2333results about "Solid/semi-solid fertilisers" patented technology

The invention provides for methods, devices, and systems for pyrolyzing biomass. A pyrolysis unit can be used for the pyrolysis of biomass to form gas, liquid, and solid products. The biomass materials can be selected such that an enhanced biochar is formed after pyrolysis. The biomass can be pyrolyzed under specified conditions such that a selected biochar core is formed. The pyrolysis process can form a stable biochar core that is inert and/or resistant to degradation. The biochar or biochar core can be functionalized to form a functionalized biochar or functionalized biochar core. Functionalization can include post-pyrolysis treatments such as supplementation with microbes or physical transformations including annealing and/or activation.

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. The uniprill fertilizer comprises small, preferably microscopic particles that are homogenous in nature, in that any single particle is substantially identical in composition to all other particles of the fertilizer. Additionally, each uniprill particle contains substantially all sixteen nutriments and minerals required for the growth of healthy plants.

The invention relates to a biochar-containing composition comprising biochar having organic matter therein and/or thereon, clay associated, optionally intercalated, with the organic matter, a non-clay mineral and optionally also a plant growth promoter.

Method and apparatus for coating fertilizer in pellet or other form to impart time-release characteristics and the resulting coated pellet product. The polyurethane coating encapsulates fertilizer particles, forming a hydrophobic coating for slow-release qualities. The urethane polymer coating is formulated with an isocyanate and a combined fluid of a polyether polyol, a methyl ester derivative of plant or vegetable oil, a T-12 curing catalyst, barium sulfate, and an oil-based dye. The barium sulfate imparts physical strength to and enhances color quality of the polyurethane coating, and acts as a detackifier and maintains temperature in the coating reactor. The inventive formulation is effective in the practical polymer coating of sulfate-based or other fertilizer pellets in an inventive time-release fertilizer product. An apparatus is provided for carrying out the coating process.

A method for creating a particle from a powder according to one embodiment includes applying a droplet of a liquid to a bed of powder, wherein a particle is formed at about a point of contact of the droplet with the bed. A composite particle according to one embodiment includes a liquid-absorbing material and a liquid-induced binding agent substantially homogeneously dispersed in the particle. A composite particle according to yet another embodiment includes a liquid-absorbing material and a byproduct of a liquid-induced gas forming agent substantially homogeneously dispersed in the particle. A composite particle suitable for use as an animal litter according to an embodiment includes a liquid-absorbing material, where the particle has at least one of the following properties: hollow, cupped, and generally bagel shaped. A composite particle in yet another embodiment includes a material formed in a shape substantially defined by a droplet of liquid.

An improved composition comprising substantial spherical UFP particles and an active agent, such as NBPT, and optionally other components is used as an additive for liquid and solid fertilizers, typically containing urea. Methods of making the compositions and their use are also disclosed.

A biochar-based coast saline-alkali land improvement conditioner and a preparation method and application thereof are disclosed, the biochar-based coast saline-alkali land improvement conditioner comprises, by mass, 55-60 parts of biomass charcoal, 35-40 parts of humic acid, 2-4 parts of beneficial microbial agent, 1-2 parts of urea and 3-4 parts of a binder; the biochar-based coast saline-alkali land improvement conditioner has the synergistic effect of soil improvement, activation of microorganisms, enhancement of crop saltresistance, the soil improvement helps to improve soil microflora and increase the microbial activity in the soil, microbial metabolites also enhance the crop root saltresistance, crop growth feeds back to accelerate the soil improvement, a virtuous cycle system is formed, and multiplier amplification effect can be achieved compared with a single measure.

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 agglomerates may be used as a soil liming agent and for introducing nutrient values into cultivated soil. Also disclosed is a method for introducing nutrient values into cultivated soil so as to inhibit leaching of the nutrient values from the soil and improve utilization of the nutrient values by plants grown in the soil.

A method for sorting and comprehensively utilizing municipal solid waste includes steps of: 1) feeding the municipal solid waste into a feeding tank through a feeding inlet, then outputting into a breaking device; 2) breaking refuse bags and large blocks by the breaking device; 3) transporting broken refuse into a two-stage roller screen for screening out dusts with a particle size of less than 3 mm, and hanging strips; and 4) transporting mixed refuse screened by the two-stage screen into a vibrating screen; screening oversize products by a heavy winnowing machine for separating inorganic blocks, large plastics and paper; transporting underflow products into a two-room multi-functional winnowing machine for dividing into heavy materials, light materials and medium materials. By effectively combining sorting devices, effective sorting and reutilization of mixed refuse are achieved. Thereafter, paper, fibers, plastics and kitchen organic refuse are respectively for producing refuse derived fuel, wood-plastic composite and fertilizer.

