By Fluid Contact Patents (Class 71/64.06)
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Patent number: 8834142Abstract: A granulator, having a granulation unit having a bottom floor with a perforated plate as its bottom part; an upper air-supplying pipe for supplying a fluidizing air to the bottom of the granulation unit; a lower air-supplying pipe; air-spouting pipes, each of which is branched from the lower air-supplying pipe, and has an opening in the bottom of the perforated plate, for jetting the air into the granulation unit; and spray nozzles for spraying a granulation raw material liquid, which each are provided in the center of an air outlet of the air-spouting pipe, or having: the bottom; the air-supplying pipe; and spray nozzles for spraying a granulation raw material liquid each of which are provided in an opening in the bottom of the perforated plate, and use a high-pressure atomizing air as an auxiliary gas, with the spray nozzles being provided in a triangular arrangement.Type: GrantFiled: May 9, 2012Date of Patent: September 16, 2014Assignee: Toyo Engineering CorporationInventors: Yasuhiko Kojima, Takahiro Yanagawa
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Patent number: 8465680Abstract: Provided is a method for pelleting spherical fine particle of sodium nitrate, which comprises the following steps: 1) melting industrial sodium nitrate in a salt melting furnace, introducing into a high-level insulation buffer tank, placing in an atomizer located on top of the pelleting tower, atomizing to obtain fog droplets with size of 30 ?m-0.5 mm; 2) introducing freeze-dried high-pressure air into the pelleting tower in a tangent direction from the upper inlet pipe of the tower, so that the sodium nitrate fog droplets obtained in step 1) fall spirally along the wall in the pelleting tower, to obtain sodium nitrate particle; 3) collecting the cooled sodium nitrate particle at the bottom of the tower, and packaging. Sodium nitrate particle with lower water content, higher roundness, and smaller size can be obtained, and continuous production can be realized by the method.Type: GrantFiled: June 17, 2010Date of Patent: June 18, 2013Inventors: Liangyu Dai, Wangfa Wu
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Patent number: 8236086Abstract: Coated fertilizer wherein the fertilizer comprises fertilizer particles coated with a biomass composition comprising 1-60 wt. % solid biomass particles with a D50 between 0 and 150 ?m and 99-40 wt. % oil, a biomass composition wherein the biomass composition comprises solid biomass particles with a D50 between 0 and 150 ?m and a process for the production of a biomass composition wherein a biomass composition comprising solid particles having a D50 between 30 and 500 ?m is filtrated and the residue is grinded until the solid particles have a D50 between 0 and 150 ?m.Type: GrantFiled: June 29, 2007Date of Patent: August 7, 2012Assignee: Stamicarbon B.V.Inventors: Richard Johannes Matheus Janssen, Stefan Hendrikus Schaafsma, Theodorus Marie Leopold Evers
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Patent number: 8197729Abstract: A granulator, having a granulation unit having a bottom floor with a perforated plate as its bottom part; an upper air-supplying pipe for supplying a fluidizing air to the bottom floor of the granulation unit; a lower air-supplying pipe; air-spouting pipes, each of which is branched from the lower air-supplying pipe, and has an opening in the bottom floor of the perforated plate, for jetting the air into the granulation unit; and spray nozzles for spraying a granulation raw material liquid, which each are provided in the center of an air outlet of the air-spouting pipe, or a granulator, having: the bottom floor; the air-supplying pipe; and spray nozzles for spraying a granulation raw material liquid each of which are provided in an opening in the bottom floor of the perforated plate, and use a high-pressure atomizing air as an auxiliary gas, wherein, in each granulator, the spray nozzles are provided in a triangular arrangement.Type: GrantFiled: October 30, 2008Date of Patent: June 12, 2012Assignee: Toyo Engineering CorporationInventors: Yasuhiko Kojima, Takahiro Yanagawa
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Patent number: 7704419Abstract: Process for the preparation of urea granules in a fluid bed granulator comprising at least one inlet for fluidization air, a distribution plate above which the fluid bed is present and sprayers that are mounted in the distribution plate, from which the urea melt is sprayed on or over the urea particles present in the fluid bed, which particles are kept in motion by the fluidization air, characterized in that the fluidization air contains very finely atomized water and in that the urea concentration of the urea melt is higher than 97 wt. %.Type: GrantFiled: July 2, 2004Date of Patent: April 27, 2010Assignee: DSM IP Assets B.V.Inventors: Stanislaus Martinus Petrus Mutsers, Antonius Jozef Peter Bongers, Gerardus Mathias Cornelis Wagemans
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Publication number: 20040148991Abstract: A method and apparatus for dissolving urea. In one embodiment, the method comprises the steps of providing a mixing container, depositing a predetermined amount of urea into the mixing container, and depositing a predetermined amount of water into the mixing chamber to achieve a predetermined urea/water concentration. In a preferred embodiment, the predetermined urea/water concentration is about 50/50 wt/wt. The method further comprises the steps of mixing the urea and water to form a mixture, allowing the mixture to stand until the temperature of the mixture reaches a predetermined temperature, and thereafter, resuming mixing of the mixture until the urea completely dissolves in the water.Type: ApplicationFiled: December 30, 2003Publication date: August 5, 2004Inventors: Sabeto DiRoma, Robert Roach, Frank Recchia
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Patent number: 6582637Abstract: Method of granulating compost for the formulation of fertilizers. In one embodiment, the compost is ground to dust and pan granulated. A variety of ancillary materials may be incorporated into the compost mix for a wide range of possible applications. An embodiment is provided where agricultural seeds may be encapsulated in compost to enhance the quality of seed and reduce wastage during planting.Type: GrantFiled: May 5, 2000Date of Patent: June 24, 2003Assignee: Agronomic Growth Industries Ltd.Inventor: Robin Phinney
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Patent number: 6413292Abstract: A polyester dispersion comprising water and a biodegradable copolyester which contains structural units derived from both aliphatic and aromatic carboxylic acids or their derivatives, and the coated fertilizer granules prepared using this polyester dispersion, and a process for their preparation. A fertilization method in which the coated fertilizer granules according to the invention are used.Type: GrantFiled: March 25, 1999Date of Patent: July 2, 2002Assignee: BASF AktiengesellschaftInventors: Klaus Horchler v. Locquengh, Motonori Yamamoto, Klaus Erhardt, Son Nguyen Kim, Volker Warzelhan
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Patent number: 6273929Abstract: The present invention provides an improved process for making extruded granules containing an agriculturally active ingredient.Type: GrantFiled: April 23, 1999Date of Patent: August 14, 2001Assignee: BASF CorporationInventor: David G. Hobbs
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Patent number: 6254654Abstract: A soil improver composition produced by digesting a mixture comprising leguminous plant material, igneous rock powder of particle size less than 350 microns, a biodegradable surfactant and water with composting microbes to produce said soil improver composition.Type: GrantFiled: September 16, 1999Date of Patent: July 3, 2001Inventor: Dirk Van Barneveld