36 results about "Calcium orthophosphate" patented technology

The invention discloses a polysaccharide/autosolidification calcium phosphate composite bone cement composition, which comprises the following components in percentage by weight: 10 to 95 weight percent of autosolidification calcium phosphate bone cement and 5 to 90 weight percent of polysaccharide. The bone cement composition can obtain bone cement with high strength, good toughness, strong plasticity, quick solidification, and good biocompatibility and degradability, thereby overcoming the defects of inadequate toughness and slow degradation in human bodies existing in the prior calcium phosphate bone cement materials and the defects existing in a plurality of enhancement methods in the prior art, and better meeting the requirement of operation use.

The invention relates to the field of wastewater comprehensive utilization, and particularly relates to a comprehensive utilization method of wastewater containing phosphorus and fluorine. The comprehensive utilization method comprises the following steps: carrying out twice neutralization on the wastewater containing phosphorus and fluorine, and controlling the final pH value after each time of neutralization; separating calcium fluoride from wastewater according to the solubility product of calcium fluoride and calcium orthophosphate, so as to enable the main ingredients of wastewater to be calcium orthophosphate and silica gel; separating silica gel by centrifugal separation to obtain a waste liquid containing phosphorus; carrying out secondary neutralization on the waste liquid containing phosphorus to enable the pH value to be 4-7; after generating calcium hydrophosphate, carrying out cooling crystallization treatment; separating calcium hydrophosphate to obtain a clear liquid, so as to realize treatment on wastewater containing phosphorus and fluorine. By adopting the comprehensive utilization method, maximal reutilization of the phosphorus fluorine resource is realized, the by-product silica gel is generated, the product additional value is increased, and the cost of treatment on wastewater containing phosphorus and fluorine is reduced.

The invention belongs to the technical field of planting, and discloses a high-yield planting method for improving the disease resistance of Citrus. The high-yield planting method comprises the following steps: 1) selecting and processing cultivating land, selecting the sandy land for tilling, and applying sufficient decomposedmanure, digging holes according to the row spacing of (2-3) * (3-4)m, applying2-5 kg of superphosphate and 2-3 kg of plant ash for per hole; 2) transplanting and planting; transplanting and plating between late August and early September, or between February and March, and applying nutrient solution at the same time; 3) applying fertilizer; applying compound fertilizer in the germination period by 0.5-1.2kg/tree; applying calcium orthophosphate in the florescence period by 0.3-0.6kg/tree, and applying boric acid with a mass concentration of 0.3-0.5% and disease-resistance nutritional agents with the mass concentration of 0.3-0.5% by means of foliar spraying; applying foliar fertilizer with a concentration of 0.3-0.5% during the fruit expansion stage; applying fruit expanding fertilization during full bearing period by 0.5-1.5kg/tree; 4) insect killing; preparing the insect-resist agents from probiotics, indole acetic acid, Chinese medicine extract and carbendazim. The high-yield planting method for improving the disease resistance of citrus has the advantages that the yield and quality of citrus is significantly improved; the disease-resistance of citrus is improved and the fragrance and the sweetness of the fruits are greatly improved.

The invention relates to compound porous calcium orthophosphate skeleton cement. Wherein, said cement is formed by calcium orthophosphate skeleton cement powder, 3-hydroxy butanoic acid-CO-3-hydroxy pentanoic acid polymer microball, and solidify liquid. And the production comprises: preparing orthophosphate skeleton cement solid powder; preparing analogue humor; mixing the PHVV microball radiated by Co60 gama-ray; washing, drying and emerging it in the analogue humor, to be washed and dried; then mixing the PHBV microball and solid powder, to be added with solidify liquid to obtain the product. The invention has high strength, quick degradation and controllable degradation speed. And it can be used to repair skeleton hurt and used as skeleton support.

