paste is processed by extruding through a spinneret to give hollow fibres, the binder system is removed with the aid of thermal diffusion and the powder particles are sintered to each other.
摘要:
The present invention relates to surface catalyzed ion transport membranes which demonstrate superior oxygen flux. The membranes comprise a dense multicomponent metallic oxide layer having a first surface and a second surface wherein the first surface is coated with a catalyst such as a metal or an oxide of a metal selected from Groups II, V, VI, VII, VIII, IX, X, XI, XV and the F Block lanthanides of the Periodic Table of the Elements. One or more porous layers formed from a mixed conducting multicomponent metallic oxide or a material which is not mixed conducting under process operating conditions may be formed contiguous to the second surface of the dense layer. The claimed membranes are capable of separating oxygen from oxygen-containing gaseous mixtures.
摘要:
The present invention relates to surface catalyzed ion transport membranes which demonstrate superior oxygen flux. The membranes comprise a dense multicomponent metallic oxide layer having a first surface and a second surface wherein the first surface is coated with a catalyst such as a metal or an oxide of a metal selected from Groups II, V, VI, VII, VIII, IX, X, XI, XV and the F Block lanthanides of the Periodic Table of the Elements. One or more porous layers formed from a mixed conducting multicomponent metallic oxide or a material which is not mixed conducting under process operating conditions may be formed contiguous to the second surface of the dense layer. The claimed membranes are capable of separating oxygen from oxygen-containing gaseous mixtures.
摘要:
The present invention relates to surface catalyzed ion transport membranes which demonstrate superior oxygen flux. The membranes comprise a porous mixed conducting multicomponent metallic oxide layer having a first surface onto which a catalyst is deposited and a second surface which is contiguous with a dense mixed conducting multicomponent metallic oxide layer. Suitable catalysts to be deposited onto the porous mixed conducting layer include one or more metals or oxides of metals selected from Groups II, V, VI, VII, VIII, IX, X, XI, XV and the F Block lanthanides of the Periodic Table of the Elements. The claimed membranes are capable of separating oxygen from oxygen-containing gaseous mixtures.
摘要:
Zur Trennung von Polydispersionen in ihre kontinuierliche und dispergierte Phase sowie von Emulsionen in ihre Bestandteile wird eine Membran vorgeschlagen, die bei ausreichender Permeabilität eine hohe mechanische Festigkeit und Stabilität aufweist und deren Permeabilität der jeweils zu trennenden Dispersion und/oder Emulsion in einfacher Weise anpaßbar ist. Die Membran besteht im wesentlichen aus einem porösen Stützgerüst als Tragkörper für eine Membranschicht aus gebundenem pulverförmigem Material. Dabei sind Pulverkörner und Binder für die Ausbildung der Schicht von solcher Beschaffenheit, daß die Schicht Durchlaßöffnungen aufweist. Durch diese kann die kontinuierliche Phase passieren, wogegen die dispergierte und/oder emulgierte Phase im wesentlichen zurückgehalten wird.