155 results about "Calcium hydroxyphosphate" patented technology

Calcium-strontium-hydroxyphosphate (strontium-apatite-) cement preparations are described, comprising a powder mixture, which contains molar quantities of the components calcium (Ca), strontium (Sr) and phosphate (P) in the mixture in the ranges 1.00<Ca / P≦1.50 and 0<Sr / P<1.5, together with an alkali salt or an ammonium salt of phosphoric acid, and with water and / or an aqueous solution. The powder mixture particularly contains, as the Ca-component, Ca3(PO4)2 (TCP), and as the Sr-component SrHPO4 and / or Sr3(PO4)2 and optionally additional SrCO3. As the aqueous mixing solution for the formation of the strontium-apatite cement, an aqueous solution of an alkali salt or an ammonium salt of the phosphoric acid is suitable.

The invention discloses an inorganic material hybrid hard melamine polyurethane foam heat insulation material, a preparation method thereof and combined polyether used therein. The combined polyether comprises: a polyol flame retardant, hydroxyl calcium phosphate, an inorganic material compounded with hydroxyl calcium phosphate, glycerin, N, N, N, N, N-pentamethyl diethylenetriamine, dimethyl cyclohexyl amine, 33+ / -1Wt.% triethylene diamine's dipropylene glycol solution, organic tin, hexahydro triazine, a foaming agent 141B, water, and silicone oil AK-158. The preparation method includes: mixing the combined polyether with isocyanate in ratio, and then carrying out spraying or casting foaming moulding, thus forming the heat insulation material. The heat insulation material has the characteristics of stable physical performance, no deformation, no shrinkage, strong bonding force, low thermal conductivity, an oxygen index up to over 30%, and a combustion heat release rate increase index of less than 250W / S.

The invention relates to a preparing method for a complex function repairing agent for treatment of heavy metal contaminated soil. Biomass charcoal, quick lime and a siliceous material serve as raw materials, biomass charcoal based tobermorite is synthesized through a hydrothermal reaction, and a biomass charcoal based hydroxyl calcium phosphate complex agent can be generated by biomass charcoal based tobermorite in a phosphate solution. In land utilization, the complex agent has the function of enhancing soil fertility and can also effectively stabilize heavy metal ions in the soil, the mobility and the bio-availability of heavy metal are reduced to the maximum, and the purpose of in-situ repair of the heavy metal contaminated soil is achieved. The prepared complex function repairing agent has the advantages of being high in content of active ingredients, long in heavy metal stabilizing effect, wide in application range, small in using quantity, easy to prepare, low in cost and the like, and can be used for long-acting on-situ repair of farmland heavy metal contaminated soil or other industrial heavy metal contaminated soil.

This invention provides a method of phosphorus removal in high-phosphate-content industrial wastewater and phosphorus resource recovery of high-phosphate-content industrial wastewater, solves the problems of phosphorus removal in industrial wastewater, domestic sewage and other types of sewage and phosphorus resource recovery, and is particularly applicable to the field of the high-phosphate-content industrial wastewater. The method comprises the following steps: uniformly mixing 0 to 0.5 part of inorganic electrolyte, 0 to 2.5 parts of a water-soluble high-molecular polymer, 5 to 10 parts of calcium hydroxide (or calcium oxide) and 87 to 95 parts of soluble calcium salt in percentage by weight to obtain an inorganic-organic composite phosphorus removal chemical reagent; and adjusting the PH value of the wastewater with acid and alkali, oxidizing non-orthophosphate ions in the wastewater with an oxidant to adjust the acidity of the wastewater, and adding the inorganic-organic composite phosphorus removal chemical reagent to precipitate the phosphorus in the wastewater. The total amount of phosphorus in the wastewater is reduced from about 15500 mg / L to 5 mg / L or below. The main component of a filter cake is hydroxyl calcium phosphate, and the phosphorus content reaches 15 percent or above; and the filter cake can be used for preparing phosphoric acid or phosphate fertilizer.

