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1258results about "Fertilisers by pryogenic processes" patented technology
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Liquid fertilizer with pyroligneous liquor and oxalacetic liquor and production thereof
InactiveCN1778773AMagnesium fertilisersFertilisers by pryogenic processesRare-earth elementPlant regulators
A liquid fertilizer containing wood vinegar liquid or oxalic vinegar liquid and its production are disclosed. The liquid fertilizer consists of urea 1í½20.0%, potassium phosphate 1í½20.0%, potassium nitrate 1í½20.0%, lime nitrate 0.1í½10.0%, magnesium sulfate 0.1í½5.0%, ferrous sulfate 0.1í½5.0%, manganous sulfate 0.1í½5.0%, zinc sulfate 0.1í½5.0%, cupric sulfate 0.1í½5.0%, boron sand or boric acid 0.1í½2.0%, sodium molybdate or ammonium molybdate 0.1í½1.0%, plant hormone or plant regulator, rare earth element or humus acid or pesticide auxiliaries etc. The process is carried out by proportioning and mixing. It can improve bacterium inhibiting and plant growth regulating functions.
Owner:ZHEJIANG JIANZHONG BAMBOO IND
Rice slow-release fertilizer and preparation method thereof
InactiveCN107673927APhysiological characteristics are diverseWidely distributedCalcareous fertilisersMagnesium fertilisersCelluloseTrace element
The invention discloses a rice slow-release fertilizer and a preparation method thereof. The rice slow-release fertilizer comprises the following raw material components by weight: 25-40 parts of compound bacteria, 500-600 parts of an organic material, 800-1200 parts of an inorganic material, 100-150 parts of a fertilizer core, 20-30 parts of trace elements, 120-150 parts of additives, 70-80 partsof cellulose and 2500-3500 parts of a solvent.
Owner:INST OF SOIL FERTILIZER & ENVIRONMENT RESOURCE HEILONGJIANG ACADEMY OF AGRI SCI
Fertilizer combination products including fertilizer granules and cellulosic granules carrying pesticides and other active ingredients
Blends of fertilizer granules and highly absorbent cellulosic granules carrying one or more pesticidal or other active ingredients that resist the formation of actives dust or segregation of the granules and that ensure even and efficient application of both the fertilizer and the active ingredients.
Owner:KADANT GRANTEK
Conditioner-fertilizer composition for modifying and improving the structure of saline soils and/or alkaline soils
InactiveUS20050022570A1RestoresImprove propertiesCalcareous fertilisersAlkali orthophosphate fertiliserAlkali soilPhosphate
An effective conditioner-fertilizer of low and competitive cost particularly formulated for restoring or improving the cultivation properties and productivity of saline or alkaline soils, comprising: a) a chelating substance, for example sodium tripolyphosphate; b) a pH modifying or buffering substance, for example an inorganic acid; c) a surfactant, for example polyethylenglycols; and optionally, d) a plant nutrient substance, for example humic extracts which can advantageously derived from the pecan husk. The synergistic combination of polyphosphates, pH modifying and buffering substances and surfactants in the conditioner-fertilizer formulation significantly improves its effectiveness at a competitive cost. Other ingredients may also be added, for example, sodium lignosulphonate, calcium lignosulphonate and the like for modifying the physical structure of soils. The conditioner-fertilizer can be applied directly to the soil before plantation, mixed with the irrigation water or to the leaves during plant growth.
Owner:DUARTE MACDONALD ADALBERTO ENRIQUE
Slow-release fluid suspension composite fertilizer and its preparation method and use method
ActiveCN104591930AImprove stabilityImprove uniformityAlkali orthophosphate fertiliserAmmonium orthophosphate fertilisersNutritional deficiencyTrace element
The invention provides slow-release fluid suspension composite fertilizer. The slow-release fluid suspension composite fertilizer comprises 30-200 parts of fertilizer nutrients, 0.05-2 parts of a thickening agent, 0.1-4 parts of a suspending agent, 0.1-3 parts of an emulsifier, 0.05-1 part of a nitration inhibitor and 0-15 parts of water. The fertilizer nutrients comprise nitrogenous fertilizer, phosphate fertilizer, potash fertilizer, humic acid and trace elements and also contain at least one quick-acting fertilizer and at least one slow-release fertilizer. The invention also provides a preparation method and a use method of the slow-release fluid suspension composite fertilizer. The slow-release fluid suspension composite fertilizer has the advantages of the existing fluid suspension and is ternary liquid fertilizer containing the quick-acting and slow-acting nutrients, trace elements and humic acid, prolongs fertilizer efficiency of the suspension fertilizer, realizes combination of trace elements, humic acid and fertilizer, continuously and stably provides nutrients needed by crop growth and development, and solves the problems of nutritional deficiency symptom and later fertilizer removal in crop growth.
