142 results about "Iron sulphate" patented technology

The invention relates to a preparation method for a zinc-iron-selenium-rich biological fertilizer and a usage, which belongs to the technical field of crop production. Water is added into pig manure, silkworm excrement, human excrement and colza cakes for a fermentation to get mother liquor of the biological fertilizer; zinc sulfate, green copperas, sodium selenite are added into the mother liquor for reactions to get zinc-iron-selenium-rich biological foliar fertilizer for the rice. The fertilizer is separately sprayed in the booting stage and the full heading stage of the rice, with an amount of 1000ml per mu. The function rice, with zinc content 19.4 to 28.7mg/kg, iron content 7.0 to 20.2mg/kg, and selenium content 0.08 to 0.15 mg/kg, measures up to the limit standards of zinc, iron, and selenium in the national food standards. Organic selenium accounts for more than 99% of the total selenium in the zinc-iron-selenium-rich function nutritive rice. The preparation method for the zinc-iron-selenium-rich biological fertilizer proves effective, economical, safe and non-polluted through twice foliage sprays with zinc-iron-selenium fertilizer for the rice as an experiment.

The invention discloses a method for recovering lithium from lithium iron phosphate. The method disclosed by the invention comprises the following steps: dissolving waste lithium iron phosphate slag with sulfuric acid and ferric sulfate, leaching iron, lithium and phosphorus, adding an oxidizing agent, reacting iron and phosphate radicals to produce an iron phosphate precipitate and a small amountof ferric hydroxide, converting lithium into a water-soluble lithium sulfate solution, filtering to obtain the lithium sulfate solution, adding sodium carbonate into the lithium sulfate solution to prepare a lithium carbonate product, and adding sodium phosphate or phosphoric acid to prepare lithium phosphate; dissolving the lithium phosphate with ferric sulfate again to obtain the lithium sulfate solution and a compound taking iron phosphate as a principle component, returning the lithium sulfate solution to the system to prepare lithium carbonate, and calcining the iron phosphate slag to remove organic matters and carbon in the slag; and slurrying to prepare cell grade iron phosphate. According to the method for recovering lithium from lithium iron phosphate disclosed by the invention,the lithium is totally converted into the product lithium carbonate in the method, the process flow is short, the cost is low, the lithium recovery rate is 97%, the metal lithium in the lithium iron phosphate can be effectively recovered, and all the slag is converted into the cell grade iron phosphate.

The invention discloses a composite flocculant and a preparation method and application thereof. The flocculant is prepared from rare-earth carbonate, sodium silicate and ferric sulfate/aluminum sulfate serving as raw materials by a composite copolymerization method. The effect of the composite flocculant of the invention is superior to that of the conventional polymeric ferric/aluminum silicate sulfate; the chroma removal rate of wastewater reaches over 90 percent; the COD Cr removal rate reaches over 65 percent; the removal rate of total phosphorus reaches over 88 percent; and the expense of a wastewater treatment medicament is reduced by 10 to 20 percent compared with PASS. The composite flocculant has rapid, large and solid alumen ustum, reduces the use amount of a single dye wastewater coagulating agent by over one half compared with PAC and by over 20 percent compared with PASS, improves the chroma removal rate of the wastewater by about 10 percent, has low processing cost, and improves the processing effect.

The invention discloses a metal alloy electroplating liquid. The metal alloy electroplating liquid is composed of the following raw material components in parts: 30-40 parts of copper sulphate, 30-50 parts of aluminium sulphate, 50-60 parts of copper chloride, 50-60 parts of nickel hydroxide, 20-30 parts of cobalt sulphate, 30-40 parts of cobalt chloride, 10-15 parts of iron sulphate, 30-35 parts of ferrous chloride, 50-58 parts of cuprous oxide, 16-18 parts of hydrochloric acid, 15-20 parts of acetic acid, 3-4 parts of Tween-60, 4-5 parts of sodium hydroxyethyl sulfonate, 5-6 parts of allyl polyethenoxy ether, 6-7 parts of polyethylene glycol, 3-4 parts of ammonium lauryl sulphate, 5-8 parts of sodium lauryl sulphate and 200-300 parts of deionized water. The metal alloy electroplating liquid is good in stability, the surface of a plated film is high in brightness and smoothness, the flexibility of a plated layer is obviously improved, and the defects of burrs, roughness and the like on the outer surface of a plated part are basically eliminated.

