Abstract: A method and an apparatus for processing and recovering bitumen (42) and aggregate (41) from asphalt (40), in which: a) the asphalt (40) is mechanically comminuted; b) the comminuted asphalt is introduced into an evacuated or evacuatable processing chamber (1); c) the processing chamber (1) is evacuated by adjusting the pressure in the processing chamber (1) to a pressure lower than ambient pressure, preferably 200 mbar or lower; d) the processing chamber (1) is then charged at least once with a liquid organic solvent; e) the liquid organic solvent is then extracted from the processing chamber (1); and then f1) the organic solvent is fed into the evacuated processing chamber (1) in the vapor phase at the reduced pressure, at a temperature at or above the flash point of the organic solvent; and/or f2) liquid organic solvent is fed into the treatment chamber (1).

Abstract: A method and an apparatus for processing and recovering bitumen (42) and aggregate (41) from asphalt (40), in which: a) the asphalt (40) is mechanically comminuted; b) the comminuted asphalt is introduced into an evacuated or evacuatable processing chamber (1); c) the processing chamber (1) is evacuated by adjusting the pressure in the processing chamber (1) to a pressure lower than ambient pressure, preferably 200 mbar or lower; d) the processing chamber (1) is then charged at least once with a liquid organic solvent; e) the liquid organic solvent is then extracted from the processing chamber (1); and then f1) the organic solvent is fed into the evacuated processing chamber (1) in the vapor phase at the reduced pressure, at a temperature at or above the flash point of the organic solvent; and/or f2) liquid organic solvent is fed into the treatment chamber (1).

Abstract: The invention relates to novel solid body forms of mesoprogestin 11?-[4E-(hydroxyiminomethyl)-phenyl]-17?-methoxymethyl-17?-methoxy-estra-4,9-dien-3-one (oxime J 867), particularly a highly pure and stable amorphous or highly crystalline form (ansolvate/anhydrate) of compound J 867. The invention also relates to methods for producing said novel solid body forms and to the use thereof in pharmaceutical compositions. The novel solid body forms are characterized by exhibiting a high degree of stability. The solid body forms of oxime J 867 can, in particular, be used in the area of fertility control and in hormone replacement therapy.

Abstract: The invention relates to novel solid body forms of mesoprogestin 11&bgr;-[4E-(hydroxyiminomethyl)-phenyl]-17&agr;-methoxymethyl-17&bgr;-methoxy-estra-4,9-dien-3-one (oxime J 867), particularly a highly pure and stable amorphous or highly crystalline form (ansolvate/anhydrate) of compound J 867. The invention also relates to methods for producing said novel solid body forms and to the use thereof in pharmaceutical compositions. The novel solid body forms are characterized by exhibiting a high degree of stability. The solid body forms of oxime J 867 can, in particular, be used in the area of fertility control and in hormone replacement therapy.

Abstract: In a process for cleaning one or more articles in the vapor phase of an organic solvent the solvent vapor is fed into a cleaning chamber (1) wherein an absolute pressure of 200 mbar or less is maintained and the cleaning is conducted at a temperature at or above the flash point of the organic solvent. A preferred apparatus for conducting the cleaning process contains a cleaning chamber (1), two storage tanks (2 and 3), an evaporator (4), a heating device (5) and a condenser (6). These devices are connected by means of a conduit system which is equipped with a vacuum pump (7), two pumps (8 and 9) and valves (12, 13, 14, 15, 16, 17, 18, 19, 20, 21 and 22). Inlet air (11) can be fed into the cleaning chamber (1). Waste gas (10) can be removed from the apparatus by means of the vacuum pump (7).

Abstract: A method and system for cleaning workpieces with a liquid solvent in a treatment chamber which is connected into a drying gas circuit for the purpose of drying the workpieces. The drying gas circuit includes in series one after the other a ventilator, a condenser, a heating device and an adsorber containing activated carbon. The circuit is operated such that during a drying phase the condenser is cooled, the heating device switched on and the activated carbon regenerated by the hot circulating air whereupon, during an adsorption phase with the condenser switched on and the heating device switched off, the remaining solvent vapor is withdrawn from the circulating drying air by the activated carbon.

Abstract: In a method for reprocessing aqueous, oily and greasy cleaning solutions by separating oil and grease out of the solution in an oil separator, a mixture of oil, grease and cleaning solution separated in the oil separator is subjected to vaporization for the purpose of thickening it, the hot water vapor thereby resulting is used to heat the oil separator and the condensed water resulting from the vapor is fed back to the cleaning solution for its regeneration. An apparatus for performing this method is characterized in that the oil separator is enclosed by an outer casing, in the bottom region of which the separated cleaning solution containing oil and grease is collected and vaporized, the hot vapor thereby resulting being utilized to heat the cleaning fluid in the oil separator. A condensate collecting tray is provided between the bottom region of the outer casing and a bottom wall of the oil separator and condensed water flows from this tray back into the cleaning solution.

Abstract: An apparatus for loading and unloading of film cassette, in particular X-rays cassettes has a housing which defines a compartment in which the cassette is to be positioned, means for transporting the cassette into the compartment and for discharging therefrom, and means for removing the film from the cassette and loading the cassette with a new film. For recognizing the size of the cassette first and second identifying means are provided which determine the length and the width of the cassette. These determining means are in communication with comparing means which compare the determined values with nominal values corresponding to predetermined length-and-width values.

Abstract: An apparatus for loading and unloading a film cassette, in particular an X-ray film cassette, has a housing defining a compartment and includes a front face provided with an opening to the compartment through which opening the cassette is introduced. For transporting the cassette from the opening into the compartment, and for discharging the cassette, the apparatus is provided with at least one carrier roller extending parallel to the opening of the housing. The carrier roller transports the cassette to an unlocking station in which the cassette is unlocked. For removing the exposed film and loading of a new film into the cassette, second transport means are provided which move the cassette from the unlocking station into a removing station and subsequently into a loading station.

Abstract: An arrangement for loading and unloading X-ray film cassettes is provided with a channel bounded by bottom, top and lateral walls. At one of its ends, the channel has an inlet opening for the cassettes, while it is provided with an abutment wall at its other end. A plurality of transporting rollers is accommodated in respective slots of the bottom wall, each of the transporting rollers slightly projecting above the bottom wall to engage and entrain the respective cassette resting thereon. A switching roller is situated in a recess of the bottom wall between the inlet opening and the first of the transporting rollers. The switching roller is supported on springs so that, when the cassette rests thereon, it is depressed into the recess, so that the respective spring activates an associated light barrier that issues a control signal. The control signal is used for energizing the drive for the transporting rollers, if de-energized, and for de-energizing the drive, if energized.