Class 71/30 - With nitrogen-containing substances

Subclass of Class 71 - Chemistry: fertilizers
Definition: Processes or products which include inorganic N containing
No. of patents: 153
Last issue date: 03/20/2012

«First «Previous1 2 3 4 Next»Last»

Number	Title	Issue Date
8137431	Fertilizer granules and manufacturing process thereof The invention relates to a fertilizer granule comprising both a nitrate and urea as the main nitrogen source. A mineral added during production is an important component in the composition, said mineral stabilizing these otherwise poorly compatible nitrogen compound...	03/20/2012
7931728	Fertilizer granules and manufacturing process A fertilizer granule contains, as a binder, at least one organic polymer. The organic polymer is a hydrosoluble polymer that is at least partially cationic. ...	04/26/2011
7666241	Fertilizer-polymer mixtures which inhibit nitrification in soils Improved, low-pH aqueous polymer mixtures are provided which can be applied directly to soils or incorporated within ammoniacal nitrogen-containing fertilizers to inhibit nitrification in soils, thus enhancing plant uptake of ammonium and yields. The polymers are ad...	02/23/2010
7402190	Method for making formulated nitrogenous and complex fertilizer in highly homogenized spherical granule form starting from urea-formaldehyde liquid resins and the fertilizer made thereby The present invention relates to a method for making formulated nitrogenous and complex fertilizers, in granule form, suitable for slowly releasing nitrogen, comprising the steps of preparing an aqueous urea/formaldehyde dispersion with a molar ratio from 0.8:1 to 2...	07/22/2008
7402263	Tungstate based corrosion inhibitors A trace amount of a tungstate is disclosed for inhibiting corrosion by nitrogen fertilizer solution, in particular, an ammonium nitrate fertilizer solution, (UAN) in contact with ferrous metal storage tanks, piping, and equipment surfaces. Tungstate added with a dis...	07/22/2008
7189289	Cleaning agent and method for cleaning heater tubes Disclosed is a cleaning agent for heater tubes, which is capable of eliminating deposits such as soot particulates in tubes installed in industrial heaters that typically use oil, coal or gas. The cleaning agent of the present invention is prepared by formulating a ...	03/13/2007
6953537	Corrosion inhibitor A corrosion inhibitor for use with Urea Ammonium Nitrate solutions is disclosed, comprising a blend of molybdate and one or more of the inorganic phosphates (including phosphates, polyphosphates, and pyrophosphates) and organic phosphates or phosphonates. Inorganic ...	10/11/2005
6936087	Soil conditioning agglomerates containing calcium Mechanically strong, water-disintegrable agglomerates made from a particulate calcium source, a water-soluble binder and optionally containing a primary plant nutrient source and/or micronutrient source and a process for forming such agglomerates are disclosed. The ...	08/30/2005
6884756	Water-dispersible pellets A water-dispersible particle for delivery of nitrogen to a plant is disclosed. The water-dispersible particle also delivers an active ingredient such as a plant hormone to a desirable plant or a pesticide or herbicide to an undesirable organism. Methods for making a...	04/26/2005
6749660	Solid-chemical composition and method of preparation for the anaerobic bioremediation of environmental contaminants coupled to denitrification This invention concerns the formulation and preparation of ammonium- and urea-free solid-chemical compositions for the anaerobic bioremediation of environmental contamination using the biological process of denitrification. The composition includes nitrate salts and...	06/15/2004
6632262	Controlled release urea-formaldehyde liquid fertilizer resins A controlled release urea-formaldehyde liquid resin having a nitrogen level of at least 28 wt % and its method of manufacture. The controlled release urea-formaldehyde resin is useful as a fertilizer....	10/14/2003
6579338	Controlled release urea-formaldehyde liquid fertilizer resins with high nitrogen levels A controlled release liquid urea formaldehyde fertilizer which has a nitrogen level at least 31% and its method of manufacture....	06/17/2003
6540808	Controlled release fertilizers based on self-assembled molecule coatings Controlled release fertilizers are provided and methods for their preparation, wherein the controlled release fertilizers are obtained through self-assembling molecules on the surfaces of the fertilizer particles, and then, preferably, linking these molec...	04/01/2003
