8970 results about "Potassium sulfate" patented technology

A method for treating a recirculating water system which comprises introducing into said water system a multifunctional, multilayer tablet, wherein the multilayer tablet comprises a fast dissolving layer and a slow dissolving layer, wherein said fast dissolving layer releases a combination of active ingredients including a member selected from the group consisting of lithium hypochlorite, calcium hypochlorite, trichloroisocyanuric acid (TCCA), anhydrous sodium dichloroisocyanurate, sodium persulfate, potassium persulfate, potassium monopersulfate, sodium monopersulfate, and mixtures thereof, and at least one of a clarifier, chelating agent, sequesterant, algaestat, water softener, algaecide, corrosion inhibitor, scale inhibitor, flocculent, disintegrant, dispersant, colorant, dissolution control agent, fragrance, or surfactant and, wherein said slow dissolving layer includes a member selected from the group consisting of trichloroisocyanuric acid (TCCA), calcium hypochlorite, 1,3-dichloro-5,5-dimethylhydantoin (DCDMH), 1,3-dibromo-5,5-dimethylhydantoin (DBDMH), 1-bromo-3-chloro-5,5-dimethylhydantoin (BCDMH), 1,3-dichloro-5-ethyl-5-methylhydantoin (DCEMH), 1,3-dibromo-5-ethyl-5-methylhydantoin (DBEMH), 1-bromo-3-chloro-5-methyl-5-ethylhydantoin (BCEMH), and mixtures thereof, and at least one of a clarifier, chelating agent, sequesterant, algaestat, water softener, algaecide, corrosion inhibitor, scale inhibitor, flocculent, disintegrant, dispersant, colorant, dissolution control agent or surfactant.

The invention relates to a drilling fluid plugging agent while drilling, comprising 60-100 parts of plant fibers, 5-20 parts of asphalt, 5-15 parts of graphite and 5-20 parts of weak water absorbent gel by weight. The weak water absorbent gel is a polymer which has mean grain size of 200-20 meshes and water absorbent multiple of 10-100g.g-1 and is prepared by reacting 20-60 parts of monomer, 0.05-1.0 part of potassium peroxydisulfate, 0.05-1.0 part of sodium bisulfite, 0.005-0.5 part of methylene-bis-acrylamide and 2-10 parts of inorganic fillers by weight under constant temperature of 20-60 DEG C for 8-12h by way of aqueous solution polymerization, drying and pelleting, wherein the polymeric monomer is one or more of acrylamide, acrylic acid, dimethyl diallyl ammonium chloride and 2-acrylamide-2-methyl propanesulfonic acid. The plugging agent has little effect on the rheological property of the drilling fluid, can reduce the API filtration and the coefficient of friction resistance of the drilling fluid in an auxiliary manner and is suitable for controlling leakage of and plugging the windows with high density and narrow pressure.

A method for producing sintered pellets and sintered pellets produced therefrom including mixing a dopant with water and kaolin clay to form substantially round and spherical green pellets and sintering the pellets to form a proppant. The dopant is selected from the group consisting of potassium carbonate, potassium sulfate, potassium chloride, mica, kalsilite, and combinations thereof.

A full nutrition fertilizer of biology type and its producing method belongs to organic complex fertilizer field in biology type. The components of the full nutrition fertilizer is 20-50% of organic waste liquid, 10-30% of urea, 8-15% of diammomium phosphate, 10-25% of potassium sulfate, 5-20% of medium trace element, 1-5% of microbial inoculum, 0-0.2% of root-promoting agent; 0-2% of solutizer, effective viable count content of the microbial inoculum of more than 1010 / g. The fertilizer is produced by adding the urea, diammomium phosphate, potassium sulfate, medium trace element, root-promoting agent, solutizer into organic waste liquid and blending uniformly, then adding microbial inoculum. The invention uses the wastes to produce fertilizer with a low cost a high availability and a good prospect in the fertilizer industry. The fertilizer can be widely applied to the vegetables, melon and fruits, food, tobacco, forests and different commercial crops.

