13 results about "Copper sulfate" patented technology

The invention provides a soil bio-activator for ginseng continuous cropping and belongs to the field of modernization of Chinese traditional medicine. The soil bio-activator for ginseng continuous cropping can be used for solving the problems of serious ginseng continuous cropping diseases, low yield and poor quality caused by deterioration of the physicochemical and biological characters of old ginseng-grown land soil. The soil bio-activator for ginseng continuous cropping is prepared from 2.0%-8.0% of bacillus subtilis, 2.0%-8.0% of actinomycetes, 5.0%-20.0% of xylanase, 5.0%-20.0% of cellulase, 10.0%-20.0% of urease, 1.0%-4.0% of potassium dihydrogen phosphate, 0.1%-0.5% of ferrous sulfate, 0.1%-0.4% of boric acid, 0.1%-0.5% of manganese sulfate, 0.05%-0.2% of copper sulfate, 0.1%-0.4% of zinc sulfate, 0.05%-0.2% of ammonium molybdate and the balance of organic materials through mixing and compositing. The soil bio-activator for ginseng continuous cropping is used for improving the soil for ginseng continuous cropping in ginseng growing.

The invention discloses a method for separating and extracting all metal components from waste printed circuit boards through wet metallurgy. The method specifically includes the following steps that (1) powder of the printed circuit boards containing electronic elements is obtained; (2) active metal in metal concentrate is separated through a mixed solution containing dilute sulphuric acid and copper sulfate, and after solid-liquid separation, the liquid phase is used for recovering the active metal, and precious metal is further extracted from a solid part; (3) the solid part obtained in the step (2) is added into a cultivation system for inoculating strains, and leaching of copper through microorganisms is carried out; (4) after solid-liquid separation, Cu in the liquid phase is recovered, and precious metal such as Au and Ag is further extracted from solid residues. By means of the method, heavy metal ions are prevented from restraining strain activity and bio-leaching efficiency, a microorganism reaction can be carried out continuously and efficiently, and therefore the whole technological process is shortened, cost is reduced, and the microorganism leaching efficiency is improved.

The invention discloses a snail control method for citrus. The method includes the following steps that 1, pruning is reasonably conducted, hanging branches making contact with the ground are cut off,accumulated water is removed, branch thinning is properly conducted, and ventilation and light transmission are conducted; 2, the trunks of the citrus are coated to be white or lime is spread on theground before the citrus is harmed; 3, chickens and ducks are fed outside for eating snails, or people manually remove the snails; 4, a pesticide is used for prevention, wherein 5-10% copper sulfate or 1-5% salt solution is used for spraying tree disks and trunks in the morning or in the evening, 0.5-0.6 kg of 6% tetramethylaldehyde granules and 10-15 kg of dry fine soil are mixed and then uniformly spread in each mu of a field or around trees, 6% tetramethylaldehyde particles are adhered to tape and then the tape wraps the portions, 20 cm away from the ground, of the trees. The method can effectively prevent the snails, leaves and fruits of the citrus do not suffer from damage, the appearance of the fruits is ensured, the selling value of the citrus is thus improved, and loss is reduced.

The invention discloses an efficient total-nutrient chelate fertilizer and a preparation method of the efficient total-nutrient chelate fertilizer, and belongs to the technical field of crop fertilizers. The efficient total-nutrient chelate fertilizer is prepared from the following raw materials by weight: 650-750 parts of urea, 800-100 parts of monopotassium phosphate, 80-120 parts of potassium humate, 75-85 parts of calcium chloride, 55-65 parts of magnesium sulfate, 18-22 parts of ferrous sulfate, 20-25 parts of manganese sulfate, 20-25 parts of copper sulfate, 20-25 parts of zinc sulfate,2-4 parts of ammonium molybdate, 40-60 parts of citric acid, 50-60 parts of tartaric acid, 90-110 parts of EDTA, 35-45 parts of boric acid, 15-20 parts of lanthanum nitrate, 25-30 parts of cerous nitrate, and 30-40 parts of a surfactant. The monopotassium phosphate, the compound trace element and the rare earth element chelate are compounded, the trace element and the rare earth element exist in the non-precipitate inorganic form, and the defect that the traditional micro element fertilizer cannot be compounded with the phosphate is overcome.

