1842 results about "Ammonium phosphate" patented technology

The invention describes a new method for treating sludge, which can result in the production of high nitrogen organically-augmented inorganic fertilizer that incorporates municipal sludges or biosolids or organic sludges that can compete with traditional fertilizers such as ammonium phosphate, ammonium sulfate and urea on the commodity fertilizer marketplace. The method takes advantage of the thixotropic property of dewatered biosolids or organic sludge to create a pumpable paste-like material from the biosolids or organic sludge that is then treated with an oxidizer to reduce odorant effects and an acid. This mix is then interacted with concentrated sulfuric and or phosphoric acids and an ammonia source or alternatively a hot or molten melt or salt of ammonium sulfate/phosphate to form a fertilizer mix. The present invention controls the heat, atmospheric pressure and retention time of the fertilizer mix in the reaction vessel. When a fertilizer melt is formed ammoniation is subsequently completed by the specific use of vaporized ammonia. The invention can also be an add-on to commercial production of ammonium salts. The fertilizer produced by the present invention contains more than 8 wt. % nitrogen and preferably 15 wt. % nitrogen. The invention is oriented to be tailored to the biosolids production for individual municipal waste treatment plants in order to keep the fertilizer manufacturing plants of the present invention small with a minimization of logistics and liability.

Fire retardant composition has a mold inhibitor. The composition can embrace a mixture of a substantially neutral ammonium phosphate salt in combination with an active hydrogen-containing nitrogenous organic compound spumific, e.g., urea, and with a hydroxyl-containing carbonific, e.g., a polyol, and further with the mold inhibitor. Such a composition can be made by contacting a phosphoric acid with ammonia to form the ammonium phosphate, contacting the ammonium phosphate with the spumific, the carbonific, and the mold inhibitor, under conditions sufficient to form the composition; and can be used by contacting it with a flammable substrate under conditions sufficient to be flame retardant or mold inhibitory, or both. Another aspect is an article of manufacture comprising, in combination, the fire retardant composition having the mold inhibitor, and the flammable substrate or a residue of the same.

The invention discloses a method for producing a flame-retardant veneer plywood, which comprises the following steps: placing wood veneers into a flame retardant aqueous solution to perform dipping treatment, applying the mixed adhesive to the upper surfaces and the lower surfaces of the veneers after the veneers are dried, assembling the veneers into a plate blank according to the principle that odd layers are crossed and symmetrical with even layers, and then performing the processes of cold pressing, hot pressing, cutting edge, sanding, surface treating and the like to obtain the flame-retardant veneer plywood product the thickness of which is between 2.7 and 20 millimeters. The flame retardant in the method is a mixture of low ammonium polyphosphate, ammonium phosphate, ammonium pyrophosphate, urea phosphate, boric acid and pentaerythritol, and the mixed adhesive is a uniform mixture of wood adhesive, filler, and a curing agent. The flame-retardant decorative veneer plywood prepared by the method has the advantages of excellent flame-retardant and fireproof performance, environmental prevention performance, and good mechanical properties.

The invention relates to preparation method and application method of a grape special fertilizer, wherein the preparation method comprises the following steps: preparing an I-type fertilizer by taking the following ingredients in parts by weight: 30-40 parts of urea, 20-30 parts ammonium phosphate, 15-30 parts of potassium sulphate, 1-3 parts of humic acid, 1-3 parts of excrement, 1-5 parts of synergist, 0.1-1.0 part of ferrous sulphate, 0.1-0.8 part of zinc sulfate, 0.1-0.6 part of manganese sulphate, 0.1-0.6 part of borax, 0.1-0.4 part of copper sulfate, 3-7 parts of plaster and 3-13 parts of bentonite; preparing an II-type fertilizer by taking the following ingredients in parts by weight: 7-15 parts of urea, 25-35 parts ammonium phosphate, 35-45 parts of potassium sulphate, 1-3 parts of humic acid, 1-5 parts of excrement, 2-5 parts of synergist, 0.1-1.0 part of ferrous sulphate, 0.1-0.8 part of zinc sulfate, 0.1-0.6 part of manganese sulphate, 0.1-0.6 part of borax, 0.1-0.4 part of copper sulfate, 3-7 parts of plaster and 3-13 parts of bentonite; and blending, spraying, pelleting and drying at lower temperature to obtain the product. The application method of the fertilizer comprises the following steps: taking an organic fertilizer and the II-type fertilizer as a base fertilizer; applying the I-type fertilizer before blossom, applying the II-type fertilizer in the young fruit development period, and meanwhile, respectively spraying monopotassium phosphate and rare earth mixed liquid once on the leaf surfaces; and spraying calcium nitrate or calcium acetate to enhance the storage resistance property before picking.