Owner:DONGGUAN YIXIANG LIQUID FERTILIZER +1
Nutrient solution for soilless pot culture peony, preparation method and application
InactiveCN1958530AEase of mass productionGood for large-scale cultivationMagnesium fertilisersFertilisers by pryogenic processesPaeonia suffruticosaNutrient solution
This invention relates to methods for preparing and applying nutrient liquid for non-soil planting of Paeonia suffruticosa. The flower-forcing liquid in the nutrient liquid comprises N, P, K, Ca, Mg, S, Mn, Zn, Cu, Fe and EDTA-2Na at a ratio of (4-12):(0.8-2.4):(0.7-2.1):(1.8-5.4):(0.6-1.8):(0.00017-0.00053):(0.0038-0.0114):(0.008-0.023):(0.003-0.009):(0.0057-0.017):(0.071-0.21). The balancing liquid in the nutrient liquid comprises N, P, K, Ca, Mg, S, Mn, Zn, Cu, Fe and EDTA-2Na at a ratio of (5-15):(0.3-1.0):(0.7-2.1):(1.8-5.4):(0.6-1.8):(0.0002-0.0006):(0.0038-0.0114):(0.0079-0.0237):(0.0031-0.01):(0.1056-0.3169):(0.0706-0.2118). The nutrient liquid can be applied to plant season-inverse Paeonia suffruticosa in pot, and prolong the flowering period.
Owner:INST OF FORESTRY CHINESE ACAD OF FORESTRY
Process for the manufacture of a bio-release fertiliser of an anionic micro nutrient viz molibdenum
This invention describes a process for the preparation of bio-release molybdenum fertilizers which comprises heating molybdenum trioxide, one or more basic compound(s) of metal(s) selected from magnesium, calcium and sodium, and phosphoric acid till a solid polyphosphate is obtained and finally obtaining the dried powder.
Owner:AGTEC INNOVATIONS
Phosphorus and potassium fertilizer for all forms of perennial trees, vines and annual crops
InactiveUS20050119124A1Desirable resultEfficient evaporationBiocideAlkali orthophosphate fertiliserMonopotassium phosphateChemistry
Energizing formulations of phosphorous and potassium fertilizer are disclosed that comprise maximally efficient phosphorous pentoxide and di-potassium monoxide combinations. Methods of manufacture and use for these compounds and formulations are also disclosed. The fertilizer formulations comprise both solid and liquid formulations having variable or fixed pH ranges that are acceptable for aerial, foliar, and soil applications, and suitable for all forms of perennial trees, vines and annual crops. The formulations further possess the ability to control pathogenic soil microorganisms through the use of, for example, formulations comprising combinations of monopotassium phosphite, monopotassium phosphate. monopotassium nitrite, monopotassium nitrate, monopotassium sulfite and monopotassium sulfate.
Owner:ALYESHMERNI ALFRED
Anti-explosive fertilizer coatings
InactiveUS6930139B2Limit hydrocarbon infiltrationReduce hydrocarbon infiltrationCosmetic preparationsBiocideAmmonium nitrateOxidizing agent
Coatings for agricultural grade fertilizer particles and industrial grade ammonium nitrate are provided which when applied to particles form a protective film which acts as a barrier to inhibit or prevent hydrocarbon infiltration of the fertilizer particle pores and also to physically separate the fertilizer particles and hydrocarbon materials. In so doing, the coating greatly reduces the efficacy of the fertilizer particles as an oxidizing agent for use in incendiary devices, thereby deterring or preventing the use of agricultural grade fertilizers or industrial grade ammonium nitrate in creating weapons of terror.
Owner:SPECIALTY FERTILIZER PROD LLC
Method for preparing ultrafine activated phosphorusore compound fertilizer
InactiveCN1935749AGood effectPrevent compactionFertilisers by pryogenic processesFertilizer mixturesApatiteHigh energy
The invention is an ultrafine activated phosphorite compound fertilizer preparing method, crushing raw material into coarse powder by crusher and universal mill, and then crushing the coarse powder into ultrafine phosphorite powder as premix by ball mill or vibration mill; adding additive and humic acid in the premix and making high energy activation treatment by blending mill or vibration mill, making concentrated prilling and making the product. And the invention mechanically mills phosphorite by high input energy, improves chemical activity of apatite in phosphorite by mechano-chemical activation, and improves the releast- sustained speed of phosphor compounds in soil. And the prepared compound fertilizer has fast effect, long-time stability, and soil improving effect. And the invention is a good phosphorite compound fertilizer preparing method.
