Abstract: A method for producing a cellulose solution with a solvent from a cellulose suspension in the solvent and a volatile non-solvent, including the introduction of the suspension into an inlet of a thin-film treatment apparatus, application and distribution of the suspension in a film-like form on a housing casing, temperature-controlled using a heat exchanger, by sweeper elements rotating about a common axis in a process housing of the treatment apparatus, evaporation of volatile non-solvent so that the cellulose is dissolved, and output of the solution of cellulose from the treatment apparatus through an outlet, wherein at least a part of the sweeper elements cause the cellulose to be advanced in the direction of the outlet so that the discharge at the outlet is between 300 kg/h and 600 kg/h cellulose solution per m2 of the temperature-controlled surface of the housing casing.

Abstract: A valve having a valve housing and a shut-off element, the valve housing having a cavity for receiving the shut-off element, at least one inlet opening for a fluid to flow into the cavity and at least three outlet openings for the fluid to flow out of the cavity, the shut-off element having a guide body and being arranged in a movable manner at least partially in the cavity of the valve housing, the shut-off element having at least one shut-off projection for shutting off at least one of the outlet openings.

Abstract: A process and a device for regenerating a solvent for cellulose in a shaped cellulose article production process, including the steps of starting a continuous process for the production of solid shaped cellulose articles from a cellulose solution which includes the steps of: i) providing a cellulose solution of dissolved cellulose and a cellulose solvent and preferably a non-solvent, particularly preferably water, ii) shaping the cellulose solution into a desired geometrical shape, iii) consolidating the shaped cellulose solution into shaped cellulose articles in a coagulation liquid, iv) washing the shaped cellulose articles, wherein upon start-up and/or during the continuous process, shaped article waste of the cellulose solution accrues in an unwanted form, collecting the shaped article waste in the unwanted form, comminuting the shaped article waste, extracting solvent from the comminuted shaped article waste.

Abstract: A thin-film treatment apparatus for treating viscous material includes a process housing oriented at an incline of at most 20° with a heatable and/or coolable housing casing, which surrounds a housing interior forming a material treatment space, an inlet nozzle arranged in an inlet zone of the process housing to introduce the material to be treated into the material treatment space, an outlet nozzle arranged in an outlet zone of the process housing to discharge the treated material from the material treatment space, and a drivable rotor shaft arranged in the material treatment space and extending coaxially for producing a material film on the inner surface of the housing casing and for conveying the material in the direction of an outlet zone. The rotor shaft includes at least one lift element arranged on the rotor shaft body, for producing a lifting force in the direction of the rotating rotor shaft body.