A core composition of a metal-cored wire comprising a combination of graphite and potassium compounds has been proven to stabilize the arc in a straight polarity welding configuration. In particular, adding a combination of graphite and potassium manganese titanate (K2MnTiO4) and potassium sulfate (K2SO4) in the preferred combination of graphite and potassium compounds from the range of about 0.3% to about 5.0% wt resulted in a greatly stabilized arc, reduced spatter and reduced warpage while maintaining high deposition rates of the DCEN welding process

The invention provides a water-based drilling fluid composition containing an amine compound, which comprises the following components: a 0.5 to 5 weight percent of water-based amine compound as shown in formula I: RHN-Y-[OY']X-NHR', wherein Y, Y',x, R and R' are as defined in a manual; 0.1 to 1.0 weight percent of water-based tackifier which is selected from one or more types of xanthan gum, acrylamide-acrylic copolymer and hydroxyl ethyl cellulose; 0.5 to 5 weight percent of water-based fluid loss agent which is selected from one or more types of modified lignite, acrylic polymer, modified starch and modified cellulose; 2 to 12 weight percent of water-based inhibitor which is selected from one or more types of potassium chloride, potassium sulfate, formic acid, formic acid sodium, potassium chloride and epoxypropyltrimethylammonium chloride; and the composition can also further comprises coating agent, weighting agent, lubricant, borehole stabilizer and the like. The water-based drilling fluid composition has good inhibiting performance to clay shale drilling cuttings.

The invention relates to a stable curing agent of repairing heavy metal and toxic organic matter combined polluted soil. The stable curing agent comprises the following raw materials in percentage by weight: 10-30% of cement, 10-30% of coal ash, 20-50% of clays, 2-10% of an activating agent and 2-20% of an oxidizing agent, wherein the activating agent is a composition of one or more than two of magnesium oxide, aluminum oxide, titanium dioxide or molybdenum trioxide, and the oxidizing agent is a composition of one or more than two of sodium persulfate, calcium peroxide, potassium persulfate and ammonium persulfate. The raw materials are put into a grinder to be uniformly grinded and mixed to prepare the stable curing agent with the specific surface area of 400-800 / kg. The stable curing agent provided by the invention has the characteristics of low cost, good soil repairing effect and simplicity in construction.

The invention relates to a method for directly roasting and treating spent lithium ion batteries and recycling valuable metals, in particular to a method for recycling and treating spent lithium ion batteries using lithium cobalt oxide as an anode material. The method comprises the following steps: firstly, remove organic binder on an organic diaphragm material and an electrode material in the batteries by roasting at a temperature of 500 DEG C to 850 DEG C; crushing and mixing the roasted battery material with sodium sulfate (or potassium sulfate) and concentrated sulfuric acid before size mixing; carrying out secondary heat treatment in an electric stove at a temperature of 350 DEG C to 600 DEG C to convert metals in the spent lithium ion batteries, such as cobalt, copper, lithium, and the like into easily water-soluble sulfate which is leached by water or a dilute sulphuric acid solution; then, using an organic extracting agent to respectively extract the cobalt and the copper from a leaching solution and obtain a cobalt product and a copper product; using sodium carbonate to precipitate the metal lithium from the leaching solution after the cobalt and the copper are removed; and enabling the leaching solution to return treatment heat so as to secondarily treat materials. The invention has a metal leaching rate higher than 99.5 percent and a metal recovery rate higher than 99 percent.

The invention provides a specialized organic / inorganic composite biological medicine fertilizer for rape, and a preparation method thereof. The weight parts of composition raw materials are as follows: 60-80 parts of greenhouse garbage, 6-7 parts of pericarp, 6-8 parts of cotton straws, 8-10 parts of pig manure, 10-12 parts of plant ash, 10-12 parts of sugar residue, 20-25 parts of sodium humate, 10-11 parts of diammonium phosphate, 12-14 parts of potassium sulfate, 12-14 parts of urea, 12-14 parts of ammonium bicarbonate, 14-16 parts of medical stone, 12-14 parts of animal hair, 1-2 parts of EM strains, 20-22 parts of modified bentonite, 8-10 parts of celastrus orbiculatus, 3-4 parts of neem, 4-6 parts of monkshood, 3-5 parts of fiveleaf akebia fruit, 0.7-1.2 parts of boric acid, 1-1.2 parts of manganese sulfate, 2-4 parts of copper sulfate, 4-6 parts of eucalyptus oil and a proper amount of paraffin. A green organic fertilizer is obtained by mixing a plurality of organic wastes and fermenting the mixture, thereby reducing environment pollutions. The specialized organic / inorganic composite biological medicine fertilizer for the rape has the advantages of comprehensive nutrition and enhanced sterilizing effects by mixing the fermented organic materials and inorganic fertilizer and adding medicine juice of the Chinese herbal medicine having insectidical functions. With the application of the fertilizer, rape quality can be effectively increased; and the rape has green leaves, bright flower, prolonged flowering period, full seeds and increased output.