The present invention relates to the preparation process of compound inorganic germicide, and belongs to the field of purifier material preparing technology. The present invention features that the surface of titania grain with photocatalytic activity has loaded porous structure coating layer of calcium hydroxy phosphate and to load germicidal silver ion in the porous structure. The preparation process includes mixing nano titania, ammonium dihydrogen phosphate and calcium nitrate to react inside a micro mixing reactor to obtain compound powder suspension; dropping the water solution of silver nitrate into the suspension for ion exchange to deposit silver ion on the surface of the compound grain; and heat treatment at 400-500 deg.c for 1 hr to obtain the compound inorganic germicide. The compound inorganic germicide has the synergistic effect of photocatalysis and metal ion germicide.

The invention belongs to the field of biological medicines, and particularly relates to hydroxyl calcium phosphate / aquogel materials which are used as repair and implanting materials for bones or teeth. In order to solve the problems that high bonding interfaces are not formed between tooth implants and dental bones and the like during tooth or bone repair in the prior art, the invention providesnanometer pore hydroxyl calcium phosphate / aquogel materials, which are characterized in that an aquogel surface is modified by polypeptides, and hydroxyl calcium phosphate is deposited on aquogel by the bionic mineralization process. The nanometer pore hydroxyl calcium phosphate / aquogel materials are materials which are highly close to or consistent with materials of human bodies in aspects of macroscopic forms and microstructures and are used for orthopedics and dentistry, are high in biocompatibility, and can be used as repair materials, filling materials and biological support materials for the teeth or the bones.

The invention discloses a deep phosphorous removal method for low-phosphorous water, belonging to the field of sewage treatment and relating to phosphorous removal applying an HAP crystallization method. The deep phosphorous removal method comprises the following steps: step 1, preparing modified coral sand; sieving natural coral sand and taking the coral sand with the grain diameter being 0.3mm-0.1mm as a raw material for preparing a first-stage fluidized bed reactor crystal seed; taking the coral sand with the grain diameter being more than 0.45mm as a raw material for preparing a second-stage fixed bed reactor crystal seed and modifying to generate hydroxylapitide on the surface; and step 2, enabling the low-phosphorous water to sequentially pass through a first-stage fluidized bed and a second-stage fixed bed and adding an alkali to adjust the pH value to 8.5-10.0; and meanwhile, adding a calcium salt solution and converting Ca<2+>, PO4<3-> and OH<-> in the water into hydroxylapitide to be crystalized on the surface of the coral sand, so as to remove phosphorous in the low-phosphorous water. The deep phosphorous removal method has strong technological controllability, stability in operation, good treatment effect and simple process flow; the investment and operation costs are saved; and filtering materials can be used for recycling phosphorous.

The invention relates to a production technology for producing spontaneous glaze bone china by efficient utilization of a desert material. The spontaneous glaze bone china is prepared from the following raw materials in percentage by weight: 50-60% of sand grains from desert, 15-25% of halloysite, 15-20% of feldspar, 2-9% of hydroxyl calcium phosphate, 2-3% of nanoscale spodumene, 1-3% of talc and1-1.5% of nanoscale zircon sand; the production technology of the bone china comprises the following steps: dosing according to the formula, ball milling, sieving, iron removal, filter pressing, first pugging, second pugging and setting firing; the setting firing comprises the following steps: preparation of ceramic pug, automatic charging, vacuum heating and pug squeezing, automatic blanking andfeeding, automatic moulding by rolling, drying, demoulding and once firing. According to the production technology provided by the invention, the sand grains in desert are introduced into the Dehua jade china pug to partially replace the raw materials, and the ceramic firing energy consumption and production cost are reduced by the once firing technology; meanwhile, in combination with the intelligent production technology, traditional Dehua jade chain preparation technology is integrated with intelligent production.

The invention discloses a hydroxyl calcium phosphate-active carbon composite material and application thereof. The composite material comprises active carbon and hydroxyl calcium phosphate in a mol ratio of 24-36: 1. The preparation method comprises the following steps: (1) adding calcium oxide or calcium hydrate into a phosphoric acid solution where active carbon suspends and carrying out a reaction under stirring, wherein a mol ratio of phosphoric acid to calcium oxide or calcium hydrate is 3: 4.8-5.2; (2) adjusting the pH value of a solution obtained in the step (1) to 8-9, carrying out stirring and carrying out standing for aging; and (3) subjecting the solution to solid-liquid separation and carrying out drying and levigation so as to obtain the composite material. The composite material has a substantial treatment effect on lead and cadmium pollution; selected raw materials do not contain substances posing pollution to the environment; and the composite material has low preparation cost and restoration cost.

