Abstract: The present invention is directed to a polypropylene composition (C) a melt flow rate MFR2 (230° C.) determined according to ISO 1133 in the range of 15 to 40 g/10 min, the use of said polypropylene composition (C) for the production of a foamed article and a foamed article comprising said polypropylene composition (C).

Abstract: A pump module for an infusion pump includes a plunger-cylinder unit that can be coupled to the infusion pump in order to deliver fluid from a fluid feed line into a fluid drain line to a patient. The plunger-cylinder unit has a delivery chamber that is fluidically connected to the fluid feed line and the fluid drain line. The delivery chamber is delimited by the cylinder (14). The plunger can be moved linearly/back and forth in the axial direction. A plunger seal seals the plunger in relation to the cylinder. The section of the wall of the cylinder, over which the plunger seal passes during the back-and-forth motion of the plunger, is sealed in a sterile manner in relation to the surroundings.

Abstract: A piercing part for a medical infusion system includes a housing with a piercing mandrel, a fluid channel and a ventilation channel with a first channel portion extending at least substantially parallel to the fluid channel and with a second channel portion diverted towards an outside of the housing and to which an air filter element and a fluid shut-off member are assigned. A drip chamber can include a piercing part. The piercing part can be produced by an injection molding tool. The second channel portion in the housing is oriented parallel to the first channel portion and open towards an inside of the housing. An open region of the channel portion is closed by a separately produced closure part. The piercing part can be used with a medical infusion system.

Abstract: A medical fluid connector, having a first body with a tube section with an inlet and a first thread, a second body with an outlet and a second thread that engages the first thread to move the first and second bodies between closed and opened positions. The second body has a third thread that is configured to rotate in the opposite direction in relation to said first and second threads. The connector has a closure cap with a fourth thread that, in a delivery state of the fluid connector, is detachably screwed to the third thread of the second body, wherein the fluid connector assumes the open position, and wherein the outlet is closed off in an air-permeable and liquid-tight manner by means of the closure cap.

Abstract: A securing device for securing an infusion appliance to an infusion container includes a first fastening element, which is designed in such a way that it is connectable to a fastening region of the infusion container, and a second fastening element, which is arranged at a distance from the first fastening element and which is designed in such a way that it is connectable to a fastening region of the infusion appliance. At least one connection element connects the first fastening element and the second fastening element to each other. The securing device can be used for medical infusion and transfusion arrangements.

Abstract: An infusion system includes a pump and a replaceable pump module. The pump module can be arranged in a mount of the pump and includes a plunger-barrel unit operatively connectable to a drive mechanism of the pump. The pump module includes a plunger that can be coupled to the drive mechanism by a coupling structure operatively connected to the plunger and a counter-coupling structure for connecting engagement in the coupling structure and operatively connected to the drive mechanism. In a securing position, the infusion system includes a securing member which locks the coupling structure and the counter-coupling structure to each other. In addition or in the alternative, the infusion pump includes a control link operatively connected to the pump module.

Abstract: An apparatus is provided for treatment of process gas formed during nitric acid production by catalytic oxidation of NH3. The apparatus includes a reactor, a first catalyst bed for N2O decomposition, an absorption tower to react the NOx formed with an absorption medium downstream of the first catalyst bed, a device for adding NH3 added to tailgas entering the second catalyst bed, and a second catalyst bed for NOx reduction and further decrease in N2O in the tailgas exiting the absorption tower. The second catalyst bed contains at least one iron-loaded zeolite catalyst. N2O removal in the first catalyst bed is limited such that the process gas exiting the first catalyst bed exhibits a N2O content of >100 ppmv and a molar N2O/NOx ratio of >0.25. Treated gas exiting the second catalyst bed has a NOx concentration of <40 ppmv and a N2O concentration of <200 ppmv.

Abstract: A medical fluid connector, having a first body with a tube section with an inlet and a first thread, a second body with an outlet and a second thread that engages the first thread to move the first and second bodies between closed and opened positions. The second body has a third thread that is configured to rotate in the opposite direction in relation to said first and second threads. The connector has a closure cap with a fourth thread that, in a delivery state of the fluid connector, is detachably screwed to the third thread of the second body, wherein the fluid connector assumes the open position, and wherein the outlet is closed off in an air-permeable and liquid-tight manner by means of the closure cap.

Abstract: A method for disposing a bed comprising particles in a burner through which a gas can flow, more particularly in a burner basket of an ammonia oxidation burner, where the particles are disposed such that the bed has a greater flow resistance in an edge region of the burner than in an inner region of the burner. Further, a burner basket for a burner may have a bed comprising particles, wherein the particles are disposed such that the bed has a greater flow resistance in an edge region of the burner basket than in an inner region of the burner basket.

Abstract: A pump module for an infusion pump includes a plunger-cylinder unit that can be coupled to the infusion pump in order to deliver fluid from a fluid feed line into a fluid drain line to a patient. The plunger-cylinder unit has a delivery chamber that is fluidically connected to the fluid feed line and the fluid drain line. The delivery chamber is delimited by the cylinder (14). The plunger can be moved linearly/back and forth in the axial direction. A plunger seal seals the plunger in relation to the cylinder. The section of the wall of the cylinder, over which the plunger seal passes during the back-and-forth motion of the plunger, is sealed in a sterile manner in relation to the surroundings.