The invention relates to a phase-change energy-storage material which comprises the following components in percentage by mass: 75%-99% of an energy storage main body material, 0.1%-10% of a thickening agent, 0.2%-15% of a nucleating agent and 0.01%-8% of a reinforcing material, wherein the energy storage main body material comprises crystal water and salt; the thickening agent comprises one or more of an inorganic thickening agent, fibers, polyacrylates, polyurethanes and a natural polymer thickening agent; the nucleating agent comprises one or more of sodium pyrophosphate, sodium phosphate decahydrate, calcium sulfate dihydrate, potassium sulfate, potassium borate, barium hydroxide octahydrate, sodium phosphate dibasic dodecahydrate and sodium sulfate; the reinforcing material comprises one or more of metal and metal oxide powder, carbon materials, nanoparticles and foam materials. By selecting proper materials and ratio, the supercooling degree and the phase separation phenomenon are reduced and good circulating stability is achieved; especially the reinforcing material is added into a system to form a heat-conducting network so as to improve the heat conductivity of the material by more than two times.

The invention relates to a method for producing an amino acid tobacco-specific foliar fertilizer by using abandoned fur. The method comprises the following steps of: degreasing, drying and crushing various abandoned animal hair in slaughterhouses, hair in barber shops and various abandoned animal leather which are used as main raw materials; carrying out microbial fermentation, mainly Freund crack mould or other keratin decomposing bacteria fermentation; then decomposing and filtering to prepare a crude amino acid solution; and chelating the following components in parts by weight: 30-50 parts of crude amino acid solution, 15-18 parts of potassium sulfate, 15-25 parts of ammonium sulfate, 15-18 parts of potassium dihydrogen phosphate, 3-6 parts of humic acid potassium, 1.3-2 parts of trace elements, 0.3-0.5 part of surfactant, 0.5-1 part of chelating agent and 0.15-0.2 part of plant growth regulating agent. The tobacco-specific foliar fertilizer has the effects of promoting growth of tobacco roots, enhancing the absorption and utilization of tobacco on soil and the fertilizer, promoting lengthening, widening and thickening of tobacco, enhancing the ability of disease resistance, and improving the quality and yield of tobacco leaves.

A method for treating a recirculating water system which comprises introducing into said water system a multifunctional, multilayer tablet, wherein the multilayer tablet comprises a fast dissolving layer and a slow dissolving layer, wherein said fast dissolving layer releases a combination of active ingredients including a member selected from the group consisting of lithium hypochlorite, calcium hypochlorite, trichloroisocyanuric acid (TCCA), anhydrous sodium dichloroisocyanurate, sodium persulfate, potassium persulfate, potassium monopersulfate, sodium monopersulfate, and mixtures thereof, and at least one of a clarifier, chelating agent, sequesterant, algaestat, water softener, algaecide, corrosion inhibitor, scale inhibitor, flocculent, disintegrant, dispersant, colorant, dissolution control agent, fragrance, or surfactant and, wherein said slow dissolving layer includes a member selected from the group consisting of trichloroisocyanuric acid (TCCA), calcium hypochlorite, 1,3-dichloro-5,5-dimethylhydantoin (DCDMH), 1,3-dibromo-5,5-dimethylhydantoin (DBDMH), 1-bromo-3-chloro-5,5-dimethylhydantoin (BCDMH), 1,3-dichloro-5-ethyl-5-methylhydantoin (DCEMH), 1,3-dibromo-5-ethyl-5-methylhydantoin (DBEMH), 1-bromo-3-chloro-5-methyl-5-ethylhydantoin (BCEMH), and mixtures thereof, and at least one of a clarifier, chelating agent, sequesterant, algaestat, water softener, algaecide, corrosion inhibitor, scale inhibitor, flocculent, disintegrant, dispersant, colorant, dissolution control agent or surfactant.

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 invention relates to a flue gas pollutant treatment process and aims to provide a device and method for simultaneously desulfurizing and denitrifying a flue gas by ozone catalytic oxidation process. The device comprises a desulfurization and denitrification tower, an ozone generator, absorption liquid circulating equipment and desulfurization and denitrification by-product post-treatment equipment. Ozone enters from a flue or the lower part of the desulfurization and denitrification tower, a catalyst is added to an absorption liquid, and the absorption liquid is injected in from the upper part of the desulfurization and denitrification tower, so that SO2 and NO in the flue gas are oxidized by ozone with high efficiency under the action of the catalyst, and in combination with the absorption of water or alkaline substances, SO2 and NOx in the flue gas are recovered in the form of high value-added sulfuric acid and nitric acid products, or ammonium sulfate / ammonium nitrate mixed nitrogen fertilizers, potassium sulfate / potassium nitrate mixed potassium fertilizers or ammonium / potassium compound fertilizers respectively, thereby achieving resource recovery and value maximization of the desulfurization and denitrification process. The desulfurization and denitrification process provided by the invention has the advantages of simple structure, low investment and low operation cost. The desulfurization rate and the denitrification rate of the desulfurization and denitrification process provided by the invention can reach more than 96% and more than 90% respectively.

