Did You Know...
...that a workman who left the soap mixing machine on too long was responsible for making Ivory Soap? He was so embarrassed by his mistake that he threw the mess in a stream. Imagine his dismay when the evidence of his error floated to the surface! Result: Ivory soap, the soap that floats.
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| Number | Title | Issue Date |
| 7197952 | Testing method for ball mills The invention relates to a testing method for designing a semiautogenous or an autogenous grinding circuit with at least one ball mill for grinding ore. In the method the ore is tested in two separate testing steps using the same testing sample of ore. ... | 04/03/2007 |
| 7179374 | Device for shear-thinning of solids containing material The invention relates to a device to be used in connection with thickening and clarifying apparatuses for shear-thinning of solids containing material, such as slurry, which device contains one conduit for feeding material to be shear-thinnned and another conduit fo... | 02/20/2007 |
| 7122109 | Method for the improvements of current efficiency in electrolysis The invention relates to a method for the improvement of current efficiency in electrolysis. According to the method, a theoretical cell voltage is first calculated, which is compared with the measured voltage. The cumulative difference between the theoretical and m... | 10/17/2006 |
| 7118719 | Method for the hydrolytic precipitation of iron The invention relates to a method for the hydrolytic precipitation of iron as jarosite from a sulphate-containing solution in connection with zinc recovery from zinc calcine. The recovey contains neutral leach, ferrite leach, zinc electrolysis and iron precipitation... | 10/10/2006 |
| 7070174 | Mixing apparatus for mixing gas in a closed reactor The invention relates to a mixing apparatus and a method for mixing gas in a closed mixing reactor, which uses gas as a process chemical with a high efficiency and where the content of pulverous solids in the solution is great. The aim is to obtain a flow in the rea... | 07/04/2006 |
| 7044996 | Method for reducing build-up on a roasting furnace grate The present invention relates to method, which helps to reduce and remove the build-up forming on the grate of a fluidized-bed furnace in the roasting of fine-grained material such as concentrate. The concentrate is fed into the roaster from the wall of the furnace,... | 05/16/2006 |
| 7002171 | Method for improving the quality of cathodes in electrolysis The invention relates to the improvement in the quality of cathodes produced in an electrolysis process. The surface of a cathode lifted from the cell during the cathode cycle is photographed and the physical quality of the cathode can be investigated in real time b... | 02/21/2006 |
| 6991111 | Flotation mechanism and cell The present invention relates to a froth flotation mechanism located in a flotation cell, comprising a directional element suspended from the lower end of a hollow shaft extending to the lower section of the cell and vertical vanes attached to said directional eleme... | 01/31/2006 |
| 6955140 | Method and apparatus for increasing the capacity of a waste heat boiler in a metallurgic smelting furnace The invention relates to a method for increasing the capacity of a waste-heat boiler (1) processing gases obtained from a metallurgic smelting furnace, such as a flash smelting furnace, and for reducing dust accretions, where liquid is added into the waste-he... | 10/18/2005 |
| 6953547 | Method and apparatus for feeding solid material and oxidizing gas into a suspension smelting furnace The invention relates to an apparatus for feeding finely divided solids, containing at least sulphidic metal concentrate, and oxygenous oxidizing gas into a suspension smelting furnace, said apparatus comprising elements for conducting solids and oxidizing gas into ... | 10/11/2005 |
| 6945408 | Flotation machine The invention relates to a flotation machine, particularly to a flotation machine rotor, that is used for dispersing air, supplied via the rotor axis, to the surrounding slurry, and in which rotor there are formed alternating air ducts and slurry grooves, so that th... | 09/20/2005 |
| 6936216 | Melt launder The invention relates to a melt launder (1, 9, 10) comprising a bottom and edged, said melt launder being particularly meant to be used for tapping a molten phase, such as slag, from a smelting furnace, which melt launder is manufactured of copper or copper a... | 08/30/2005 |
| 6937167 | Method for joining a jacket element and a core element together A method for joining a highly electroconductive core element (2) to a jacket element (1) made of refined steel. In said method, the electroconductive core element (2), such as a copper bar, and the joining agent element (3) are inserted i... | 08/30/2005 |
| 6929677 | Method for leaching copper concentrate This invention relates to a method where sulfidic iron-bearing copper concentrate is leached on the countercurrent principle, in a chloride environment. The leaching takes place with the aid of bivalent copper and an oxygen-bearing gas as a multi-stage continuous pr... | 08/16/2005 |
| 6267900 | Method and apparatus for adjusting the boundary surface between two controllably flowing and mutually separable and for conducting both solutions out of the separation part The invention relates to a method for adjusting the boundary surface between the two mutually separable solutions in liquid--liquid extraction at the discharge end of the separation part and for preventing the aeration of the solutions when discharging th... | 07/31/2001 |
| 6253927 | Roller screen The invention relates to a roller screen for screening pellets for sintering, the roller screen including several successive rotating rollers that are spaced apart and arranged transversally in relation to the proceeding direction of the material. The rol... | 07/03/2001 |
| 6197249 | Apparatus for conducting gas through material to be sintered The invention relates to an apparatus for conducting gas through material (1) to be sintered, which material is set in an essentially continuous motion, particularly when gas is used for sintering the material; said apparatus comprises a flow guide (7) fo... | 03/06/2001 |