6515177	Method of coating materials and materials formed thereby A method of forming a methylol urea prepolymer and a particle coated in with the prepolymer. The method involves providing a source of methylol urea and a source of aldehyde and reacting the urea and the aldehyde in the presence of an excess of urea to fo...	02/04/2003
6503287	System and method of soil distribution, such as a soil blend, capable of being blown into place A soil distribution system, and particularly a method of blowing topsoil, using an improved topsoil blend and specialized equipment, onto selected surfaces, including sloped surfaces. The topsoil blend may be placed either via traditional or selected plac...	01/07/2003
6464746	Homogeneous granules of slow-release fertilizer and method of making the same A process for making homogeneous granules of slow-release fertilizer to deliver high doses of slow-release nitrogen in pellets that disperse or fall apart when contacted by moisture. The method includes mixing particles of slow-release nitrogen with parti...	10/15/2002
6432156	Method of coating materials and materials formed thereby A method of forming a methylol prepolymer and a particle coated in with the prepolymer. The method involves providing a source of methylol urea and a source of aldehyde and reacting the urea and the aldehyde in the presence of an excess of urea to form th...	08/13/2002
6413291	Soil conditioning agglomerates containing calcium Mechanically strong, water-disintegrable agglomerates made from a particulate calcium source, a water-soluble binder and optionally containing a primary plant nutrient source and/or micronutrient source and a process for forming such agglomerates are disc...	07/02/2002
6336772	Detoxification of soil Compositions for and method of degrading organic chemicals in soil. The composition is a nutrient medium serving as a substrate for micro-organisms in the soil, preferably containing a major proportion of a source of carbon skeleton and energy, a macronut...	01/08/2002
6325836	Soil conditioning agglomerates containing calcium Mechanically strong, water-disintegrable agglomerates for use as a soil conditioner produced from cement kiln dust and other particulate calcium sources containing CaO or Ca(OH)2 and other calcium-containing compounds having the potential to be...	12/04/2001
6312492	Beneficiation of animal manure A process for treating animal manure, particularly poultry feces, with concentrated sulfuric acid (about 93 to 95% H2 SO4). The product of the process can be used for treating agricultural soils....	11/06/2001
6309440	Method and composition for promoting and controlling growth of plants Composition for and method of stimulating growth of plants, e.g. increase in crop production. The composition comprises a carbon skeleton/energy component, typically a sugar or mixture of sugars; a macronutrient component providing the elements nitrogen, ...	10/30/2001
6306194	Controlled release urea-formaldehyde liquid fertilizer resins with high nitrogen levels A controlled release liquid urea formaldehyde fertilizer which has a nitrogen level at least 31% and its method of manufacture....	10/23/2001
6293985	Fertilizer granulation method Fertilizer granulation method for incorporating urea directly into the matrix of fertilizer pellets. The process involves introducing the urea in a liquid form into the matrix and then progressively cooling the mixture of pellet and urea to recrystallize ...	09/25/2001
6287356	Soil conditioning agglomerates containing calcium Mechanically strong, water-disintegrable agglomerates for use as a soil conditioner produced from cement kiln dust and other particulate calcium sources containing CaO or Ca(OH)2 and other calcium-containing compounds having the potential to be...	09/11/2001
6241795	Soluble fertilizer formulation A dry, concentrated, fertilizer which is readily water-soluble and a method of applying the solubilized dilute fertilizer to crops to enhance crop production are described. The dry fertilizer contains a contains nitrogen, phosphorus and potassium compound...	06/05/2001
6231633	Granular coated fertilizer and method for producing the same Provided is a granular fertilizer coated with a thermosetting resin coating, characterized in that a dissolution rate of the fertilizer is retarded by containing a hydrophobic compound in at least one of the coating portion and the fertilizer portion ther...	05/15/2001