Owner:TSINGHUA UNIV
Dedicated composite fertilizer, microfertilizer for medlar and its application method
InactiveCN1962566AReduce manufacturing costImprove appearanceFertilising methodsFertilisers by pryogenic processesPhosphateRare earth
The invention discloses four specific composite fertilizers of matrimony vine and four liquid micro-fertilizers and mating fertilizing technique, which comprises the following steps: adopting aquacare, double super phosphate of lime and potassium sulfate as raw material; preparing four specific composite fertilizers of matrimony vine with different proportion of N, P and K; utilizing aquacare, KH2PO4, K2SO4, EDTA, CuSO4, ZnSO4, MnSO4, FeSO4, ammonium molybdate, methionine, sodium humic acid, borax, sodium selenite and rare earth nitrate as raw material to prepare the product.
Owner:周学义
Polyphosphate fertilizer combinations
A composite particle and a population of particles comprising a water-insoluble polyphosphate composition, methods of producing, and methods of using the same are provided. The polyphosphate composition may comprise at least one alkaline earth metal selected from calcium and magnesium and optionally at least one nutrient ion selected from the group consisting of potassium, ammonium, zinc, iron, manganese, copper, boron, chlorine, iodine, molybdenum, selenium or sulfur.
Owner:AGTEC INNOVATIONS
Compacted muriate of potash fertilizers containing micronutrients and methods of making same
ActiveUS20130031943A1Superior and uniform elemental and granule size distributionWithout compromising handling and storage qualityAlkali orthophosphate fertiliserAmmonium orthophosphate fertilisersAdditive ingredientPotash
A granular cohered MOP fertilizer having one or more micronutrients, and one or more binding ingredients. The fertilizer is prepared by compacting MOP feed material with one or more micronutrients and one or more optional binders to form a cohered MOP composition. The cohered MOP composition is then further processed, such as by crushing and sizing, to form a cohered granular MOP product containing micronutrients. The process yields a fertilizer product containing micronutrients with superior elemental and granule size distribution without comprising handling or storage qualities.
Owner:THE MOSAIC COMPANY
Method for using fly ash to prepare silicon compound fertilizer
InactiveCN107188766AIncrease productionTake advantage ofCalcareous fertilisersMagnesium fertilisersSodium BentoniteFiltration
The invention discloses a method for using fly ash to prepare silicon compound fertilizer. The method comprises the following steps of firstly grinding fly ash to 150-200 meshes, making the ground fly ash sufficiently react with dilute hydrochloric acid, conducting filtration, afterwards obtaining silicon-containing residue, and at the same time conducting evaporative crystallization on filtering liquor to obtain a solid mixture containing calcium chloride and magnesium chloride crystalline; then making the silicon-containing residue react with a sodium hydroxide solution to obtain a liquid mixture containing sodium silicate; finally mixing the mixture containing the sodium silicate solution with humic acid, nitrogenous fertilizer, phosphate fertilizer, potash fertilizer, bentonite and trace-element fertilizer and the like to conduct pelletizing to produce the silicon compound fertilizer. The prepared silicon compound fertilizer is high in the content of soluble silicon, elements in the fly ash are fully utilized, the nutrients are more comprehensive, and the method for using fly ash to prepare the silicon compound fertilizer has the advantages that the yield of crops is increased, the quality is improved, and the soil is improved.
Owner:山东乡里乡亲互联网科技股份有限公司
Micronutrient fertilizers and methods of making and using the same
A water insoluble micronutrient fertilizer, methods of producing, and methods of using the same are provided. The fertilizer may comprise at least one first micronutrient selected from the group consisting of chromium, cobalt, copper, iron, manganese, and zinc; a polyphosphate; and optionally at least one second micronutrient selected from the group consisting of boron, chlorine, iodine, molybdenum or selenium. The fertilizer compounds are preferably water insoluble, dilute acid soluble, and free-flowing powders.