The invention discloses a process of preparing a pig manure bio-organic fertilizer by a microbial fermentation method. The process comprises the following step: by taking the pig manure as a raw material and supplementing straws, earthworm cast, seaweeds, and the like, performing a two-step fermentation process of a biological fermenting agent to prepare the pig manure bio-organic fertilizer. The process is high in resource utilization degree, easy for large-scale industrial production, beneficial to realizing resource utilization of live pig breeding wastes and capable of a pig breeding environmental pollution problem at present. The pig manure bio-organic fertilizer has the effects of the bio-organic fertilizer and the seaweed fertilizer, is rich in functional active ingredients of seaweeds and a large number of probiotics, capable of effectively regulating equilibrium of microorganisms in soil, decomposing organic or inorganic components such as organic substances and mineral substances in the soil, eliminating soil hardening, desertification, salinization and the like caused by abuse of a chemical fertilizer throughout the year, increasing the yield of crops, and has the special effects of improving the quality of the crops and improving the stress resistance of the crops. Besides, the pig manure bio-organic fertilizer is long in acting period, and is an ideal fertilizer for developing green ecological agriculture.

An oil-containing solid in which liquid oil is contained in a large amount and from which oil seepage is slight; and a process for producing the same. The oil-containing solid is produced by impregnating a porous solid with a W/O emulsion. Further, use is made of the W/O emulsion having a water-soluble gellable substance incorporated in the water phase thereof. Consequently, the water-soluble gellable substance is converted to a gel in pores of the porous solid, thereby enhancing the liquid oil leakage preventing effect of the W/O emulsion.

A water dispersible pellet and method of producing same comprising: micronized elemental sulphur with 80% of particles less than 30 microns, a binder component in the amount ranging from 0.95% to 95% by weight; a surfactant in the amount ranging from 0.05% to 10% by weight; a soluble salt present in the amount ranging from 0.05% to 95% by weight; bentonite clay in the amount ranging from 0.05% to 95% by weight. The pellet having a mean particle domain size and a mean crushing strength, all in a form such that within a few minutes of contact with water the pellet disperses into particles with more than 10% of said particles passing through a 50 mesh (US Standard Size) screen.

The present invention relates to a method for making 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 2:1, adding an aqueous catalyzer solution in a weight ratio from 0.1 to 4%, controlling the pH of the aqueous dispersion to hold it within a range from 4.0 to 7.0, and supplying the aqueous dispersion to a recirculating granulating device, as a growth seed.

The invention discloses a chicken manure fermentation organic fertilizer, which is prepared from the following raw materials: chicken manure, straw powders, konjak flour, corn flour, cellulose, zeolite, humic acid, potassium dihydrogen phosphate, urea, peat soil, a leavening agent, a soil improvement agent, a film coating agent, potassium sulfate, borax and calcium superphosphate. The above raw materials are subjected to the integrated treatment of anaerobic fermentation and aerobic fermentation, so that the organic fertilizer is prepared through the fermentation of the chicken manure. The chicken manure fermentation organic fertilizer is complete in fermentation effect, and is capable of killing plant pathogenic bacteria, eggs, weed seeds and other harmful microorganisms in the chicken manure, and generating a large amount of nutrients beneficial to the plant growth and the plant absorption. The process is simple and easy to implement. The raw materials of the prepared organic fertilizer are rich in nutrition. Meanwhile, the prepared organic fertilizer is high in fertilizer efficiency and rich in nutrition, and can coordinate the soil nutrient balance, improve the soil nutrient, promote the plant growth, increase the plant yield and improve the plant quality.

A foaming granule is provided that includes an acid, a gas-evolving acid neutralizing agent, a surfactant foaming agent, and an active agent that is a plant growth enhancer, pest control agent, de-icer or anti-icer. Upon wetting a granule, the acid and neutralizing agent are brought into contact releasing gas that is trapped in the surfactant to form a foam that disperses the active agent to a greater area and more uniformly than a conventional nonfoaming granule containing a like amount of active agent. Dispersal of granules followed by sufficient time for foaming to occur represents a typical use methodology.

