48 results about "Phosphorus calcium" patented technology

The invention discloses a method for producing a lithium-rich pure solution from a waste lithium ion battery positive electrode active material, belongs to the technical field of waste lithium ion battery material recycling, and particularly provides a method for producing a lithium-rich pure solution from a reduced sulfuric acid leaching solution of a positive electrode active material. A high-sodium and low-lithium lithium sulfate solution obtained after the positive electrode active material is subjected to reduction leaching and leaching solution purification is subjected to lithium deposition with phosphoric acid or phosphate to obtain lithium-containing phosphate enrichment; lithium is selectively leached out from the lithium-containing phosphate enrichment by using less than a theoretically required amount of a calcium chloride solution to obtain the lithium-rich pure solution and lithium-containing phosphorus-calcium residues; and the lithium-containing pure solution is used for producing a product such as battery-grade lithium carbonate or lithium chloride through a conventional method such as deposition or crystallization, and a solution obtained after the lithium-containing phosphorus-calcium residues are subjected to sulfuric acid leaching and neutralization returns to the lithium deposition step for cyclic use. According to the method, the lithium-rich pure solution can be directly produced from the high-sodium and low-lithium solution without pre-concentration, the energy consumption and the cost are low, and the lithium recycling rate is high.

The invention discloses a breeding method of fragrant nourishing lambs, and belongs to the technical field of animal husbandry. According to the breeding method, a female small tailed Han sheep is hybridized with a male Hu sheep to obtain a bred female sheep; then the bred female sheep is hybridized with a male Dorper; in the cultivation process, no feed additives are fed to the sheep; by virtue of natural resources, the sheep are stocked on the grass or woods to allow the sheep to eat grass, leaves and stem leaves of onion, ginger and garlic byproducts; and the sheep are fed with penetrable, fragrant and nourishing traditional Chinese herbs. The feed formula for the lambs is as follows based on weight percentage: 25-40% of corn, 5-15% of black wheat, 15-25% of millet straw, 10-20% of bean pulp, 1-3% of bran, 2-4% of pine needle powder, 2-4% of wormwood powder, 2-5% of radix astragali, 1-3% of green Chinese onion, 1-3% of yeast powder, 1-3% of fennel, 1-3% of motherwort, 0.5-1.5% of medical stone, 0.5-1.5% of phosphorus calcium powder, 0.5-1.5% of ginger, 0.1-0.5% of clove, 0.1-0.5% of round cardamom, and 0.3-0.8% of salt. The substances are weighed according to the proportion and mixed, crushed into feed with grain size smaller than 5 mm. Averagely, each sheep is fed with 0.5 kg of feed every day.

The invention discloses a saline-alkali soil conditioner which is prepared from the following components in parts by weight: 30-70 parts of enzyme preparation filter dregs, 10-60 parts of bone meal and 1-5 parts of a microbial inoculum, wherein the microbial inoculum is one or a combination of more than one of bacillus subtilis powder, bacillus mucilaginosus powder and bacillus megatherium powder. According to the saline-alkali soil conditioner disclosed by the invention, the enzyme preparation filter dregs are used for absorbing microbial preparations and are compounded of the bone meal which is rich in biological phosphorus and calcium. The enzyme preparation filter dregs have a relatively good inhibiting effect on pathogenic bacteria of crops, can be used for effectively preventing soil-borne diseases and meanwhile, are capable of promoting proliferation of beneficial bacteria such as nitrogen-fixing bacteria, cellulose decomposing bacteria, lactic acid bacteria and actinomycetes and inhibiting growth of harmful bacteria such as mould and filamentous bacteria. The bone meal is used for adjusting alkaline ions in soil and the micro-ecological environment of soil is improved by using mixed microbial preparations such as phosphorus and potassium solubilizing preparations and bacillus subtilis. By using industrial and agricultural wastes, the production cost is lowered and the product quality is improved. The saline-alkali soil conditioner has multiple functions and remarkable effect.