Owner:AGTEC INNOVATIONS
Microorganism-containing compound fertilizer and preparation method thereof
InactiveCN108341712AIncrease productionPlant weightAlkali orthophosphate fertiliserAmmonium orthophosphate fertilisersPhosphateMicrobial agent
The invention discloses microorganism-containing compound fertilizer and a preparation method thereof. The microorganism-containing compound fertilizer has a water content of less than or equal to 5.0%; based on a mass fraction, the total nutrient of nitrogen, phosphorus and potassium is more than or equal to 35%, and the effective viable cell count is not less than 2.0*10<7> CFU / g; the compound fertilizer is mainly prepared from 10-40% of urea, 10-35% of monoammonium phosphate, 10-40% of ammonium sulfate, 10-40% of potassium sulfate, 10-35% of potassium chloride, 2-15% of calcium-magnesium-phosphate fertilizer, 2-15% of clay, 0.3-0.5% of coating material and 0.01-1% of microbial powder. The preparation method provided by the invention effectively avoids the influence of high temperature on effective viable counts of microorganisms in a fertilizer production process; the yield, single plant weight and Vc content of lettuce treated by using the compound fertilizer provided by the invention are generally higher than those of lettuce treated by using the common compound fertilizer; the effect of the compound fertilizer is significantly higher than that of the similar products in the market; the compound fertilizer can increase the yield and improve the quality, maintains the survival rate of the microbial agent, and has certain stability.
Owner:中化化肥有限公司临沂农业研发中心
Liquid foliage fertilizer and its producing method
InactiveCN1994980AImprove solubilityImprove buffering effectAlkali orthophosphate fertiliserAmmonium orthophosphate fertilisersDipotassium hydrogen phosphatePhosphoric acid
The invention discloses a liquid leaf fertilizer and manufacturing method, which comprises the following parts: 230g solid polyammonium phosphoric acid, 300g dipotassium hydrogen phosphate with 3 crystal water (k2HPO4 .3H2O), 20g aquacare, 430g water, 12g octal-sodium boric kernite, 5g zinc sulphate heptahydrate and 3g sodium nitride solution.
Owner:王连祥 +2
Flower culture soil and preparation method thereof
InactiveCN107197707AImprove firmnessHigh in nutrientsAlkali orthophosphate fertiliserExcrement fertilisersYeastDisease
The invention provides flower culture soil and a preparation method thereof. The flower culture soil comprises, by weight, 14-16 parts of straw, 11-13 parts of corn cob, 7-9 parts of sorghum husk, 7-9 parts of sawdust, 6-8 parts of Tenebrio molitor excrement, 4-6 parts of perlite, 4-6 parts of medical stone, 2-5 parts of water-retaining agent, 10-49 parts of pig manure, 3-6 parts of beer yeast paste, 30-65 parts of carbon powder and 0.2-0.5 part of compatibilizer. The flower culture soil has the advantages that flowers cultured by the culture soil are high in survival rate and low in disease and pest probability, and biological chains can fast form in the culture soil. The preparation method is simple and easy to achieve batch production.
Owner:兰溪市顺光园艺技术有限公司
Method for accelerating soil carbon in corn-wheat crop rotation system
ActiveCN106342432AImprove micro-ecological environmentPromote carbon sequestrationCalcareous fertilisersMagnesium fertilisersGrowth phasePresent method
The invention relates to the field of micro-organisme fungicide and soil amelioration, and particularly discloses a method for accelerating soil carbon in the corn-wheat crop rotation system. The method is as follows: in the corn-wheat crop rotation system, after having harvested corn and wheat, shattering and returning to the field the corn straw and wheat straw, spraying the micro-organisme fungicide agent that is capable of accelerating the fermentation and decomposition of straw on the straw surface, and scattering organic fertilizer. After sowing corn and wheat, applying soil conditioner that contains azotobacter, combined with compound fertilizer, and spraying liquid amino acid fertilizer for plant during the growth phase of corn and wheat. The present method can reduce as much as possible the destabilization of soil and accelerate the decomposition of straw using biological bacterium, to guarantee the activity and diversity of micro-organisme in arable soil. The present method uses soil conditioner to regulate soil structure, thereby strengthening soil fertility and accelerating the accumulation of soil carbon.
Owner:INST OF ENVIRONMENT & SUSTAINABLE DEV IN AGRI CHINESE ACADEMY OF AGRI SCI +2
Acid combination one step reaction process for agricultural use products and associated methods
ActiveUS8216972B1High analysisSolution clarificationBiocideMagnesium fertilisersFungicidePhosphorous acid
A process for the manufacture of an aqueous composition that is a combination of a fungicide and fertilizer comprising the following steps:(1) dissolving phosphorous acid in phosphoric acid to form a solution of an acid mixture;(2) reacting the acid mixture of step (1) with an aqueous hydroxide solution creating an exothermic reaction under pressure; and,(3) cooling the reaction product to between about 35° C. to about 65° C.The reaction product prepared according to the above process can also be used as a bactericide.
