Granulating Patents (Class 71/64.03)
-
Patent number: 6591767Abstract: A method of stimulating root growth of seeds is disclosed in which seeds are treated with an effective amount of an aqueous ammoniacal ionic solution of metal alkanoates. Alkanoates having from 2 to 6 carbon atoms are preferred, with acetates most preferred. Metals selected from the group consisting of boron, calcium, copper, iron, magnesium, manganese, molybdenum, potassium, sodium and zinc are preferred, with zinc particularly preferred. In one embodiment, an aqueous ammoniacal ionic solution of zinc acetate is applied to seeds in-furrow. In another embodiment, seeds are treated with an aqueous ammoniacal ionic solution of zinc acetate prior to planting. In yet another embodiment, an aqueous ammoniacal ionic solution of zinc acetate is mixed with an insecticide and resulting solution applied to seeds in-furrow.Type: GrantFiled: March 15, 2002Date of Patent: July 15, 2003Assignee: Platte Chemical CompanyInventors: Ronald D. Chamberlain, Joseph Kordes
-
Patent number: 6576035Abstract: Calcium cyanamide compositions and methods for their use are disclosed. The compositions and methods stabilize active ionic compositions comprising calcium cyanamide and enhance the effectiveness of calcium cyanamide alone or synergistically in combination with nitrogen containing materials such as urea and organics, for example, manures. The compositions and methods also facilitate controllable site directed delivery of the contents of the stabilized compositions. The compositions and methods are effective for fertilizing, soil amending, metal stabilizing and odor and organism inhibition. The compositions are stable, easily calibrated, and non-clogging for spray delivery to target sites.Type: GrantFiled: December 8, 2000Date of Patent: June 10, 2003Inventors: Richard O. Hartmann, Timothy G. Holt, A. Ray Shirley, Jr.
-
Patent number: 6461399Abstract: An organic-based uniprill fertilizer is provided. To produce the fertilizer, organic matter is sequentially pre-treated by first mixing it in a first grinder with a lime admixture, then adding a slurry of reagents and binders, followed by a mixture of acids. The acids can include sulfuric and phosphoric acids, in addition to nitric acid and various organic acids such as citric and fulvic acid, depending on the end requirements of the fertilizer product. Following the mixing of the pre-product with the mixture of acids and reagents, the resultant raw product is preferably processed through a second grinder. This grinding further dries, mixes and granulates the raw product. The particle size of the completed fertilizer is reduced into a flowable, user safe uniprill product that can be further ground to reduce its moisture. Further drying may be necessary for bag or bulk product, or it can be liquified by high speed blending or micro-fluidized for sprinkler or drip applications.Type: GrantFiled: December 10, 1999Date of Patent: October 8, 2002Inventor: Larry V. Connell
-
Patent number: 6436164Abstract: An agglomeration process by which granules are formed by the steps of: (a) injecting polymer having sufficient viscoelasticity; and (b) impacting particles on the polymer at the injection point. The present invention is advantageous because it overcomes the problems of previous granulation process and subsequent art processes by having a very low recycle rate and allowing for control of granule size. It is particularly useful for fertilizer granule formation using a ureaform polymer and particles comprised of ammonium sulfate.Type: GrantFiled: September 6, 2001Date of Patent: August 20, 2002Assignee: Honeywell International Inc.Inventor: Ronald Earl Highsmith
-
Patent number: 6406510Abstract: This invention relates to methods for treating wastewater sludge cake with acid and calcium carbonate under acidic, low heat conditions to produce a stable, soil-like or granular, finished product containing calcium carbonate, useful as a nitrogen fertilizer, synthetic soil component or soil conditioner for pH control.Type: GrantFiled: November 17, 2000Date of Patent: June 18, 2002Assignee: Unified Environmental Services Group, LLCInventor: Jeffrey C. Burnham
-
Publication number: 20020056948Abstract: I have developed an agglomeration process by which granules are formed by the steps of:Type: ApplicationFiled: September 6, 2001Publication date: May 16, 2002Applicant: Honeywell InternationalInventor: Ronald Earl Highsmith
-