Compressible solid tablets comprising from 20 to 38 wt % of an oily or viscous liquid, from 50 to 70 wt % of a cellulose polymer and from 2 to 15 wt % of an hydrophobic coating compound, wherein said particles size is 180 microns or less. For example, the oily or viscous liquid may consist of plant oils or surfactants such as cocamide DEA, cocoamide propyl betaine and or mixtures thereof. The cellulose polymer may be carboxy methyl cellulose, microcrystalline cellulose or mixtures thereof. The coating hydrophobic composition may be silicon dioxide, calcium orthophosphate, magnesium carbonate, aluminum oxide. Compressible solid particles are also disclosed which comprise from 50 to 70 wt % of a crystalline alcohol, from 25 to 45% of a cellulose polymer and from 5 to 18 wt % of a coating hydrophobic compound. For example, the crystalline alcohol may be a polyol such as xylitol, isomaltose, sorbitol, maltitol, starch hydrolysate; a terpene such as thymol, carvacrol or menthol. Particles are used in the manufacturing of tablets for personal hygiene in a quantity comprised from 1 to 16 wt % on the basis of the whole tablet.

The invention discloses a method for recycling phosphorus from an urban sludge anaerobic digestive fluid by utilizing dolomite. The method comprises the following steps of: mixing dolomite particles with the filtered anaerobic digestive fluid to obtain a digestive fluid rich in calcium and magnesium ions under the condition that the pH value is 4.0-4.5, filtering the digestive fluid and then reacting and carrying out primary phosphorus recycling under the condition that the pH value is 8.0-10.0 to obtain a recycling product which mainly comprises calcium orthophosphate and a supernatant; and adding the supernatant serving as a calcium magnesium source after the primary phosphorus recycling into the pretreated anserobic digestive fluid with the pH value of 4.0-4.5 in mol ratio of (0.10-0.70):1, and reacting to obtain a secondary recycling product containing calcium orthophosphate and magnesium ammonium phosphate under the condition that the pH value is 8.5-10.0. In the invention, the dolomite is taken as the calcium magnesium source, and phosphorus in the urban sludge anserobic digestive fluid is recycled through two steps; and meanwhile, partial nitrogen is recycled, the phosphorus recovery rate is high, the phosphorus content of the product is high, the chemical cost is low, and an economic and effective method is provided for sustainable utilization of phosphorus resources.

A lube-oil composition as castor oil consists of decanedioic acid-2-octester 47-50 proportion, polyvinyl glycol-ester sebate 28-30 proportion, methyl-polyacrylate 5.8-6.5 proportion, alkylphenol calcium 5.2-5.5 proportion, mono-succimide or diene-succimide 5.5-6.5 proportion, alkyl amino sulfate calcium orthophosphate 1.4-1.8 proportion, dimeric alkyl monosulfide aromatic amine 5.0-5.4 proportion, benzothiazole or benzotriazole 0.1-0.15 proportion, polyacrylate ethyl ester 0.3-0.5 proportion. It is cheap, non-toxic and low-volatile, has excellent degradative and lubricating performances, higher viscosity index and less consumption.

The invention discloses a calcium phosphate cement virgule PLGA virgule cefazolin sodium composite material and a preparation method thereof. The method uses dry ball milling to mix calcium phosphate cement and polyglycolic-polyactic acid, dissolves antibiotics into deionized water to prepare distiller liquor, mixes the antibiotics and the deionized water according to the set solid-liquid ratio, and forms artificial bone activity material, namely calcium phosphate cement virgule PLGA virgule cefazolin sodium composite. The method solves the problem of low strength of bone cement loading with a large quality of antibiotics effectively, improves the biological compatibility, degradability, and degradation tunability of polyglycolicacid, and acheives the aim of controlling medical release and the growth of the induced bone after polyglycolic acid degradation.

The invention provides a preparation method of a vascularization-promoting bone-tissue engineering stent. The method comprises the step that a chemical sedimentation method is adopted to react water soluble calcium salt, water soluble copper salt, water soluble zinc salt and the aqueous solution of a surface active agent with the aqueous solution of phosphate to prepare calcium-deficient apatite slurry, and powder body is obtained after drying is conducted, wherein the mole ratio of the water soluble calcium salt to the water soluble copper salt and the water soluble zinc salt is 15-168:1:1; the obtained powder body is mixed with a liquid-phase solution to be prepared into slurry and injected into a mold, and a porous calcium orthophosphate ceramic stent is obtained after drying shaping and high-temperature sintering are conducted; microspheres carrying GDF-5 are loaded on the surface of the porous calcium orthophosphate ceramic stent, and the vascularization-promoting bone-tissue engineering stent is obtained after vacuum drying is conducted. The tissue engineering stent has good osteoconductivity, osteoinductive, biological degradation performance and vascularization promoting performance, the difficult problem of the rapid repairing of bone defect is solved, and the method has good actual application prospects.

