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140 results about "Zinc sulphate heptahydrate" patented technology

Zinc Sulfate Heptahydrate is a moderately water and acid soluble Zinc source for uses compatible with sulfates. Sulfate compounds are salts or esters of sulfuric acid formed by replacing one or both of the hydrogens with a metal.

Composite corrosion inhibition antisludging agent for ultralow rigidity circulation cooling water and preparation method thereof

The invention provides a composite corrosion inhibition antisludging agent for ultralow rigidity circulation cooling water. The composite corrosion inhibition antisludging agent comprises the following raw materials in parts by weight: 5-15 parts of amino trimethylene phosphonic acid, 5-15 parts of hydroxyethylidene diphosphonic acid, 1-15 parts of diethylenetriamine pentamethylene phosphonic acid, 5-15 parts of hydrolytic polymaleic anhydride, 2-15 parts of terpolymer, 2-20 parts of heptahydrate, 0.1-2 parts of hydroxy benzotriazole and 3-79.9 parts of pure water. The hydroxy benzotriazole is added after the amino trimethylene phosphonic acid, the hydroxyethylidene diphosphonic acid, the diethylenetriamine pentamethylene phosphonic acid, the hydrolytic polymaleic anhydride and the terpolymer are stirred and mixed; and the composite corrosion inhibition antisludging agent is obtained by adding the water and the heptahydrate until the hydroxy benzotriazole is entirely dissolved. The hydrolytic polymaleic anhydride and the terpolymer used by the invention have a good diffusion effect, and can effectively prevent carbonates, phosphates and the like from being deposited and scaled. Meanwhile, the hydrolytic polymaleic anhydride and the terpolymer belong to a non-phosphate monomer, so that the agent phosphate content is reduced. Therefore, the composite corrosion inhibition antisludging agent is beneficial to environmental protection.
Owner:SHANDONG TAIHE WATER TREATMENT TECH CO LTD

Clear liquid complex fertilizer special for high concentration drip irrigation and method of preparing the same

The invention relates to a high-concentration clear liquid compound fertilizer special for drop irrigation and a production method thereof. The fertilizer is prepared by dissolving urea, liquid phosphoric acid and potassium chloride, green vitriol, zinc vitriol, boric acid and fulvic acid in water with different temperatures in two steps and then mixing the compositions. The liquid compound fertilizer has the advantages that: the liquid compound fertilizer has good physical characteristics, can not deposit for long-term storage, has full nutrients to fully supplement various elements required by crops, can accelerate the growth of a crop root system and prevent precipitation reaction from blocking drop holes, in particular, the liquid compound fertilizer can obviously activate inorganic phosphorus pool of soil and reduce pH value of limy soil so as to greatly improve utilization efficiency of nitrogen and phosphorus nutrient resources. The clear liquid compound fertilizer can be separately applied for basal application and dressing, also can be used as a foliar fertilizer after diluted, and also can be mixed with other fertilizers for application, in particular has wide application respect in drop irrigation areas with the limy soil.
Owner:沃达农业科技股份有限公司

Water culture nutrient solution of blueberry and preparation method thereof

The invention belongs to the technical field of fruit tree culture, in particular to a water culture nutrient solution prescription of a blueberry and a preparation method thereof. In the technology, the water culture nutrient solution of a blueberry comprises the following elements: 95-110mg/L of N, 10-15mg/L of P, 125-135mg/L of K, 80-90mg/L of Ca, 20-28mg/L of Mg, 4-6mg/L of Fe, 0.3-0.6mg/L of B, 0.4-0.6mg/L of Mn, 0.04-0.06mg/L of Zn, 0.02-0.04mg/L of Cu and 0.002-0.004mg/L of Mo. A pH value of the water culture nutrient solution is 4.8 to 5.5. The preparation method of the nutrient solution comprises the following steps of: weighing EDTA (Ethylene Diamine Tetraacetic Acid) ferrisodium, boric acid, manganese sulfate tetrahydrate, zinc sulphate heptahydrate, copper sulfate pentahydrate and ammonium molybdate tetrahydrate for dissolving into water and blending into 100 times of trace element mother liquor for storage and later use; additionally weighing calcium nitrate tetrahydrate, potassium nitrate, monopotassium phosphate and magnesium sulfate heptahydrate for dissolving into water; absorbing the trace element mother liquor into the solution according to the consumption; adding water for quantifying to needed volume; uniformly stirring; and adjusting the pH value of the solution to be 4.8 to 5.5 with 0.1mg/L dilute H2SO4 or dilute NaOH. By utilizing the technology, the water culture aims of growing a plurality of aquatic roots in 20 days after a blueberry seedling is transplanted and having the plant survival rate of more than 90 percent can be achieved.
Owner:JINLING INST OF TECH

