| PROCHEMTECH INTERNATIONAL, INC. Patent applications |
| Patent application number | Title | Published |
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| 20110174633 | FLOW-THROUGH-RESIN-IMPREGNATED MONOLITHIC GRAPHITE ELECTRODE AND CONTAINERLESS ELECTROLYTIC CELL COMPRISING SAME - An electrolytic cell is provided that can include: a first electrode plate including a first surface that can include a graphite material; a second electrode plate including a second surface that can include a graphite material opposing the first surface; an electrolytic reaction zone between the first surface and the second surface; and an inlet to and an outlet from the electrolytic reaction zone. The first electrode plate and the second electrode plate can include resin-impregnated monolithic graphite plates. The first electrode plate and the second electrode plate can form opposite internal walls of a chamber for the electrolytic reaction and thus can be provided without a container for containing the electrode plates. Methods are also provided for flow-through-resin-impregnating porous, monolithic graphite plates to form electrode plates. | 07-21-2011 |
| 20100125044 | TREATMENT OF GAS WELL HYDROFRACTURE WASTEWATERS - A method of treating a wastewater is provided and can be used, for example, to treat a gas well hydrofracture wastewater. The method can involve precipitating barium as barium sulfate, precipitating calcium and strontium as calcium carbonate and strontium carbonate, precipitating magnesium hydroxide, and filtering out the metal compounds to form a recycle water. The recycle water produced from the method is also provided, as is a method for using the recycle water as a gas well hydrofracture water. In some embodiments, discharge water from a coal mine, and/or water from an abandoned coal mine, is used as a source of sulfate ions to precipitate barium as barium sulfate. | 05-20-2010 |
| 20100006800 | Composition for operation of evaporative cooling towers with minimal or no blowdown - A method and composition are provided for the operation of an evaporative cooling tower with minimal, or no, blowdown. In some embodiments, the method involves using sodium cation-exchanged softened water as makeup water for the cooling tower, providing a bypass filter for suspended solids removal from the cooling water, treating the cooling water with a composition for control of corrosion and deposition, and using an effective biocide for control of biological growth within the cooling tower system. In some embodiments, a composition is provided that comprises AMPS acrylic terpolymer, sodium silicate, phosphate ions, and polyphosphate ions. When dosed at the recommended levels, the composition controls corrosion of cooling system materials to generally acceptable levels in spite of the extremely corrosive environment resulting from the cycling of sodium cation-exchanged softened water in the cooling tower. | 01-14-2010 |
| 20090211983 | OPERATION OF EVAPORATIVE COOLING TOWERS WITH MINIMAL OR NO BLOWDOWN - A method and composition are provided for the operation of an evaporative cooling tower with minimal, or no, blowdown. In some embodiments, the method involves using sodium cation-exchanged softened water as makeup water for the cooling tower, providing a bypass filter for suspended solids removal from the cooling water, treating the cooling water with a composition for control of corrosion and deposition, and using an effective biocide for control of biological growth within the cooling tower system. In some embodiments, a composition is provided that comprises AMPS acrylic terpolymer, sodium silicate, phosphate ions, and polyphosphate ions. When dosed at the recommended levels, the composition controls corrosion of cooling system materials to generally acceptable levels in spite of the extremely corrosive environment resulting from the cycling of sodium cation-exchanged softened water in the cooling tower. | 08-27-2009 |
