Disclosed is an apparatus that is an attrition mill for grinding or comminuting ores, mine wastes, and radioactive wastes some of which may comprise metals, which may include uranium and/or cesium and/or mercury and/or thorium and/or rare earth elements. Also disclosed are processes that employ the apparatus for combined grinding and optionally leaching metals from ores and wastes. Some such methods comprise an optional step of grinding and mixing the ore or waste with a solid inorganic base with water addition or with an aqueous inorganic base, follow by a step of grinding and mixing the ore or waste with an aqueous inorganic acid with or without leaching salt addition, to solubilize the metals present in the ore or the waste. The disclosed apparatus and methods, in some embodiments, enable efficient grinding and attrition of ores substrates and mine wastes even without need for grinding media.

Disclosed is an apparatus that is an attrition mill for grinding or comminuting ores, mine wastes, and radioactive wastes some of which may comprise metals, which may include uranium and/or cesium and/or mercury and/or thorium and/or rare earth elements. Also disclosed are processes that employ the apparatus for combined grinding and optionally leaching metals from ores and wastes. Some such methods comprise an optional step of grinding and mixing the ore or waste with a solid inorganic base with water addition or with an aqueous inorganic base, follow by a step of grinding and mixing the ore or waste with an aqueous inorganic acid with or without leaching salt addition, to solubilize the metals present in the ore or the waste. The disclosed apparatus and methods, in some embodiments, enable efficient grinding and attrition of ores substrates and mine wastes even without need for grinding media.

Disclosed is an apparatus that is an attrition mill for grinding or comminuting ores, mine wastes, and radioactive wastes some of which may comprise metals, which may include uranium and/or cesium and/or mercury and/or thorium and/or rare earth elements. Also disclosed are processes that employ the apparatus for combined grinding and optionally leaching metals from ores and wastes. Some such methods comprise an optional step of grinding and mixing the ore or waste with a solid inorganic base with water addition or with an aqueous inorganic base, follow by a step of grinding and mixing the ore or waste with an aqueous inorganic acid with or without leaching salt addition, to solubilize the metals present in the ore or the waste. The disclosed apparatus and methods, in some embodiments, enable efficient grinding and attrition of ores substrates and mine wastes even without need for grinding media.

Disclosed is an apparatus that is an attrition mill for grinding or comminuting ores, mine wastes, and radioactive wastes some of which may comprise metals, which may include uranium and/or cesium and/or mercury and/or thorium and/or rare earth elements. Also disclosed are processes that employ the apparatus for combined grinding and optionally leaching metals from ores and wastes. Some such methods comprise an optional step of grinding and mixing the ore or waste with a solid inorganic base with water addition or with an aqueous inorganic base, follow by a step of grinding and mixing the ore or waste with an aqueous inorganic acid with or without leaching salt addition, to solubilize the metals present in the ore or the waste. The disclosed apparatus and methods, in some embodiments, enable efficient grinding and attrition of ores substrates and mine wastes even without need for grinding media.

Disclosed is an apparatus that is an attrition mill for grinding or comminuting ores, mine wastes, and radioactive wastes some of which may comprise metals, which may include uranium and/or cesium and/or mercury and/or thorium and/or rare earth elements. Also disclosed are processes that employ the apparatus for combined grinding and optionally leaching metals from ores and wastes. Some such methods comprise an optional step of grinding and mixing the ore or waste with a solid inorganic base with water addition or with an aqueous inorganic base, follow by a step of grinding and mixing the ore or waste with an aqueous inorganic acid with or without leaching salt addition, to solubilize the metals present in the ore or the waste. The disclosed apparatus and methods, in some embodiments, enable efficient grinding and attrition of ores substrates and mine wastes even without need for grinding media.

Disclosed is an apparatus that is an attrition mill for grinding or comminuting ores, mine wastes, and radioactive wastes some of which may comprise metals, which may include uranium and/or cesium and/or mercury and/or thorium and/or rare earth elements. Also disclosed are processes that employ the apparatus for combined grinding and optionally leaching metals from ores and wastes. Some such methods comprise an optional step of grinding and mixing the ore or waste with a solid inorganic base with water addition or with an aqueous inorganic base, follow by a step of grinding and mixing the ore or waste with an aqueous inorganic acid with or without leaching salt addition, to solubilize the metals present in the ore or the waste. The disclosed apparatus and methods, in some embodiments, enable efficient grinding and attrition of ores substrates and mine wastes even without need for grinding media.

The invention relates to a unit for the micronization of a solid active agent, such as a salt, preferably table salt (NaCI), for inhalation, comprising a micronizer driven by a motor. The unit according to the invention is characterised in that micronization is performed by a unit constituted by a closed rotary drum (2) receiving a solid active agent having the same grain size, preferably 0.1-4 mm, as table salt (NaCI), where the wall surfaces of the micronizer unit are made at least in part of a material having a filtering capacity of 0.1-1000 m, the material preferably being a mesh-like or microperforated material. A further unit according to the invention is characterised in that the micronizer consists of a rotary block (23) made of the active agent, a friction block (24) adapted to be in frictioning relation with the rotary block, and a clamping mechanism (25) adapted for holding the friction block (24) in position and for clamping the friction block (24) to the rotary block (23), the micronizer being disposed in a closed housing (11), and the wall surfaces of the housing (11) being at least in part made of a material having a filtering capacity of 0.1-1000 m.

A micronizing device including a positive displacement pump configured to rotate a vaned wheel from a side of a suction port of a case to a side of a delivery port of the case opposite to a partitioning wall, transport fluid to a rotation direction of the vaned wheel, pressure the fluid in a pump chamber which converges from the side of the suction port of the case to the side of the delivery port, and deliver the fluid from the delivery port of the case, and a side end surface reaching a vane from a boss portion of the vaned wheel and a side end surface of the partitioning wall of the case include grinding surfaces, and the sample is micronized by way of grinding caused by rotation of the vaned wheel and by way of shearing caused by the vane of the vaned wheel on these grinding surfaces.

A micronizing device including a positive displacement pump configured to rotate a vaned wheel from a side of a suction port of a case to a side of a delivery port of the case opposite to a partitioning wall, transport fluid to a rotation direction of the vaned wheel, pressure the fluid in a pump chamber which converges from the side of the suction port of the case to the side of the delivery port, and deliver the fluid from the delivery port of the case, and a side end surface reaching a vane from a boss portion of the vaned wheel and a side end surface of the partitioning wall of the case include grinding surfaces, and the sample is micronized by way of grinding caused by rotation of the vaned wheel and by way of shearing caused by the vane of the vaned wheel on these grinding surfaces.