Method of comprehensively recycling valuable metals in plating sludge

The invention belongs to the technical field of plating sludge treatment and discloses a method of comprehensively recycling valuable metals in plating sludge. The method comprises: extracting value metals from plating sludge by leaching, and isolating acid leaching residue and acid leaching liquid; adding iron powder, stirring, and filtering to isolate copper powder and a mother liquid; adding hydrogen peroxide and sodium carbonate solution, adding a composite flocculating agent so that iron ions in the solution form iron hydroxide precipitate and chromium ions form chromium hydroxide precipitate, wherein the precipitates settle fast, and isolating ferrochromium slag and a mother liquid containing zinc and nickel; using P507 extracting agent to extract zinc in the mother liquid containingzinc and nickel, back-extracting an organic phase via sulfuric acid to obtain zinc sulfate solution, and crystallizing to obtain zinc sulfate septahydrate; adding the sodium hydroxide solution into nickel raffinate, filtering to obtain nickel hydroxide precipitate, adjusting mother liquid pH to 7 for the filtrate through sulfuric acid, and crystallizing to isolate sodium sulfate decahydrate. Precipitate washing liquids herein are cyclically used, emission of wastewater is decreased, and significant economic and social benefits are created.
Owner:JIANGXI UNIV OF SCI & TECH

Non-phosphorus corrosion and scale inhibitor

The invention discloses a non-phosphorus corrosion and scale inhibitor. The non-phosphorus corrosion and scale inhibitor is prepared from the following components in percentage by weight: 8 to 12 percent of hydrolytic polymaleic anhydride, 10 to 15 percent of polyepoxysuccinic acid, 15 to 20 percent of acrylic acid-2-acrylamido-2-methylpropanesulfonic acid multipolymer, 10 to 15 percent of carboxylic acid-sulfonic acid-acrylate terpolymer, 8 to 12 percent of acrylic acid-hydroxypropyl acrylate copolymer, 4 to 8 percent of zinc sulphate heptahydrate and the balance of deionized water. The invention further discloses a preparation method of the corrosion and scale inhibitor. The preparation method comprises the following steps: weighing the components according to the formula; adding the components into a stirrer in sequence; stirring at normal temperature and under normal pressure to obtain the corrosion and scale inhibitor. The corrosion and scale inhibitor disclosed by the invention has the advantages of freeness from phosphorus, adoption of safe and environment-friendly components, simple production process, high scale-inhibiting efficiency, high corrosion-inhibiting performance, prevention of eutrophication of a water body caused by discharge of phosphorus, and very high compatibility; the adhesion of microorganisms to equipment can be reduced effectively, and the corrosionand and scale inhibiting performance can be enhanced greatly.
Owner:新疆水处理工程技术研究中心有限公司

Efficient fruits nutrition physiology hyperchromic fertilizer and preparation thereof

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.
Owner:翟丙年

Method and system for collaborative smelting and recycling valuable metal from waste circuit board, scrap copper and copper-containing waste residue

The embodiment of the invention discloses a method and system for collaborative smelting and recycling valuable metal from a waste circuit board, scrap copper and copper-containing waste residue. Themethod comprises the steps that the waste circuit board, the scrap copper and the copper-containing waste residue are mixed and are subject to high-temperature smelting to obtain a metal alloy and slag; an anode plate is made of a metal alloy, and through electrolysis, a cathode copper product is obtained; copper anode mud and slag are combined, and through sulfuric acid leaching, leaching liquidis obtained; the leaching liquid is subject to metal replacement, nickel tin powder is separated out, and through alloying smelting, and a nickel and tin alloy product is obtained; filter liquid replacement is carried out, through alkali deposition, ferric hydroxide is separated out, and through burning, a ferric oxide product is obtained; liquid obtained after sedimentation is subject to evaporative crystallization, and a heptahydrate product is obtained. According to the method, the fire method and wet method combined collaborative smelting manner is adopted, the treatment problem of the waste circuit board, the scrap copper and the copper-containing waste residue is solved, the waste source is wide, the cost is low, the obtained product is good in quality, the recycling rate is high, the environment friendly aim reaches the standard, no secondary pollution exists, and a certain economic benefit and the industrial significance are achieved.
Owner:CHINA GEZHOUBA GRP LVYUAN TECH CO LTD