The invention provides a method for preparing an organic sustained release fertilizer synergist. The synergist comprises the following components in portion by weight: 25 to 60 portions of organic component, 3 to 15 portions of synergistic component, 10 to 13 portions (solid) and 3.5 to 9 portions (liquid) of sustained release component, 0.5 to 5 portions of trace elements, 18 to 30 portions of inorganic nutrient, and 2 to 7 portions of additive. The synergist is prepared by the method of weighing, mixing, spray granulation and low-temperature drying, wherein the organic component contains 2 to 5 portions of humic acid, 25 to 45 portions of mature garbage or barnyard manure, and 2 to 5 portions of residue of monosodium glutamate and sugar; the synergistic component contains 1 to 3 portions of zeolite, 1 to 5 portions of fly ash, and 2 to 5 portions of synergistic agent; the sustained release component contains 10 to 13 portions of bentonite, 0.02 to 0.1 portion of nitrification inhibitor, and 4 to 8 portions of urease inhibitor (liquid); the trace elements contain 0.1 to 1 portion of zinc sulfate, 0.1 to 1 portion of manganese sulfate, 0.1 to 1 portion of borax, 0.1 to 1 portion of copper sulfate, and 0.1 to 1 portion of ferrous sulfate; the inorganic nutrient contains 6 to 9 portions of urea, 7 to 9 portions of ammonium phosphate, and 5 to 7 portions of potassium sulfate; and the additive contains 2 to 7 portions of plaster. The synergist is suitable for the planting of field crops and forest fruits.

The present invention relates to flue gas purifying treatment technology. The equipment consists of chemical compounding tank with stirrer, chemical adding pump, adsorber tower, circulating pump, storing pond for concentrated absorbent liquid, evaporating inlet pump, evaporator, drying inlet pump and drying machine connected via pipeline. It desulfurizes and denitrificates simultaneously through the mixed reaction of flue gas and absorbent liquid in the absorber tower with urea as absorbent and organic amine or phosphate as additive. It has an SO2 eliminating rate up to 95% and NOx eliminating rate up to 80%, with the recovered ammonium sulfate being used as fertilizer.

Fire retardant composition includes an ammonium phosphate substance, which is in contact with a carbonific, for example, glucose, and a nitrogenous spumific, for example, urea. A polysaccharide and/or a nonionic alkylpolyglycoside surfactant may be present. The composition may be in the form of a clear, aqueous liquid.

A thermosetting foam, preferably polyisocyanurate or polyurethane foam, is prepared in an extruder which permits the incorporation of high levels of filler particles. The method includes introducing polyol, isocyanate and filler particles to an extruder screw for mixing. In conjunction with extruding, a catalyst is added. The catalyst may be added either in a last extruder barrel or with the extruder head. Foam with filler particle content in excess of 12% made be readily made. Filler particles, such as aluminum trihydrate, perlite, carbon black, diatomaceous earth, polyiso powders, ammonium phosphate, fly ash, barium sulfate, calcium silicate, and calcium carbonate, may be used. The process described is preferably used for making foam boards or bunstock.

