Abstract: A collecting conduit for leakage monitoring and leakage location at an installation, includes a support pipe having openings. An outer surface of the support pipe is covered by a layer being permeable to a substance to be monitored, at least on a segment extending in longitudinal direction of the support pipe. An electrically conductive layer extends in longitudinal direction. The substance (L) can at least penetrate into the electrically conductive layer and the electrically conductive layer has an ohmic resistance dependent on the substance penetrating into it. An apparatus and a method for leakage monitoring and leakage location are also provided.

Abstract: A collector line for leakage monitoring and leakage location at a plant includes a carrier tube having a wall with openings formed therein, which are sealed with silicone rubber. This makes it possible to use the collector line during low ambient temperatures. A device and a method for leakage monitoring and leakage location and a pipeline having a collector line, are also provided.

Abstract: A collector line for leakage monitoring and leakage location at a plant includes a carrier tube having a wall with openings formed therein, which are sealed with silicone rubber. This makes it possible to use the collector line during low ambient temperatures. A device and a method for leakage monitoring and leakage location and a pipeline having a collector line, are also provided.

Abstract: An assembly for monitoring and locating leaks in an installation includes a collecting line formed of a material that is impermeable to a substance to be monitored. The collecting line has a multiplicity of openings spaced apart in its longitudinal direction. The openings are closed with a filter element of a sintered metallic material that is permeable to the substance and has been subjected to a heat treatment in an oxidizing atmosphere.

Abstract: An assembly for monitoring and locating leaks in an installation includes a collecting line formed of a material that is impermeable to a substance to be monitored. The collecting line has a multiplicity of openings spaced apart in its longitudinal direction. The openings are closed with a filter element of a sintered metallic material that is permeable to the substance and has been subjected to a heat treatment in an oxidizing atmosphere.

Abstract: A collecting conduit for leakage monitoring and leakage location at an installation, includes a support pipe having openings. An outer surface of the support pipe is covered by a layer being permeable to a substance to be monitored, at least on a segment extending in longitudinal direction of the support pipe. An electrically conductive layer extends in longitudinal direction. The substance (L) can at least penetrate into the electrically conductive layer and the electrically conductive layer has an ohmic resistance dependent on the substance penetrating into it. An apparatus and a method for leakage monitoring and leakage location are also provided.

Abstract: A device for detecting a medium includes a sensor hose to be laid at a medium to be detected. A material is disposed at least in the vicinity of the sensor hose. The material reacts when in contact with the medium to be detected to produce a substance being capable of diffusion and being detectable.

Abstract: A process for the separation of uranium and plutonium as well as fission ducts including technetium from a nitric acid feed solution (fuel solution) in which said solution is treated with an extraction agent in an organic solvent to charge said agent with U, Pu and fission products including technetium by the counterflow process. The charged extraction agent containing U, Pu and fission products including technetrium is treated with a washing solution and subsequently with a reducing agent for the separation of the uranium from the plutonium and from fission products including technetium not previously washed out. To improve the separation of uranium and obtain a cleaner uranium end product, the treatment of the organic solvent containing said charged agent with reducing agent is effected in one or more stages by the crossflow process instead of by the counterflow process.

Abstract: The invention relates to a hollow conduit for utilization in determining concentration profiles of liquid or gaseous substances along a route, wherein the conduit provided for accommodation of a testing medium, which latter is to be moved therethrough in chronological intervals and is to be guided past a detector, is fashioned so that the substances can penetrate into the interior of the conduit. This hollow conduit consists of a material through which the substances can diffuse into the interior of the conduit. In the interior of the conduit, a hollow innner conduit 3 is provided, the wall of which has openings 5 and which consists of a compound impermeable for the substances.

Abstract: Process and apparatus for the determination of concentration profiles of liquid or gaseous substances along a path length, for example, crude oil and gas pipeline installations, wherein a length of hollow conduit filled with a column of test medium is laid along a path length, the hollow conduit being constructed to permit diffusion of the substances thereinto establishing a distribution corresponding to the concentration profile to be determined and the column of test medium is pushed through the hollow conduit at chronological intervals past a sensor sensitive to the substances.