Abstract: A mixing device for mixing a liquid plastics component with a gas, includes a liquid feed, a gas feed, and a discharge opening for discharging the mixture generated in the mixing device. Each of the liquid feed, gas feed, and discharge opening is connected to a mixing chamber in which a rotatable agitator device is arranged. A shaft for driving the agitator device projects out of the mixing chamber, and the mixing chamber is sealed off, in the region of the shaft, by a seal. On that side of the seal which is averted from the mixing chamber, there is a reservoir which is connected to the liquid feed and which is connected by a passage to the mixing chamber.

Abstract: For the conveying device for heterogeneous, sensitive foods that cannot be pumped and have a low liquid content, e.g., Asian noodle or rice dishes, a screw conveyor, which is designed as a hollow worm, is rotated by means of a drive motor. The drive motor is connected to the screw conveyor by a bearing flange and a connecting bolt. The screw conveyor is partially hollow and has radial spikes.

Abstract: A method for hydrodesulfurization by forming a dispersion comprising hydrogen-containing gas bubbles with a mean diameter of less than 1 micron dispersed in a liquid phase comprising sulfur-containing compounds. Desulfurizing a liquid stream comprising sulfur-containing compounds by subjecting a fluid mixture comprising hydrogen-containing gas and the liquid to a shear rate greater than 20,000 s?1 to produce a dispersion of hydrogen in a continuous phase of the liquid and introducing the dispersion into a fixed bed hydrodesulfurization reactor from which a reactor product is removed. Systems of apparatus for hydrodesulfurization are also presented.

Abstract: Systems to store and agitate fuel can include a fuel storage tank including an air valve, and a fuel agitation system coupled to the fuel storage tank that can include an elongate fuel agitation member, a lumen, a plurality of valves extending from the elongate fuel agitation member, and an air passageway in fluid communication with the elongate fuel agitation member, where the air passageway is coupled to the first end of the elongate fuel agitation member by a rotational coupling located in the fuel storage tank that can be pneumatically actuated by air flow to rotate the elongate fuel agitation member as the air flow is introduced via the plurality of valves into the fuel storage tank, where the introduced air flow exits the fuel storage chamber out of the air valve.

Abstract: A mixing device (10) for mixing mixable substances, comprising aerating means (12) with a rotational axis (14) adapted to add air to the mixable substances and screw-shaped feeding means (16) with a rotational axis (18) adapted to transport mixable substances at least partly into the direction of the aerating means (12). With the inventive mixing device (10) it is possible to provide a mixing device (10) with which it is possible to even mix small quantities of mixable substances with good results.

Abstract: The present invention relates to an apparatus for homogenizing powder, which includes a drive device and a homogenization unit. The drive device moves the homogenization unit back and forth in at least one horizontal direction. The homogenization unit has a multitude of essentially vertically arranged, rod-shaped elements which are immersed at least partly into a powder to be homogenized.

Abstract: The flow-through cavitation device is provided for mixing and manipulating fluids that comprises feeding a fluidic mixture in a multi-stage flow-through hydrodynamic cavitation system, subjecting said fluid to a controlled multi-stage cavitation and continuing the treatment for a period of time sufficient for obtaining desirable changes in the physical and/or chemical properties and generating upgraded products.

Abstract: The present invention relates to an apparatus for homogenizing powder, which includes a drive device and a homogenization unit. The drive device moves the homogenization unit back and forth in at least one horizontal direction. The homogenization unit has a multitude of essentially vertically arranged, rod-shaped elements which are immersed at least partly into a powder to be homogenized.

Abstract: A method of producing hydroxylammonium salts by catalytic reaction of nitrogen monoxide with hydrogen in a diluted aqueous solution of mineral acid in the presence of platinum catalysts suspended on a support in multiple subsequent reaction stages. This reaction takes place in a stirred reactor wherein a gas inlet and distribution system is provided in the lower part of the stirred reactor, a disk agitator is placed immediately above, the hub with bearing surface or support mounting angled, concave and tilted agitator blades that rotate their angled or concave sides in the direction of motion, and a two-blade agitator is provided on the agitator shaft in the upper part of the stirred reactor, its individual leaves being offset like lamellas so that they constantly wet the reactor cap when rotating.

