87 results about "Calcium" patented technology

Bone implant comprising a solid structure provided with an osteogenic layer comprising calcium phosphate in the form of particles (dihydrate and/or alphahemidrate) with a weight average particle size comprised between 10 μm and 250 μm.

The invention belongs to the technical field of a refractory castable, and particularly relates to a castable for a blast-furnace tapping channel and a preparation method thereof. The castable comprises the following components: 55-80wt% of fused brown corundum, 8-21wt% of silicon carbide, 0.01-5wt% of carbon source, 2-8wt% of alpha-alumina micro powder, 1-7wt% of fused white corundum, 0.5-5wt% of silica powder, 1-5wt% of calcium aluminate cement, 0.3-4wt% of elemental silicon powder, 0.01-0.4wt% of water reducing agent, 0-0.2wt% of organic fibers and 0-0.2wt% of aluminum powder. The preparation method comprises the steps of dry-blending the components for 10-180 seconds, additionally adding water accounting for 4-6wt% of the raw materials, and stirring for 1-8 minutes so as to obtain the castable. Carbon nanotubes are introduced to the castable for the tapping channel so as to partially or totally replace spherical asphalt and be uniformly distributed in the castable, and can be filled into tiny gaps so as to improve the compactness of the castable, so that the anti-erosion and anti-scouring properties of the castable are improved, toxic smog formed in the process of baking the spherical asphalt is reduced, and the body injury of workers and the environmental pollution caused by the toxic smog are reduced; the castable has the characteristics of excellent properties, long service life and environmental friendliness.

The invention discloses a nutritive skin-carrying beef product and a preparation method of the product. The nutritive skin-carrying beef product is obtained through adding traditional Chinese medicinal materials of gastrodia elata, ginseng, eucommia ulmoides, fructus amomij, foeniculum vulgare, rhizoma kaempferiae, galangal, clove, white ginger, long pepper, flavedo, cinnamon, anisochilus, mentha haplocalyx, cranadilla, myrcia, shaddock ped and ginger into the skin-carrying beef, adding water into the materials and boiling the materials. Compared with the prior art, the nutritive skin-carrying beef product has the advantages that various traditional Chinese medicinal materials are added for preparing the skin-carrying beef, the skin-carrying beef can be easily cooked through boiling, in addition, the nutrition of various traditional Chinese medicinal materials can be sufficiently absorbed by the skin-carrying beef, the manufactured skin-carrying beef is fragrant and delicious, the mouth feeling is pure, sticky and soft, the tooth sticking is avoided, the product is easy to digest, the nutrition can be easily absorbed, and the nutritive skin-carrying beef product has the health care effects of tonifying Qi, replenishing blood, tonifying brain, supplement calcium and preventing the dizziness after being eaten for a long time.

The invention discloses a new method for formic acid purifying, which comprises the following steps: the aqueous solution of dilute formic acid with the mass concentration of more than 30 percent and anhydrous calcium chloride are mixed, heated to 80 to 95 DEG C so as to lead the anhydrous calcium chloride to be dissolved, and then formic acid with high concentration is obtained through atmospheric distillation; and the mass ratio of the water in the aqueous solution of calcium chloride anhydrous and the aqueous solution of dilute formic acid is 1: 1.5 to 1.8. The purifying method of formic acid is a process which has the advantages of simple and convenient operation, fastness, low cost and cleanness, thus being suitable for industrial production.

The invention discloses a pigeon feed and a preparation method thereof, and relates to the technical field of feeds and processing methods thereof. The pigeon feed comprises the following raw materials: calcium powder, spiral shell, dried small shrimp, slaked lime, edible salt, shell powder, ginger, bee glue, wheat, buckwheat, broomcorn, corn, pea, mung bean, apium graveolens, momordica grosvenori, dried orange peel, rhizoma alismatis and grifola. The pigeon feed provided by the invention is capable of improving the immunity and ant-disease capability of the pigeons, and has a certain prevention function for the common diseases such as cholera fowl and coccidiosis of pigeons so as to prevent the pigeons from the diseases. The pigeon feed is balanced in nutrition; and the meat quality of the pigeons which eat the pigeon feed is better.

The invention discloses a method for preparing rod-like magnesium hydroxide from salt lake brine. The method comprises the following steps of: concentrating and crystallizing salt lake brine, from which elements such as potassium and lithium are extracted, serving as a raw material to obtain bischofite; dissolving the bischofite separated by crystallization into water to prepare magnesium chloride solution; introducing ammonia gas to perform magnesium precipitation reaction; when the pH value reaches 7-8, stopping introducing the ammonia gas, reacting at the temperature of 30-50 DEG C for 0.5-2 hours, aging and filtering to obtain alkaline magnesium chloride and magnesium precipitation mother liquor; dispersing the alkaline magnesium chloride in mixed solution of ethanol and water to obtain alkaline magnesium chloride suspension; adding sodium hydroxide to further precipitate to obtain rod-like magnesium hydroxide; filtering and separating to obtain magnesium precipitation mother liquor; replenishing the bischofite and circulating for precipitating the alkaline magnesium chloride; feeding to an ammonia still process along with concentration enrichment of magnesium precipitation mother liquor in ammonia chloride; performing ammonia still with lime; and circulating the produced ammonia gas to precipitate the alkaline magnesium chloride of a next batch and producing byproduct calcium chloride, wherein the magnesium content in the brine is not less than 93.4 g/L. The method has the advantages of high product purity, good economic benefit, no environmental pollution, high operability and easiness for industrial production.

