Outline
Process and apparatus for producing elementary nanoparticulate mineral components and rare metal oxides therefrom using primary and secondary mineral resources by filling raw material (1,15,16,17) into a mixing tank (7), wherein it is diluted with water to a 20% by weight colloidal solution, then the colloidal solution is fed to a colloid mill (8) and dispersed into particles having an average particle size of up to 10 µm, then transferring it to a wet grinding attritor (9), the nanoparticulate colloidal solution thus obtained is passed under pressure to a classifying unit (10) in which its nanocrystallite content is separated into at least two size fractions, each size fraction being dried in a vacuum drier (11), while a further nanocrystallite fraction containing trace elements is separated by the vacuum drier (11), which is passed to a separator (13,11a) where adsorbed rare metal trace elements are separated.
The subject matter is particularly suitable for the disposal of red mud, the extraction of valuable rare earth elements and other secondary industrial raw materials inherent thereof, the cleansing of industrial filter dust hazardous waste, and the extraction of secondary industrial raw materials inherent thereof. The advantage of the technology is that its relatively low energy demand and initial water supply may enable its profitable operation even in areas of use where similar results were not yet economically achievable.

Outline
The present invention relates to an additive for carbon nanotube and plastic composites comprising a functionalized maleic acid anhydride-olefin copolymer, wherein the maleic acid anhydride monomer units are partially or completely converted to dicarboxylic acid ester amide and / or dicarboxylic acid half ester and / or dicarboxylic acid imide monomer units, wherein the number of maleic acid anhydride monomer units of formula (I) is from 1 to 1 to 8. The invented composite can be used, for example, for the production of heavy-duty plastics, aircraft and vehicle body components, structural materials replacing high-strength metal parts, building cladding and components, insulation materials, electrical and thermal coatings, sealants, furniture components, high-strength nets and ropes.

Outline
The present invention relates to a dry-fuel heat-storing apparatus for storing and economically using the thermal energy produced in a combustion apparatus or other heat sources, wherein the heat-storing apparatus is operable at high temperatures. The heat-storing apparatus is operable at high temperatures, said heat-storing apparatus comprising a heat-insulated housing (A), a particulate or granular solid heat storage medium (B) allowing a gaseous heat transfer medium, preferably air to flow therethrough, said heat storage medium being arranged in the heat-insulated housing (A). Said apparatus further comprising a heat input unit (C) connected to a heat source, and a heat removal unit (D) – optionally formed by a Stirling-motor – connected to a heat recovery system, wherein said heat input unit (C) and said heat removal unit (D) are at least in part located within the heat-insulated housing (A). The invention can be advantageously used for dissipating thermal energy produced in combustion devices and other heat sources, storing it at a high energy density till later use.

Outline
Security device for preventing theft of a wheel of a motor vehicle, characterized in that it comprises: a freely rotating ring (1), a core (2) with a threaded hole arranged inside the ring (1), a skirt (4) with a hole for receiving the core (2), which at its outer end it has a connection surface (9) for a standard transmission tool, and where the bore comprises locking elements (7b), it can be moved in the bore of the skirt (4) between a release and a fixing position along the longitudinal direction of the skirt (4) a locking platform (3) provided with locking elements (7a) on the side surface, the side locking elements (7a) of which in the fixing position of the locking platform (3) fit into the locking elements (7b) formed in the bore of the skirt, and further locking means there are locking elements (8a) which, in the release position of the locking platform (3), fit into the locking elements (8b) formed at the outer end of the core (2), and a a safety cylinder lock insert (5) recessed in the casing (4), which has a pivotable pin (6) connected to the locking platform (3) at its inner end.

Outline
Informing consumers about the place of origin and producer of agricultural products is becoming more and more important, in some cases it is also subject to legal regulations. The sticker and painting based marking used so far is polluting and represents food health risk. The invention relates to an apparatus for marking hard-shelled crops (14), especially vegetables and fruits, comprising a marking template (19) with breakthroughs and a marking device (3) for delivering the marking material to the surface of the crop by means of the marking template. The marking device (1) has a marking material reservoir (2) and a fluid channel (4) carrying a marking material (3). The tracer reservoir (2) has a tracer loading port (8) and a tracer outlet (7), wherein the inlet (10) of the fluid channel (4) carrying the tracer (3) is connected to a fluid source (9) at a pressure above ambient pressure.