The invention discloses a synthesis technique used for a Beta-calcium phosphate material, comprising the steps as follows: quantitative polystyrene microspheres are added into concentrated sulfuric acid, sufficiently mixed and dispersed by ultrasonic, centrifuged, washed and dried, thus gaining vulcanized polystyrene microspheres; calcium nitrate solution is complexed with diammonium phosphate solution so as to lead the molar ratio of calcium and phosphorus in the complexed solution to be 1.4-1.6; the pH value of the solution is adjusted to be 8-10; furthermore, a surfactant (CTAB) and the vulcanized polystyrene microspheres are added in the complex so as to react sufficiently and gain a white substance which is washed, dried and calcined in a heating surface; subsequently, the white substance is heat-preserved for 2-4 hours at the temperature of 700-1000 DEG C and cooled with the furnace to gain the Beta-calcium phosphate powder. The synthesis technique adds the PS microspheres in the chemical reaction process to synthesize the Beta-calcium phosphate with the aperture and high purity, and has the advantages of simple process, strong repeatability, stable performance of the product, and the like.

The invention belongs to the technical field of feeds and specifically relates to a method for producing calcium orthophosphate and high-purity gypsum by using hydrochloric acid and phosphate rock. The invention provides the method for producing calcium orthophosphate and high-purity gypsum by using hydrochloric acid and phosphate rock, comprising the following steps: incompletely decomposing phosphate rock with hydrochloric acid, and filtering to obtain a solid 1 and a liquid 1; A. treating the solid 1: carrying out a reaction between the solid 1 and hydrochloric acid, filtering and separating to obtain filter residue and a filtrate 2; adding sulfuric acid into the filtrate 2, filtering to obtain a filtrate 3, heating the filtrate 3 for dechlorination, defluorination and dehydration to obtain calcium dihydrogen phosphate; B. treating the liquid 1: (1) removing fluorine in the liquid 1; (2) adding calcium to prepare calcium hydrogen phosphate; (3) removing magnesium; and (4) adding sulfuric acid to prepare high-purity gypsum. The method has advantages of simple step and low cost; and the prepared calcium orthophosphate completely meets the national standard and the gypsum obtainedhas excellent quality.

The invention relates to a red phosphor for LED lamps and a preparation method thereof, and belongs to the technical field of preparation of a phosphor for lamps. The red phosphor for LED lamps comprises the following ingredients (by weight): 30-40 parts of europium-activated yttrium oxide, 20-25 parts of ferroferric oxide, 1-5 parts of calcium orthophosphate, 1-5 parts of an adhesive and 5-10 parts of talcum powder. The preparation method comprises the following steps: crushing the raw materials, sieving through a sieve of 100-150 meshes, uniformly mixing, adding glycerin until solid content is 40-50%, and finally spray-drying under conditions of feeding temperature being 25-30 DEG C, drying medium being nitrogen, inlet air temperature being 130-150 DEG C and outlet air temperature being 110-120 DEG C, so as to obtain a finished product. The phosphor is applied in LED, and has high luminous intensity and excellent stability. In addition, the product is nontoxic and harmless and can be used for a long time.

The invention discloses a pretreatment filtration device for industrial production of calcium orthophosphate mineral substances, and relates to the technical field of calcium orthophosphate mineral substance producing and processing. The pretreatment filtration device comprises a shell. A supporting column is fixedly connected to the middle portion of the bottom end of an inner cavity of the shell. A feeding port is formed in the middle portion of the top end of the shell. A filter barrel is fixedly connected to the top end of the supporting column. A hopper is fixedly connected to the middleportion of the upper end of the filter barrel. The two sides of the top end of the hopper are fixedly connected with grinding walls. The grinding walls are fixedly connected with the shell. A grinding roller is arranged between the two grinding walls. According to the pretreatment filtration device for industrial production of the calcium orthophosphate mineral substances, through the arrangementof the grinding roller and the grinding walls, the mineral substances can be pulverized, and various substances are separated; through the arrangement of a stirrer, the mineral substances can be stirred; under the water buoyancy action, the substances different in density can be distributed at different heights; and through the arrangement of material dividing pipes and a material storage tank, minerals different in height can be classified, and the purposes of filtration and classification are achieved.

