A method of manufacturing an inorganic material includes: a step (A) of preparing a first inorganic material as a raw material; a step (B) of obtaining a second inorganic material by crushing the first inorganic material using a ball mill to obtain fine particles of the first inorganic material, the ball mill including a cylindrical container and crushing balls; and a step (C) of separating the second inorganic material from the crushing balls to which the second inorganic material is attached, in which the step (B) includes a step (B1) of putting the first inorganic material and the crushing balls into the cylindrical container and subsequently rotating the cylindrical container about a cylindrical shaft and a step (B2) of moving the cylindrical container such that the first inorganic material moves in the cylindrical shaft direction.

The present invention relates to apparatus for simultaneous grinding and froth flotation of at least one crude mineral and/or pigment, a process carried out in the apparatus for manufacturing at least one ground mineral and/or pigment, use of the ground mineral and/or pigment bearing phase obtainable by the process in paper applications as well as in paper, plastics, paints, coatings, adhesives, sealants, food, feed, pharma, concrete, cement, cosmetic, water treatment and/or agriculture applications, preferably in a wet end process of paper machine, in cigarette paper, board, and/or coating applications, or as support for rotogravure and/or offset and/or ink jet printing and/or continuous ink jet printing and/or flexography and/or electrophotography and/or decoration surfaces and the ground mineral and/or pigment bearing phase or ground mineral and/or pigment obtainable by the process.

A method is disclosed for crushing material to be ground with a mill which contains a grinding chamber which is connected to a feed for material to be ground and to an outlet for ground particles, and contains grinding devices for producing particles of the desired fineness from the fed material to be ground, wherein the grinding takes place in a reducing atmosphere which contains a reduction gas. Also disclosed, is a mill having a grinding chamber which is connected to a feed for material to be ground and to an outlet for ground particles, and contains grinding devices for producing particles of the desired fineness from the fed material to be ground, wherein the grinding chamber contains a reducing atmosphere in which the grinding takes place and which contains a reduction gas.

Methods and apparatuses for producing spherical metallic powders through continuous ball milling are described. The apparatus comprises a comminution component including an inlet to receive a metallic material at a first region within the comminution component and an outlet to dispense the metallic powder from a second region within the comminution component. The apparatus further comprises a plurality of grinding components to grind the metallic material, the plurality of grinding components being arranged within the comminution component. The apparatus comprises a drive component, connected with the comminution component, to induce movement of the metallic material and the plurality of grinding components within the comminution component such that the metallic material is fragmented through contact with the plurality of grinding components at the first region and an external surface of the fragmented metallic material is altered at the second region to produce the metallic powder.

An agitator ball mill including an in particular horizontal grinding container, which has a first end area having a grinding material inlet and a second end area having a grinding material outlet, and a method for operating an agitator ball mill. The agitator ball mill includes a shaft, which can be rotated in the grinding container or in the grinding chamber, respectively, by means of a drive unit and which is formed as agitator shaft at least in sections and which is equipped with agitator elements, as well as a separating device. The separating device includes a classifier rotor, which is arranged on the agitator shaft axially spaced apart from the grinding material outlet and has a rotatable rotor cage, as well as a screen unit, which is arranged within the rotor cage and which is fastened to the classifier rotor.

A stirred ball mill including a grinding container, in which an agitator shaft having grinding elements is arranged, whereby a grinding chamber is formed between the grinding container and the agitator shaft, into which chamber the grinding elements extend and into which at least one inlet duct for grinding material opens and in which a dynamic separation device for grinding bodies is provided, the separation device having recesses for feeding back the grinding bodies, and in which the agitator shaft has at least one recess, which widens the separation device and extends in the axial direction into the grinding chamber for improved distribution of the grinding bodies in the grinding chamber.

A device (1) for mixing which comprises a housing (2) with at least one inlet (3). A first process region (4) mixes the supplied substances which are introduced via the inlet (3) while a second process region (5) discharges the mixture via an outlet (6). A first gap-forming element (7), preferably a rotor, is assigned to the first process region (4) and comprises openings (8), and a second gap-forming element (9), preferably a stator, is assigned to the second process region (5) and corresponds with the first gap-forming element (7), wherein the second gap-forming element (9) comprises openings (10). At least one of the gap-forming elements (7, 9) is rotatable relative to the other gap-forming element (7, 9). The openings (8, 10) of the first and second gap-forming elements (7, 9) are arranged such that a mixture passes through the openings from the first into the second process region.

The invention relates to a circular disc element (10) comprising at least two beam elements (20). Each beam element extends beyond an outer circumference (11) of the circular disc element (10) in an extension direction (100) which is parallel to a radial direction (101) of the disc element (101). The circular disc element (10) further comprises at least two holes (30) extending through the circular disc element (10) in a longitudinal direction (110) which is substantially perpendicular to each of the extension directions (100) of the at least two beam elements (20). The at least two 10beam elements (20) are equidistantly spaced apart from each other with respect to a circumferential direction (120) of the circular disc element (10), which circumferential direction (120) corresponds to the outer circumference (11) of the circular disc element (10). The invention further relates to a use of the circular disc element (10) as grinding means in a grinding process, to a device for grinding slurry (50) as well as to a method for grinding slurry (50).

Provided is a method of separating an inorganic material from crushing balls to which the inorganic material is attached, the method including: a step of causing the crushing balls to collide against a mesh member.

A grinding device suitable for operating inside a flotation cell which includes three zones including a collecting zone in which particles are collected though a settling process, a grinding zone in which particles undergo a size reduction process and a pumping zone from which milled particles are recycled to the flotation cell.