Patent classifications
C05C9/005
Lignin-Urea Agricultural Fertilizer
Provided is a solvent borne fertilizer composition. The fertilizer composition includes a low molecular weight lignin in an amount of 5 or about 5 to 25 or about 25 weight percent solids, a carbohydrate in an amount of 1 or about 1 to 20 or about 20 weight percent solids, wherein the lignin and carbohydrate form a lignin-carbohydrate mixture; and a urea moiety bonded to the lignin-carbohydrate mixture.
Lignin-Urea Agricultural Fertilizer
Provided is a solvent borne fertilizer composition. The fertilizer composition includes a low molecular weight lignin in an amount of 5 or about 5 to 25 or about 25 weight percent solids, a carbohydrate in an amount of 1 or about 1 to 20 or about 20 weight percent solids, wherein the lignin and carbohydrate form a lignin-carbohydrate mixture; and a urea moiety bonded to the lignin-carbohydrate mixture.
DUST BINDING AGENT FOR FERTILIZER
The present invention relates to a process for reducing the formation of dust from granules based on inorganic salts or urea, in particular from fertilizer granules of this type, in which process the granules are treated with at least one fatty acid triglyceride, which is liquid at 20° C., in combination with at least one amorphous silicic acid, wherein the weight ratio of triglyceride to silicic acid is 40:1 to 3:1, and relates to the use of this triglyceride/silicic acid combination as a dust binding agent for granules based on inorganic salts or for urea granules. The invention also relates to an oil composition containing 75 to 97.6 wt % of at least one fatty acid triglyceride, which is liquid at 20° C., having certain rheological properties, and 2.4 to 25 wt % of at least one amorphous silicic acid.
DUST BINDING AGENT FOR FERTILIZER
The present invention relates to a process for reducing the formation of dust from granules based on inorganic salts or urea, in particular from fertilizer granules of this type, in which process the granules are treated with at least one fatty acid triglyceride, which is liquid at 20° C., in combination with at least one amorphous silicic acid, wherein the weight ratio of triglyceride to silicic acid is 40:1 to 3:1, and relates to the use of this triglyceride/silicic acid combination as a dust binding agent for granules based on inorganic salts or for urea granules. The invention also relates to an oil composition containing 75 to 97.6 wt % of at least one fatty acid triglyceride, which is liquid at 20° C., having certain rheological properties, and 2.4 to 25 wt % of at least one amorphous silicic acid.
PARTICULATE COMPOSITIONS AND METHODS OF USE
Particulate compositions including cores, binders, and powders are provided. Also provided are methods for producing particulate compositions, and methods for using particulate compositions.
FERTILIZER GRANULATE CONTAINING MAGNESIUM, SULPHATE AND UREA
Disclosed is a spherical fertiliser granulate, which contains magnesium, sulphate and urea, each with respect to the total weight of the granulate, in the following quantities: Urea, calculated as elemental nitrogen, in a quantity of 20.0 to 38.0 wt %, magnesium, calculated as elemental magnesium, in a quantity of 1.5 to 9.5 wt % and sulphate, calculated as elemental sulphur, in a quantity of 2.7 to 12.0 wt %, wherein at least a portion of the magnesium, the urea and the sulphate is present in the form of at least one of the crystalline phases of the formulae MgSO.sub.4*6 NH.sub.2—C(═O)—NH.sub.2*0.5 H.sub.2O (I) and MgSO.sub.4*4 NH.sub.2—C(═O)—NH.sub.2*H.sub.2O (II), wherein 1 to 20 wt %, in particular 3 to 18 wt % and especially 5 to 15 wt % of the magnesium contained in the fertilizer granulate, calculated in each case as elemental magnesium, is present in the form of water-insoluble magnesium salts. Disclosed also is a process for manufacturing the fertiliser granulate as well as the use of the fertiliser granulate as fertiliser or in fertiliser mixtures.
EXTENDED-RELEASE COMBINED FERTILIZER AND HUMIC GRANULES
A granule defined by a shape and a size, including a mass formed of a plurality of soluble fertilizer particles and a plurality of humic particles and an extended-release polymer coating surrounding an exterior surface of the mass. A process for forming the granule includes providing a mass of a plurality of soluble fertilizer particles and a plurality of humic particles and applying an extended-release coating to an exterior surface of the mass. The granule is used in a method for enhancing root growth of a target plant, such as turf grass, by applying a plurality of the granules to the target plant and allowing sufficient time for extended release of nutrients and humics from the plurality of granules.
EXTENDED-RELEASE COMBINED FERTILIZER AND HUMIC GRANULES
A granule defined by a shape and a size, including a mass formed of a plurality of soluble fertilizer particles and a plurality of humic particles and an extended-release polymer coating surrounding an exterior surface of the mass. A process for forming the granule includes providing a mass of a plurality of soluble fertilizer particles and a plurality of humic particles and applying an extended-release coating to an exterior surface of the mass. The granule is used in a method for enhancing root growth of a target plant, such as turf grass, by applying a plurality of the granules to the target plant and allowing sufficient time for extended release of nutrients and humics from the plurality of granules.
Coated urea-containing fertilizer particles and process for the production thereof
A process for producing coated urea-containing fertilizer particles, comprising the following steps: A) forming at least one polyurea layer on the uncoated urea-containing fertilizer, and then B) forming at least one polyurethane layer on the at least one polyurea layer on the urea-containing fertilizer.
METHOD OF PREPARING A MICRONIZED SULPHUR FERTILIZER PRODUCT WITH UREA
A process for the production of elemental sulphur-urea fertilizer products is described, comprising the preparation of molten urea; preparing a suspension of micronized sulphur particles with water; mixing the molten urea with suspension of micronized sulphur particles with water wherein the micronized sulphur particles substantially remain in micronized solid state; and spraying the mixture of molten urea and suspension of micronized sulphur particles with water into a granulator, wherein the water in the mixture is flashed off, resulting in the formation of sulphur-urea granules with an even distribution of urea and micronized sulphur particles. An elemental sulphur-urea fertilizer composition obtained by the process is also described.