The invention provides a bioactive glass ceramic fiber-PEEK resin composite artificial tooth and a preparation method. The preparation method of the artificial tooth comprises the four steps of preparing hydroxy calcium phosphate crystal glass ceramic fragments, preparing bioactive glass ceramic fibers, preparing the bioactive glass ceramic fiber-PEEK resin composite artificial tooth and conducting surface layer treatment on the portion, implanted into the alveolar bone, of the artificial tooth. The bioactive glass ceramic fiber-PEEK resin composite artificial tooth product prepared according to the method not only has the enough mechanical property, but also has the very good biocompatibility, and the mechanical property, the biocompatibility and the bone bonding strength are all greatly superior to those of a conventional artificial tooth product; in addition, the whole preparation technology process is simple, operation is convenient, and therefore the artificial tooth is very worthy of energetical popularization.

The invention discloses strontium-reinforced bioactive glass ceramic, belonging to the technical field of biomaterials. The traditional hydroxyl calcium phosphate ceramic or strontium-reinforced bioactive glass ceramic has lower strength. The strontium-reinforced bioactive glass ceramic disclosed by the invention comprises the following glass ceramic components in percentage by weight: 30-50 percent of SiO2, 5-25 percent of P2O5, 8-45 percent of CaO, 6-20 percent of Na2O, 5-45 percent of SrO, 1-10 percent of ZnO and 0.05-1 percent of Ag2O. The structural form of the strontium-reinforced bioactive glass ceramic is glass ceramic, the microcrystalline composition of the strontium-reinforced bioactive glass ceramic is Ca8Sr2(PO4)6(OH)2 and the Vickers hardness (HV) value of the strontium-reinforced bioactive glass ceramic is 509kg / mm<2>. The strontium-reinforced bioactive glass ceramic is used for toothpaste as an addictive, or can be used for repairing teeth as a dental material.

The invention provides a soil remediation agent. The soil remediation agent is composed of, by weight, 10-25% of hydroxyl calcium phosphate, 30-45% of biomass charcoal, 10-15% of sodium sulfide, 10-15% of sodium bentonite and 10-15% of ammonium phosphate. The soil remediation agent is effective in remediation of soil contaminated by cadmium, lead, zinc, arsenic, copper and mercury.

The invention relates to environmental protection and resource recycling techniques and devices and particularly relates to an induced crystallization reactor, a solid-liquid separation device and a method for efficiently recycling phosphorus from sewage. The induced crystallization reactor and the solid-liquid separation device comprise an water inlet part, a medicating part, an acidity regulating part, an aeration stirring part, an induced crystallization reaction part, a solid-liquid separation part and a crystal recycling part, wherein the induced crystallization reactor is communicated with the solid-liquid separation device to adequately play seed crystal induction function. According to the device and the method, calcite is utilized as a seed crystal for inducing phosphorus in sewage so as to recycle phosphorus in a form of hydroxyl calcium phosphate crystals, and the recycled product can be directly applied to industrial and agricultural production, so that the sewage treatment, the environmental protection and the resource reutilization are organically combined. Besides, the method has the characteristics of small occupied area, high recycling efficiency, good quality of the recycled product, little equipment investment and convenient operation.

The invention discloses a composite material for dental prosthesis and a preparation method of the composite material. The composite material is prepared from the following components in parts by weight: 20-40 parts of polyethylene, 25-40 parts of xanthan gum, 20-25 parts of hydroxy calcium phosphate, 2-8 parts of chitosan, 1-6 parts of tributyl citrate, 4-8 parts of a phase transfer agent, 2-6 parts of divinyl tetramine, 25-35 parts of 2-methyl-2-propenoic acid 2-(phosphonooxy) ethyl ester, 4-8 parts of silver lactate, 7-20 parts of titanium dioxide, 10-15 parts of silicon dioxide, 3-8 parts of an antioxidant, 4-8 parts of hydroxyanisole, 1-13 parts of calcium fluophosphate, 8-23 parts of ethanol and 25-45 parts of double distilled water. The tooth filling material disclosed by the invention is good in mechanical strength, high in intensity and good in biocompatibility, and the safety of the material to human bodies is improved. The preparation method disclosed by the invention is simple and easy to implement, and is suitable for industrial production.