Preparation method of quality control serum for quality control of centrifugal microfluidic chips

The invention discloses a preparation method of quality control serum for quality control of centrifugal microfluidic chips. The method comprises the following steps: adding 0.6 to 1.0 percent of cholesteryl sodium sulfate into bovine plasma, and adding 0.02 to 0.06 percent of monopotassium phosphate; sequentially adding 0.04 to 0. 08 percent of ammonium ferric sulfate dodecahydrate, 0.5 to 0.9 percent of calcium chloride, 0.2 to 0.6 percent of bitter salt, 0.6 to 1 percent of urea, 9 to 13 percent of sodium chloride, 0.01 to 0.03 percent of zinc vitriol, 0.01 to 0.03 percent of chalcanthite,0.06 to 0.2 percent of glycocholic acid, 2 to 4 percent of glucose, 0.03 to 0.06 percent of creatinine, 0.08 to 0.2 percent of uric acid, and 0.07 to 0.11 percent of triolein into water; uniformly mixing obtained solution; adding glycol, saccharose and triton X-100, and uniformly mixing; sequentially adding albumin bovine serum, sodium azide, alanine aminotransferase, aspartic transaminase, alkaline phosphatase, lipase and creatine kinase, uniformly mixing, and performing freeze drying. The method has the advantages that the source of the raw materials is sufficient, the raw materials are easyto get, possible matrix effect is furthest avoided, and precipitation of the raw materials is prevented.
Owner:NINGBO MEIKANG BAOSHENG BIOMEDICAL ENG

Sustained-release organic fertilizer special for peanuts and preparation method thereof

The invention provides a sustained-release organic fertilizer special for peanuts and a preparation method thereof. The sustained-release organic fertilizer special for the peanuts consists of lignin, diatomite, attapulgite, humic acid, calcium-based silicate mineral, a nitrogen fertilizer, a phosphate fertilizer, a potassic fertilizer, trace elements and water, wherein the trace elements consist of agricultural rare-earth, borax, ammonium molybdate, manganese sulfate and zinc sulphate heptahydrate; the sustained-release organic fertilizer special for the peanuts is prepared according to the preparation method of dissolving the components, stirring, mixing and granulating. The sustained-release organic fertilizer special for the peanuts has a reasonable formula; the utilization rate of the organic fertilizer as well as the yield and the oil yield of the peanuts is greatly improved by the synergistic effect of the components; meanwhile, the problems of eutrophication or nutrient deficiency symptoms of crops are solved; the taste of the peanuts is greatly improved; meanwhile, the problem of water body pollution caused by fertilizer loss is prevented effectively; the soil is improved; resources are saved; the cost is reduced; the preparation method is simple and meets the requirements on large-scale industrial production.
Owner:金华万里神农农业科技有限公司

Maize fulvic acid polyelement composite liquid base fertilizer taking concentrated biogas slurry as base solution

The invention relates to a maize fulvic acid polyelement composite liquid base fertilizer taking concentrated biogas slurry as a base solution, which is prepared from the following raw materials in portion by weight: 195 to 200 portions of ammonium polyphosphate, 110 to 115 portions of urea, 280 to 285 portions of potassium chloride, 5 to 6 portions of borax, 10 to 11 portions of heptahydrate zinc sulphate, 10 to 12 portions of suspending agent, 345 to 321 portions of the concentrated biogas slurry and 45 to 50 portions of fulvic acid. The liquid base fertilizer contains 352 to 368 g/L of macroelement, 53 to 57 g/L of the fulvic acid, and 11 to 21 g/L of water-insoluble matters; and the pH value of the fertilizer subjected to dilution by 250 times is 6.2 to 6.5. The production of the fertilizer comprises the following steps: comprehensive analysis of soil agricultural-chemistry characteristics, maize fertilization experiment, calculation of fertilizer proportion, selection of raw materials, material preparation, and mixing and preparation; and water is used for diluting the fertilizer by 200 times, and hole application is performed on the diluted fertilizer when hole sowing is performed on maize seeds at the same time, or the fertilizer is applied at a dosage of 65 kilogram/mu when water is irrigated to field. The fertilizer has no secondary pollution, and has reasonable and even application; and the invention provides a base fertilizer containing the macroelement, microelement and fulvic acid active substances to promote the growth and production increase of maize.
Owner:ZHEJIANG FORESTRY UNIVERSITY

