Abstract: The process for separating the solid particles in the column is based on the intermittent supply of pressurized suspension to the apparatus which pressure supplies the energy required for feeding the suspension near one end into the column, the squeezing of the suspension liquid out of the suspension under withdrawal of the suspension liquid from the column near that same end of the column, the compaction of the solid particles, the transport of the compacted bed of particles towards the opposite end of the column and the washing of the compacted bed with wash liquid, the bed is mechanically disintegrated, the product of this disintegration is removed in suspended form while maintaining a wash front separating the non washed and washed parts in the compacted bed.

Abstract: An apparatus for treating in counter current of suspended particles with a liquid, whereby the particles and the liquid are transferred in opposite directions through a contact zone which, at some places, spaced in axial direction, is stirred in planes perpendicular to the centre line of the contact zone, in which the contact zone is one continuous space and that the volume fraction of the solid matter in the contact zone is maintained at a value between 0.20 and 0.55.

Abstract: An apparatus for concentrating a suspension consisting of a hollow cylinder in which one or more tubes of a constant outward diameter extend in axial direction, in the wall of each tube at least one filter being mounted forming the only direct connection between the interior of the tube and the interior of the cylinder. Two or more of such apparatus can be connected in series in order to form a cascade.

Abstract: An apparatus for concentrating a suspension consisting of a hollow cylinder in which one or more tubes of a constant outward diameter extend in axial direction, in the wall of each tube at least one filter being mounted forming the only direct connection between the interior of the tube and the interior of the cylinder. Two or more of such apparatus can be connected in series in order to form a cascade.

Abstract: Apparatus for dispensing a liquid beverage concentrate comprises a concente reservoir, a resilient dispensing tube having one end in communication with the reservoir via a non-return valve opening into the tube and having an opposite dispensing end provided with a non-return valve opening outwardly, and a pressure fluid device for squeezing a portion of the dispensing tube so as to force a quantity of concentrate through the dispensing end of the tube, the pressure fluid device including a deformable sleeve loosely fitting over the tube and separating the tube from the pressure fluid.

Abstract: Apparatus for separating solid particles from a liquid suspension and/or purification or leaching of solid particles, consisting of a cylindrical column which near one end is provided with a rotatable scraper for the disintegration of a washed compacted bed, an inlet for wash liquid and an outlet for the disintegrated particles, and contains near the opposite end of the column, means for supplying liquid suspension, a non movable screening device, which screening device is only permeable for the suspension liquid and an outlet for the liquid.

Abstract: Process for continuous crystallization of a liquid mixture in which the mixture is led through a cascade of cooling sections. The temperature in the first section is such that a part of the mixture crystallizes, the temperature in each succeeding section is lower than in the preceding section. The temperature in the last section is such that not the whole of the liquid mixture solidifies. The crystals kept suspended in the liquid are led through the cascade. In one section, not being the last one, the crystal and liquid flow is divided in two flows. One flow mainly formed by the crystals, the other by the liquid. A portion of the divided flow is recycled to the dividing section to keep the crystal volume fraction at a desired value.

Abstract: A method for treating in counter current of suspended particles with a liquid, whereby the particles and the liquid are transferred in opposite directions through a contact zone which, at some places, spaced in axial direction, is stirred in planes perpendicular to the center line of the contact zone, in which the contact zone is one continuous space and that the volume fraction of the solid matter in the contact zone is maintained at a value between 0.20 and 0.55.

Abstract: This invention concerns an improved process for separating one crystallize component from a liquid containing a plurality of components, which comprises passing a stream of said liquid successively through at least part of a series of zones of successively lower temperatures including the zone of lowest temperature, so as to induce the formation of crystals of said one component in each of said zones, passing the crystals formed in each of said zones in a direction countercurrent to the direction of the stream of liquid through at least part of said zones, including the zone of highest temperature, separating the crystals present in the zone of highest temperature from their mother liquor and recovering at least part of these crystals, separating the crystals in the zone of lowest temperature from their mother liquor and recovering that mother liquor, and recirculating part of said crystals present in one zone, from that zone to a zone of lower temperature.

