Class / Patent application number | Description | Number of patent applications / Date published |
423489000 | Binary fluorine containing compound | 16 |
20090068086 | Method and apparatus for the production of high purity tungsten hexafluoride - Apparatus and methods for purifying WF | 03-12-2009 |
20100104497 | METHOD AND APPARATUS FOR PREPARING TUNGSTEN HEXAFLUORIDE USING A FLUIDIZED BED REACTOR - Disclosed herein are a method of preparing tungsten hexafluoride (WF | 04-29-2010 |
20110110844 | Method for preparing manganese tetrafluoride - Manganese tetrafluoride is prepared by a reaction between manganese difluoride or manganese trifluoride particles and elemental fluorine. During the reaction, surfaces of the particles are rendered fresh, e.g. by mechanical impact on the particles. Thereby, also agglomeration, sintering or vitrification of the particles is prevented. The impact is not so intensive that the particles would be crushed. | 05-12-2011 |
20110158896 | Methods For Producing Aluminum Trifluoride - Methods for producing aluminum trifluoride by acid digestion of fluoride salts of alkali metal or alkaline earth metal and aluminum, optionally, in the presence of a source of silicon; methods for producing silane that include acid digestion of by-products of silane production to produce aluminum trifluoride. | 06-30-2011 |
20130136686 | METHODS FOR PRODUCING ALUMINUM TRIFLUORIDE - Methods for producing aluminum trifluoride by acid digestion of fluoride salts of alkali metal or alkaline earth metal and aluminum, optionally, in the presence of a source of silicon; methods for producing silane that include acid digestion of by-products of silane production to produce aluminum trifluoride. | 05-30-2013 |
423490000 | Alkali or alkaline earth metal containing | 11 |
20080292535 | Large-volume CaF2 single crystals with reduced scattering and improved laser stability, and uses thereof - The method provides CaF | 11-27-2008 |
20090180948 | METHOD OF MAKING LARGE-VOLUME CaF2 SINGLE CRYSTALS FOR OPTICAL ELEMENTS WITH AN OPTIC AXIS PARALLEL TO THE (100)-OR (110)-CRYSTAL AXIS AND CaF2 SINGLE CRYSTAL MADE THEREBY - The method of making a single crystal, especially a CaF | 07-16-2009 |
20090297430 | High-purity large-volume monocrystals that are especially radiation-resistant and method of making them from crystal - The high-purity alkaline earth halide crystals, especially CaF | 12-03-2009 |
20100111820 | METHOD OF DETERMINING LASER STABILITIES OF OPTICAL MATERIAL, CRYSTALS OBTAINED WITH SAID METHOD, AND USES OF SAID CRYSTALS - A method of selecting suitable laser-stable optical material for making an optical element, especially for transmission at wavelengths under 200 nm, is described. It includes a first pre-irradiation to produce radiation damage, subsequent excitation of induced fluorescence with light at between 350 to 700 nm at least ten minutes after the first pre-irradiation and measurement of induced fluorescence intensities at one or more wavelengths between 550 nm and 810 nm. After the fluorescence intensity measurement a second pre-irradiation is performed with an at least 1000-fold higher energy than in the first pre-irradiation and then induced fluorescence intensities are again measured to determine the increase in the fluorescence intensities. The materials determined to have suitable laser stability are used for making lenses, prisms, light-conducting rods, optical windows and optical devices for DUV lithography, especially steppers and excimer lasers, integrated circuits, computer chips as well as other electronic devices. | 05-06-2010 |
20110293506 | METHOD FOR PROCESSING WASTE WATER CONTAINING FLUORINE AND SILICON, METHOD FOR PRODUCING CALCIUM FLUORIDE, AND FACILITY FOR PROCESSING FLUORINE-CONTAINING WASTE WATER - An object (first object) of the invention is to provide a waste water treatment technology (pretreatment technology in particular) which makes it possible to recover fluorine at a high recovery rate as highly pure calcium fluoride, without diluting waste water containing fluorine and silicon, i.e. to recover fluorine from high-concentration waste water containing fluorine and silicon. Waste water containing fluorine and silicon is supplied to a pH controlling tank | 12-01-2011 |
20120009116 | HIGH TEMPERATURE DECOMPOSITION OF COMPLEX PRECURSOR SALTS IN A MOLTEN SALT - In one embodiment, the present disclosure relates generally to a method for thermally decomposing a complex precursor salt. In one embodiment, the method includes heating a salt in a reactor until a molten salt is formed, adding the complex precursor salt to the molten salt in the reactor and removing a volatile precursor halide formed from thermal decomposition of the complex precursor salt from the reactor. | 01-12-2012 |
20120164061 | Production of Radiation-Resistant Fluoride Crystals, in Particular Calcium Fluoride Crystals - A process for producing fluoride crystals, in particular calcium fluoride crystals, having high radiation resistance to ultraviolet radiation, which includes: provisioning of a crystal powder ( | 06-28-2012 |
20120288435 | FLUORINE RECOVERING APPARATUS AND METHOD FOR RECOVERING FLUORINE - According to one embodiment, a fluorine recovering apparatus includes a precipitating device allowing fluoride ion-containing water to react with calcium source to form precipitate, a mixing tank mixing a filter aid including particles of a magnetic material having a diameter of 0.5 to 5 μm with a dispersion medium to produce slurry, a filter aid feeder to the mixing tank, a solid-liquid separator with a filter depositing a filter aid layer, and depositing the precipitate on the filter aid layer, a cleaning mechanism removing the filter aid and the precipitate, a separating tank separating the filter aid and the precipitate, and a returning mechanism returning the filter aid to the filter aid feeder. | 11-15-2012 |
20130115158 | Fluorite Production Method - A fluorite with excellent laser durability is provided by devising a heat-treatment method for CaF | 05-09-2013 |
20140161714 | PROCESS FOR RECOVERY OF FLUORIDE FROM WASTEWATER PRODUCED IN CRYSTALLINE SILICON SOLAR CELL MANUFACTURING - A method for processing fluoride-containing wastewaters from a factory, which includes the following steps: Step 1: collecting the fluoride-containing wastewaters into three pools: an acidic high-fluoride wastewater, an acidic low-fluoride wastewater, and an alkaline wastewater; Step 2: adding a calcium compound to the acidic low-fluoride wastewater to produce a calcium-containing solution; Step 3: reacting a portion of the calcium-containing solution with the acidic high-fluoride wastewater at a calcium-to-fluoride molar ratio of from about 0.5:1 to about 1.5:1 to produce a mixture comprising calcium fluoride particles suspended in a mother liquor; Step 4: separately collecting the calcium fluoride particles and the mother liquor; Step 5: diluting the mother liquor with a diluent to produce a mixed solution; and Step 6: introducing the mixed solution, the calcium-containing solution, and the alkaline wastewater into a fluidized bed reactor, which contains a calcium fluoride crystallization seed material, to form calcium fluoride crystals. | 06-12-2014 |
20140341798 | Method for Destruction of Halons - A method of reacting amine compounds with halons and perhalogenated compounds, resulting in the conversion of these ozone-depleting species into non-volatile salts and a variety of other amine derivatives is disclosed. | 11-20-2014 |