The invention provides an artificial skull repairing piece and a preparation method thereof. A 3D printing technology is adopted in the preparation method; autologous bone powder and hydroxyl calcium phosphate are used as basic raw materials of the artificial skull repairing piece, and thus the problem in biocompatibility of the artificial skull repairing piece is effectively solved; the outline dimension matching degree between the 3D printed artificial skull repairing piece and the defect part is high, and thus the working strength of doctors is greatly reduced; with good biocompatibility, the artificial skull repairing piece is conducive to inducing bone cell growth and promoting repairing; and due to high mechanical strength, the operation safety is improved.

The invention discloses a high-precision multi-tissue simulation fetal model, and belongs to the field of medical applied researches. The model mainly comprises simulation fetal bones, simulation fetal organs and simulation fetal muscular tissues, wherein the simulation fetal bones are made of hydroxyapatite, the simulation fetal organs are made of elastic materials, the simulation fetal muscular tissues are made of elastic materials, and the model is characterized in that according to computed tomography data of a fetus, the three-dimensional printing technology is adopted to make a fetal high-precision acrylonitrile-butadiene-styrene plastic model, and a simulation fetal silicone mold is made through the model. The manufactured simulation fetal organs and the simulation fetal bones are fixed in the mold, simulation muscular tissue material pouring is carried out, and the manufacturing of the simulation fetal model is completed. The manufactured simulation fetal model provides the characteristics such as ultrasound and X-ray detection of the external fetal simulation shape, the internal organs and the bones, and is widely applied to the fields, such as medical training and teaching, medical image processing and medical equipment detection.

The invention belongs to the field of molecular imaging technologies, and discloses a pH (potential of hydrogen)-responsive type ultra-sensitive nanometer fluorescent probe and a method for preparingthe same. The pH-responsive type ultra-sensitive nanometer fluorescent probe comprises pH-responsive matrix materials and fluorescent organic small-molecule dye. The pH-responsive matrix materials comprise calcium phosphate, hydroxy calcium phosphate, fluorapatite, calcium carbonate and ZIF series; the fluorescent organic small-molecule dye is positively charged dye or negatively charged dye. Themethod includes coating the positively charged dye with the negatively charged matrix materials; coating the negatively charged dye with the negatively charged matrix materials; coating the negativelycharged dye with the positively charged matrix materials. The pH-responsive type ultra-sensitive nanometer fluorescent probe and the method have the advantages that the fluorescent imaging sensitivity and specificity can be greatly improved as compared with the traditional small-molecule fluorescent dye, and response of tumor micro-environments can be detected in an ultra-sensitive manner; the pH-responsive type ultra-sensitive nanometer fluorescent probe which is a specific responsive probe prepared for unique properties of the tumor micro-environments is high in targeting, few in backgroundsignals and high in signal-to-noise ratio, small tumor can be detected in an ultra-sensitive manner, and the like.

The invention relates to a preparation method of a biofilm carrier and belongs to the technical field of water treatment. The preparation method includes: using diatomite as a template, and forming a layer of chelated coating adsorption calcium ions on the surface of the template through dopamine; burning white phosphorus to generate phosphorus pentoxide to react with alcohol to generate phospholipid; under action of ammonia water, and hydrolyzing phospholipid, wherein hydroxyl on a hydrolysis product are slowly combined with the calcium ions to generate crystal nuclei which grow gradually to finally obtain a carrier crude product with hydroxyl calcium phosphate on the surface. Hydroxyl calcium phosphate is high in biocompatibility, so that the problem that conventional biofilm carriers are low in compatibility with microorganisms is solved; saponin and organic carboxylic acid in biological fermentation liquid increase number of hydrophilic groups on the surface of the carrier under action of the microorganisms, improve wettability of the surface of the carrier and increase probability that sewage contacts with the carrier; nutritional substances provide both a nutritional source and more adhesion sites, so that adhesion difficulty of the microorganisms is lowered, film forming time is shortened, and the biofilm carrier has wide application prospect.

