A method for forming a pelletised evaporite mineral product, the method comprising: pulverising an evaporite mineral feedstock to form a dry powder, mixing the dry powder with a binder in the presence of a liquid to form an intermediate blend; and processing the intermediate blend using a pelletiser to form pellets principally composed of the evaporite mineral.

A coating apparatus having a rotatable drum with at least one moveable separating element arranged on an end side, and granular bodies can be transferred into the drum and/or out of the drum by a movement that leads to release. A separating element can be moved from a closed position into an open position by rotation about an axis of rotation. In the closed position, a subregion lies with its underside against an inner wall of the drum or has a small gap there. In the open position, the subregion on the underside is spaced apart from the inner wall of the drum and there is an opening there through which granular bodies can pass. On the end sides of the drum there are stop elements with which a drum of at least one further module is connectable in order to form a coating apparatus and/or a closure element.

Particle production apparatus 1 including processing section 3 in which a processing liquid is adhered to a surface of each of inorganic particles contained in a powder material, chamber 4 connected to processing section 3 at a downstream side thereof in which the powder material is separated from gas carrying the material, powder material supply device 50 with supply portion 5 and supply unit 6 for supplying the powder material into processing section 3, and processing liquid spraying device 70 having a nozzle 7, a pump 8, a supply unit 9 for supplying the processing liquid, and a high-pressure gas (air) generating unit 11. Processing liquid spraying device 70 is configured to spray 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.

Particle production apparatus 1 including processing section 3 in which a processing liquid is adhered to a surface of each of inorganic particles contained in a powder material, chamber 4 connected to processing section 3 at a downstream side thereof in which the powder material is separated from gas carrying the material, powder material supply device 50 with supply portion 5 and supply unit 6 for supplying the powder material into processing section 3, and processing liquid spraying device 70 having a nozzle 7, a pump 8, a supply unit 9 for supplying the processing liquid, and a high-pressure gas (air) generating unit 11. Processing liquid spraying device 70 is configured to spray 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.

A particulate material coating device, comprising a vertical central column, a supply conduit for supplying the device with particulate material to be coated and a discharge conduit for discharging coated particulate material, a conveying ramp connected to the central column and a plurality of sprayers for spraying a coating agent. The supply means is arranged at the top of the device and the discharge conduit is arranged at the base of the device. The conveying ramp comprises a plurality of ramp sections arranged one above the other so as to define, between two successive sections, a drop zone for the particulate material to fall between each of the successive sections. The device aims to ensure that the particulate material is transported without areas of accumulation as well as a homogeneous coating.

A fertilizer product in the form of pellets comprising: at least 80% by mass of an evaporite mineral powder having a mean grain size in the range from 50 to 400 pm; and a binder; the pellets having a compression strength greater than 2 kgf. A coated seed product comprising at least one plant seed and a coating adhered to the exterior of the plant seed, comprising an evaporite material.

The present application is directed towards systems for adding components to materials being fluidized in a vibratory mixer by use of atomizers or sprayers. A mechanical system can fluidizes, mix, coat, dry, combine, or segregate materials. The system may comprise a vibratory mixer, mixing vessel containing a first material and a sprayer to introduce a second material. The vibratory mixer may generate a fluidized bed of a first material and the sprayer, coupled to the mixing vessel, may introduce a second material onto the fluidized bed to mix the materials in a uniform and even fashion.

A coating composition including an inorganic sol material and an organic colorant is applied to mineral particles and cured at a temperature less than 200 degrees Celsius provides roofing granules with improved luster.

A method for producing coated particles by atomic layer deposition, including the steps of: a) dispersing particles having reactive groups on their surface in an organic solvent, b) adding a first reactant in excess to the reactive groups on the surface, c) mixing the dispersion to react the first reactant with reactive groups on the surface of the particles, d) removing the excess of the first reactant by vacuum or by distillation or by azeotropic distillation, e) adding a second reactant in excess to the reactive groups on the surface obtained in step d), f) mixing the dispersion to react the second reactant with the first reactant on the surface of the particles, g) removing the excess of the second reactant by vacuum or by distillation or by azeotropic distillation.

A system for heating, coating, cooling and screening a granular substrate is provided. The system, such as an apparatus for continuous coating granular particles, includes a preheater apparatus for heating granular particles, a rotary drum having an inlet horizontally coupled to the preheater for receiving heated granular particles directly from the fluidized bed preheater, a coating apparatus positioned within the drum for applying a coating to the heated granular particles, and a cooling apparatus positioned horizontally in association with the drum for cooling the granular particles subsequent to coating.