The invention belongs to the technical field of fertilizer, particularly relates to disease-resistant compound biofertilizer special for corn and further relates to a preparation method of the disease-resistant compound biofertilizer special for the corn. The disease-resistant compound biofertilizer special for the corn comprises carbamide, compound microbial agents, bran, chitosan, furfural residues, ammonium sulfate, potassium sulfate, monoammonium phosphate, rape seed cakes, manure, humic acid, sesame seed cakes, microelements, calcium superphosphate and plant ash. The nutrient elements of the disease-resistant compound biofertilizer special for the corn are balanced, microelement compositions are abundant, soil productivity and soil fertility can be improved effectively, addition of compound microbial agents can remarkably restrain main corn diseases occurring universally, the disease-resistant compound biofertilizer special for the corn is long in fertilizer efficiency, corn yield can be improved by 25 to 30 percent effectively, the corn diseases can be prevented and cured effectively, soil can be improved effectively through long-term utilization of the disease-resistant compound biofertilizer, and the disease-resistant compound biofertilizer special for the corn can play a role in the whole growth period of the corn.

The invention relates to a method for growing blueberry, which comprises soil modification, seedling cultivation, seedling planting and fertilization. In the invention, a soil modifier is applied to soil and the organic materials in the soil modifier increase the content of fatty acids such as acetic acid and propionic acid of the soil, so the rate of mycorrhizal infection, which is capable of promoting the growth of the blueberry, improving blueberry yield, contributing to productivity improvement and soil modification and improving quality and sugar content of fruits, of the blueberry is improved; meanwhile, pine soil and grass carbon are used to regulate the pH value of the soil. In the invention, a rooting medium which contains IAA growth hormone and glycine betaine is used to cultivate the seedlings, so the rooting rate of cuttings and transplanting survival rate are improved, the seedling cultivation time is reduced greatly, and the propagation efficiency is improved obviously. In the invention, a microbial fertilizer, a potassium sulfate type compound fertilizer, ammonium sulfate and diammonium phosphate are used for fertilizing the blueberry, wherein the ammonium sulfate can lower the pH value of the soil, namely the ammonium sulfate provides nutrients for the blueberry for growth and improves the growing environment of the blueberry; and thus, the blueberry yield is more improved effectively.

A multi-element liquid fertilizer contains active components, additive and water. Its active components includes 13 components, such as potassium sulfate, borax, copper sulfate, manganese sulfate, zinc sulfate, etc.. The additives include 9 components, such as disodium hydrogen phosphate, nitric acid, useful bacteria, useful enzyme, etc.. It can improve the activity of plant cells, change physiological mechanism of plant, increase yield, and make plant robust.

The invention discloses a special saline-alkali-soil improvement fertilizer prepared by modification with flue gas desulfurization gypsum and a preparation method thereof. The special improvement fertilizer comprises the following components in parts by weight: 40-80 parts of flue gas desulfurization gypsum, 1-3 parts of citric acid, 0.5-1.5 parts of magnesium sulfate, 1-5 parts of aluminum sulfate, 1-5 parts of ferrous sulfate, 10-30 parts of weathered coal, 10-20 parts of cattle manure or chicken manure, 1-5 parts of urea, 0.5-2.5 parts of ammonium sulfate, 1-3 parts of potassium sulfate, 1-3 parts of monoammonium phosphate, 0.1-0.5 part of zinc sulfate, 0.1-0.5 part of manganese sulfate and 3-10 parts of bentonite. The fertilizer is reasonable in design, provides an effective solution for inland saline-alkali soil of China, and has higher practical value and wide market prospects.