The invention provides a method for recovering iron, vanadium and chromium in vanadium-titanium magnetite concentrate, which comprises the following steps: milling the vanadium-titanium magnetite concentrate, carrying out magnetic separation, directly reducing iron, milling, carrying out magnetic separation to obtain an iron powder product and tailings, and treating the tailings by the following steps: pelletizing, roasting, leaching while stirring, boiling the leaching liquor, simultaneously adding sulfates, cooling to crystallize and precipitate to obtain polyvanadates and liquor containing chromium, adding ferric sulfate into the liquor containing chromium to reduce chromium, and adding Ca(OH)2 to generate Cr(OH)3 precipitate. The method can be used for synchronously and effectively recovering multiple valuable metals, such as iron, titanium, vanadium and chromium, in the vanadium-titanium magnetite concentrate so as to produce products with high added value, such as high-quality reduced iron powder, red vanadium, chromium, titanium and the like, thereby sufficiently and effectively utilizing the limited ore resources in a reasonable way. The metal recovery rate of the method is high, wherein the recovery rate of iron is higher than 90%, the recovery rate of vanadium is higher than 80%, the recovery rate of chromium is higher than 78%, and the recovery rate of titanium is higher than 90%. The method is not involved with the use of coke, and has the advantages of low power consumption and no environment pollution.

The invention relates to a high-efficiency fruit-nutritive physiological hyperchromic fertilizer and a preparation method thereof. Currently, the hyperchromic products in the market such as phytohormone, including products of ethane, abscisic acid, daminozide, most of such products adopt or contain hormone, have instable effect and easily cause adverse side effects, thus leading fruits to be soft and lowered in bin stability. The invention is a high-efficiency fruit-nutritive physiological hyperchromic fertilizer, the active ingredients of which comprise aminofusin, potassium sulfate, potassium chloride, borax, zinc vitriol, iron vitriol (FeSO4 question mark 7H2O), compound sodium nitrophenolate, chlormequat chloride with 50 percent of aqua and white sugar; the ingredients do not contain hormone, are non-poisonous and pollution-free, and have no adverse side effects. The high-efficiency fruit-nutritive physiological hyperchromic fertilizer contains various aminophenols, active substances for plant growth, a plurality of major elements and chelate trace elements, which are necessary for the growth and development of the fruit trees and vegetables, and is a novel organic and inorganic hyperchromic product integrating the advantages of various foliar fertilizers of inorganic nutrition type, organic type and growth conditioner type, etc. into a whole.

A chromium VI reducing composition comprising particles of solid material selected from the group consisting of iron (II) sulfate and tin sulfate, the particles being substantially uniformly dispersed within a liquid carrier. Methods for modifying hydratable cementitious materials using the chromium reducing composition are also disclosed and provide advantages over dry powder or dissolved forms of sulfate compositions when used in cement manufacturing.

The invention discloses a method for treating wastewater containing anilines, belonging to the field of environmental protection. The method comprises the following processing steps: (1) carrying out primary treatment on the wastewater, carrying out direct heating and air stripping by steam, cooling, absorbing and reusing the steam containing ammonia, and enabling the pH value of the wastewater to be less than 9; (2) after cooling the wastewater subjected to ammonia removal to 51-60 DEG C, adding acid to regulate the pH value of the wastewater to be 3.5-5; (3) adding industrial grade iron sulfate and hydrogen peroxide in sequence under the condition of stirring the wastewater, and reacting for 61-90 minutes; (4) finally adsorbing the wastewater subjected to catalytic oxidation with a 4-7g/mL activated carbon tower. The method can enable the contents of COD (chemical oxygen demand) and anilines in original wastewater to be reduced below the national emission standards, and has the characteristics of simple process, convenience in operation and good treatment effect.