Abstract: A burner basket for an ammonia oxidation burner includes a gas-permeable bottom plate, with a side wall that is spaced apart from the bottom plate by a gap, and a retaining device covering the bottom plate and the gap for retaining particles of a bulk material that can be arranged in the burner basket. A fastening element is arranged on the bottom plate, by which the retaining device is fixed in place. An ammonia oxidation burner comprises a burner for oxidizing ammonia and a burner basket.

Abstract: A connection device includes a connection body which has a hose adapter and a connector piece for releasably fastening a further fluid conduit component or fluid storage component. The connection body is coaxially surrounded by a securing sleeve. The securing sleeve is axially securable on the connection body in two securing positions that are axially mutually spaced apart relative to a central longitudinal axis of the connection body. Rotatability of the securing sleeve is possible in a first securing position, and jamming of the securing sleeve on a hose portion that is plug-fitted onto the hose adapter is possible in a second securing position.

Abstract: A piercing part for a medical infusion system includes a housing with a piercing mandrel, a fluid channel and a ventilation channel with a first channel portion extending at least substantially parallel to the fluid channel and with a second channel portion diverted towards an outside of the housing and to which an air filter element and a fluid shut-off member are assigned. A drip chamber can include a piercing part. The piercing part can be produced by an injection molding tool. The second channel portion in the housing is oriented parallel to the first channel portion and open towards an inside of the housing. An open region of the channel portion is closed by a separately produced closure part. The piercing part can be used with a medical infusion system.

Abstract: A securing device for securing an infusion appliance to an infusion container includes a first fastening element, which is designed in such a way that it is connectable to a fastening region of the infusion container, and a second fastening element, which is arranged at a distance from the first fastening element and which is designed in such a way that it is connectable to a fastening region of the infusion appliance. At least one connection element connects the first fastening element and the second fastening element to each other. The securing device can be used for medical infusion and transfusion arrangements.

Abstract: A connection device includes a connection body which has a hose adapter and a connector piece for releasably fastening a further fluid conduit component or fluid storage component. The connection body is coaxially surrounded by a securing sleeve. The securing sleeve is axially securable on the connection body in two securing positions that are axially mutually spaced apart relative to a central longitudinal axis of the connection body. Rotatability of the securing sleeve is possible in a first securing position, and jamming of the securing sleeve on a hose portion that is plug-fitted onto the hose adapter is possible in a second securing position.

Abstract: A method for disposing a bed comprising particles in a burner through which a gas can flow, more particularly in a burner basket of an ammonia oxidation burner, where the particles are disposed such that the bed has a greater flow resistance in an edge region of the burner than in an inner region of the burner. Further, a burner basket for a burner may have a bed comprising particles, wherein the particles are disposed such that the bed has a greater flow resistance in an edge region of the burner basket than in an inner region of the burner basket.

Abstract: The invention relates to a process and apparatus for preparing nitric acid by catalytic oxidation of NH3 by means of oxygen and subsequent reaction of the NOx formed with an absorption medium in an absorption tower, which comprises a catalyst bed for N2O decomposition arranged in the process gas downstream of the catalytic NH3 oxidation and upstream of the absorption tower in the flow direction and a catalyst bed for NOx reduction and effecting a further decrease in the amount of N2O arranged in the tailgas downstream of the absorption tower in the flow direction, wherein the amount of N2O removed in the catalyst bed for N2O removal arranged in the process gas is not more than that which results in an N2O content of >100 ppmv and a molar N2O/NOx ratio of >0.

Abstract: A burner basket for an ammonia oxidation burner includes a gas-permeable bottom plate, with a side wall that is spaced apart from the bottom plate by a gap, and a retaining device covering the bottom plate and the gap for retaining particles of a bulk material that can be arranged in the burner basket. A fastening element is arranged on the bottom plate, by which the retaining device is fixed in place. An ammonia oxidation burner comprises a burner for oxidizing ammonia and a burner basket.

Abstract: The invention relates to a process and apparatus for preparing nitric acid by catalytic oxidation of NH3 by means of oxygen and subsequent reaction of the NOx formed with an absorption medium in an absorption tower, which comprises a catalyst bed for N2O decomposition arranged in the process gas downstream of the catalytic NH3 oxidation and upstream of the absorption tower in the flow direction and a catalyst bed for NOx reduction and effecting a further decrease in the amount of N2O arranged in the tailgas downstream of the absorption tower in the flow direction, wherein the amount of N2O removed in the catalyst bed for N2O removal arranged in the process gas is not more than that which results in an N2O content of >100 ppmv and a molar N2O/NOx ratio of >0.

Abstract: A sealing system of a burner basket in an ammonia oxidation burner, wherein the burner basket has a wall that is anchored in the ammonia oxidation burner and the burner basket has a gas-permeable bottom plate, which is placed on further internal fittings of the ammonia oxidation burner and has a peripheral rim, wherein the wall and the gas-permeable bottom plate are not mechanically connected to each other, and so there is a gap between the wall and the peripheral rim of the bottom plate, wherein at the peripheral rim of the bottom plate a rim seal that is made up of individual segments is mounted movably by way of guiding pins and the rim seal projects over the gap between the peripheral rim of the bottom plate to the wall and lies against the wall.