Abstract: An inhibitor composition contains dicyandiamide as a nitrification inhibitor, alkyl thiophosphoric triamide as a urease inhibitor, or a combination thereof, dissolved in a liquid medium comprising an organic solvent selected from, among others, one or more polar aprotic solvents, including one or more organophosphates, amine solvents, heterocyclic alcohol solvents, and mixtures thereof, is useful in making fertilizer compositions and in a method of fertilizing target plants.

Abstract: The invention relates to a process for the production of urea ammonium nitrate, a system and a method of modifying a plant. The process comprises treating ammonia-containing off-gas resulting from the production of ammonium nitrate (AN off-gas) with acidic scrubbing liquid in a finishing treatment section having a gas inlet in fluid communication with a gas outlet of a finishing section of a urea production unit, wherein the finishing section is adapted to solidify urea liquid, and wherein said finishing treatment section is adapted to subject ammonia-containing off-gas of the finishing section to treatment with an acidic scrubbing liquid.

Abstract: Methods and related systems for conditioning of granular fertilizers post-manufacture to reduce the generation of dust during handling, transport, and storage of the fertilizers, and/or to increase the agricultural benefits of the fertilizer. The method includes introducing a quantity of an aqueous conditioning agent, such as by spraying, to a plurality of fertilizer granules. The aqueous conditioning agent can include one or more beneficial agricultural and/or dedusting additives including one or more acidifying agents, one or more drying agents, one or more herbicides and/or pesticides, one or more chelating agents, one or more biological agents, and combinations thereof.

Abstract: A method is provided for applying porous carbonaceous particles to soil for purpose of cultivating plants having roots, where at least 95% of the porous carbonaceous particles have a particle size less than or equal to 10 mm. The method incorporates the porous carbonaceous particles into the soil surrounding the plant roots at a depth of between 0-24 inches from the soil surface, where the porous carbonaceous particles are positioned in the area surrounding the roots of the plants at a ratio of between 1:999 to 1:1 porous carbonaceous particles to soil.

Abstract: The present invention relates to increasing longevity of the nitrogen content of soil through improved liquid delivery formulations of nitrification inhibitors. The liquid formulation can also be comprised of nitrification inhibitors and optionally urease inhibitors that are blended solutions of each. The nitrification inhibitors are present in a mixture that comprises both a protic and an aprotic solvent system. The novel formulations are designed to be applied to fertilizers, especially urea and manure based fertilizers. The delivery formulations provide an environmentally sound and inherently safe solvating system that improves the storage stability of the urease inhibitors by utilizing liquid organic non-water containing solvents, maintains the nitrification inhibitors in solution to storage temperatures of at least 10° C., and provides improved application to fertilizer of nitrification inhibitors.

Abstract: The invention discloses a method for the preparation and use of a slow-release iron-based biochar soil heavy metal passivator. The slow-release iron-based biochar soil heavy metal passivator of the present invention is prepared by an one-step method, wherein iron-based biochar, kaolin and a biological starch are mixed into a core material in a specific ratio; an acidic silica sol and a chitosan solution are prepared, under the effects of an alkaline catalyst and an emulsifier, as a chitosan and silica-sol composite material as a coating, and the iron-based biochar is coated with the alkaline coating material, with the core material and the coating material being controlled at a certain volume ratio. The passivator has a wide raw material source, a simple and convenient preparation process, easy industrialized production, and can passivate the heavy metal arsenic and cadmium efficiently and inhibit the absorption and accumulation of arsenic and cadmium.

Abstract: The present invention provides a system to aid in the time-release of molybdenum in soil. The system comprises a dry, powdered blend of a calcium source, a molybdenum source, and a second source of calcium and/or molybdenum. The blend is preferably coated onto a dry agronomic carrier (e.g., urea) for application to soil. Advantageously, the calcium sources sequentially contribute to making the soil pH more molybdenum-friendly (i.e., the pH is increased) for an extended period of time.

Abstract: The invention relates to a homogeneous, solid, particulate, urea ammonium sulphate-based composition comprising urea ammonium sulphate and a urease inhibitor of the type phosphoric triamide, wherein the urea ammonium sulphate-based composition is further characterized in that one or more of the following measures applies: a) it comprises 5 weight % or less, relative to the total weight of the composition, of one or more alkaline or alkaline-forming inorganic or organic compounds that is able to interact with ammonium sulphate; b) the urease inhibitor of the type phosphoric triamide is in a solid particulate form; c) an anticaking and/or moisture repellent coating is applied onto the urea ammonium sulphate particulate material. The composition according to the invention has improved properties for reducing ammonia loss by urease activity in the soil and is in particular suitable as a fertilizer.