6179893	Process for generation of fertilizer granules containing urea and ammonium sulfate 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 con...	01/30/2001
6048378	Highly available particulate controlled release nitrogen fertilizer A method preparing controlled release nitrogen in particulate fertilizers which exhibit single growing season availabilities to plants of about 80 percent or higher. The method utilizes relatively low urea and ammonia to formaldehyde mol ratios of about 1...	04/11/2000
6045810	Reinforced-resin coated plant food granules A reinforced-resin coated, attrition resistant controlled release plant food containing water soluble central spheroids of plant nutrients amounting to between 75 and 98 percent and water insoluble resin coatings amounting to between 2 and 25 percent cove...	04/04/2000
6015445	Anti-caking solids Solids having a tendency to cake are treated with distillation heavies that are liquid at about 60° C. or less and are obtained from production of a ketone having the formula: R.dbd.O, wherein R is substituted or unsubstituted, branched, straight chain or ...	01/18/2000
6001147	Unsymmetrical polyureaurethane fertilizer encapsulation This invention relates to processes for the production of unsymmetrical polyurea-urethane coated granular fertilizer products, and to the unsymmetrical polyurea-urethane coated granular fertilizer products produced by these processes. These processes comp...	12/14/1999
5997599	Soil conditioning agglomerates containing cement kiln dust Mechanically strong, water-disintegrable agglomerates for use as a soil conditioner produced from dust particles emitted from kilns during the manufacture of cement and a process for forming such agglomerates are disclosed. The process comprises combining...	12/07/1999
5997601	Method for making moisture resistant calcium-containing particles A method of making free-flowing moisture resistant calcium-containing particles that inhibit the water absorption characteristics of calcium products, hygroscopic and deliquescent, for example, the method comprising the steps of spraying molten soluble ni...	12/07/1999
5997602	Aqueous fertilzer suspension containing at least phosphate ions and calcium or magnesium ions and a use of the suspension The invention relates to a stable, concentrated aqueous fertilizer suspension, which can be diluted with water to provide a working solution. The suspension contains 10 to 60% by weight of water and 40 to 90% by weight of a plant nutrient composition base...	12/07/1999
5980601	Anti-caking solids A substantially non-caking solid is treated with distillation bottoms that are liquid at about 60° C. or less and are obtained from production of an alcohol having the formula: R2--R1--OH, wherein R1 is substituted or unsubstituted branched, straight chain or...	11/09/1999
5938813	Granular coated particles containing urea and metal nitrate, and process for making the same Granular coated particles suitable for use alone or in combination with other fertilizer particles as an nitrogen-dispersing agricultural fertilizer, and a process for making the granular coated particles are disclosed. The granular coated particles inclu...	08/17/1999
5917110	Moisture-resistant calcium containing particles Free-flowing moisture resistant calcium-containing particles that inhibit the water absorption characteristics of calcium products, including soluble calcium products that are hygroscopic and deliquescent, by providing a moisture resistant coating. The co...	06/29/1999
5885320	Anti-caking process Solids that, untreated, have a tendency to cake are treated with distillation bottoms that are liquid at about 60° C. or less and are obtained from production of an alcohol having the formula: R2-R1-OH, wherein R1 is substituted or unsubstituted, branched, st...	03/23/1999
5871667	Inhibiting ferrous metal corrosion by aqueous ammoniate solutions Aqueous ammoniate solutions made during the manufacture of N-hydrocarbyl thiophosphoric triamides, consisting essentially of aqueous solutions of ammonium chloride and ammonia containing a water-soluble impurity normally tending to engender corrosion of f...	02/16/1999

«First «Previous1 2 3 4 Next»Last»

PatentStorm

Bizarre Patents

PatentStorm News

Class 71/30 - With nitrogen-containing substances