The invention discloses a soil improvement agent with a sterilizing effect. Starch, plant ash, dried poultry manure, corn straw, rapeseed slag, jerusalem artichoke extract, glycine, chitosan, and a fermentative microbial agent are used as main ingredients, and thiourea, montmorillonite, bamboo fibers, charcoal, polylactic acid fibers, polyamide fibers, sodium polyacrylate, calcium hydroxy phosphate, sodium hypochlorite, manganese chloride, barium hypochlorite, magnesium sulfate, a stabilizer and an antioxidant are added as raw materials to prepare the soil improvement agent with the sterilizing effect. The soil improvement agent can effectively improve soil property, reduces pathogenic bacteria in soil, and is pollution-free to the environment. Meanwhile, the invention further discloses a preparation method of the soil improvement agent with the sterilizing effect.

The invention discloses a method for preparing crude fish oil, collagen peptide and hydroxyapatite by using scaled fish skin. The method comprises the following steps: firstly, carrying out low-temperature oil extraction and once glue extraction on the scaled fish skin, obtaining an oil phase 1, a glue solution 1 and solid residue 1 after carrying out three-phase separation; carrying out secondary high-temperature glue extraction on the solid residue 1, obtaining an oil phase 2, a glue solution 2 and solid residue 2 after carrying out three-phase separation; mixing the oil phases 1 and 2 and then carrying out secondary three-phase centrifugal separation to obtain the crude fish oil; carrying out high-temperature calcining on the solid residue 2 to obtain the hydroxyapatite; merging the glue solutions 1 and 2 and then carrying out enzymolysis, decoloring, membrane filtration concentration, freezing and drying through alkaline protease to obtain the collagen peptide. The hydroxyapatite is high in biological utilization rate, and can be used in high-calcium biological products; the collagen peptide is good in sensory index and high in biological activity; and the crude fish oil accords with the standard of SC-T3502-2000 first-level crude fish oil. The method is different from the traditional method of separately treating scales and fish skin, and has the advantages of comprehensive utilization of raw materials, low processing cost and strong process applicability.

The invention relates to a technology and a device of environmental protection and resource recycling, and particularly relates to an induced crystallization reactor and solid-liquid separation device and a method for efficiently recovering phosphorous from the sewage. The induced crystallization reactor and solid-liquid separation device comprises a water inlet part, an agent adding part, an acidity regulating part, an aeration stirring part, an induced crystallization reaction part, a solid-liquid separation part and a crystal recovering part, wherein the induced crystallization reaction part is communicated with the solid-liquid separation part, and fully develops a seed crystal inducing function. According to the induced crystallization reactor and solid-liquid separation device and the method, phosphorus in the sewage is induced by using calcite as a seed crystal and is recovered in a hydroxyapatite (HAP) crystal manner, the recovered product can be directly applied to industry and agriculture so that sewage treatment, environmental protection and resource recycling are organically combined. In addition, the method has the characteristics of small occupation area, high recovering efficiency, good quality of the recycled product, less investment of equipment, and convenience in running and operation.

The invention discloses an antibacterial and durable tooth filling composite material and a preparation method thereof. The composite material is prepared from the following components in parts by weight: 30-40 parts of polymethyl methacrylate, 20-25 parts of hydroxyl calcium phosphate, 13-15 parts of acetoacetoxyethyl methacrylate, 3-8 parts of fimbrin, 1-3 parts of 2-thiol benzimidazole, 5-12 parts of a phase transfer agent, 12-30 parts of glycosaminoglycan, 5-10 parts of steamed bone meal, 4-8 parts of silver cyclohexylbutyrate, 3-5 parts of casein, 4-8 parts of hydroxy anisole, 3-8 parts of an antioxidant, 12-24 parts of sorbitol, 8-23 parts of benzyl alcohol and 25-45 parts of double distilled water. The composite material disclosed by the invention is capable of improving tissue compatibility and blood compatibility, and the composite material is antibacterial, capable of improving mechanical and physical properties, wear-resistant and durable to use; and the preparation method has the advantages of being simple in process, easy to operate, high in yield, low in pollution to environment and the like.

