Abstract: Improved polycrystalline silicon manufacture is achieved by providing polycrystalline silicon rods, comminuting the polycrystalline silicon rods into polycrystalline silicon chunks, and packing the polycrystalline silicon chunks by introducing the polycrystalline silicon chunks into a solid and intrinsically stable container comprising a base, a wall and an opening, the container having the form of a truncated cone or truncated pyramid with two different-sized areas of base and opening and with a lateral surface, the base area being greater than the area of the opening of the container, the wall of the container having a thickness of at least 0.5 mm, and an angle between a lateral line and a vertical axis of cone or pyramid being at least 2°.

Abstract: A method is disclosed for packaging polycrystalline silicon, in which a plastic bag is filled with polycrystalline silicon by means of a filling device, which has a freely suspended energy absorber consisting of a nonmetallic low-contamination material, wherein the plastic bag is pulled over the energy absorber and filled with polycrystalline silicon, and the plastic bag is lowered downward during the filling, so that the silicon slides into the plastic bag. Also disclosed is a method for packaging polycrystalline silicon, in which a plastic bag is filled with polycrystalline silicon by means of a filling device, wherein a storage container has an opening through which it is filled with silicon, the plastic bag being pulled over the storage container after filling the storage container with silicon and the storage container subsequently being rotated so that the silicon slides out of the storage container into the plastic bag.

Abstract: Disclosed is a method for dosing and packaging polysilicon chunks, wherein a product flow of polysilicon chunks is transported via a feed channel, separated by at least one screen into coarse and fine chunks, weighed and dosed to a target weight by a dosing balance, discharged via a discharge channel and transported to a packaging unit where a first plastic bag is filled with the polysilicon chunks and sealed, the plastic bag containing polysilicon chunks being packaged with a further plastic bag which is formed by a shaper and subsequently welded, wherein the at least one screen and the dosing balance at least partially include a hard metal on their surfaces and the shaper for forming the plastic bag includes a wear-resistant coating. Also disclosed are a dosing unit, a packaging unit and a device for dosing and packaging polysilicon chunks, which contains a dosing unit and a packaging unit.

Abstract: A method is disclosed for packaging polycrystalline silicon, in which a plastic bag is filled with polycrystalline silicon by means of a filling device, which has a freely suspended energy absorber consisting of a nonmetallic low-contamination material, wherein the plastic bag is pulled over the energy absorber and filled with polycrystalline silicon, and the plastic bag is lowered downward during the filling, so that the silicon slides into the plastic bag. Also disclosed is a method for packaging polycrystalline silicon, in which a plastic bag is filled with polycrystalline silicon by means of a filling device, wherein a storage container has an opening through which it is filled with silicon, the plastic bag being pulled over the storage container after filling the storage container with silicon and the storage container subsequently being rotated so that the silicon slides out of the storage container into the plastic bag.

Abstract: Disclosed is a method for dosing and packaging polysilicon chunks, wherein a product flow of polysilicon chunks is transported via a feed channel, separated by at least one screen into coarse and fine chunks, weighed and dosed to a target weight by a dosing balance, discharged via a discharge channel and transported to a packaging unit where a first plastic bag is filled with the polysilicon chunks and sealed, the plastic bag containing polysilicon chunks being packaged with a further plastic bag which is formed by a shaper and subsequently welded, wherein the at least one screen and the dosing balance at least partially include a hard metal on their surfaces and the shaper for forming the plastic bag includes a wear-resistant coating. Also disclosed are a dosing unit, a packaging unit and a device for dosing and packaging polysilicon chunks, which contains a dosing unit and a packaging unit.

Abstract: Polysilicon is crushed with a minimum of manual and machine crushing steps by utilizing a large diameter roll crusher, the circumferential crushing surface of which is formed of a plurality of reversibly mounted, close fitting hard metal plates. Reproducible crushing along with such low metal contamination that subsequent cleaning of the crushed polysilicon is not necessary are both obtained.

Abstract: Polysilicon is crushed with a minimum of manual and machine crushing steps by utilizing a large diameter roll crusher, the circumferential crushing surface of which is formed of a plurality of reversibly mounted, close fitting hard metal plates. Reproducible crushing along with such low metal contamination that subsequent cleaning of the crushed polysilicon is not necessary are both obtained.

Abstract: A process for the cost-effective packaging of high purity polysilicon fragments has the polysilicon fragments being packaged automatically.