Owner:PLANT FOOD SYST
Reclamation and improvement method for waste coal gangue stacking area
InactiveCN107743747AAccurate repairRepair goals are clearExcrement fertilisersContaminated soil reclamationEngineeringEarth surface
Provided is a reclamation and improvement method for a waste coal gangue stacking site. The method includes the steps of conducting reconnaissance and measurement on the waste coal gangue stacking site after earth surface arrangement, drawing the topographic map of the site, dividing into grids to conduct grid-type sampling, drawing the pH value distribution map of surface soil according a test result, according to pH value distribution, applying lime in a grading and zoning mode to adjust the pH value of the soil to neutral, after applying a basic fertilizer and spraying composite microbial inoculants, sowing green manure crops, and after turned root returning application, conducting crop rotation on commercial crops and returning application on crop straw. The method provides an effective solution channel for the reclamation, restoration and improvement of Chinese resource-based region coal gangue waste sites, especially, the high-sulfur-bearing waste coal gangue stacking site.
Owner:INST OF AGRI ENVIRONMENT & RESOURCE SHANXI ACAD OF AGRI SCI
Pollution-free paddy rice planting method
InactiveCN105248209AImprove disease resistanceIncrease productionCalcareous fertilisersClimate change adaptationGreen manureRice grain
The invention discloses a pollution-free paddy rice planting method. The method comprises the following steps: A, planting milk vetch as green manure in a rice field, and applying a basic manure, wherein 500-800 kg of the basic manure is applied to each mu of the rice field; B, after the rice field is subjected to exposure, performing rotary tillage, ridge separation, irrigation and rice transplanting; C, applying a compound fertilizer to seedlings after the seedlings are inserted; D, grazing 8-15 7-10-day-old ducks to each mu of the rice field after 15-20 days of rice transplanting, evicting the ducks from the rice field after 25-40 days, spraying a biological pesticide, draining for 7-10 days, topdressing 30-100 kg of the compound fertilizer used in the step C to each mu of the rice field, irrigating till the depth of water is 8-10 cm, grazing 5-10 7-10-day-old ducks to each mu of the rice field again, and evicting the ducks from the rice field before 15-20 days of rice mature. According to the pollution-free paddy rice planting method, the yield is high, pollution is avoided, produced rice tastes good, and meanwhile, high-quality duck is obtained.
Owner:ANHUI MUMAHU AGRI DEV GRP
Fertilizer composition and method for preparing the same
ActiveUS20140260467A1Increase surface areaMaximize surface areaBiocideCalcareous fertilisersSmall particleNutrient
A method of producing a granulated and compacted fertilizer having incorporated micronutrients in which the granulated primary nutrient and micronutrients are mixed at smaller particle sizes before being compacted into a larger, easier to handle particle sizes.
Owner:THE MOSAIC COMPANY
Instant macroelement water-soluble fertilizer capable of increasing soil organic matter content
InactiveCN105646083AImprove physical and chemical conditionsImprove biological characteristicsAlkali orthophosphate fertiliserAmmonium orthophosphate fertilisersDipotassium phosphateDrip irrigation
The invention relates to fertilizer, in particular to instant macroelement water-soluble fertilizer capable of increasing the soil organic matter content. The instant macroelement water-soluble fertilizer capable of increasing the soil organic matter content is prepared form components in parts by weight as follows: 100-200 parts of concentrated molasses yeast powder, 8-15 parts of poly potassium aspartate, 50-80 parts of citric acid, 3-10 parts of chitin, 30-50 parts of potassium carbonate, 10-30 parts of boric acid, 150-300 parts of urea, 200-400 parts of anhydrous dipotassium phosphate and 180-280 parts of ammonium polyphosphate. The fertilizer can be quickly dissolved, is fully water-soluble, can be applied to facility agriculture such as sprinkling and drip irrigation and the like and realizes integration of water and fertilizer and the efficiency of saving water, fertilizer and labor. The fertilizer can provide organic matters and various macroelement nutrients for soil and crops after usage.