The invention discloses a Chinese yam preservative, a preparation method of the preservative and a normal temperature fresh-keeping method for Chinese yams. The Chinese yam preservative is sticky mudprepared from deep soil, a copper sulfate solution and a limewater solution in a weight ratio of 10:(0.5-2):(1.5-3). The normal temperature fresh-keeping method for Chinese yams comprises the following steps: removing residual parts of the Chinese yams to be preserved, slitting the Chinese yams, conducting sealing with the Chinese yam preservative immediately, uniformly adhering a layer of the sticky mud with a thickness of 1-3mm to the incision parts of the Chinese yams, boxing the Chinese yams, uniformly spraying the limewater solution on each layer of the Chinese yams during the boxing process, folding light-tight packaging bags in half, placing the bags in a ventilated place for natural cooling, conducting warehousing as air temperature falls to 3-5 DEG C, and conducting storing at normal temperature. The Chinese yam incision preservative does not damage the taste and nutritional components of the Chinese yams, and the storage method for the Chinese yams has the advantages of simple and convenient operation, low cost, easy operation, long storage time and good Chinese yam preservation effect.

The invention discloses an aluminum-magnesium alloy electroplating solution which is composed of 20-35 g/L nickel sulfate, 15-25 g/L chromic sulfate, 15-35 g/L copper sulfate, 1-5 g/L cobalt acetate, 50-80 g/L tetrahydrothiazolyl thione, 10-20 g/L citric acid, 1-5 g/L ascorbic acid, 10-40 g/L sodium oxalate, 40-50 g/L sodium borate, 20-35 g/L potassium citrate and the balance of deionized water. The aluminum-magnesium alloy electroplating solution can solve the problem of high corrosion tendency of the aluminum-magnesium alloy in the electroplating construction, and can enhance the binding force of the coating.

The invention discloses a method for preparing a halogen-free low-temperature fire-retardant fiber, and relates to a method for preparing a self-assembled low-temperature fire-retardant fiber at a room temperature. The invention aims at solving the technical problem that the fire-retardant temperature of the current fire retardant is relatively high. The method comprises the following steps: 1, dissolving titanyl sulfate into water containing sulfuric acid; 2, respectively collocating a copper sulfate solution and a calcium nitrate solution; 3, adding the copper sulfate solution into a titanyl sulfate mixed solution for uniformly stirring, and then adding the calcium nitrate solution for uniformly stirring; 4, standing; 5, filtering; 6, washing; 7 drying. The decomposition temperature of the sulfur-free halogen-free fire-retardant fiber is near 150 DEG C, and the enthalpy value is high. When the sulfur-free halogen-free fire-retardant fiber is used on cotton fabrics, the limiting oxygen index is increased by 30 percent, and the amount of release of smoke is reduced by more than 40 percent. The method belongs to the filed of preparation of fire-retardant fibers.

The invention discloses environment-friendly impermeable composite bentonite, and belongs to the field of green chemistry and environmental protection. The composite bentonite is prepared from the following components in parts by mass: 1000-1200 parts of bentonite, 90-120 parts of sodium carbonate, 300-500 parts of a biodegradable polyester material, 50-100 parts of a cross-linking agent, 30-50 parts of a drying agent and 30-50 parts of a preservative; wherein the bentonite is granular bentonite; the biodegradable polyester material is one of poly (trimethylene carbonate), polycaprolactone andpolyvalerolactone; the cross-linking agent is N-hydroxymethyl acrylamide; the drying agent is at least one of bamboo charcoal and quartz sand; and the preservative is copper sulfate. By adding the biodegradable material and the cross-linking agent, the composite bentonite has good anti-seepage performance, can be biologically degraded, and has a wind indicator effect on the development of green chemistry.

The invention belongs to the technical field of hydroponic planting, and particularly relates to a hydroponic planting nutrient solution suitable for a balcony and a preparation method and an application of the hydroponic planting nutrient solution. The hydroponic planting nutrient solution comprises a solution A and a solution B, wherein the solution A comprises calcium nitrate tetrahydrate, potassium nitrate, EDTA, EDDHA and water; and the solution B comprises potassium nitrate, magnesium nitrate, potassium sulfate, potassium dihydrogen phosphate, ammonium dihydrogen phosphate, manganese sulfate tetrahydrate, zinc sulfate heptahydrate, copper sulfate pentahydrate, boric acid, ammonium molybdate tetrahydrate and water. According to the nutrient solution, the pH value of the nutrient solution can be stabilized between 5.5 and 6.5 in the hydroponic planting process under the condition that the element content and the proportional relation in all the nutrient solutions are maintained, and the nutrient solution is suitable for growth and development of crops. According to the nutrient solution, the pH value does not need to be intervened through acid liquor and alkali liquor, the workload of planting personnel is relieved, and the problem that the acid liquor and the alkali liquor stored at home are not safe is solved.