Abstract: A method for manufacturing mixed oxide powders including the steps (a) producing a raw material mixture, (b) bringing the raw material mixture into a hot gas flow for the thermal treatment in a reactor, (c) forming particles of the mixed oxide powder, and (d) bringing the particles of the mixed oxide powder which are obtained in the step (b) and (c) out of the reactor, wherein the raw material mixture is manufactured in the form of a solution or suspension of at least one salt and/or salt mixture of at least one compound of the elements lithium, nickel and/or manganese, as well as a mixed oxide powder which is manufactured according to this method.

Abstract: The invention relates to a core which is formed from a raw material mixture comprising at least a solid powder resin and a further finely divided starting material, and which, in the thermally treated state, has a density of less than 2 g/cm3. The invention further relates to a process for producing cores, in which raw material components are mixed to give a raw material mixture and granulated to form cores, and the latter are subsequently subjected to a thermal treatment in the temperature range of 120° C. to 220° C.

Abstract: The invention relates to a process for the preparation of garnet phosphors or precursors thereof having particles with an average particle size of 50 nm to 20 ?m via a multistep thermal process in a pulsation reactor, and to illumination units comprising the garnet phosphors according to the invention.

Abstract: The present invention relates to a novel process for the preparation of compact, spherical mixed oxide powders having an average particle size of <10 ?m by spray pyrolysis, and to the use thereof as phosphor, as base material for phosphors or as starting material for ceramic production or for the preparation of high-density, high-strength and optionally transparent bulk material by means of hot-pressing technology.

Abstract: Disclosed is a proppant core, having low density and high strength and a process for its production. The proppant core is especially useful in crude oil and natural gas extraction. The proppant properties are achieved by virtue of the raw material mixture consisting of melt phase former and at least one further component and containing less than 35% Al2O3. The process includes mixing the raw material components, homogenizing, granulating and then thermally treating the cores.

Abstract: Disclosed is a proppant core and a process for its production. The core (1) is formed from a raw material mixture comprising at least a solid powder resin and a further finely divided starting material, and which, in the thermally treated state, has a density of less than 2 g/cm3. The process includes mixing the raw material components and granulating to form cores (1), subjecting them to a thermal treatment in the temperature range of 120° C. to 220° C.