The invention discloses a preparation method of a nano-silver antibacterial agent, and belongs to the field of antibacterial technology. Activated carbon is crushed and then mixed with phosphorus pentoxide, mixture is dispersed in absolute ethyl alcohol, the phosphorus pentoxide is dissolved in the ethyl alcohol to form phospholipid, the phospholipid is adsorbed on the surface of the activated carbon, calcium nitrate is slowly combined with hydroxy on a phospholipid hydrolysis product to form hydroxy calcium phosphate crystal nucleuses, the hydroxy calcium phosphate crystal nucleuses are adsorbed in pore structures of the activated carbon, agglomeration is avoided, the crystal nucleuses are washed, dried and then calcined, activated carbon cores are removed to obtain calcined materials with porous structures, the calcined materials serve as carriers, glucose serves as a reducing agent for reducing silver-ammonia solution, and generated nano-silver particles are adsorbed by the calcined materials with the porous structures, finally filtered, washed and dried in vacuum to obtain the nano-silver antibacterial agent. The nano-silver antibacterial agent is good in stability and uniform in dispersion in the use process and has high antibacterial endurance.

The invention discloses an environmentally friendly biomass soil remediation agent. The environmentally friendly biomass soil remediation agent uses humic acid, dried chicken manure, decomposed coal, bagasse, corn stalk, rapeseed residues, a jerusalem artichoke extract, chitosan and fermented microbial agent as main components and is prepared by adding trisodium phosphate, methyl phenol, hydroxyl calcium phosphate, potassium nitrate, magnesium sulfate, calcium chloride, sodium borate, manganese dioxide, vanadium pentoxide, a stabilizer, an antioxidant and adopting the supplemented means of spray drying, pressurized calcination, high-temperature mixing, ultrasonic smashing, rapid stirring, light-avoiding fermentation and other processes. The environmentally friendly biomass soil remediation agent is reliable in soil remediation performance, can effectively decrease harmful substances in soil and has no pollution to the environment.

The invention discloses a sludge curing agent and a production method thereof. The sludge curing agent is prepared from the following raw materials in parts by weight: 60-100 parts of sulphoaluminatecement, 10-40 parts of Portland cement, 40-70 parts of superfine slag micro-powder, 20-40 parts of fly ash, 2-10 parts of dispersible latex powder, 2-10 parts of sodium silicate, 4-12 parts of hydroxyl calcium phosphate and 4-12 parts of modified nano montmorillonite. The preparation method comprises the following steps: grinding the sulphoaluminate cement, the Portland cement, the fly ash, the sodium silicate and the hydroxyl calcium phosphate, performing sieving with a 200-300-mesh sieve, adding the superfine slag micro-powder, the dispersible latex powder and the modified nano montmorillonite, and performing sufficient and uniform mixing to obtain a finished product. The sludge curing agent provided by the invention has strong dehydration property, and can effectively adsorb heavy metals in sludge and fix the heavy metals, so that the cured sludge can be recycled.

The invention relates to a method for preparing synthesized bone meal for producing bone-china. The method is characterized in that natural minerals calcium carbonate and calcium hydrophosphate are taken as initial raw materials, and granulous micro born meal with the particle size of 3-5 mu m is synthesized according to an apatite formation mechanism by using a wet crushing method. The method is characterized by comprising the following steps: adding calcium carbonate (CaHPO4.2H2O) and calcium hydrophosphate (CaCO3) with a Ca / P mole ratio of (3:2)-(5:3) and 50-300% of pure water into a ball mill, and crushing for 12-24 hours by using a wet method at room temperature; deironing, washing, precipitating and drying the obtained white emulsion; calcining the dried material for 1-3 hours at a high temperature of 1,050-1,250 DEG C so as to obtain the synthesized bone meal for producing bone-china. The synthesized bone meal which is applicable to bone-china production is successively developed by using an artificial synthesis method, the ratio of Ca to P is 1.5-1.67, the principal crystalline phase is calcium-free type hydroxyl calcium phosphate, the content is greater than 99%, components are stable, and the synthesized bone meal is an ideal substitute product of the conventional bone-china main body raw material, namely, animal bone meal, the property is superior to that of the animal bone meal, and the environment burden is small.

