Abstract: A method of counteracting crystalline deposits on a surface includes applying a sprayable low-viscosity suspension including a binder system including at least one organosilicon constituent selected from the group consisting of alkylpolysiloxane, alkylsilicone resin and phenylsilicone resin; ceramic particles; hexagonal boron nitride particles; optionally, process additives; and at least one solvent to the surface and curing the suspension.

Abstract: The invention relates to a method of production of catalyst particles, comprising platinum and tin and also at least one further element, selected from lanthanum and cesium, on zirconium dioxide as support, comprising the steps: preparation of one or more solutions containing precursor compounds of Pt, Sn and at least one further element of La or Cs and also ZrO2, converting the solution(s) to an aerosol, bringing the aerosol into a directly or indirectly heated pyrolysis zone, carrying out pyrolysis, and separation of the particles formed from the pyrolysis gas. Suitable precursor compounds comprise zirconium(IV) acetylacetonate, lanthanum(II) acetylacetonate and cesium acetate, hexamethyldisiloxane, tin 2-ethylhexanoate, platinum acetylacetonate, zirconium(IV) propylate in n-propanol and lanthanum(II) acetylacetonate. The invention also relates to the catalyst particles obtainable using the method according to the invention, and to the use thereof as dehydrogenation catalysts.

Abstract: The invention relates to a method of production of catalyst particles, comprising platinum and tin and also at least one further element, selected from lanthanum and cesium, on zirconium dioxide as support, comprising the steps: preparation of one or more solutions containing precursor compounds of Pt, Sn and at least one further element of La or Cs and also ZrO2, converting the solution(s) to an aerosol, bringing the aerosol into a directly or indirectly heated pyrolysis zone, carrying out pyrolysis, and separation of the particles formed from the pyrolysis gas. Suitable precursor compounds comprise zirconium(IV) acetylacetonate, lanthanum(II) acetylacetonate and cesium acetate, hexamethyldisiloxane, tin 2-ethylhexanoate, platinum acetylacetonate, zirconium(IV) propylate in n-propanol and lanthanum(II) acetylacetonate. The invention also relates to the catalyst particles obtainable using the method according to the invention, and to the use thereof as dehydrogenation catalysts.

Abstract: The present invention relates to a coating material comprising (A) at least one binder as component (A) and (B) at least one photocatalytically active particle comprising a core composed of at least one first substance having a diameter of 0.1 to 1 ?m and at least one envelope at least partly surrounding the core and composed of at least one second substance having an average layer thickness of 0.1 to 10 nm as component (B).

Abstract: The invention relates to a method of production of catalyst support particles, containing zirconium dioxide and optionally silicon oxide, comprising the steps (i) preparation of a solution containing precursor compounds of zirconium dioxide and optionally of silicon dioxide, (ii) converting the solution(s) to an aerosol, (iii) bringing the aerosol into a directly or indirectly heated pyrolysis zone, (iv) carrying out pyrolysis, and (v) separation of the catalyst particles formed from the pyrolysis gas.

Abstract: The invention relates to a method of production of catalyst particles, comprising platinum and tin and also at least one further element, selected from lanthanum and cesium, on zirconium dioxide as support, comprising the steps: preparation of one or more solutions containing precursor compounds of Pt, Sn and at least one further element of La or Cs and also ZrO2, converting the solution(s) to an aerosol, bringing the aerosol into a directly or indirectly heated pyrolysis zone, carrying out pyrolysis, and separation of the particles formed from the pyrolysis gas. Suitable precursor compounds comprise zirconium(IV) acetylacetonate, lanthanum(II) acetylacetonate and cesium acetate, hexamethyldisiloxane, tin 2-ethylhexanoate, platinum acetylacetonate, zirconium(IV) propylate in n-propanol and lanthanum(II) acetylacetonate. The invention also relates to the catalyst particles obtainable using the method according to the invention, and to the use thereof as dehydrogenation catalysts.

Abstract: The invention relates to a process for producing nanoparticulate solids by means of a Péclet number-stabilized gas-phase reaction.

Abstract: The invention relates to a method for printing a substrate (7), in which ink is transferred from an ink carrier (3) to the substrate (7) in accordance with a predefined pattern by energy being introduced into the ink through the ink carrier (3) by a device for the introduction of energy (11), the ink carrier (3) and the substrate (7) not coming into contact. The substrate (7) is introduced into an electric field, so that a homogeneous charge field is produced on the surface of the substrate (7). The invention further relates to a printing machine, comprising an ink carrier (3) which can be coated with an ink to be printed, and a device (11) for the introduction of energy into the ink, the device (11) for the introduction of energy being arranged in such a way that the energy can be introduced into a printing area (9) on the side of the ink carrier (3) facing away from the ink, so that the ink is transferred from the ink carrier (3) to a substrate (7) to be printed in an area of action of the energy.

Abstract: The invention relates to a method for printing a substrate (7) in a printing machine, in which ink is transferred from a flexible carrier (3) to the substrate (7) in accordance with a predefined pattern by energy being introduced into the ink through the flexible carrier (3) by a device for the introduction of energy, some of the ink evaporating in the area of action of the energy and, as a result, a drop of ink (67) being thrown onto the substrate (7) to be printed, this step being repeated at least once, ink being transferred at least partly to the substrate (7) at the same positions in order to intensify the pattern produced. The substrate is transported through the printing machine (1) during the printing and, after the transfer of ink in step (a), the device for the introduction of energy is controlled in such a way that, during the repetition in step (b), the ink is transferred at the same position again as in step (a). The invention further relates to a printing machine for implementing the method.

Abstract: The invention relates to a printing machine, comprising a flexible carrier (3) which is coated with an ink to be printed, and to a device for the introduction of energy (11) into the ink, the device for the introduction of energy (11) being arranged in such a way that the energy can be introduced in a printing area (9) on the side facing away from the ink, so that ink is transferred from the carrier (3) to a substrate (7) to be printed. In the printing area there is arranged a tensioning device (13), with which the flexible carrier (3) is tensioned in the area in which the energy is introduced, in order to obtain a smooth surface.

Abstract: The invention relates to a process for producing nanoparticulate solids by means of a Péclet number-stabilized gas-phase reaction.

Abstract: The present invention relates to a coating material comprising (A) at least one binder as component (A) and (B) at least one photocatalytically active particle comprising a core composed of at least one first substance having a diameter of 0.1 to 1 ?m and at least one envelope at least partly surrounding the core and composed of at least one second substance having an average layer thickness of 0.1 to 10 nm as component (B).

Abstract: A layer or coating which counteracts crystalline deposits on a substrate includes a matrix composed of a binder system and ceramic particles, and also boron nitride in particle form, wherein the boron nitride particles are incorporated into the matrix and are distributed essentially homogeneously therein.

Abstract: The invention relates to a process for preparing suspensions of nanoparticulate solids, wherein the solids present in the suspension are present in the form of nanoparticulate primary particles or very small aggregates.

Abstract: A process for the preparation of acetylene and synthesis gas by partial thermal oxidation in a reactor which has a burner having passages, wherein the starting materials to be reacted are rapidly and completely mixed only immediately before the flame reaction zone in the passages of the burner, a mean flow rate which exceeds the flame propagation velocities under the given reaction conditions being established in the mixing zone within the passages.

Abstract: The invention relates to a process for producing nanoparticulate solids by means of a Péclet number-stabilized gas-phase reaction.