Abstract: The invention concerns a method for treating a mixture of wastes (4) comprising biodegradable wastes, the method being characterized in that it includes the following successive steps: Step A: the mixture of wastes (4) is subjected to a first composting cycle so as to obtain a mixture of pre-composted wastes (4), Step B: the mixture of pre-composted wastes (4) is subjected to a drying so as to obtain a mixture of dried wastes (4), Step C: the mixture of dried wastes (4) is separated into at least a portion of heavy wastes (14) and a portion of light wastes (13), Step D: the portion of light wastes (13) is subjected to a second composting cycle to so as to obtain a mixture (4) of refined wastes (20). Treatment of biodegradable wastes.

Abstract: The invention provides a process for the production of hydrogen, comprising catalytically decomposing a concentrated aqueous solution of potassium formate in a reaction vessel to form bicarbonate slurry and hydrogen, discharging the hydrogen from said reaction vessel, and treating a mixture comprising the bicarbonate slurry and the catalyst with an oxidizer, thereby regenerating the catalyst. Pd/C catalysts useful in the process are also described.

Abstract: Processes for manufacturing organic fertilizer products, such as liquid and solid organic fertilizer, from animal manure are disclosed, together with the fertilizer products produced therefrom.

Abstract: Fertilizer granules containing elemental sulfur and a hydrogel which expands or swells in the soil to more readily disperse the elemental sulfur surface throughout the soil, which increases the elemental sulfur surface area available for oxidation, and ultimately uptake of sulfur by the plant. The elemental sulfur and hydrogel can be added to a fertilizer composition as either an exterior coating or co-granulated with the base fertilizer composition.

Abstract: An improved solvent system for the formulation and application of N-alkyl thiophosphoric triamide urease inhibitors. These formulations provide safety and performance benefits relative to existing alternatives and enable storage, transport and subsequent coating or blending with urea based or organic based fertilizers. These formulations are comprised primarily of environmentally friendly aprotic and protic solvents (particularly dimethyl sulfoxide and alcohols/polyols) to stabilize the urease inhibitor.

Abstract: The present invention relates to a reactor (201) for preparing hydrogen cyanide by the Andrussow process, to an equipment (200) comprising said reactor and to a process for preparing hydrogen cyanide by the Andrussow process. The reactor (201) comprising at least one gas inlet (I) for reactant gases mixture, a catalyst (203), a porous support for the catalyst (204), a porous sub support (205, 206) and at least one outlet (P8) for the reaction products. According to the invention, said reactor has a cone frustum shaped metallic casing (210) and comprises inside the metallic casing, a gas distributor (202) located between the gas inlet and the catalyst, said distributor comprising at least one cone frustum element (D1, . . . Dn) having an upper base directed towards the gas inlet (I).

Abstract: A controlled-release fertilizer includes oxidized glutathione and a release control agent, and a method produces the controlled-release fertilizer.

Abstract: A method and apparatus for producing a biocide from a hypochlorite oxidant and an ammonium salt are provided. The method includes monitoring a control parameter to optimize the ratio between the hypochlorite oxidant and the ammonium salt. The control parameter may be oxidation-reduction potential, conductivity, induction or oxygen saturation.

Abstract: An inhibitor composition contains alkyl thiophosphoric triamide (or a mixture of alkyl thiophosphoric triamide and dicyandiamide),dissolved in a liquid medium comprising at least one organic solvent, at least one amine stabilizer and, optionally, at least one dye and/or at least one odor masking agent, is useful in making fertilizer compositions and in a method of fertilizing target plants.

Abstract: An inhibitor composition contains alkyl thiophosphoric triamide (or a mixture of alkyl thiophosphoric triamide and dicyandiamide),dissolved in a liquid medium including at least one organic solvent, at least one amine stabilizer and, optionally, at least one dye and/or at least one odor masking agent, is useful in making fertilizer compositions and in a method of fertilizing target plants.

Abstract: A process and plant for producing a makeup synthesis gas (20) for the synthesis of ammonia, comprising: reforming of a hydrocarbon feedstock (10) in a steam reformer (SMR), purification of said gas product obtaining a hydrogen synthesis gas, addition of a suitable amount of nitrogen (19) to said hydrogen synthesis gas, wherein said purification includes separation of hydrogen in a main separation unit (S1), which produces a hydrogen current (14) and a tail gas (15), and wherein further hydrogen is recovered from the said tail gas (15) in an additional separation unit (S2); some embodiments provides that an amount of gas product (24) is also fed to said additional separation unit; a corresponding method for the revamping of a front-end of an ammonia plant is also disclosed.

Abstract: A coating is applied in one or more layers on a granular material, such as a granular fertilizer material or the like. The coating may include a diisocyanate in either pure form or partially polymerized form, a polyol or polyol mix, and optionally a wax. The polyol or polyol mix may be, for example, a polyester polyol, a polyether polyol, or combinations thereof. In some examples, the polyol or polyol mix may be an aliphatic glycerine initiated polyether polyol, an aliphatic amine initiated trifunctional polyol, castor oil or castor oil derivative, or ethylene diamine that has been propoxylated or ethoxylated, and combinations thereof. The coating is reacted on the granular material.