The invention provides a high-quality fruit yield increasing fertilizer which is prepared from, by weight, 20-40 parts of filtrated mud, 10-30 parts of plant ash, 5-10 parts of humic acid, 10-26 partsof urea, 10-20 parts of calcium orthophosphate, 15-30 parts of calcium triple super-phosphate, 15-24 parts of mono-ammonium phosphate, 10-20 parts of potassium chloride, 12-20 parts of potassium sulfate, 15-30 parts of potassium nitrate, 8-15 parts of perlite, 10-25 parts of zinc sulfate, 8-16 parts of edible fungus waste residues, 6-12 parts of livestock excrement, 7-12 parts of chitosan, 10-20parts of tapioca flour and 12-22 parts of pinewood powder. According to the yield increasing fertilizer, the effective period of the fertilizer can be prolonged, residues are omitted, soil cannot be hardened, the fertilizer can help the soil to form a granule structure, and air permeability, water permeability and water holding capacity are improved. The content of various nutrient elements is rich, so that fruits are rapid in development, good in quality and high in yield.

The invention relates to a green phosphor for LED lamps and a preparation method thereof, and belongs to the technical field of preparation of a phosphor for lamps. The green phosphor for LED lamps comprises the following ingredients (by weight): 50-60 parts of terbium-activated aluminate, 5-11 parts of nanometer aluminium oxide, 3-7 parts of calcium orthophosphate, 3-5 parts of an adhesive, 1-5 parts of talcum powder and 1-3 parts of an antioxidant. The preparation method comprises the following steps: crushing the raw materials, sieving through a sieve of 100-150 meshes, uniformly mixing, adding propylene glycol until solid content is 50-60%, and finally spray-drying under conditions of feeding temperature being 20-30 DEG C, drying medium being air, inlet air temperature being 120-130 DEG C and outlet air temperature being 110-120 DEG C, so as to obtain a finished product. The phosphor is applied in LED, and has high luminous intensity and excellent stability. In addition, the product is nontoxic and harmless and can be used for a long time.

The invention discloses a separation device for mining industry calcium orthophosphate substance slurry material processing, and relates to the technical field of mining industry material processing.The separation device comprises a sorting roller, wherein the inner top wall and the inner bottom wall of the sorting roller are fixedly connected with magnetic sorting elements distributed at equal intervals; each magnetic sorting element comprises a rubber block and a guide rod; the middle end of one side of the outer part of the sorting roller is fixedly provided with a transmission shaft; a bearing plate is arranged under the sorting roller; one end of the top of the carrying plate is fixedly provided with an air cylinder. The separation device for the mining industry calcium orthophosphate substance slurry material processing is favorable for the uniform stirring on a slurry material; in addition, the magnetic substance separation can be efficiently performed; the vertical regulationmovement can be favorably performed on one side of the sorting roller; the thorough discharging is facilitated; the discharging pipe blockage due to the slurry material is prevented; in addition, theoccurrence of a cleaning discharging dead corner is avoided; the sealing performance of the sorting roller is favorably ensured during the separation work.

The invention relates to a flower fertilizer for strengthening jasmine flower stability and a preparation thereof. The preparation method comprises the steps of step 1, washing and air-drying soybeans, corns, rice and boiled fish bones, and grinding the materials into powder, step 2, pulverizing liquorice, atragalus mongholicus and semen cassiae torae into powder, and adding the powder into a mixture acquired in step 1, step 3, adding certain amount of calcium orthophosphate, potassium hypermanganate, cellulase and pectase into the acquired mixture, mixing uniformly, and using cans for sealing. The flower fertilizer has abundant nutrients and trace elements. With the action of an enzyme, the nutrients in the flower fertilizer can be released in a better way to make plants absorb the nutrients more easily. The flower fertilizer can obviously prolong a flower season of jasmine, strengthen the jasmine flower stability, is environment-friendly and clean, and is highly suitable for the plantation of indoor decoration.