Patent number: 6386126Abstract: A method of stimulating root growth of seeds is disclosed in which seeds are treated with an effective amount of an aqueous ammoniacal ionic solution of metal alkanoates. Alkanoates having from 2 to 6 carbon atoms are preferred, with acetates most preferred. Metals selected from the group consisting of boron, calcium, copper, iron, magnesium, manganese, molybdenum, potassium, sodium and zinc are preferred, with zinc particularly preferred. In one embodiment, an aqueous ammoniacal ionic solution of zinc acetate is applied to seeds in-furrow. In another embodiment, seeds are treated with an aqueous ammoniacal ionic solution of zinc acetate prior to planting. In yet another embodiment, an aqueous ammoniacal ionic solution of zinc acetate is mixed with an insecticide and resulting solution applied to seeds in-furrow.Type: GrantFiled: March 7, 1997Date of Patent: May 14, 2002Assignee: Platte Chemical CompanyInventors: Ronald D. Chamberlain, Joseph Kordes
-
Patent number: 6387146Abstract: The invention relates to a granular fertilizer for plants, the grains of said fertilizer containing spores and/or mycellium of at least one type of mycorrhizal fungus in sufficient amounts to ensure symbiosis.Type: GrantFiled: July 6, 2001Date of Patent: May 14, 2002Assignee: Maltaflor Düngergesellschaft mbHInventors: Mario Protzmann, Harald Böckem
-
Patent number: 6387145Abstract: A granulated fertilizer composition for local application during sowing or transplanting, of the type comprising organic nitrogen and phosphate or phospho-nitrogen compounds as well as possible further fertilizer compounds or adjuvants, wherein the diameter of the granules is between 0.1 and 1.5 mm. Preferably, in the composition, the diameter of the granules is between 0.5 and 1 mm.Type: GrantFiled: July 1, 1999Date of Patent: May 14, 2002Assignee: Agroqualita' S.r.l.Inventors: Sergio Miele, Enrica Bargiacchi
-
Patent number: 6379414Abstract: A process is for the production of potash fertilizer granulates which have a stable shelf life also at high relative air humidities. This granulate contains an additive in the form of magnesium oxide and/or calcium oxide in a fine powder form, which is added by metering in prior to the compacting step. The result is a high final bursting strength even if the granulate is stored in a wet climate.Type: GrantFiled: April 27, 2000Date of Patent: April 30, 2002Assignee: Kali und Salz GmbHInventors: Ulrich Kleine-Kleffmann, Ludger Waldmann, Frank Wolf
-
Patent number: 6372008Abstract: An assemblage of granules including zinc sulfate heptahydrate and iron sulfate heptahydrate in a substantially integrated granular form is provided for use in e.g., the fertilizer industry. A binder, such as humate, may be used to form the granules. The granules may be dried until a slight melt is formed thereon. The granules may then be cooled to remove remaining free water. Related methods provide additional advantages.Type: GrantFiled: April 20, 1999Date of Patent: April 16, 2002Inventors: Marvin L. Boote, Bradley J. Boote
-
Patent number: 6322607Abstract: A process of obtaining a co-granulate of zinc and ammonium phosphate having a N/P ratio of 0.6-1.9 which includes initially feeding ammonium phosphate in finely divided form with a zinc source such as zinc oxide or zinc sulphate into a granulator wherein ammonia may also be fed into the granulator to increase the N/P ratio. The co-granulate is then obtained after drying.Type: GrantFiled: July 19, 1999Date of Patent: November 27, 2001Assignee: Incitec Ltd.Inventors: Anthony Martin Brown, Thomas Welsh, Christopher Wallace Dowling
-
Patent number: 6299663Abstract: Granulated particles by making use an initial feedstock having particle size of −150 mesh and 90% or greater particle size of 200 mesh. The feedstock may be contacted in a pan granulator which includes a minor amount of nucleating material of about −35 mesh. Binder is introduced into the pan granulator to progressively layer the feedstock material onto the nucleating to form a final granular fertilizer or other product in any desired size distribution. The method by which the granules are formed is interruptible and is particularly useful for forming granules having a plurality of layers of differing material. The granules, by formation with dust feedstock and in the absence of seed material, lack a core and therefore include the maximum amount of tightly packed feedstock. This results in substantial increases in the break strength of the granules with uniform homogeneous cross-sections.Type: GrantFiled: May 11, 1998Date of Patent: October 9, 2001Assignee: Airborne Industrial Minerals Inc.Inventor: Robin Phinney
-