The invention discloses a plant nutrition liquid, which is characterized by the following: comprising potassium nitrate, calcium nitrate, magnesium sulfate, ammonium phosphate, potassium sulfate, monopotassium phosphate and so on a good deal of element; comprising edetate disodium, ferrosi sulfas, boric acid, manganese sulfate, zinc sulfate, copper sulfate, ammonium molybdate and so on microelement; comprising azophoska fertilizer and fertilizer booster; including diverse nutritious element of vegetation development; providing nourishing element for large and medium scale bush and small arbor. This invention also discloses a utility scheme in large and medium scale woody plant soilless culture.

The invention relates to a craftwork for producing the industrial-level monoammonium phosphate consecutively with the phosphoric acid by wet process, which adopts the following steps: 1) phosphoric acid and phosphorite pulp are desulfurized to get the desulfurized phosphoric acid; 2) the acid is undertaken the first neutralization action to get a neutralized material pulp clarifying solution; 3) after the second neutralization reaction, the solution is reacted with the desulfrized phosphoric acid to get a secondary neutralized material pulp with the pH value being adjusted; 4) the secondary neutralized material pulp with the pH value being adjusted is primarily filtered to get a primary filtering solution and a primary filtering mass; 5) the primary filtering solution is secondarily concentrated and press filtered to get the secondary filtering solution; 6) the obtained secondary filtering solution is dissolved through the grain refining, is cooled down in vacuum, is crystallized, is centrifugally separated and dried to get the finished product of the industrial-level monoammonium phosphate. The invention has the advantages that the operation during the production process is consecutive; the labor intensity of the worker is reduced; the leakage rate of the ammonia is low and the loss is small; the secondary neutralized raw material solution is clear solution, so that the viscosity is low and the loss of the ammonia is small; the neutralization and the press filtering load is reduced; the crystallization production capacity is large; the heat energy is adequately used, thereby reducing the consumption of the vapor.

A composition can embrace a fire retardant can be combined with a fluoropolymer, which can be a coating, for example, a paint, especially a latex paint, or which can be an organic solvent based coating, for example, a paint. The fire retardant can be an ammonium phosphate containing fire retardant, which can be combined with a fluoropolymer, a penetrating barrier, borate-containing formulation having resistance to water damage with protective properties coming from materials used in food packaging and cosmetics, and/or a medium-to-long chain polar carboxyl substance to make a composition. Also, a composition can embrace a fire retardant formulation having a cross-linked component, which composition may be a coating, for example, a paint or stain, especially a latex paint. The cross-linked component may be a base of the paint or stain, say, a vinyl acetate base of the fire retardant latex paint. At least one other active agent, for example, a mold inhibitor and/or an insecticide, may be included. The composition can be used by contacting it with a substrate, which beneficially is otherwise flammable. The composition or its residue may be found in combination with the substrate.

The invention relates to an etchant composition and an etching method, wherein, the etchant composition comprises any two components of oxidants, acid and salt, and the pH value of the etchant composition is between 1 and 7. The oxidant components are selected from hydrogen peroxide, ammonium persulfate, potassium persulfate and ceric ammonium nitrate; the acid components are selected from chloric acid, perchlorate, acetic acid, nitric acid, hydrofluoric acid, sulfuric acid and oxalic acid, and the salt components are selected from ammonium fluoride, ammonium bifluoride, diammonium phosphate, ammonium phosphate, ammonium chloride and perfluorinated octyl sulfanilic acid (C8F17SO3NH4).

The invention discloses an aqueous coating adhesive containing multiple coating modified ammonium polyphosphate and applications thereof on fabric finishing. The single modified ammonium polyphosphate can not acquire excellent wash-resisting, immersion-resisting and durable fire retardant performance from the fabric, and can not even obtain dry and comfortable hand feeling. The invention is characterized in that the ammonium polyphosphate, which is modified by melamine, single silane or epoxy resin, is subjected to heating and backflow in an organic alcohol-like solvent, a silane coupling agent capable of being bonded with active groups in the modified ammonium polyphosphate is then added so that the surface of the ammonium polyphosphate experiences multilayer coating and has active hydrogen; the coated ammonium polyphosphate is added with a nonionic surfactant, water, a binder and aqueous closed polyurethane, the aqueous coating adhesive containing the multiple coating modified ammonium polyphosphate is obtained by means of dispersed grinding. The invention is coated on terylene or pure cotton fabrics, thus realizing the cross-linked film forming of the ammonium polyphosphate and the aqueous closed polyurethane and the aqueous binder, and obtaining waterproof and durable environmentally-friendly fire retardant coating fabric.