Abstract: Process for separating the ice crystals contained in a slurry of an aqueous olution and ice crystals from the aqueous solution and washing the ice crystals with an aqueous wash liquid, whereby a packed bed of ice crystals is created which is subjected to a continuous translatory movement, while a washfront is being created within the packed bed of ice crystals between the aqueous solution and the aqueous wash liquid, the aqueous solution and aqueous wash liquid adjacent to the washfront being substantially stagnant, a stable washfront being created lying in a plane perpendicular to the translatory movement of the packed bed of ice crystals.

Abstract: An apparatus for separating the ice crystals contained in a slurry of an eous solution and ice crystals from the aqueous solution and washing the ice crystals with an aqueous wash liquid, whereby a packed bed of ice crystals is created which is subjected to a continuous translatory movement, while a washfront is being created within the packed bed of ice crystals between the aqueous solution and the aqueous wash liquid, the aqueous solution and aqueous wash liquid adjacent to the washfront being substantially stagnant, a stable washfront being created lying in a plane perpendicular to the translatory movement of the packed bed of ice crystals.

Abstract: Apparatus for dispensing a liquid beverage concentrate comprises a concente reservoir, a resilient dispensing tube having one end in communication with the reservoir via a non-return valve opening into the tube and having an opposite dispensing end provided with a non-return valve opening outwardly, and a pressure fluid device for squeezing a portion of the dispensing tube so as to force a quantity of concentrate through the dispensing end of the tube, the pressure fluid device including a deformable sleeve loosely fitting over the tube and separating the tube from the pressure fluid.

Abstract: Process for separating the ice crystals contained in a slurry of an aqueous solution and ice crystals from the aqueous solution and washing the ice crystals with an aqueous wash liquid, whereby a packed bed of ice crystals is created which is subjected to a continuous translatory movement, while a washfront is being created within the packed bed of ice crystals between the aqueous solution and the aqueous wash liquid, the aqueous solution and the aqueous wash liquid adjacent to the washfront being substantially stagnant, a stable washfront being created lying in a plane perpendicular to the translatory movement of the packed bed of ice crystals.

Abstract: Improved apparatus for operating a continuous process for the freeze concentration of aqueous solutions, such as fruit juices, wine, beer, coffee extract and the like.

Abstract: A process for the concentration of aqueous solutions which in addition to non-volatile components contain alcohol and small amounts of volatile aroma components. First the alcohol and the volatile aroma components are for the greater part separated from the solution by distillation, and condensed; subsequently the remaining aqueous solution is concentrated by freeze concentration; and finally the concentrate thus produced is mixed with said condensate.

Abstract: Improved apparatus for operating a continuous process for the freeze concentration of aqueous solutions, such as fruit juices, wine, beer, coffee extract and the like.

Abstract: A process and apparatus are described for separating crystallizable mater from a liquid multi-component system involving a series of cycles wherein (a) the liquid is confined in a space having a large heat exchange surface; (b) heat is withdrawn from said surface to crystallize at least part of said material; (c) the crystallizable material is removed; (d) the crystallized material so removed is sub-divided; and (e) the resulting product is treated to separate the crystallized material from the rest of the multi-component system.

Abstract: A two stage continuous process and apparatus for crystallization of a solute or solvent from a solution comprising, first, passing the solution through a precrystallization zone with simultaneous cooling and/or rapid evaporation of the solvent resulting in the formation of small crystal nuclei, second, mixing the suspension from the precrystallization zone in a recrystallization zone with a suspension containing crystals of a much greater size than the crystal nuclei formed in the precrystallization zone wherein the crystal nuclei dissolve in the solution of the recrystallization zone and recrystallize on the larger crystals, the recrystallization step being carried out substantially adiabatic, and selectively recirculating part of the solution from the crystallization zone substantially crystal free to the precrystallization zone.