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Class 71/64.03 - Granulating


Subclass of Class 71 - Chemistry: fertilizers
Definition: Subject matter for forming the material into granules or
No. of patents: 76
Last issue date: 05/19/2009


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NumberTitleIssue Date
7534281Organic recycling with a pipe-cross or tubular reactor
The invention is directed to a process for enhancing the plant nutrient value of relatively low analysis organic waste material (e.g. sewage sludge) involves treating the waste material with an acid and base in a pipe-cross reactor or tubular to form a melt; sprayin...
05/19/2009
7175684Prilling method
A prilling method comprising the steps of: providing a molten first component, mixing at least a second component with the molten first component, reacting the components to form a shear-thinnable mixture; and prilling the shear-thinnable mixture wherein the prillin...
02/13/2007
7160841Uniformly spreadable granular agricultural chemicals formulation and method for scattering (applying) thereof
An object of the present invention is to provide a uniformly spreadable granular agricultural chemical formulation and to establish a method of scattering (applying) the formulation under the assumption that the spreadability of the agrochemically active ingredient ...
01/09/2007
7108732Process for producing fertilizer comprising sparingly water-soluble phosphatic fertilizer, urea/aliphatic aldehyde condensation product and water-repellent substance
The fertilizer of the invention is a fertilizer containing a sparingly water-soluble phosphatic fertilizer and a urea/aliphatic aldehyde condensation product. The process for controlling inoganizing speed of urea/aliphatic aldehyde condensation product of the invent...
09/19/2006
6939387Soil enhancers
Compositions for increasing the amount of available silica, calcium, magnesium, and sulfur are described herein. The compositions contain calcium silicate (CaSiO2) and magnesium sulfite (MgSO3). Calcium silicate may be in the form of calcium si...
09/06/2005
6749659Controlled release rate fertilizers and methods of making same
A fertilizer granule comprises: i) an elemental sulfur and swelling clay matrix, and ii) at least one additional fertilizer material incorporated into said matrix. ...
06/15/2004
6749660Solid-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
6656382Use of layered double hydroxides (LDHs), which reversibly bind (exchange) nitrate
Minerals that reversibly fix ions, in particular NO3 --, i.e. that can exchange one anion for another anion can be used as fertilizers and soil conditioners, as well as for the purification and treatment of water, particularly for the eliminati...
12/02/2003
6591767Seed treatment method
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 preferr...
07/15/2003
6576035Stabilized enhanced efficiency controllable release calcium cyanamide compositions
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 combinatio...
06/10/2003
6461399Organic material based uniprill fertilizer
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 aci...
10/08/2002
6436164Process for granule production
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 ...
08/20/2002
6406510Methods for treating wastewater sludge
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 fertili...
06/18/2002
6387146Granular fertilizer for plants containing a type of mycorrhizal fungus
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....
05/14/2002
6387145Fine granulated fertilizer formulation for seed/plant placement at seeding or transplanting
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 diamet...
05/14/2002
6386126Seed treatment method
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 preferr...
05/14/2002
6379414Process for producing pressed fertilizer granulates
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 ad...
04/30/2002
6372008Soil additive and associated processes
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 g...
04/16/2002
6322607Zinc-ammonium phosphate fertilizers
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 ...
11/27/2001
6299663Granulation method and apparatus therefor
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 me...
10/09/2001
6287496Method of granulating peat using gentle extrusion conditions and viscosified water
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 extrudat...
09/11/2001
6273929Extrusion process
The present invention provides an improved process for making extruded granules containing an agriculturally active ingredient....
08/14/2001
6254655Processes for preparing granular composite fertilizer compositions and products produced thereby
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 r...
07/03/2001
6183531Mineral wool plant substrate
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....
02/06/2001
6179893Process 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
6176892Method for making nitrogen-potassium fertilizer containing calcium nitrate and products thereof
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 sus...
01/23/2001
6171358Calcium nitrate based fertilizer
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 temp...
01/09/2001
6132484Wet granulation method for generating fertilizer granules
A method of wet granulation of fertilizer and other materials into granules. The method involves formation of the granule directly on the pan from the feedstock without intermediate steps or the use of seed materials. The result is a product having a comp...
10/17/2000
6039782Preparing organic powder by anaerobically treating fermentation waste fluid and aerobically treating the digested fermentation liquor
The present invention relates to a process for producing granulated organic matters wherein a precipitated fraction obtaied in a settling tank from a methane fermentation fluid having been treated aerobically in an aeration tank is added to a fermentation...
03/21/2000
5997599Soil 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
5964917Free-flowing fertilizer compositions
The invention relates to free-flowing, powder fertilizer compositions characterized by having enhanced aqueous dissolution rates and being able to produce drift reduced aqueous agricultural spray medium. Specifically, the compositions are water-soluble, nitrog...
10/12/1999
5883047Granules of hygroscopic, water-soluble products
The present invention relates to granules of water-soluble, hygroscopic products having a mean grain size in the range from 200 to 2000 μm, the granule grains consisting of an agglomerate of fine product particles having a mean particle size in the range...
03/16/1999
5741521Biodegradable controlled release amylaceous material matrix
A biodegradable or digestible matrix is provided suitable for use as a controlled release of an agriculturally active agent such as insecticides, fungicides, fertilizers, plant growth regulants, etc. The matrix comprises an amylaceous material optionally ...
04/21/1998
5739081Water dispersible granules of liquid pesticides
Water dispersible granules suitable for agricultural application are prepared by first preparing absorbent water dispersible granules and then loading biologically active substances into the preformed absorbent granules....
04/14/1998
5728192Method of processing waste materials to produce a product usable as a heat source and plant growth medium
A method of processing fibrous waste materials, such as textile waste, in which the waste materials which are not particulate are formed into particles, and the particles are thoroughly mixed to form a waste mixture. The waste mixture has an increased tem...
03/17/1998
5654033Solid fertilizer with a modifier bound to its surface
A surface-modified solid fertilizer product is produced by preparing a mixture of a modifier, a water-soluble calcium salt, and water. The modifier is desirably a nitrification inhibitor such as dicyanodiamide and the calcium salt is desirably calcium chl...
08/05/1997
5549730Compression molded tablet fertilizer and method the production thereof
This invention relates to a compression molded tablet fertilizer, possessing an ability to release slowly the active ingredients thereof suited to horticulture and afforestation, excelling in moldability, and revealing only sparing inconstancy of distribu...
08/27/1996
5514201Microelement deficiency corrector for farmland and process for preparation thereof
A process for forming a microelement deficiency-corrector comprising a mixture of trace elements, in hydrated sulfate form, optionally containing carbonates and including iron, magnesium, manganese and zinc, with the following typical elemental analysis: ...
05/07/1996
5435822Spray dried water dispersible fertilizer
A spray-dried foliar fertilizer for enhancing plant nutrition and health, prepared by spray drying nutrient compounds. The foliar fertilizer is amorphous, free-flowing and water dispersible and may be applied directly to the plant foliage by dusting or sp...
07/25/1995
5393319Process for producing oxamide granules
Oxamide granules are produced by (A) feed-mixing ammonia to a starting material comprising 60 to 100 weight % of a diester of oxalic acid with a C1-6 aliphatic alcohol, and 0 to 40 weight % of the same aliphatic alcohol as mentioned above, to p...
02/28/1995
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