The invention relates to a preparation method of a chicken feed. The chicken feed comprises the following components in percentage by weight: 55-70 percent of bean cake, 3-9 percent of corn, 10-18 percent of beanstalk powder, 5-8 percent of red bean powder, 2-6 percent of cotton cake, 3-5 percent of fish meal, 1-1.8 percent of mung bean flour, 0.2-0.5 percent of salt, 0.5-1 percent of additive A and additive agent B and 1 percent of phosphorus-calcium. The preparation method comprises the following steps of: taking the bean cake, the corns, the beanstalk powder, the red bean powder, cotton cakes, the fish meal, the mung bean flour, the salt, the additive agents A and B and the phosphorus-calcium in proportion and pouring the components into a feed stirrer to stir for 30 minutes; then taking out the components and putting the components into a pulverizer to pulverize the components into particles; and bagging and sealing.

The invention discloses a method for detecting phosphorus recirculation in the growing period of corns. The recirculation flux of phosphorus is calculated according to the phosphorus and calcium accumulation speed in the specific time period and the phosphorus calcium ratio of xylem juice. By the method, the phosphorus content of the corn plants can be monitored dynamically in real time.

The invention provides piglet feed and a preparation method thereof and relates to the technical field of pig feed. The piglet feed comprises, by weight, 50-60 parts of grain paste, 8-10 parts of mulberry leaf, 8-10 parts of shrimp meal, 6-8 parts of black sesame, 3-5 parts of phosphorus calcium, 2-4 parts of insect meal, 1-3 parts of calcium hydrophosphate, 5-7 parts of salt, 1-3 parts of lysine, 1-3 parts of threonine, 1-3 parts of methionine, 1-3 parts of tryptophan, 1-3 parts of glucose oxidase, 1-3 parts of cellulase, 1-3 parts of lipase and 3-5 parts of multidimensional mineral. Compared with common feed, the piglet feed has the advantages that the piglet feed containing effective auxiliaries and trace elements is capable of satisfying the normal nutrition requirements of piglets, preventing and treating diseases, increasing immunity and promoting growth, free of toxic and side effects, free of environment pollution, capable of increasing body resistance, fast to become effective and cheap.

The invention relates to a preparation method of a hydroxyethyl chitosan nano composite bone support material. The preparation method comprises the following steps: obtaining phosphorus calcium powderin a precipitating method, roasting, and obtaining hydroxyapatite/beta-tricalcium phosphate two-phase phosphorus calcium nano powder, performing the hydroxyethylation on chitosan, preparing hydroxyethyl chitosan, finally dissolving the hydroxyethyl chitosan in a 1 percent acetum solution, mixing and stirring the hydroxyethyl chitosan, gelatin and two-phase phosphorus calcium nano powder accordingto a mass ratio of (1 to 4) to 1 to (0.5 to 4), degassing, uniformly dispersing, circularly freezing and thawing the solution, and finally drying, thus obtaining the hydroxyethyl chitosan nano composite bone support material. The preparation method is simple in preparation process, easy in operation, capable of realizing the batched preparation, lower in cost, and pollution-free; and by adoptinga ternary material system, a prepared bone support has an appropriate degradation rate, the cell compatibility of the bone support is improved, the biological activity is better, and the cell can be better adhered and proliferated.

The invention provides a formula for a chicken feed. The formula comprises corn, wheat, rice bran, fish meal, soybean meal, rapeseed meal, cottonseed meal, wheat bran, stone flour, phosphorus-calcium, phosphatide, cooking oil, methionine, lysine, premix, crude protein, methionine, methionine-cystine, lysine, calcium and available phosphorus. The feed provided by the invention enables cost to be saved, is directed at the variety characteristics of Jinghong No. 1 laying hens, accords with physiological characteristics of Jinghong No. 1 laying hens, has comprehensive and balanced nutrients and fully meets demands of laying hens for lecithin and linolenic acid.

The invention discloses a method for preparing a phosphorus and magnesium doped polyaluminum chloride flocculant by using secondary aluminum ash, which comprises the following steps: mixing sodium phosphate, calcium oxide and aluminum ash to obtain a phosphorus and calcium doped aluminum ash mixture; mixing a magnesium chloride aqueous solution and the phosphorus-calcium-doped aluminum ash mixture, and sealing and stirring to obtain fluorine-ammonia fixing mixed slurry; mixing a hydrochloric acid aqueous solution with the fluorine-fixing ammonia mixed slurry, sealing, heating and stirring to obtain acid leaching mixed slurry; and adding calcium aluminate into the acid leaching mixed slurry, mixing, stirring and aging, and drying and grinding in a roller to obtain the phosphorus and magnesium doped polyaluminum chloride flocculant. According to the phosphorus and magnesium doped polyaluminum chloride flocculating agent and the application thereof, efficient utilization of the secondary aluminum ash can be achieved, additional denitrification and desalination steps are not needed in the aluminum ash treatment process, and full utilization of all components in the aluminum ash can be achieved. Compared with the traditional polyaluminum chloride, the phosphorus and magnesium doped polyaluminum chloride flocculant prepared by the invention has higher adsorbability, and can adsorb 346.73 mg/g COD and 52.24 mg/L lead at most.