The invention provides a method for preparing an organic synergistic soil conditioner. The soil conditioner comprises the following components in portion by weight: 30 to 60 portions of organic component, 9 to 23 portions of synergistic component, 10 to 23 portions of conditioning component, and 15 to 30 portions of inorganic nutrient. The soil conditioner is prepared by the method of weighing, mixing, spray granulation and low-temperature drying, wherein the organic component contains 2 to 5 portions of humic acid, 25 to 45 portions of mature garbage or barnyard manure, and 2 to 5 portions of residue of monosodium glutamate and sugar production; the synergistic component contains 1 to 3 portions of zeolite powder, and 8 to 20 portions of synergistic agent; the conditioning component contains 2 to 10 portions of plaster, 9 to 13 portions of bentonite, 4 to 8 portions of polyvinyl alcohol (liquid), and 0.5 to 1.2 portions of starch (liquid); and the inorganic nutrient contains 4 to 7 portions of urea, 7 to 9 portions of ammonium phosphate, 5 to 7 portions of potassium sulfate, and 4 to 6 portions of ammonium sulfate. The preparation method is scientific, reasonable, simple and easy to operate; and the preparation method solves the synergistic effect of soil conditioners, and is suitable for the planting of field crops and forest fruits, in particular suitable for the conditioning of saline-alkali soil. By the determination of the national standard GB18877-2002, various indexes satisfy the national standard, and the content of the humic acid exceeds the standard requirement.

The invention discloses an acidolysis method of magnesium-containing phosphate rock. The method provided by the invention is characterized by comprising the following steps of: carrying out acidolysis on the magnesium-containing phosphate rock to obtain a water-soluble calcium, magnesium and phosphoric acid containing acidolysis solution, carrying out acidolysis on the phosphate rock by using the generated phosphoric acid to generate Ca(H2PO4)2.H2O solid, performing a reaction between H2SO4 and water-soluble calcium to generate high-pureness calcium sulfate whisker, and performing a reaction between water-soluble magnesium and phosphor in the acidolysis solution and NH3 to generate character separation magnesium ions of a MgNH4PO4 solid so as to realize complete high-efficiency comprehensive utilization of the acidolyzed magnesium-containing phosphate rock. The focus of the invention is to change magnesium ions into controllable parameters which are beneficial to circulation of the acidolysis solution. The magnesium-containing phosphate rock can be efficiently utilized, and also the compound magnesium ammonium phosphate can be used to realize the separation of phosphor magnesium from a circulation medium HCl or HNO3 or CaCL, Ca(NO3)2, thus realizing the combination and combined production with a present ammonium phosphate and phosphor product processing technology. The method provided by the invention has advantages of concise technology, less investment, low energy consumption, low cost, high benefit and no discharge of ''three wastes (waste gas, wastewater and industrial residue)'', and fully presents great business value and great resource value of the high magnesium-containing phosphate rock.

The invention discloses sterilization soil-improvement slow-release composite fertilizer. The sterilization soil-improvement slow-release composite fertilizer comprises, by weight, 20-25 parts of urea, 10-15 parts of ammonium biphosphate, 10-20 parts of potassium phosphate, 5-10 parts of potassium sulfate, 8-12 parts of sodium silicate, 4-6 parts of magnesium phosphate, 7-9 parts of calcium chloride, 0.2-0.4 parts of zinc ammonium phosphate, 0.1-0.3 parts of copper carbonate, 0.1-0.2 parts of manganese ammonium phosphate, 0.4-0.6 parts of potassium borate, 0.3-0.5 parts of ferric sulfate, 0.2-0.4 parts of sodium molybdate, 20-25 parts of sodium alginate, 35-45 parts of a coating material, 5-10 parts of cassava slag, 5-8 parts of furfural slag, 10-20 parts of chicken manure, 5-10 parts of carbonized rice husk, 10-15 parts of humic acid, 10-15 parts of straws, 5-8 parts of plant ash, 0.2-0.5 parts of biological fungi, 4-6 parts of thermopsine and 3-5 parts of Artemisia argyi powder. The invention also discloses a preparation method of the sterilization soil-improvement slow-release composite fertilizer.

