A system for coating fertilizer substrates is provided. The system comprises a mixing unit wherein the mixing unit comprises a container bowl having an inlet portion and an outlet portion wherein the inlet portion is operatively fastened to a hot air conduit having a blowing unit connected at one end. The invention also relates to a process for coating fertilizer substrates and the coated substrates thereof.

A fluidized bed cooler for cooling a urea-containing granular material may include a cooler chamber having a product inlet opening, a product outlet opening, a perforated plate disposed in the cooler chamber, and at least one cooling medium entry opening disposed beneath the perforated plate. The product inlet opening may be disposed above the perforated plate, and a baffle plate may be disposed between the product inlet opening and the perforated plate. A distributor plate may be disposed between the baffle plate and the perforated plate. An area of the distributor plate may be 10% to 50% greater than an area of the baffle plate.

An apparatus for forming an electrode film mixture can have a first source including a polymer dispersion comprising a liquid and a polymer, a second source including a second component of the electrode film mixture, and a fluidized bed coating apparatus including a first inlet configured to receive from the first source the dispersion, and a second inlet configured to receive from the second source the second component.

Disclosed herein is a composite magnetic powder that includes an iron-containing magnetic powder and an insulating layer comprising a silicon oxide formed on a surface of the iron-containing magnetic powder. The insulating layer contains pores, and an area ratio of the pores in a cross section of the insulating layer is 5% or less.

An exemplary embodiment of the present invention provides a filler comprising a silica core, a first layer in communication with the core, and a second layer in communication with the first layer. The presence of the second layer can decrease the coefficient of thermal expansion, decrease the composite modulus, and increase the glass transition temperature of the modulus as compared to fillers without a second layer.

A particle production apparatus 1 includes a processing section 3 in which a processing liquid is allowed to adhere to a surface of each of inorganic particles contained in a powder material, a chamber 4 connected to the processing section 3 at a downstream side thereof in which the powder material is separated from gas carrying the powder material, a powder material supply device 50 having a supply portion 5 and a supply unit 6 for supplying the powder material and the like into the processing section 3, and a processing liquid spraying device 70 having a nozzle 7, a pump 8, a supply unit 9 for supplying the processing liquid, a high-pressure gas (air) generating unit 11 and the like. The processing liquid spraying device 70 is configured to spray the processing liquid as droplets onto the powder material just after the powder material being supplied into the processing section 3. Preferably, a volume of the processing section 3 is smaller than a volume of the chamber 4.

An insulated structure includes a plurality of walls and a cavity defined by the plurality of walls. A core material is disposed within the cavity. The core material includes particles with a diameter that is in a range of 80-1600 μm. The core material disposed within the cavity can have a density in a range of greater than 350 kg/m.sup.3 to 600 kg/m.sup.3. Methods of manufacturing the insulated structure also disclosed.

Methods of making and resultant acidulent/carbohydrate agglomerates. The acidulent may be citric acid having particle sizes ranging from about 1 micron to 20 microns agglomerated with a soluble carbohydrate co-agglomerate to formulate the various acidulent/carbohydrate agglomerates. In certain embodiments, the carbohydrate co-agglomerate may be maltodextrin to formulate citric acid/maltodextrin agglomerates. These citric acid/maltodextrin agglomerates are shelf stable when dry, have improved flowability, compressibility, mixability; dissolve easily and quickly in water; and provide an easy ready-to-use formulation that is suitable for use in compounding various food and pharmaceutical products.

This coating device 1 comprises a dispersing/mixing part 2, a conveying part 3, and a collecting part 4. A raw material powder and a coating solution are supplied to the dispersing/mixing part 4 as a slurry. In the dispersing/mixing part 2, the slurry (mixture) in which the raw powder and the coating solution have been mixed is dispersed by means of an air flow of a high-pressure fluid into a powder, a film of the coating solution having adhered to the surface of the powder. The powder is introduced from the dispersing/mixing part 2 to the conveying part 3t and is conveyed with the conveying part 3 oriented toward the collecting part 4. While the powder is being conveyed, the coating solution that has adhered to the particle surfaces dries, whereby a powder in which the particle surfaces ares coated with a precursor is produced. A powder flow introduced into the collecting part 4 passes through a bag filter 54. This causes the powder to be captured by the bag filter 54.

A process for the finishing of urea comprising: (a) removing water from an aqueous urea solution in a first evaporation and condensation section, obtaining a urea melt; (b) subjecting said urea melt to a finishing treatment comprising granulation and resulting in solid urea and air contaminated with urea dust and ammonia; (c) subjecting said contaminated air to acid scrubbing, producing an aqueous solution comprising urea and ammonium salts; (d) subjecting at least part of said aqueous solution to evaporation in a second evaporation section, obtaining a liquid stream comprising urea and ammonium salts and a gaseous stream; (e) condensing said gaseous stream in a second condensation section, obtaining a recycle aqueous stream; (f) using at least a part of said recycle aqueous stream for the scrubbing of contaminated air; (g) converting at least a portion of said liquid stream comprising urea and ammonium salts into solid particles, and (h) using said solid particles as seeds for the granulation; a corresponding urea plant and method of revamping a urea plant are also disclosed.