Owner:王越
Process for the manufacture of bio-release iron-manganese fertilizer
InactiveUS7691171B2Improve usabilityBetter bio availabilitySuperphosphatesPhosphatesPyrolusiteWater insoluble
This invention provides a process for the preparation of water insoluble, bio-release iron-manganese fertilizer which comprises, heating phosphoric acid with a mixture of (i) source of iron oxide such as goethite and hematite, (ii) pyrolusite and (iii) one or more basic compound(s) selected from oxide(s) or carbonate(s) of magnesium, calcium, sodium and potassium, (b) neutralisation followed by drying and pulverisation.
Owner:AGTEC INNOVATIONS
Production of npk or np material containing polyphosphates
ActiveCN101595078AFertilisers by pryogenic processesAmmonium salt fertilisersPolyphosphateEvaporation
It is disclosed a method for the nitrosphate process to produce NPK or NP material with polyphosphates by reducing the pressure in the evaporation stage and / or increasing the temperature in the evaporation stage and / or controlling the temperature in the crystallization stage wherein a material is produced containing a mixture of MAP, DAP, DCP and optionally apatite and a controlled amount of condensed phosphates (polyphosphates), and N / P and Ca / P ratios of the NPK material are N / P >= 0.95 and 1.0 >= Ca / P = 0.2 and products thereof.
Owner:YARA INT ASA
Plant composite insecticidal fertilizer and its production technology
InactiveCN1785938AEffective for loose useEasy to useClimate change adaptationExcrement fertilisersAgricultural scienceNicotiana tabacum
The present invention relates to a plant composite pesticide fertilizer and its production process. Its composition includes the following components: (by weight portion) 50-70 portions of tobacco scraps, 5-15 portions of cotton seed peel edible mushroom wastes, 2-5 portions of bean cake, 3-5 portions of fermented chicken manure, 2-5 portions of pottery clay and furnace clinker, 10-15 portions of potassium dihydrogen phosphate and 5-10 portions of urea. Besides, said invention also provides the concrete steps of its preparation method and its application method.
Owner:阎成谦 +2
Oxygen supply type growth promoting flower organic composite fertilizer
InactiveCN106977295AImprove survival rateWell mixedCalcareous fertilisersMagnesium fertilisersPhosphateOyster
The invention discloses an oxygen supply type growth promoting flower organic composite fertilizer, which is prepared from raw materials including dry pond silt, modified oxygenates, modified slow release agents, modified filling materials, urea, monoammonium phosphate, potassium chloride, ammonium chloride, diammonium phosphate, calcium biphosphate, zinc sulfate, ammonium molybdate, magnesium sulfate, oyster shell powder, kaolin powder, talcum powder, dolostone powder, zeolite powder, thiourea, dicyandiamide, chicken manure, cicada manure, worm excretion, maize straws, rapeseed cake, bagasse, fly ash, perilla seeds, humic acid and EM strains. The organic composite fertilizer provided by the invention has the advantages that rich nutrition substances can be provided for the growth of flowers; in addition, sufficient oxygen can be provided for the basic growth of the flowers; the growth of the flowers is effectively promoted; the survival rate of the flowers is improved.
Owner:天长市天兴园林绿化工程有限公司
Acid combination one step reaction process for agricultural use products and associated methods
ActiveUS8193119B2Minimizes or eliminates wasteful “free water”Avoid reactionBiocidePhosphatesPhosphorous acidContinuous reactor
A process for the manufacture of an aqueous composition that is a combination of a fungicide and fertilizer comprising the following steps:(1) dissolving phosphorous acid in phosphoric acid to form a solution of an acid mixture;(2) reacting the acid mixture of step (1) with an aqueous potassium hydroxide solution at a temperature of about 65° C. to about 260° C. in a continuous reactor while maintaining the ratio of potassium to phosphorous in various mole ratios thereby forming a reaction mixture comprising potassium phosphates, potassium polyphosphates, potassium phosphites, and potassium polyphosphites and potassium phosphate phosphite copolymers; and,(3) cooling the reaction mixture rapidly at least 1° C. to 60° C., to below about 35° C. to about 65° C.Using a similar process a composition having fungicidal properties is prepared by reaction phosphoric acid with potassium hydroxide.The reaction mixtures prepared according to each of the above processes are also part of this invention.
Owner:PLANT FOOD SYST
Process for producing fertilizer comprising sparingly water-soluble phosphatic fertilizer, urea/aliphatic aldehyde condensation product and water-repellent substance
InactiveUS7108732B2Difficult to controlGood effectBiocideBio-organic fraction processingNitrogenElution
Owner:JCAM AGRI
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