| Korea Institute Of Geoscience And Mineral Resources Patent applications |
| Patent application number | Title | Published |
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| 20120134901 | HIGHLY EFFICIENT URANIUM LEACHING METHOD USING ULTRASOUND - A highly efficient uranium leaching method using ultrasound is disclosed. The uranium leaching method includes preparing black slate powder containing uranium by pulverizing black slate containing uranium, placing the black slate powder and water in a reaction bath, and performing uranium leaching by adding and mixing sulfuric acid and an oxidant with the black slate powder and water to prepare a mixture in the reaction bath while applying ultrasound to the reaction bath. In this method, uranium leaching efficiency can be maximized by adding sulfuric acid to the uranium ore while applying ultrasound thereto. | 05-31-2012 |
| 20120134900 | URANIUM ION EXCHANGE ADSORPTION METHOD USING ULTRASOUND - Disclosed herein is a uranium ion exchange adsorption method using ultrasound. The method includes placing a slurry obtained by mixing uranium ions, sulfuric acid and an ion exchange resin into a reaction bath, and stirring the slurry in the reaction bath while simultaneously applying ultrasound to the reaction bath to allow the uranium ions to be adsorbed to the ion exchange resin through ion exchange adsorption. The method has an improved ion exchange adsorption rate of the uranium ions. | 05-31-2012 |
| 20120107214 | METHOD FOR PREPARING MICROTUBULAR HALLOYSITE NANOPOWDERS - The present invention provides a method for preparing microtubular halloysite nanopowders by cutting halloysite nanotubes at a high pressure, microtubular halloysite nanopowders prepared by the method, and a cosmetic composition comprising the microtubular halloysite nanopowders. According to the method of the present invention, it is possible to prepare the halloysite nanopowders with a tubular shape using natural halloysite and effectively select a halloysite nanopowder having a desired shape. The microtubular halloysite nanopowders can be used in many industrial fields and used as a container or a carrier for nanoparticles or organic materials such as drugs, air fresheners, cosmetics, agricultural chemical materials, etc. | 05-03-2012 |
| 20110300045 | Economical Sequestration of Carbon Dioxide by the Mixed Gas - Provided is a fixation method of carbon dioxide. The method includes a) grinding waste gypsum to become 200˜300 mesh; b) performing reaction by supplying mixed gas while mixing the ground waste gypsum with aqueous ammonia, and c) separating solid from liquid in the manufactured slurry by centrifugation and drying separated solid and liquid portions with calcite and ammonium sulfate, wherein the mixed gas is formed of nitrogen and carbon dioxide, and the carbon dioxide provides carbon dioxide fixation method containing 5˜25 wt %. When carbon dioxide is fixed by using waste gypsum, reaction efficiency is remarkably high. The fixation method makes more than 95% of supplied carbon dioxide fixed. Also, provided is an economical method that disposes carbon dioxide as a disposal target without its separation, refinement and liquefaction processes, to thereby remarkably reduce the entire process and costs for processes. | 12-08-2011 |
| 20110229640 | FABRICATION METHOD OF CALCIUM CARBONATE THIN FILM WITH SHAPE-CONTROLLED FINESTRUCTURE PATTERN USING ADDITIVE - Disclosed are a method for fabrication of a calcium carbonate thin film comprising adding a calcium agent to a container receiving an additive-dissolved water to dissolve calcium agent and leaving a mixture of the calcium agent and the additive in water for a predetermined period to form a calcium carbonate thin film with a shape-controlled finestructure pattern wherein the pattern is selected from nanostructure pattern, microstructure pattern and a combined nanostructure and microstructure pattern, and, in addition, a calcium carbonate thin film with a shape-controlled microstructure pattern formed by the foregoing method, a metallic film with a shape-controlled microstructure pattern which includes a template comprising the calcium carbonate thin film with a shape-controlled microstructure pattern formed by the foregoing method and a process for fabrication thereof, as well as a polymer with a shape-controlled microstructure pattern having the calcium carbonate thin film with a shape-controlled microstructure pattern formed by the foregoing method and a method for preparation thereof. | 09-22-2011 |
| 20110206547 | SLUDGE SUCTION APPARATUS FOR OFFSHORE STRUCTURE - Disclosed is a sludge suction apparatus for an offshore structure. The sludge suction apparatus includes a housing having an upper mounting hole and a lower mounting hole; a suction valve installed in the lower mounting hole in line with a suction hole to selectively suck sludge according to variation of internal pressure of the housing; an exhaust valve installed in the upper mounting hole to communicate with the exhaust hole and aligned coaxially with the suction valve to exhaust the sludge to an outside through the exhaust hole; | 08-25-2011 |
| 20110089128 | SAMPLE STORAGE APPARATUS - Disclosed is a sample storage apparatus in that a multilayered rotary table is formed in a liquid nitrogen vessel, so that a plurality of sample storage boxes is stored in the multilayered rotary table, whereby it can effectively and maximally ensure the space for storing the samples. The sample storage apparatus includes: a rotating axis | 04-21-2011 |
| 20100295006 | GUIDING DEVICE OF HAULING ROPE FOR TOOLS IN BOREHOLE - The present invention relates to a guiding device of a hauling rope, in more detail, a guiding device of a hauling rope that installed at the top of casing, which controls inserting/withdrawing a hauling rope connected with a Sonde, measuring instrument, which probes, observes, and examines an underground structure, geological features, or soil conditions etc. within borehole. | 11-25-2010 |
| 20100282086 | GROUNDWATER RADON REDUCTION APPARATUS - A groundwater radon reduction apparatus is provided. The groundwater radon reduction apparatus includes: a housing in which groundwater falls down; a rotating member installed in the housing and rotated by a falling force of the groundwater to form the groundwater into water drops; a plurality of power transmission members connected to both ends of the rotating member to transmit power, and receiving the rotating force of the rotating member; and a plurality of ventilation units coupled to one ends of the power transmission members inside the housing, respectively, and rotated together with the power transmission members by the rotation force of the rotating member to discharge radon gases within the water drops to the outside. | 11-11-2010 |
| 20100180972 | DIMPLES LIFTING PIPE FOR MINING DEEP-SEA MINERAL RESOURCES - Disclosed herein is a lifting pipe which is used in a manganese nodule mining system including a collection device for collecting deep-sea manganese nodules and a lifting pump and which has a structure in which dimples are formed on the surface of the lifting pipe so as to reduce drag so that the lifting pipe is less influenced by flows of ocean current. The dimpled lifting pipe includes dimples that are formed on the outer circumferential surface of the dimpled lifting pipe, so that turbulent flows are generated, thereby reducing drag caused by ocean currents of a deep sea. | 07-22-2010 |
| 20090142255 | LITHIUM-MANGANESE OXIDES, METHOD FOR PREPARING THE SAME, AND LITHIUM ADSORBENT USING THE SAME - There is provided Lithium-manganese oxides expressed as the following chemical formula 1, | 06-04-2009 |
