Process for operating a plant for the gasification of fine-grained to dusty solid fuels, having a gasification reactor equipped with gasification burners, a device for separating fly dust from the crude gas, a fly dust receiver and a device for recycling fly dust into the gasification reactor. The gasification burners burn into the gasification reactor with a fuel/reactant jet which is rotationall...

Gasification burner for an installation for the gasification of fine-grain to powdery solid fuels, which has a gasification reactor, having a first central guide channel (1) for primary oxidising agents, a surrounding annular fuel channel (2) for the fuels which are introduced with a carrier gas, a second annular guide channel (3), surrounding the annular fuel channel (2), for secondary oxidising ...

A system is coupled to a pointing mirror (12) for stabilizing it and its line-of-sight (13) from three-dimensional rotational disturbances ( omega i, omega j, omega k) exerted thereon. First and second two-degree-of-freedom dynamically tuned gyroscopes (26, 28) are secured to the mirror and placed respectively on its elevation and azimuth axes (22, 24). The first gyroscope (26) is coupled to ele...

Alkyl sulfosuccinates based on propoxylated and propoxylated and ethoxylated fatty alcohols as flotation collectors for non-sulfidic ores and to a process for the separation of non-sulfidic ores by flotation in which the alkyl sulfosuccinates used contain one or two identical or different, straight-chain and/or branched-chain, saturated or unsaturated alkyl radicals based on propoxylated or propox...