The invention relates to a preparation method of a trace element water-soluble fertilizer capable of enhancing wetting performance. The method comprises the following steps: taking a humic acid reagent, EM bacteria, water-soluble starch, rice bran, wheat bran and water, fermenting the materials for 15-20 days in a sealing mode at the temperature of 45-65 DEG C, uniformly stirring the materials every three days, and performing constant-temperature drying at the temperature of 75 DEG C to obtain the modified humic acid reagent; taking water and heating water to the temperature of 30-40 DEG C, adding a chelating agent and an anti-oxidant, then adding trace elements, using boric acid and borax to adjust the pH value of a solution to 4.0-5.5, adding the modified humic acid reagent and a silicone surfactant, adding an antifoaming agent and the anti-oxidant, then adding iron sulfate heptahydrate, supplying water, stirring the materials while adding the materials, and after stirring, filteringinsoluble substances to obtain the trace element water-soluble fertilizer capable of enhancing wetting performance. The trace element water-soluble fertilizer capable of enhancing wetting performancehas good moistening performance on plants leaves, and has the advantages of high utilization rate, antioxidation, simple preparation method, low cost, and easy operation.

The invention relates to a production process of calcium iron zinc and selenium nutrition enhanced germinant long-shaped rice coarse rice powder, which is characterized in that: high quality long-shaped rice coarse rice is selected to guarantee the germinant rate, the high quality long-shaped rice coarse rice is sent into a classificator to remove weak and broken particles and to remove foreign matters such as stone, dust and the like; the selected coarse rice is washed by flowing water containing 0.5% sodium hypochlorite for three times so as to remove surface microorganisms, and then the coarse rice is washed by pure water for five times; the washed coarse rice is immersed in immersion solution at the room temperature for 9 hours, every liter of coarse rice immersion liquid contains 2g of calcium chloride, 0.25g of green copperas, 0.2g of zinc sulfate and 0.25mg of sodium selenite, the immersion liquid is replaced twice during the period of 9 hours so as to prevent the pollution of the microorganisms; the coarse rice is moisturized at 30 DEG C to germinate for 20 hours; the coarse rice is washed with pure water for five times to prevent the pollution of the microorganisms during the period of 20 hours; the coarse rice is re-washed with pure water for three times after the germination is ended; and then the coarse rice is swelled, smashed, screened and packed. The rice powder can also provide necessary trace elements of the human body such as selenium, calcium, iron, zinc and the like on the premise of improving the nutrient substances such as gamma-propalanine and the like.

The invention discloses a treatment agent for printing and dyeing wastewater. The treatment agent is prepared from the following materials in parts by weight: 21 parts of menthone, 10 parts of silicon dioxide, 20 parts of zeolite minerals, 5 parts of powdered activated carbon, 5 parts of sodium silicate, 12 parts of diatomite, 5 parts of potassium persulfate, 5 parts of dibenzoyl peroxide, 15 parts of reductase peroxide, 12 parts of basic aluminum chloride, 8 parts of polyacrylamide, 30 parts of polyferric sulfate, 18 parts of polyaluminium chloride, 2 parts of polysorbate, 20 parts of polyimide, 1 part of polyethylene glycol, 8 parts of polyethyleneimine, 5 parts of thiocarbamate, 8 parts of zinc sulfate, 18 parts of expanded graphite, 5 parts of strong base, 5 parts of hydroxypropyl methyl cellulose sodium, 18 parts of calcium hydroxide, 85 parts of polyacrylamide, 20 parts of aluminum oxide and 5 parts of dodecyl diethylenetriamine.