Abstract: Method and apparatus are provided for collecting reaction product solids entrained in a gaseous outflow from a reaction situs, wherein the gaseous outflow includes a condensable vapor. A condensate is formed of the condensable vapor on static mixer surfaces within a static mixer heat exchanger. The entrained reaction product solids are captured in the condensate which can be collected for further processing, such as return to the reaction situs. In production of silicon imide, optionally integrated into a production process for making silicon nitride caramic, wherein reactant feed gas comprising silicon halide and substantially inert carrier gas is reacted with liquid ammonia in a reaction vessel, silicon imide reaction product solids entrained in a gaseous outflow comprising residual carrier gas and vaporized ammonia can be captured by forming a condensate of the ammonia vapor on static mixer surfaces of a static mixer heat exchanger.

Abstract: An autoclave-type reaction vessel has a mechanism for stirring and recirculating the cocoa solution, the mechanism having a greater mechanical performance which allows for an increase in the efficiency of the various processing steps, in particular via an increase in the water content of the solution. In a closed vat (1), stirring elements (32 to 35) are mounted on a hollow rotatable shaft (6) driven by a back-geared motor (7). Some of the solution is drawn off at the bottom of the vat by an external pump (36) which delivers it up the inside of the hollow shaft (6) to a spraying head (41). Processing fluids (48, 49) such as neutral gases and alkaline solutions may be added to the solution before it reaches the pump (36).

Abstract: A method for introducing gases into liquids, wherein a stirred kettle is used which has the form of a cylindrical vessel in which the length/diameter ratio should be at least 1; and wherein the stirred kettle is filled to a level of more than 70% with the liquid into which gas is to be introduced, the gas feed rate is adapted to the absorption capacity of the liquid, and the stirrer speed is adjusted such that the largest coherent amount of gas is 10% of the volume of the stirred kettle.

Abstract: A device for suspending solid particles in a turbulent fluid for the purpose of concentrating particles of interest such as mineral particles comprises an upright column provided with a plurality of impellers spaced along a rotatable shaft extending centrally within the column. An inlet is provided near the bottom of the column to introduce compressed gas which is dispersed by the rotating impellers to create a rising column of bubbles through a slurry of particles in a liquid so that a gas to liquid gradient is provided along the column. Disks are spaced along the shaft between the impellers, and baffles are provided longitudinally at the inner surface of the column to control the swirling of the fluid caused by the impellers.

Abstract: The invention relates to a process for introducing gases into liquids, a stirred kettle being used which has the form of a cylindrical vessel in which the length/diameter ratio should be at least 1. The stirred kettle is filled to a level of more than 70% with the liquid into which gas is to be introduced, the gas feed rate is adapted to the absorption capacity of the liquid, and the stirrer speed is adjusted such that the largest coherent gas space amounts, as a maximum, to 10% of the volume of the stirred kettle.

Abstract: An agitator device for charging gas into PUR-components and for the homogenization of the PUR-components and the gas for the production of a foam material includes a pressure vessel for containing the mixture of components and gas with a stirring device extending into the body of the mixture. The stirring device includes a shaft which can be driven in opposite directions. First and second stirring elements are located on the shaft. In one direction of rotation only the first stirring elements operate to charge gas into the PUR-components and when the shaft is driven in the other direction both the first and second stirring elements operate to homogenize the mixture. In one arrangement, due to the direction of rotation, the second stirring elements can be pivotally displaced between a stirring position and an inactive position.

Abstract: The percentage of entrapped air in mortar, plaster, concrete or a like building material which is prepared on a continuous basis is increased, preferably by at least 100 percent, by providing a mixing chamber with one or more barriers which oppose the progress of a mixture of solid and liquid constituents toward the outlet so that each increment of the mixture dwells in the mixing chamber for a relatively long interval of time which exceeds 15 seconds and can even exceed 40 or 50 seconds. The mixing chamber defines a sump for a supply of the mixture, and the rate at which the material leaves the chamber equals or approximates the rate of admission of constituents into the chamber so that the quantity of material which forms the supply is constant. Such supply is agitated by blades, paddles, vanes, grates, lattices or like devices to ensure continuous penetration of air into the material which dwells in, as well as the material which advances through, the mixing chamber.

Abstract: A foam breaker for a fermentation reactor has one or more curved rods, preferably hollow rods with open ends (tubes), and an arrangement for so mounting these on the rotor of the reactor that they rotate with the rotor. The rods or the tubes have leading ends or inlets respectively which scoop up liquid of the liquid phase contained in the reactor, and opposite closed ends or outlets respectively at or through which this liquid is slung away or expelled in form of jets which pass through and destroy a layer of foam that forms above the liquid phase in the reactor.