An implant comprises a metal body having a ceramic coating comprising monoclinic and orthorhombic phases of zirconium oxide ZrO2 and at least one multi-metal phosphate from the group comprising l-IV metal phosphates. A method of forming an implant is provided. A method of applying a ceramic coating to a metal body comprises the step of electrochemical oxidation of at least a portion of the surface of a metal body in aqueous electrolyte; in which the electrolyte contains at least two elements from a group consisting of zirconium, titanium, magnesium, phosphorus, calcium, fluoride, potassium, sodium, strontium, sulphur, argentum, zinc, copper, silicon, gallium; in which electrochemical oxidation is conducted in a plasma discharge (PEO) mode for at least one interval of time, and non-discharge modes for at least two intervals of time.

The invention relates to a friction block for a pneumatic clutch and a manufacturing method thereof. The invention aims to provide the friction block for the pneumatic clutch and the improvement of the manufacturing method of the friction block, the friction block for the clutch should have the advantages of being high in strength, large in torque, good in high-temperature resistance, high in damping performance and impact resistance, long in service life, high in mounting speed and precision and convenient to machine. The technical scheme is as follows, the friction block for the pneumatic clutch is characterized in that the friction material layer and the damping material layer are composed of the following components of, in parts by weight, 1) a matrix material including 20-30 parts ofsubwave fibers subjected to surface treatment, and 15-25 parts of surface-treated ETF precipitated fibers; 2) a friction performance regulator including 10-20 parts of carbon-based magnetic wear-resistant particles, 9-16 parts of phosphorus calcium silicate particles, 8-16 parts of porous silica sol ceramic composite flexible particles and 1-4 parts of fluorinated graphite; and 3) a forming adhesive including 8-10 parts of benzoxazine resin, and 6-10 parts of butadiene rubber.

The invention discloses phosphoaluminate cement modified sulfoaluminate cement clinker. The raw materials comprise the following chemical components: 40 to 50 percent of CaO, 26 to 40 percent of Al2O3, 6.5 to 12.5 percent of P2O5, 4 to 5 percent of SO3 and 5 to 10 percent of Fe2O3. Compared with the traditional sulfoaluminate cement, the phosphoaluminate cement modified sulfoaluminate cement clinker has the following advantages: the early strength is higher, the medium and later strength is improved better and the grinding property of the clinker is higher. Phosphorus calcium aluminate and calcium phosphate replace part of C2S, so that coexistence with C4A3S is realized; meanwhile, the formula comprises a large amount of iron phase and the iron phase and SO3 in the raw materials achieve the effect of a mineralizing agent, so that the appearing temperature of liquid phase and the viscosity of the liquid phase are reduced and low-temperature sintering of high-temperature ore phase phosphorus calcium aluminate is facilitated. The C4AF is hydrated to form iron glue, so that the phosphoaluminate cement modified sulfoaluminate cement clinker has high seawater scouring resistance and erosion resistance and is suitable for the field of marine engineering construction.

The invention belongs to the technical field of soil remediation, and particularly relates to a soil heavy metal passivator and a preparation method and an application thereof. The soil heavy metal passivator comprises the following components in parts by weight: 33-75 parts of carbonized bone meal; 7-30 parts of a metal salt antagonist; and 10 to 50 parts of solid alkali. The passivator takes thecarbonized animal bone meal and the metal salt antagonist as main components, the raw materials are cheap and easy to obtain, and mineral nutrients such as phosphorus and calcium can be provided forsoil; solid alkali is added as a precipitant of the metal salt antagonist, so that rapid dissolution and loss of metal salt are avoided, the purpose of persistently releasing metal antagonist ions isachieved, and the heavy metal absorption amount of crops is further reduced.