The invention relates to disease-resistant macroelement liquid water-soluble fertilizer and a preparation method thereof. In the liquid water-soluble fertilizer, the urea content is 300 to 310g/L; the content of phosphorus-containing polymers is 333 to 343 g/L; the content of monopotassium phosphate is 127 to 137g/L; the content of boracic acid is 23 to 37g/L; the content of iron sulfate heptahydrate is 180 to 220g/L; the content of water-soluble chitosan is 3 to 8g/L; the content of phytase is 1 to 3g/L; the content of antiflocculating agents is 2 to 4g/L. During the preparation, firstly, iron and the phosphorus-containing polymers are chelated; macroelements and trace elements are sequentially dissolved and are then mixed with a solution containing additives. The additives such as the water-soluble chitosan, the phytase and the antiflocculating agents are added into the water-soluble fertilizer, so that the obtained macroelement liquid water-soluble fertilizer has the advantages of high nutrition content and full water solubility and also has the characteristics of resisting flocculating and improving crop disease resistant capability.

The invention relates to a demulsification purifying agent and is characterized in that the purifying agent is composed by the components and proportions: 2-68 percent of sewage purifier, 2-37 percent of polymeric ferric sulfate, 5-45 percent of aluminum polychlorid, 6-57 percent of calcium chloride, and 19-47 percent of ferric chloride. The preparation steps are that: sewage purifier, polymeric ferric sulfate and aluminum polychlorid are dumped into a mixer and then calcium chloride and last water of 50 percent of the four raw materials are added; the mixture is stirred fully at a rate of 60 rpm for two to three hours to ensure the solid components are completely dissolved; the ferric chloride is added and the mixture is mixed continuously but at a rate of 50-80 rpm for half an hour to one hour; the mixture is filtered and packed into package buckles after the mixer is stopped for six to ten hours. The invention has excellent sewage treatment effect with low investment.

The invention relates to a cordyceps liquid spawn culture medium, which is mixed and prepared by 30 to 100 gram glucose, 3 to 10 gram peptone, 0.5 to 1.1 gram multiplex vitamin, 5 to 12 gram multiplex mineral matters and 961.5 to 876.9 gram water, wherein, the vitamin mainly comprises VA, VB1, VB2, VB5, VB12, VC and VE which are prepared according to the ratio of 1 to 1; the mineral matters mainly comprise calcium hypochlorite, green vitriol, zinc selenides, sodium chlorides, potassium nitrates, magnesium sulphates, manganese sulphates, ammonia sulphates and potassium iodides which are prepared according to the ratio of 1 to 1 or are mixed and prepared by 2 gram calcium hypochlorite, 0.2 gram green vitriol, 0.2 gram zinc selenides, 0.5 to 1 gram sodium chlorides, 3 gram potassium nitrates, 3 gram magnesium sulphates, 0.2 gram manganese sulphates, 0.3 gram potassium iodides and 2 gram ammonia sulphates. The invention concentrates effective nutrition and medicinal compositions in cordyceps, and reduces the dosage but does not reduce the effect. The cordyceps liquid spawn culture medium can save 90 percent labor and save 90 percent energy, is environment-friendly without refuses; moreover, the seed production technology is simplified, which contributes to the popularity and promotion of cordyceps seed production and culture technologies and is favorable for the development of cordyceps project and simultaneously avoids large-area pollution loss due to various reasons of liquid spawn.

The invention discloses a special biological fertilizer for camphor tree etiolation treatment, and an application method thereof. The special biological fertilizer comprises 70-79wt% of a base fertilizer, 0.03-0.08wt% of chelated iron, 10-20wt% of an iron sulfate fertilizer, 3-8wt% of urea and 3-8wt% of a calcium magnesium phosphate fertilizer. The fertilizer has an obvious treatment effect on etiolation of camphor tree, and reduces the yellowed leaf rate of camphor to below 5% from original about 90%.