| Patent application number | Description | Published |
|---|
| 20090253252 | SUBSTRATES FOR SILICON SOLAR CELLS AND METHODS OF PRODUCING THE SAME - Aspects of the invention include methods for depositing silicon on a substrate. In certain embodiments, the methods include exposing a substrate containing silicon to a halogenated silane in a manner sufficient to deposit the silicon on the substrate. In certain embodiments, the method includes providing a substrate, one or more sources of gas, and a reaction vessel that is in fluid communication with the substrate and the one or more sources of gas. In certain embodiments, the substrate is a low or metallurgical grade silicon which may be subjected to a purification process. In certain embodiments, the reaction vessel is a particle bed reaction vessel that includes a moving bed, such as a fluidized bed which contains silicon and the gas includes a halide. | 10-08-2009 |
| 20090291235 | MULTIARC DISCHARGE MOVING BED REACTOR SYSTEM - A moving bed reactor system is provided. The system comprises at least one gas inlet, a distributor, a temperature control, a plurality of electrodes, and a spark control circuit. The spark control circuit drives the electrodes and generates a multi-arc discharge when the system is loaded with particles and a gas at approximately atmospheric pressure or greater is being pumped through the system. The multi-arc discharge is useful to create activated species which may improve the rate of a chemical reaction taking place in the moving bed reactor system. | 11-26-2009 |
| 20100056353 | METHOD AND SYSTEM FOR PRODUCING FLUORIDE GAS AND FLUORINE-DOPED GLASS OR CERAMICS - The present invention relates generally to production of a fluoride gas and equivalents thereof, and fluorine-doped sodium silicate glass, glass ceramics, vitro ceramics and equivalents thereof. In one embodiment, the method includes providing a salt and an oxide in a reactor, heating the reactor to produce a vapor and the vitro ceramic and removing the vapor. | 03-04-2010 |
| 20100075456 | METHOD AND SYSTEM FOR PRODUCING FILMS FOR DEVICES SUCH AS SOLAR CELLS FROM SEMICONDUCTOR POWDERS OR DUST - The present invention relates generally to production of photoelectric grade films or cells from semiconductor powders or dust. In one embodiment, the present invention provides a method for producing a photoelectric grade film from a semiconductor powder. The method includes providing a substrate, coating the substrate with a layer of the semiconductor powder and moving the substrate with the layer of the semiconductor powder under an energy source at a predefined rate, wherein the predefined rate is sufficient to melt the semiconductor powder by the energy source and to cool the substrate such that substantially all impurities are moved to an edge of the substrate. | 03-25-2010 |
| 20100103765 | LIQUID INJECTOR FOR SILICON PRODUCTION - The present invention relates generally to a liquid injector for silicon production. In one embodiment, the injector includes a tube having at least one opening at a first end of said tube, a moveable sealing means disposed inside the tube for sealing the at least one opening and a heating means coupled to the tube for controlling a temperature of a liquid exiting the tube through the at least one opening. | 04-29-2010 |
| 20110008235 | METHOD FOR MODERATE TEMPERATURE REUTILIZATION OF IONIC HALIDES - In one embodiment, the present invention relates generally to a method for reutilizing ionic halides in a production of an elemental material. In one embodiment, the method includes reacting a mixture of an ionic halide, at least one of: an oxide, suboxide or an oxyhalide of an element to be produced and an aqueous acid solution at moderate temperature to form a complex precursor salt and a salt, forming a precursor halide from the complex precursor salt, reducing the precursor halide into the element to be produced and the ionic halide and returning the ionic halide into the mixture of the reacting step. | 01-13-2011 |
| 20110038779 | MULTI-STAGE SYSTEM FOR REACTION AND MELT COALESCENCE AND SEPARATION - In one embodiment, the present invention relates generally to a multi-stage system for performing melt coalescence and separation, the multi-stage system. In one embodiment, the multi-stage system includes a first container for mixing a powder with a salt, the first container having an opening, a heating means coupled to the first container for heating the first container and a second container coupled to the first container. | 02-17-2011 |
| 20110300049 | METHOD FOR SEPARATION OF COMPONENTS FROM A REACTION MIXTURE VIA A CONCENTRATED ACID - In one embodiment, the present disclosure relates generally to a method for recovering an element from a mixture of the element with an ionic halide. In one embodiment, the method includes treating the mixture of the element and the ionic halide with an acidic solution to dissolve the ionic halide, wherein the acidic solution comprises water and an acid and has a pH of less than 1.0 and removing the element from an aqueous solution that results after the treating step. | 12-08-2011 |