The invention discloses a preparation method of a composite heat conduction graphene membrane and the composite heat conduction graphene film. The preparation method comprises the following steps: S1, putting crystalline flake graphite or graphite powder into a mixed solution of concentrated sulfuric acid, potassium persulfate and phosphorus pentoxide, soaking for a day and a night, then carrying out suction filtration, drying, and carrying out pre-oxidizing; S2, oxidizing pre-oxidized graphite further by adopting a Hummers method, that is, oxidizing fully in concentrated sulfuric acid and potassium permanganate, then adding deionized water for diluting, and carrying out repeated washing and suction filtration, so as to obtain an oxidized graphene aqueous solution; S3, spraying the oxidized graphene aqueous solution on a substrate by adopting a thermal spray method, and depositing, so as to obtain an oxidized graphene film; S4, reducing the oxidized graphene film, so as to obtain the graphene film; and S5, laminating the graphene film, so as to obtain the composite heat conduction graphene film. Compared with the prior art, the preparation method is simple, the cost is low, and the prepared composite heat conduction graphene film has a favorable heat conduction performance.

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 granular composite fertilizer consists of urea 45-50 weight portions, potassium chloride or potassium sulfate 20-25 weight portions, ammonium phosphate 20-30 weight portions and stuffing 1-5 weight portions. It is prepared by using high temperature molten urea as carrier to fuse the materials homogeneously and through tower top showering to cool and pelletize. The tower has height of 60-120 m and diameter of 8-20 m. During preparation, water is introduced continuously for adhering to pelletize without caking. The melt composite fertilizer preparing process has the advantages of no material returning, greatly raised production capacity, low power consumption, high apparatus utilization, less environmental pollution, etc.

The invention relates to a one-time nitrogen supply and fertilizer application method capable of improving applied nitrogen fertilizer effect of cured tobacco. The method is characterized in that: organic fertilizer decomposed cake fertilizer, decomposed pig manure, inorganic potassium nitrate fertilizer, special compound fertilizer for the cured tobacco and calcium superphosphate are used as base fertilizers; the fertilizers are applied in holes uniformly at the same day of transplanting the cured tobacco, tobacco ridges are covered by using a double-color plastic film, furrows of the tobacco ridges are connected with a drainage ditch, and the nitrogen amount of the organic fertilizer is 55 to 65 percent of the nitrogen amount of the base fertilizers; the nitrogen amount of the inorganic fertilizer is reduced by 45 to 55 percent according to the nitrogen amount of the inorganic fertilizers of the local base fertilizers and additional fertilizers, wherein the nitrogen of the potassium nitrate form accounts for 55 to 63 percent; in 25 to 35 days after the cured tobacco is transplanted, the film is uncovered, soil dressing is performed, and first top dressing is performed by using potassium sulfate and adopting a spraying mode; and second top dressing is performed in 40 to 45 days after transplanting, and third top dressing is performed after topping. In the method, the utilization rate of the cured tobacco nitrogen fertilizer is improved by 30 to 70 percent compared with the traditional fertilizer application, and the agricultural utilization rate of the cured tobacco nitrogen element is improved by 63 to 176 percent compared with the conventional fertilizer application; and the method is suitable for southern high-temperature rainy tobacco regions such as Guangdong and the like.

The invention relates to a preparation method of a soil conditioner, belonging to the technical field of fertilizer preparation. The soil conditioner is mainly prepared from the following raw materials in parts by weight: 50-70 parts of plant straw carbon, 20-35 parts of fowl / livestock dung, 10-15 parts of bone meal, 1-8 parts of potassium sulfate, 2-8 parts of wood vinegar liquid, 3-9 parts of plant growth regulator and 0.5-1 part of active agent. The preparation method comprises the following steps: preparing carbon powder, pretreating the fowl / livestock dung, preparing a mixture, assaying and detecting, granulating and packaging. The soil conditioner is prepared by mixing the crop straw / bamboo / wood / grass carbon, which is used as the main component, with certain amounts of trace elements, plant growth regulator and bamboo / wood / grass vinegar liquid; since the soil conditioner not only is rich in the three main nutrient elements (nitrogen, phosphorus and potassium) which are essential for crops, but also contains secondary and trace elements, such as calcium, magnesium, sulfur, iron, boron, molybdenum, copper, cobalt and the like, the nutrient proportion of the soil conditioner is reasonable; and when being used as a conditioner, the soil conditioner can increase the organic content of soil and provide more comprehensive nutrients for crops, so that the crops have the advantages of good growth vigor, plump grains and much higher yield.