Patent number: 6287496Abstract: Peat-containing granules possessing numerous beneficial properties can be prepared by a process involving gentle extrusion in which viscosified water is used in the extrudable composition. Advantageously, gentle extrusion allows a peat-containing extrudate to be formed in which the beneficial properties of the raw peat are well preserved. In preferred embodiments, gentle extrusion is achieved by using an extrusion die provided with a plurality of apertures and a relatively large open area which allow low extrusion pressures to be used.Type: GrantFiled: October 19, 1999Date of Patent: September 11, 2001Assignee: Bene-Tech, Inc.Inventor: Charles Michael Lownds
-
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
-
Patent number: 6254655Abstract: Granular composite fertilizer compositions are prepared by applying a liquid mixture of urea and formaldehyde to a dry substrate such as a phosphorus source, a potassium source, a secondary nutrient source, a micronutrient source or mixtures thereof and reacting the liquid mixture in situ to form methylene urea reaction products which promote binding of the substrate into a granular composite while granulating the substrate at the same time that the liquid mixture reacts in order to form the granular composite fertilizer compositions.Type: GrantFiled: March 18, 1999Date of Patent: July 3, 2001Assignee: OMS Investments, Inc.Inventor: Harvey M. Goertz
-
Patent number: 6183531Abstract: Mineral wool plant substrate formed of a coherent matrix of mineral wool having 99.9 to 75 wt % mineral wool and 0.1 to 25 wt % of an organic substance. Clay may be included in the matrix. The matrix may be in the form of a pellet.Type: GrantFiled: September 25, 1998Date of Patent: February 6, 2001Assignee: Rockwool/Grodan B.V.Inventors: Jacob Frank De Groot, Albert Willem Knop, Paul Jacques Louis Hubert Bouwens
-
Patent number: 6179893Abstract: There is disclosed a process to produce fertilizer granules containing urea and ammonium sulfate with a high ammonium sulfate concentration of ≦60 wt. % in a fluidized bed granulator, which process comprises the steps of: a) a molten urea suspension consisting of ammonium sulfate having an average particle size of 30 to 300 &mgr;m and urea having a temperature range of 120 to 155° C. is produced, b) the molten urea suspension produced at the stage a) is then injected from below on the fine particles of urea/ammonium sulfate in a fluidized bed granulator by means of at least a nozzle, while the fluidized bed is loosened by a spouting air flow in the injection area, and subsequently, c) the fertilizer granules generated in the fluidized bed are separated and, if necessary, treated. Homogeneous urea/ammonium sulfate granules of an ammonium sulfate content between 30 and 60 wt.Type: GrantFiled: June 11, 1999Date of Patent: January 30, 2001Assignee: Toyo Engineering CorporationInventors: Horst Bendix, Heinz Lange, Klaus Sch{umlaut over (u)}bel, Hans-Joachim Wachsmuth, Tetsuzo Honda, Eiji Sakata, Genshi Nishikawa
-
Patent number: 6176892Abstract: The invention relates to a method for making NK-fertilizers basically from calcium nitrate fertilizers and potassium nitrate and homogeneous NK-fertilizer products. Calcium nitrate fertilizer is melted together with potassium nitrate to form a melt or suspension thereof which is particulated to form a homogeneous NK-fertilizer. The calcium nitrate fertilizer and the potassium nitrate are melted at 90-120° C. and then heated to the desired particulation temperature being 160-190° C. for prilling and 90-140° C. for granulation. The components are mixed in ratios giving a melt or suspension comprising 40-14 weight % calcium nitrate, 55-85 weight % potassium nitrate, 0.5-6 weight % water, 0-4 weight % ammonium nitrate and 0-5 weight % magnesium nitrate.Type: GrantFiled: July 21, 1998Date of Patent: January 23, 2001Assignee: Norsk Hydro ASAInventors: Torstein Obrestad, Jan Birger Isaksen, Lars Gustav Moland
-
Patent number: 6171358Abstract: Homogeneous calcium nitrate based fertilizers containing sulphur, and method for their preparations. Solid gypsum and/or a slow reacting sulphate mineral is mixed with melted calcium nitrate fertilizer at a temperature of 90-110° C. and kept at this temperature for 3-15 minutes and subsequently particulated at a temperature of 80-110° C. The particulation by prilling is preformed at 95-110 ° C. and the particulation by granulation is performed at 90-110° C. The fertilizer is a homogeneous composition of a calcium nitrate fertilizer and gypsum and/or a slow reacting sulphate mineral comprising 0.1-5.0 weight % SO4—S, 14-19 weight % water soluble calcium and 16-21 weight % total calcium, and 0-3.0 weight % water soluble magnesium. The fertilizer may contain microamounts of Se and/or Co. and/or micronutrients like Mn, Cu, B and Zn.Type: GrantFiled: February 24, 1999Date of Patent: January 9, 2001Assignee: Norsk Hydro ASAInventors: Torstein Obrestad, Johanne Rødsvik, Torbjørn Legard