The invention provides a stable O / W-type pickering emulsion by using hydroxyapatite nano particles and a preparation method thereof. The method is characterized in that a reaction of calcium hydrate and phosphoric acid is used for preparing a biomass material which is a hydroxyapatite nano particles fluid suspension; the hydroxyapatite nano particles are taken as an emulsifier, edible oil or plantessential oil are added, and high-shear dispersion is carried out to prepare the pickering emulsion having good smearing performance and good physical stability. The pickering emulsion prepared by the method has good application prospect in the food and cosmetic industries.

The invention discloses a preparation method of soybean peptide biological calcium. The soybean peptide biological calcium is prepared through the following steps of using substrate yak bone powder and yak bone marrow powder as natural calcium sources, adjusting the pH, controlling the temperature of a water bath, and under the action of enzymes, enabling soybean peptides and the natural calcium sources in the water bath to be made into soybean peptide biological calcium products. The soybean peptide biological calcium prepared by the method disclosed by the invention is high in content of effective calcium. According to the preparation method, insoluble hydroxyl calcium phosphate in yak bones is effectively converted into the soluble soybean peptide biological calcium. Each 100g of the yak bone powder contains 22g of the calcium, and the extraction rate of calcium components in the yak bone powder can achieve 27%. The prepared soybean peptide biological calcium also reserves other substances, such as protein, bioactive peptides and amino acids in the yak bones and bone marrows, which are beneficial for human bodies. The yak bone marrow powder is added, so that the conversion rate of the soluble calcium components is increased, and besides, the beneficial substances such as the protein and the macromolecule peptides are converted into micromolecular polypeptide substances through enzymolysis, and are completely reserved. The soybean peptide biological calcium has the effect of improving the immunity of human bodies.

The invention discloses an adhesive composition for repairing bone cultural relics. The adhesive composition is prepared from a component A, a component B, a component C and water, which are mixed ina utilization process, wherein the component A is a calcium phosphate curing agent; the component B is a toughening adhesive; the component C is a phosphate accelerant; when the adhesive composition is prepared, the ratio of each component is as follows in parts by weight: 100 parts of the component A, 4 to 8 parts of the component B, 2 to 4 parts of the component C and 30 to 36 parts of the water. The components are mixed and uniformly blended according to the ratio to obtain paste with certain thickness; the adhesive composition has a good adhering and reinforcing effect on the fragile and broken bone cultural relics; a main curing substance is hydroxy calcium phosphate which is the same as a main component of the bone cultural relics, so that the disadvantages that a previous organic high molecular polymer curing agent is easy to age, has poor compatibility with bone cultural relic bodies and the like are overcome; the requirements on cultural relic protection are met.

The invention discloses a slip glaze and a preparation method of domestic ceramic with the same. The slip glaze comprises the following raw materials by weight: 25-32 parts of red clay, 6-9 parts of red loam, 18-22 parts of feldspar, 20-26 parts of quartz, 2.5-3.5 parts of niobium disilicide, 3-5 parts of nano silicon dioxide, 1.5-2 parts of nano boron nitride, 5-8 parts of nano zinc oxide, 1.7-2.4 parts of nano magnesium oxide and 5-7 parts of calcium hydroxyphosphate. The slip glaze disclosed by the invention is used for domestic ceramics, and is low in cost, high in yield and energy-saving;the wear resistance of the prepared domestic ceramic is far better than that of common slip glaze domestic ceramics, and the wear resistance is good; the glossiness is much higher than that of commonslip glaze domestic ceramics; the thermal shock resistance is obviously superior to that of common slip glaze domestic ceramics, and the thermal shock resistance is good; and the glaze surface is bright, smooth and bright in color.