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| Application No. | Application Title | Issue Date |
| 20110265692 | METHOD AND PRODUCT FOR VARYING THE THICKENING TIME OF A CLASS G CEMENT USED IN COMPLETING A SUBTERRANEAN WELLBORE Spent Claus catalyst having a high alumina content is used as an ingredient in the manufacture of Portland cements in place of all or a portion of a conventional source of alumina. The spent Claus catalyst is preferably of a small particle size and can be ground to the ... | 11/03/2011 |
| 20100175591 | METHOD FOR INTRODUCING WASTE AND/OR ALTERNATIVE FUELS INTO A CLINKER PRODUCTION METHOD AND DEVICE FOR CARRYING OUT SAID METHOD In a method for introducing waste substances and/or alternative fuels into a clinker production process, the raw materials, in the form of slurries or suspensions, are subjected to mechanical deagglomeration as a pumpable mass. The pumpable mass is ejected into risers, ... | 07/15/2010 |
| 20100132592 | Method and facility for disposing wet sludge An object of the present invention is to provide a wet sludge disposal method and facility capable of smoothly transferring wet sludge to a kiln inlet part, or the like, of a dry process kiln, by a low feeding pressure and without substantially increasing the moisture c... | 06/03/2010 |
| 20060272553 | Cement making method A method of making cement clinker in a wet rotary kiln that includes providing raw material at the front of the kiln and adding a second group of materials for processing at an intermediate location along the kiln. This second group may include materials that improve th... | 12/07/2006 |
| 20060260514 | Method for recycling concrete waste A method for recycling concrete waste includes the steps of: a) heating the concrete waste to provide a measure of fragility to the concrete waste; b) milling and sieving the heated concrete waste to separate coarse aggregate from the concrete waste; and c) milling and ... | 11/23/2006 |
| 20060191444 | Method of producing portland cement A method of producing Portland cement includes the steps of: preparing a raw material of the Portland cement; preparing Municipal Solid Waste (MSW) ash; mixing the raw material and the MSW ash to obtain a mixture; feeding the mixture into a kiln; and operating the kiln ... | 08/31/2006 |
| 20050274293 | Method and apparatus for drying wet bio-solids using excess heat recovered from cement manufacturing process equipment Method and apparatus for drying wet bio-solids by utilizing waste heat from one of a clinker cooler or kiln exhaust gases in a cement making process. ... | 12/15/2005 |
| 20050241536 | Mid-kiln injection of waste-derived materials A method for the production of cement clinker comprises the introduction of non-traditional materials into the kiln, preferably at a mid-kiln locations. The non-traditional materials are materials that are difficult, expensive or environmentally challenging for disposal... | 11/03/2005 |
| 20050066860 | Use of organic waste/mineral by-product mixtures in cement manufacturing processes The use of organic waste/mineral by-product mixtures as raw materials in the manufacture of cement clinker; as alternative or supplemental fuel sources for heating a kiln used in a cement clinker manufacturing process; and, to reduce nitrogen oxide (NOx) emis... | 03/31/2005 |
| 20050039638 | Method and process for co-combustion in a waste to-energy facility The co-combustion process may comprise the following unit operations: routing of hot gas (10) generated in the clinker cooling process to a rotary kiln (1); use of part of the rotary kiln exhaust gas to dry solid wastes in rotary dryers; leading the gases ... | 02/24/2005 |