The invention particularly relates to a Q/P phase cement clinker containing phosphorus calcium aluminate, and belongs to the technical field of building materials. The cement clinker is composed of five mineral phases, namely a Q/P phase, calcium phosphoaluminate (C8A6P), calcium aluminate (CA), dicalcium silicate (C2S) and tetracalcium aluminoferrite (C4AF). According to the invention, by doping a certain amount of P2O5 into the system, not only is the generation of a Q/P phase promoted, but also the introduction of an iron phase reduces the cement firing temperature and promotes the generation of calcium phosphoaluminate, so that part of calcium aluminate is converted into calcium phosphoaluminate to replace part of C2S to ensure the later strength increase. The prepared cement clinker has the advantages of low firing temperature, good hydration performance, high early strength and no shrinkage of later strength.

The invention relates to a glycosidase and nucleic acid containing phosphorus-calcium fertilizer and aims to effectively solve the problem of huge economic loss caused to peasants by crop quality decline and serious disease damages due to phosphorus-calcium nutrition deficiency of soil and crops. The technical scheme for solution includes that the phosphorus-calcium fertilizer is prepared from, by weight, 6%-15% of glycosidase, 3-15% of glucose, 3-8% of nucleic acid, 3-8% of glycerin, 5-10% of phosphoric acid, 15-30% of calcium nitrate and the balance water. The phosphorus-calcium fertilizer has advantages of method simplicity, convenience in use, supplementation of deficient phosphorus-calcium elements of soil as well as phosphorus-calcium nutrition of crops, improvement of phosphorus-calcium element absorbability of the crops, optimization of fruit quality and great utilization effects and is an innovation on agricultural phosphorus-calcium supplementing nutritional fertilizers.

The invention comprises a method for preparing feed calcium hydrophosphate from a calcium source in phosphorite. According to the method, high-calcium low-phosphorus calcium compounds generated in the process that fluoride in phosphorite is removed through pyrolysis serve as calcium raw materials and most phosphorus raw materials for producing feed calcium hydrophosphate, defluorinated wet process phosphoric acid serves as part of raw materials and is used for producing feed calcium hydrophosphate, and calcium resources in phosphorite are fully used. The method reduces exploitation of limestone and emission of greenhouse gas carbon dioxide, raw material cost of limestone during production is reduced, and the great demand for feed calcium hydrophosphate widely required in the market is also met. The method can reduce the use amount of 60% sulfuric acid used for removing the calcium source in phosphorite for producing wet process phosphoric acid, correspondingly reduces stacking and treatment problems of phosphogypsum byproducts by 60%, and achieves the aims of saving resources, reducing production raw material cost, increasing the resource utilization rate of phosphorite and increasing economic benefits of producers.

The invention takes royal paulowinia flower leach liquor and medlar honey as raw material which is blended with purified water, a proper amount of royal paulowinia flower essence and pigment, and nectar-polypeptide tea manufactured after ultrasonic homogenizing. The method is has the advantages of being scientific in formula, rich in nutrition and moderate in sweetness and acidity.

The invention discloses a producing method of a phosphorus-calcium highly-water-soluble fertilizer and belongs to the technical field of fertilizers. The method includes steps of: a) adding a calcium-containing compound into a raw material that is wet-process phosphoric acid, reacting, filtering, adding a sulfide into the acid solution after filtration, reacting and filtering; b) subjecting the acid solution treated by the step a) and a raw material that is powdered rock phosphate to an acidolysis reaction, with the using amount of phosphoric acid being more than 500% of a theoretical reaction amount; c) thickening by maintaining the temperature of the slurry after acidolysis; d) transferring the supernatant liquid after thickening into a cooling and crystallizing tank, cooling and crystallizing, and performing solid liquid separation; e) adding water into filter residue of the step d) to prepare slurry, and thickening by maintaining the temperature; and f) transferring the supernatant liquid after thickening to a dryer having high-temperature air streams, and drying to obtain a product that is the phosphorus-calcium highly-water-soluble fertilizer. The method can control the content of water insoluble compounds of the product to be less than 3% and the main content to be higher than 98%, and is low in cost, high in phosphorus utilization rate and less in residue discharge.