Abstract: The invention relates to a method and a device for monitoring a fluid flow delivered by means of a pump. In the method the pressure distribution of the fluid is continuously or quasi-continuously measured as actual values in partial areas of the pump stroke and compared with desired values. In the device at least one pressure sensor is provided for the continuous or quasi-continuous measurement of the pressure of a fluid at least in partial areas of the pump stroke and a comparator is provided for comparing the measured actual values of the pressure with desired values.

Abstract: The invention relates to a method for producing a vegetable protein ingredient for ice cream. According to said method, in a protein extraction step, part of the lupin protein contained in crushed lupin seeds is dissolved or at least dispersed in an aqueous phase, any fibres contained in the aqueous phase are separated and the lupin protein is separated from the aqueous phase in order to obtain the protein ingredient. The invention is characterised in that for the protein extraction step a pH value of 6?pH<7 is set for the aqueous phase. The invention also relates to a preferably pure vegetable ice cream containing the protein ingredient obtained from lupins. The ice cream has a texture in the mouth that is comparable to that of conventional ice cream and that in part surpasses the quality criteria of the latter in terms of sensitivity to cold and creamy texture.

Abstract: In a method for producing molding elements having a predetermined thickness profile, in which a filling tool of a filling device is filled with a molding material and the molding material is released in the direction of gravity from the filling tool into a pressing mold of a press, the molding material is held in the filling tool by means of suction, and its release into the pressing mold is effected by a reduction, particularly a deactivation, of the suction force.

Abstract: A process for long-term operation of a continuous heterogeneously catalyzed partial dehydrogenation of a hydrocarbon to be dehydrogenated, in which a reaction gas mixture stream comprising the hydrocarbon to be dehydrogenated in a molar starting amount KW is conducted through an overall catalyst bed comprising the total amount M of dehydrogenation catalyst and the deactivation of the overall catalyst bed is counteracted in such a way that, with increasing operating time, the contribution to the conversion in the first third of the total amount M of dehydrogenation catalyst in flow direction decreases, the contribution to the conversion in the last third of the total amount M of dehydrogenation catalyst in flow direction increases, and the contribution to the conversion in the second third of the total amount M of dehydrogenation catalyst in flow direction passes through a maximum.

Abstract: A method for processing an olefin-containing product stream that contains dimethyl ether as a by-product is described. Such a product stream arises, for example, in the synthesis of olefin from methanol. For separation of the dimethyl ether from the product stream, it is proposed that at least a partial stream chiefly containing C3 hydrocarbons is separated from the product stream by fractionation, and is sent to a rectification column (C3 splitter) (16) for separation of propylene and propane. The dimethyl ether goes together with the propane into the bottom of the rectification column in the rectification process and can be withdrawn (42). A substantially pure propylene product (41), which contains at most only traces of dimethyl ether, can be removed from the top of the rectification column.

Abstract: A process for heterogeneously catalyzed partial gas phase oxidation of propylene to acrylic acid, in which the starting reaction gas mixture comprises cyclopropane as an impurity and the acrylic acid, after conversion from the product gas mixture into the condensed phase, is removed with the aid of a crystallative removal.

Abstract: A process for continuous heterogeneously catalyzed partial dehydrogenation of at least one hydrocarbon to be dehydrogenated in a reactor which is manufactured from a steel with specific elemental composition on its side in contact with the reaction gas, and also partial oxidations of the dehydrogenated hydrocarbon and the reactor itself.

Abstract: An annular unsupported catalyst for the heterogeneously catalyzed partial gas phase oxidation of propene to acrolein at a propene hourly space velocity on the fixed catalyst bed of ?120 1 (STP)/l·h and a total CO2 and saturated hydrocarbon content of the starting reaction gas mixture of below 15 mol %, the catalysts of the fixed catalyst bed are the annular unsupported catalysts whose active composition is a multimetal oxide in which the molar Co/Fe ratio=from 2 to 4 and the molar Co/Mo ratio=from 0.3 to 0.7.

Abstract: A process for preparing acrolein, or acrylic acid or a mixture thereof as a target product from propane, in which propane is partially dehydrogenated under heterogeneous catalysis in a reaction zone A, molecular hydrogen thus formed is incinerated partly to water and the product gas A thus formed in reaction zone A is used without secondary component removal to charge a reaction zone B in which propylene present in product gas A is partially oxidized to the target product. From the product gas B formed in reaction zone B, the target product is removed and the residual gas I remaining after an aftertreatment comprising a CO2 scrubbing and a partial discharge thereof is recycled into reaction zone A.

Abstract: A process for preparing acrolein or acrylic acid or a mixture thereof from propane, in which propane is dehydrogenated under heterogeneous catalysis in a reaction zone A and the propylene formed is partially oxidized heterogeneously in a reaction zone, reaction zone A being operated in loop mode and reaction gas mixture input stream A fed to the reaction zone A comprising added molecular hydrogen which is added to this input stream as late as possible.

Abstract: The invention relates to a soldering material comprising an alloy that in addition to Sn (tin) as the major constituent, comprises 10 wt. % or less Ag (silver), 10 wt. % or less Bi (bismuth), 10 wt. % or less Sb (antimony) and 3 wt. % or less Cu (copper). Furthermore, the invention relates to a soldering material comprising a plurality of soldering components with such alloy compositions and contents in the soldering material that on fusing the soldering components an alloy is formed that comprises Sn, Ag, Bi, Sb and Cu in the abovementioned alloy contents.

Abstract: A process for covering the demand for polymers I in a country I, in which the monomers of the polymer I are obtained in at least one country II, then these monomers are polymerized free-radically to polymer I in this country II, and polymer I thus obtained is subsequently exported to a country I.

Abstract: A process for preparing shaped catalyst bodies whose active composition is a multielement oxide, in which a finely divided precursor mixture is shaped to a desired geometry with addition of boron nitride and subsequently treated thermally.