Abstract:
The invention relates to a device for continuously and catalytically removing binder from metallic and/or ceramic moulded bodies produced by powder injection moulding, the device comprising a binder-removing furnace, through which the moulded bodies pass in a direction of conveyance and in which they are brought to a suitable processing temperature, a conveying device, for introducing a process gas which is needed to remove the binder and contains a reaction partner, at least one device for introducing a protective gas into a reaction chamber of the binder-removing furnace, and a burner, for burning the gaseous reaction products that result from the binder removing process, one or more devices being included which lead to a targeted flow of the process gas in the device transversely to the direction of conveyance.
Abstract:
The apparatus for the continuous catalytic removal of binder from metallic and/or ceramic shaped bodies produced by powder injection molding, which comprises a binder removal furnace through which the shaped bodies pass in a transport direction and are brought to a suitable process temperature, a feed facility for introduction of a process gas which is required for binder removal and comprises a reactant, at least one facility for the introduction of a protective gas into a reaction space of the binder removal furnace and a flare to burn the gaseous reaction products obtained in binder removal, wherein one or more devices which lead to a flow of the process gas directed transversely to the transport direction in the apparatus are present.
Abstract:
The invention relates to a process for optimizing the properties of aqueous polymer solutions used for polymer flooding which comprises treating the polymer solutions under turbulent flow conditions in dynamic fluid dispersing or pumping equipment such that the residence time of the polymer solution in this equipment is less than approximately 20 seconds and the pump energy used is from about 1 to about 15 watts/liter of solution processed. This process permits the optimization of flow properties important in polymer flooding which results in the improved efficiency of the polymer flooding process.
Abstract:
El aparato para la remocion catalitica continua de aglutinante de cuerpos configurados metalicos y/o de ceramica producidos mediante moldeo por inyeccion de polvo, que comprende un horno de remocion de aglutinante a traves del cual los cuerpos configurados pasan en una direccion de transporte y son llevados a una temperatura de proceso apropiada, una instalacion de alimentacion para introduccion de un gas de proceso que se requiere para remocion de aglutinante y comprende un reactivo, cuando menos una instalacion para la introduccion de un gas protector hacia un espacio de reaccion del horno de remocion de aglutinante y una flama para quemar los productos de reaccion gaseosos obtenidos en la remocion de aglutinante, en donde uno o mas dispositivos que conducen a un flujo del gas de proceso dirigido transversalmente a la direccion de transporte en el aparato estan presentes.
Abstract:
The apparatus for the continuous catalytic removal of binder from metallic and/or ceramic shaped bodies produced by powder injection molding, which comprises a binder removal furnace through which the shaped bodies pass in a transport direction and are brought to a suitable process temperature, a feed facility for introduction of a process gas which is required for binder removal and comprises a reactant, at least one facility for the introduction of a protective gas into a reaction space of the binder removal furnace and a flare to burn the gaseous reaction products obtained in binder removal, wherein one or more devices which lead to a flow of the process gas directed transversely to the transport direction in the apparatus are present.
Abstract:
Dilute aqueous solutions of high molecular weight polymers of acrylamide or methacrylamide or of homopolymers or copolymers of salts of ethylenically unsaturated C3-C5-carboxylic acids are stabilized to thermal degradation by adding (a) at least 20 ppm of an inorganic sulfur compound, in which the sulfur has an oxidation number of +2 to +5, and (b) at least 20 ppm of a complexing agent for metal ions.
Abstract:
PROCESS FOR OPTIMIZING THE PROPERTIES OF AQUEOUS POLYMER SOLUTIONS USED IN POLYMER FLOODING The invention relates to a process for optimizing the properties of aqueous polymer solutions used for polymer flooding which comprises treating the polymer solutions under turbulent flow conditions in dynamic fluid dispersing or pumping equipment such that the residence time of the polymer solution in this equipment is less than approximately 20 seconds and the pump energy used is from about 1 to about 15 watts/liter of solution processed. This process permits the optimization of flow properties important in polymer flooding which results in the improved efficiency of the polymer flooding process.