The invention relates to a method for preparation of lithium carbonate extracting lithium from lithionite. The invention consists of milling, leaching and filtering after modifying by broasting lithonite ore together with the additive findings such as calcium fluoride, calcium sulfate and sodium sulfate at a certain temperature, adding sodium carbonate into the leachate to deposite lithium ion forming the deposition of lithium carbonate, and washing and drying the solid gained by filtering to get the product of lithium carbonate. The filtered mother liquid returns to the circulation to deposit lithium ion. After secondary circulation, we get the mixed salts of potassium sulfate and sodium sulfate as the educts by washing and drying the aforementioned filtered mother liquid. Some of the mixed salts return as findings roasted with lithonite ore for circulation use, while others can be used as raw material for preparation of potassium sulfate.

The invention provides a preparation method of a carbon-based compound slow-release fertilizer. Raw materials comprise, by weight, 5 to 10 parts of straw biological black carbon, 2 to 5 parts of pyroligneous liquor, 21 to 34 parts of enzyme-free bacteria chicken manure, 10 to 15 parts of bone meal, 18 parts of potassium sulfate, 22 to 24 parts of ammonium biphosphate, 11 to 12 parts of large-granule urea and 2 to 5 parts of water. The preparation method comprises putting the crushed enzyme-free bacteria chicken manure, straw biological black carbon, bone meal, large-granule urea, ammonium biphosphate and potassium sulfate into a ZLC-300 type mixer for mixing and stirring, putting them into a KP-300 type organic fertilizer granulator for granulating after uniformly mixing, adding 2 to 5 parts of the pyroligneous liquor and 2 to 5 parts of water while granulating, naturally cooling the resulting to be lower than 28 DEG C after the granulation, and packaging it, wherein the enzyme-free bacteria chicken manure is disinfected for 2 to 3 hours under 2 Pa in a disinfection pot, dried in a tumble dryer, crushed, and sieved by a 60-mesh sieve, with a water content being less than 11 %.

The invention discloses a method for recovering potassium elements from sintering ashes of steel and iron works and preparing potassium sulfate. The method comprises the following main steps of: A. removing potassium by adopting a circulating industry washing leaching solution mode, and carrying out solid-liquid separation on suspension liquid by adopting a centrifugal filtration or centrifugal precipitation mode; B. adding NH4HCO3 into the potassium removing solution for removing impurities, and adding active carbon or industrial coke powder for decoloration; and C. adding industrial (NH4)2SO4 for evaporation and crystallization to prepare the potassium sulfate. The invention can completely eliminate corrosion caused by circulating gathering of alkali metal of potassium, sodium and the like in the iron-making blast furnace and the adverse effects on sintering electric dedusting system efficiency and the like when the sintering ashes are reused as ingredients directly, and simultaneously realize high-efficiency recycling of the potassium resource.

This invention involves a mushroom cultivation material and production process, it belongs to the field of bio-engineering technology. This mushroom cultivation material contains Chinese crud drug residue 30 ~ 40 share, cotton shells 50 ~ 60 share, urea 1 ~ 2 share, wheat bran 5 ~ 7 share, potassium sulfate 0.5 to 1.5 share, calcium superphosphate 0.5 to 1.2 share, zinc sulfate, magnesium sulfate, borax, ferrous sulfate together for 0.4~1 share, calcined lime 0.5 to1.3 share. Because of using materials containing substances such as Chinese crud drug residue, the produced mushroom cultivation material of this invention has antibacterial effect. Through the implementation of the invention reached so no longer waste residue cause environmental pollution, reduce the factory heavy economic burden caused by the sewage problem.

The invention provides selenium-rich nutrient solution, which is characterized by being prepared by the following raw materials in parts by weight: 25-28 parts of sodium selenite, 12-15 parts of ammonium sulfate, 13-15 parts of anhydrous boric acid, 15-20 parts of potassium sulfate, 5-10 parts of clay, 10-15 parts of diammonium phosphate, 2-5 parts of fulvic acid, 0.5-1 part of zinc chloride, and the like. The nutrient solution not only contains major elements required for the growth of carambola, and is rich in trace elements, organic acid and microorganism flora, but also is fed with medicament with efficacies of sterilization and prevention, so as to play a role in insect disease prevention while spraying.

Disclosed is a grease-form water-soluble humic acid fertilizer, which comprises (by weight percent) 20-45% of weathered coal powder, 10-35% of urea, 5-15% of phosphoric ammonium, 3-25% of potassium chloride, 4-30% of potassium sulfate, 0-20% of raw material containing N, P, K, 0-5% of medium and trace element compounds, 1.0-3.55 of sodium hydroxide, 0.1-0.5% of polyacrylamide, and 15-35% of water.

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).