An improved composition comprising substantial spherical UFP particles and an active agent, such as NBPT, and optionally other components is used as an additive for liquid and solid fertilizers, typically containing urea. Methods of making the compositions and their use are also disclosed.

This invention provides processes for forming powders comprising at least one active compound and at least one carrier. The processes comprise (i) heating at least one active compound to at least its melting point or softening point; and (ii) in an extruder, combining at least the at least one active compound with at least one carrier, to form combined ingredients, and cooling the combined ingredients as they pass through the extruder, such that the combined ingredients exit the extruder at about ambient temperature in the form of a powder having particles sized so that about 95 wt % or more of the powder passes through a screen of about 8 standard U.S. mesh.

The invention relates to an agricultural composition wherein the composition comprises an effective amount of a sulphur active ingredient and at least one dispersing agent.

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 prilling comprises mechanically agitating in the prill head to shear thin the shear-thinnable mixture sufficiently to permit prilling. The inventive method can be used to produce fertilizer product comprising ammonium sulfate nitrate.

A method for applying PAM to soil wherein said PAM is intermixed, impregnated and/or applied to solid carriers.

The invention discloses a composite soil remediation agent made from compost and a preparation method. Vigorous implementation of soil remediation is a primary task for protecting soil ecological environments and solving land resource scarcity. The composite soil remediation agent made from the compost comprises, by weight, 60-70 parts of compost materials, 10-15 parts of straw biomass charcoal, 20 parts of coal ash, 2-5 parts of zeolite powder, 3-5 parts of calcium magnesium phosphate fertilizer, 0.5-2 parts of composite microbial agents and 0.5-1 part of binder. The composite soil remediation agent and the preparation method have the advantages that the substances are combined organically, formula and production process are optimized reasonably, the composite soil remediation agent with functions of fertilizing, purifying and remediating the soil and promoting crop growth and development is provided for soil remediation, and accordingly, healthy, green and sustainable agriculture is promoted. The composite soil remediation agent is applied to soil remediation as well as biofertilizer and waste resource utilization.

The invention belongs to the technical field of agricultural fertilizers, and particularly discloses a nitrogen-fixing microorganism compound fertilizer and a preparation method. The nitrogen-fixing microorganism compound fertilizer comprises polypeptide urea, a phosphatic fertilizer, polypeptide chelating potassium, a compound microorganism agent, a polypeptide compound, a soil conditioner, a medium trace element compound and a nutrition agent; the compound microorganism agent contains nitrogen-fixing bacteria, phosphate solubilizing and potassium solubilizing bacteria, photosynthetic bacteria, probiotics and adsorbate. The preparation method disclosed by the invention comprises the steps of preparing compound microorganism agent fermentation liquor, mixing the fermentation liquor with the adsorbate uniformly and preparing the compound microorganism agent and a microorganism envelope complex agent successively; mixing the microorganism envelope complex agent, a humic acid envelope organic fertilizer and a polypeptide envelope inorganic fertilizer uniformly, under the action of an electric field and a magnetic field, adding medium trace elements, spraying bone glue, and preparing nitrogen-fixing microorganism compound fertilizer particles. The compound fertilizer disclosed by the invention has the effects of adjusting nutrients, stimulating crop growth, improving the agricultural product quality, increasing yield and efficiency, preventing insect diseases, increasing soil fertility, loosening and improving soil quality and the like.

The invention discloses a strawberry biodegradable coated fertilizer rich in organic selenium and vitamin, wherein the strawberry biodegradable coated fertilizer is prepared from the following raw materials in parts by weight: 54-56 parts of a tofu residue, 21-24 parts of anhydrous sodium sulphate, 1-2 parts of monocalcium silicate, 1-2 parts of choline chloride, 0.2-0.4 part of a vitamin additive, 43-47 parts of selenium-enriched plant waste, 40-45 parts of a selenium-enriched edible fungus waste, 2-3 parts of selenomethionine, 18-23 parts of ammonium phosphate, 14-18 of potassium chloride, 7-9 parts of urea, 16-21 parts of a phosphorus nitrate fertilizer, 5-9 parts of an EM microbial agent, 8-11 parts of a modified bamboo fiber, 2-4 parts of nano carbon, 1-3 parts of zinc sulfate, 0.3-0.5 part of potassium polyacrylate, 0.3-0.7 part of selenious chloride, 1-2 parts of boric acid, 0.1-0.4 part of a silane coupling agent KH550, and a proper amount of water. The fertilizer enhances the stress resistance of strawberry, and improves the quality of the strawberry.