The invention discloses a dedicated fertilizer for tobacco, and relates to a fertilizer. The dedicated fertilizer comprises the following raw materials: 100 kg of ammonium sulfate, 31 kg of urea, 200 kg of nitric phosphate, 89 kg of di-ammonium phosphate, 100 kg of calcium superphosphate, 10 kg of calcium magnesium phosphate fertilizer, 230 kg of potassium sulfate, 15 kg of borax, 21 kg of amino acid chelated zinc, manganese, copper, iron and tombarthite, 100 kg of nitrohumic acid, 40 kg of magnesium sulfate heptahydrate, 28 kg of a biological agent, 11 kg of a synergistic agent and 28 kg of a soil conditioner. Compared with the prior art, the dedicated fertilizer has the advantages that tobacco yield can be improved by 36 percent; the agronomic character and quality can be improved; the tobacco growing period can be shortened; the environment can be protected; the plant stress resistance can be improved; the prospects in improving economic benefits of tobacco growers and the like are wide; the smoking health of a human body is guaranteed.

The invention discloses a flame-retardant wood-plastic composite material. The flame-retardant wood-plastic composite material consists of the following components in part by weight: 35 to 60 parts of plant fiber, 10 to 35 parts of ammonium phosphate flame retardant, 20 to 28 parts of plastic and 2 to 10 parts of compatilizer, wherein the total parts of the plant fiber, the ammonium phosphate flame retardant, the plastic and the compatilizer are 100; the plant fiber is powder of 30 to 100 meshes of plant fiber; the ammonium phosphate flame retardant is one or a mixture of ammonium hydrogen phosphate and ammonium dihydrogen phosphate; the plastic is one or a mixture of more than two of the following components: polyethylene, polypropylene, acrylenitrile-butadiene-styrene (ABS) plastic and polystyrene; and the compatilizer is one or a mixture of maleic anhydride grafted polyethylene and maleic anhydride grafted polypropylene. The flame-retardant wood-plastic composite material has the advantages of low flame retardant cost, good flame retardant effect and no harm and toxicity.

The invention discloses an organic-inorganic mixed fertilizer containing alginic acid and a production method thereof. The organic-inorganic mixed fertilizer containing alginic acid comprises the following raw materials in parts by weight: 45-50 parts of carbamide, 18-20 parts of ammonium phosphate, 16-18 parts of potassium sulphate, 6-8 parts of seaweed fermentation residues, 8-10 parts of a seaweed synergist, 6-8 parts of a humic acid synergist, 3-5 parts of an EDTA chelated-state microelement fertilizer, 5-7 parts of plant ash, 3-5 parts of modified magnesia and 0.2-0.3 part of gibberellins. High-quality and high-effect synergist products are added into the technical field of value addition of the fertilizers, so that the high urease inhibition effect is achieved; the conversion from ammonium nitrogen to nitrate nitrogen is controlled; the utilization rate of the fertilizer is increased; the root growth of the crops is facilitated; the content of nutrient in the fertilizer is almost not influenced; the content of nitrogen in the value-added carbamide is not smaller than 30%; the organic-inorganic mixed fertilizer is obvious in synergistic effect and safe and effective in use; organic components are used for increasing the utilization rate of the fertilizer; inorganic components are used for improving the water-retaining property of the fertilizer; the action time of the fertilizer effect is prolonged; the absorption of nutrients in the crops is facilitated; the quality of agricultural products is improved.