Entries |
Document | Title | Date |
20080219909 | Phosphorous Pentoxide Producing Methods - A phosphorous pentoxide producing method includes forming a kiln bed using feed agglomerates with a calcium-to-silica mole ratio of less than 1.0 and maintaining a bed temperature at or above 1180° C. along at least 50% of the bed length without exceeding 1380° C. along the entire bed length. Less than 10% of the agglomerates' phosphate input to the kiln remains in the kiln residue as phosphate. Another method includes maintaining a bed temperature at or above 1180° C. along a portion of the bed length and establishing a bed surface-to-volume ratio multiplied by a time for bed heat up to 1180° C. of less than 50 minutes-ft | 09-11-2008 |
20090028770 | METHOD FOR PRODUCING IRON OXYHYDROXIDE AND ADSORBING MATERIAL COMPRISING IRON OXYHYDROXIDE - The present invention provides a method for advantageously producing an iron oxyhydroxide exhibiting excellent capability of adsorbing harmful substances, such as a phosphrous components and endocrine disrupting chemicals, which are contained in industrial wastewater, exhaust gases, etc., and an adsorbent material comprising the iron oxyhydroxide produced by the method as a main component. Specifically, the present invention provides an adsorbent material produced by a method comprising the steps of:
| 01-29-2009 |
20110008231 | PROCESS FOR THE MANUFACTURE OF P406 - The invention relates to a process for the production of P | 01-13-2011 |
20110280783 | PROCESS FOR THE MANUFACTURE OF P406 - The invention relates to a process for the production of P | 11-17-2011 |
20120058038 | Method and Device for Producing Polyphosphoric Acid - A method and device for producing polyphosphoric acid burns a fuel in combustion air in a combustion chamber, sprays a spray fluid comprising substantially pure orthophosphoric acid and undertakes polymerization-condensation of the pure orthophosphoric acid. A polyphosphoric acid in the form of an acid mist accompanied by formation of gases which mix with combustion gases resulting from burning of the fuel is formed to reach a predetermined temperature, wherein the mixture causes sudden lowering of combustion gas temperature. The acid mix is separated from the gas mixture and the polyphosphoric acid is collected at a bottom of the combustion chamber and the gas mixture is outputted via a lower part of the combustion chamber separate from the collection of polyphosphoric acid. | 03-08-2012 |
20120070360 | PHOSPHATE RECOVERY FROM SLUDGE - A process for recovering reusable materials, in particular phosphate, from sewage sludge products, namely sewage sludge, sewage sludge ash or sewage sludge slag, by extraction, in which a suspension of the sewage sludge product is produced in water, alcohol, water-alcohol mixture or an aqueous solution, gaseous carbon dioxide (CO | 03-22-2012 |
20130136682 | PHOSPHOROUS PENTOXIDE PRODUCING METHODS AND PHOSPHATE ORE FEED AGGLOMERATES - A phosphorous pentoxide producing method includes forming a reducing kiln bed using feed agglomerates containing a lignin sulfonate both inside the agglomerates and coating a surface of individual agglomerates. Freeboard particulates are generated from the agglomerates, an amount of particulates generated being less than would occur in the method with no lignin sulfonate. Kiln off gas is generated and phosphorous pentoxide is collected from the kiln off gas. The kiln discharges a residue containing processed agglomerates, less than 20% of the agglomerates' phosphate input to the kiln remaining in the residue. The percentage of input phosphate that remains in the residue is less than would occur in the method with no lignin sulfonate. The method may include forming green agglomerates. Controlling a drying rate of the green agglomerates may wick some of the lignin sulfonate onto the surface of individual drying agglomerates without adhering the agglomerates together. | 05-30-2013 |
20130294994 | METHOD FOR PRODUCING PYROPHOSPHATE - A producing method of a high-purity pyrophosphate comprising a calcination of the orthophosphate under the condition of 120° C.-350° C.; and a producing method suitable for manufacturing effectively the high-purity melamine pyrophosphate. | 11-07-2013 |
20140056796 | PROCESSING OF WASTE INCINERATION ASHES - The invention relates to a method for processing waste incineration ashes, in particular domestic waste incineration ashes, in which a process for classifying the ashes and a process for recovering phosphates from the ashes are combined. In said method, the ashes are subjected to a wet classification process during which the ashes are mixed with a liquid, and the ashes are treated with an acidic aqueous solution to redissolve the phosphates, whereupon the phosphates contained in the solution are isolated. The liquid with which the ashes are mixed during the wet classification process is the acidic aqueous solution with which the ashes are treated to redissolve the phosphates. | 02-27-2014 |
20150064092 | METHODS AND REACTORS FOR PRODUCING SOLID CARBON NANOTUBES, SOLID CARBON CLUSTERS, AND FORESTS - Methods of producing fibrous solid carbon forests include reacting carbon oxides with gaseous reducing agents in the presence of a catalyst having a predetermined grain size to cause growth of fibrous solid carbon forests upon a surface of the metal. The fibrous solid carbon forests are substantially perpendicular to the surface of the metal thus creating the “forests”. A bi-modal forest composition of matter is described in which a primary distribution of fibrous solid carbon comprises the forest and a secondary distribution of fibrous solid carbon is entangled with the primary distribution. A reactor includes a catalyst, a means for facilitating the reduction of a carbon oxide to form solid carbon forests on a surface of the catalyst, and a means for removing the solid carbon forest from the surface of the metal catalyst. | 03-05-2015 |
20160051964 | METHOD AND SYSTEM FOR IN SITU FORMATION OF GAS-PHASE COMPOUNDS - A system and method for providing intermediate reactive species to a reaction chamber are disclosed. The system includes an intermediate reactive species formation chamber fluidly coupled to the reaction chamber to provide intermediate reactive species to the reaction chamber. A pressure control device can be used to control an operating pressure of the intermediate reactive species formation chamber, and a heater can be used to heat the intermediate reactive species formation chamber to a desired temperature. | 02-25-2016 |
20160090305 | Phosphorous Pentoxide Producing Methods and Systems with Increased Agglomerate Compression Strength - A phosphorous pentoxide producing method includes forming pre-feed agglomerates containing phosphate ore particles, carbonaceous material particles, and silica particles and heating the pre-feed agglomerates in a reducing or inert atmosphere to an induration temperature from above 900 C to less than 1180 C and maintaining the induration temperature for 15 minutes or more. The method includes forming feed agglomerates and increasing a compression strength of the feed agglomerates to above 25 lb | 03-31-2016 |