The present invention relates to a novel, dual purpose binder formulation or system. The invention also relates to a process of agglomerating dispersed particles or fines into substantially spherical and crush resistant granules. The invention further relates to a method of covering a seed and binding the seed with a material mixture beneficial for seed germination. The invention also relates to an all-in-one seed agglomerated by the dual purpose binder formulation.

A free-flowing fertilizer comprising: i) from 25 to 99.5% by weight of a powdered water soluble nitrogen containing fertilizer. ii) from 0.05 to 1.5% by weight of a polyacrylamide liquid emulsion/dispersion. iii) from 0.1 to 3.0% by weight of a polyacrylamide powder whose particle size is primarily 50 to 100 mesh in size.

This invention provides time-release plant nutrient compositions, oxygen-generating nutrient compositions, and effervescing nutrient compositions, in the forms of powders, capsules, tablets, pellets, and granules. The oxygen-generating agents include peroxides, percarboxylics, percarbonates, and mixtures thereof. This invention provides methods for making the compositions of this invention and methods for fertilizing a plant or a seed and/or providing oxygen to a plant or seed growing in a hydroponics system.

A composition suitable for making films, wherein the composition contains keratin obtained from avian feathers and at least one OH containing plasticizer. Protein-based films containing at least one protein and at least one OH containing plasticizer, wherein the protein is a protein whose PE value is ≧2.5 where PE=(S+T+Y)/C where PE is plasticizer efficiency and where S, T, Y, and C are the amino acids serine, threonine, tyrosine, and cysteine, respectively, in the protein. Preferably the protein is keratin obtained from avian feathers.

The invention discloses slow-release fertilizer for soil improvement and a preparation method and application thereof. The method is easy to operate, cost is low, raw materials can be obtained easily, the effect is obvious, secondary pollution can be avoided, and the method is poisonless, harmless and more environmentally friendly. Ground phosphate rock is activated through high temperatures and acid liquor, the soluble phosphate content is increased, and the plant growth requirement is met. Meanwhile, crop waste is added and ferric salt is loaded, so that loose and porous charcoal is generated at the high temperature for improving soil; generated ferric oxide can adsorb and fix heavy metal at the same time, and soil improvement and slow release of fertilizer are integrated. The utilization rate of the ground phosphate rock is increased by activating the ground phosphate rock, the shortage current situation of phosphate rock resources is relieved, and secondary utilization of waste is realized by using the crop waste. The slow-release effect of slow-release fertilizer phosphorus for soil improvement is good, the requirement for the biological activity of plants is met, and phosphorus losses can be avoided. The slow-release fertilizer has the advantages of adsorbing and fixing the heavy metal of the soil, reducing soil hardening, increasing soil bulk density and the like; the grain yield is increased, and the grain safety is guaranteed.

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 particles of a potassium source and particles of a phosphorus source, to make a homogeneous blend of the particles. Then, the blended particles are moistened with water or an aqueous solution of urea to moisten the homogeneous blend. After moistening, the blended particles are contacted with an aqueous suspension of urea-formaldehyde resin to bind the particles into homogeneous granules. The aqueous suspension of urea formaldehyde resin preferably has a urea:formaldehyde ratio of about 1:1.

An attrition resistant fertilizer spike composition, exhibiting a mechanical strength which allows the spike to be hammered unsupported into the soil without suffering damage, to provide an effective source of slow releasing plant nutrients to the soil. The composition comprises between 93 and 98 percent of particulate plant nutrient compounds containing one phosphate ion chemically combined with one divalent cation and one monovalent cation, including the compounds magnesium ammonium phosphate and magnesium potassium phosphate. The composition includes a coating of between 2 and 7 percent of thermoplastic adhesive with a softening temperature between 65 and 160 DEG C. on the particles. The coated particles are formed into an attrition and shatter resistant spike shape, suitable for hammering into the soil, by pressing into a die at a temperature higher than the softening temperature of the thermoplastic adhesive and then cooling to a temperature lower than the softening temperature. A method of preparing these improved spikes is provided. In the method the thermoplastic adhesive is applied as an aqueous dispersion or emulsion along with a die lubricant prior to pressing the coated particles into a spike exhibiting a high degree of physical integrity.