Blueberry organic fertilizer utilizing waste and preparation method thereof

The invention discloses blueberry organic fertilizer utilizing waste and a preparation method thereof. The blueberry organic fertilizer is prepared from 45-55 parts by weight of wheat straw, 24-36 parts by weight of biogas residue, 20-30 parts by weight of golden mushroom slag, 16-24 parts by weight of bean hull powder, 12-18 parts by weight of chestnut shell powder, 9-13 parts by weight of humic acid, 8-10 parts by weight of phosphogypsum, 6-8 parts by weight of red bed rock, 5-6 parts by weight of ferrous sulfate, 4-5 parts by weight of monopotassium phosphate, 3-5 parts by weight of zinc sulphate heptahydrate, 3-5 parts by weight of copper sulfate pentahydrate, 3-4 parts by weight of monoammonium phosphate, 2-3 parts by weight of JT composite bacteria, 9-11 parts by weight of a soil conditioner and a proper amount of water. The blueberry organic fertilizer is prepared from waste such as wheat straw, biogas residue and golden mushroom slag as main raw materials so that the blueberry organic fertilizer provides a virtuous cycle use approach for solving the problem that the agricultural and industrial production waste pollutes the environment. Through use of wheat straw, fungus slag and phosphogypsum as fertilizer additives, the high-quality nuisance-free organic fertilizer can be provided. The blueberry organic fertilizer is conducive to environmental protection, solves waste problems for production enterprises, realizes waste recycling and realizes harmonious coexistence of human and environment.
Owner:ANHUI RIRICHUN AGRI DEV

Soil conditioner for repairing soda type saline-alkali soil as well as preparation method and use method thereof

The invention belongs to the technical field of soil improvement, and particularly relates to a soil conditioner for repairing soda type saline-alkali soil as well as a preparation method and a use method thereof. The soil conditioner for repairing the soda type saline-alkali soil is prepared from furfural residues, composted organic fertilizer, an organic material, brown sugar, zeolite powder, lignite powder, calcium chloride, aluminum sulfate, potassium sulfate, ardealite, monoammonium phosphate, heptahydrate and cation exchange resin. Organic improvement and inorganic improvement are efficiently combined, so that the physical and chemical properties of the soda type saline-alkali soil are improved, the PH value and the salt content are reduced, the harm of alkali-causing ions is relieved, the soil substitution amount and the soil buffer property are improved, and the soil improvement and alkali reduction effects are good; the content of organic matters in the soil is increased to improve the physical property of the soil, increase the porosity of the soil, prevent and treat hardening of the soil and improve the breathability of the soil; meanwhile, the soil fertility of the sodatype saline-alkali soil is improved; the soil conditioner can be applied to soil of both a dry farmland and a paddy field and cooperates with conventional fertilization to promote growth of plants and increase the yield of crops.
Owner:黑龙江省安心土壤肥料研究院

Method for preparing industrial ferrous sulfate and zinc sulfate by using pyrite cinders

The invention provides a method for preparing industrial ferrous sulfate and zinc sulfate by using pyrite cinders. The method comprises the following steps of: fully reacting the pyrite cinders with excessive sulfuric acid, filtering to obtain a mixed solution I containing sulfuric acid, ferrous sulfuric, cuprous sulfate and zinc sulfate, and a lead-containing filter cake; adding an appropriate amount of ferrous hydroxide into the mixed solution I for neutralizing the excessive sulfuric acid; distilling the solution under a reduced pressure into a saturated ferrous sulfate solution, cooling the saturated ferrous sulfate solution to 25 DEG C until the ferrous sulfate is supersaturated, separating a large quantity of crystals out, and filtering to obtain a ferrous sulfate filter cake and a mixed solution II containing cuprous sulfate pentahydrate, zinc sulphate heptahydrate and a small amount of ferrous sulfates; washing, drying and smashing the ferrous sulfate filter cake to obtain a ferrous sulfate product; heating the mixed solution II to 30-40 DEG C, precipitating zinc sulfate in a form of zinc sulfate heptahydrate crystals, and filtering to obtain zinc sulfate heptahydrate crystals and a mixed solution III containing copper sulfate and ferrous sulfate; and washing, drying and smashing the zinc sulfate heptahydrate crystals to obtain a zinc sulfate crystal product.
Owner:张胜勇
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