The invention discloses a microbial dust suppressant and its application. The microbial dust suppressant consists of 2.0wt%-3.0wt% of microbial powder, 29.0wt%-30.0wt% of calcium source and 67.0wt%-69.0wt% of ionized water Composition, described microorganism is bacillus lysinus, and described calcium source is calcium chloride. The microbial dust suppressant is evenly sprayed on the sandy soil surface under the condition of the ambient temperature of 2°C≤T≤20°C, uses microorganisms to capture carbon dioxide in the environment and converts it into carbonate, and reacts with an external calcium source to form a gelling effect The carbonate minerals have successfully consolidated loose sand particles into a whole and have certain mechanical properties. Compared with traditional methods, this method has significant dust suppression effect, low cost, convenient construction, no secondary pollution, and good ecological compatibility.

The invention relates to a production method of welding rod steel H08A and belongs to the technical field of ferrous metallurgy. The technical problems to be solved are that the continuous casting time is short in the production process of the welding rod steel H08A and a casting billet has obvious air bubble defects. According to the technical scheme, the production method of the welding rod steel H08A comprises steps of rotary furnace smelting, LF refining and continuous casting, wherein in the LF refining, a refining slag adjusting agent with principal components being Al, Al2O3 and CaO isadded for diffusion deoxidation, the degree of activity of oxygen in molten steel is controlled at 0.0020-0.0040%, the content of Als is 0.001-0.005%, silicoferrite is added with the content of Si controlled at 0.02-0.03%, and then calcium treatment is carried out. By establishing a reasonable molten steel control system, welding rod steel H08A continuous casting billets without internal defectscan be stably and continuously produced.

The invention discloses porous modified bentonite with foaming effect. The porous modified bentonite is characterized by being prepared from the following raw materials by weight: 85 to 90 parts of calcium bentonite, 1 to 2 parts of octadecyl trimethyl ammonium chloride, 1 to 2 parts of ammonium bicarbonate, 3 to 5 parts of activated carbon powder, 2 to 3 parts of sodium silicate, 0.8 to 1.3 parts of aminopropyltriethoxysilane, 2 to 2.5 parts of carboxymethyl cellulose, 5 to 7 parts of phenolic resin powder, 2 to 3 parts of crushed phoenix tree leaves and 3 to 4 parts of modified diatomite. According to the invention, a formula is reasonable; since bentonite is modified by adding foaming matters like ammonium bicarbonate and activated carbon powder and surfactants like octadecyl trimethyl ammonium chloride, the modified bentonite has porosity, so good adsorption effect is obtained; moreover, through good dispersion of the modified bentonite and the crushed phoenix tree leaves, the porous modified bentonite in the invention is porous and uniform in dispersion and is applicable as a water purification adsorbent, etc.

The invention discloses an eggplant planting method. The eggplant planting method comprises the following steps: when immersing seeds with warm water, continuously scrubbing and washing the seeds to remove mucus on planting surfaces, so as to accelerate water absorption and breathing and promote germination; in a germination promoting process, alternately carrying out change-temperature treatment every day so that sprouts are regular, thick and sound; at a fruiting later period of eggplants, applying nitrogen fertilizer, phosphorus fertilizer, calcium fertilizer and potassium fertilizer to the eggplants, wherein the ratio of the nitrogen fertilizer to the phosphorus fertilizer to the calcium fertilizer to the potassium fertilizer is 3 to 1 to 4 to 5. At the fruiting later period of the eggplants, the absorbing capacity on the fertilizers is remarkably improved, and long eggplant fruits are separated from leaves or leaf stalks, so as to prevent a bent fruit phenomenon; 1 percent flower dipping medicine is smeared at the inner side of the bent fruit, so as to correct fruit bending; the eggplants planted by adopting the planting method have the advantages of high germination rate, high yield and good shape, has a huge market potential and has a wide prospect.

The invention discloses a calcium citrate producing method includes following steps: (1) contacting a citric acid fermentation clear liquid with heavy calcium carbonate to obtain a crude calcium citrate crystal; (2) acidically hydrolyzing the crude calcium citrate crystal with hydrochloric acid to obtain a solution and filtering the solution; and (3) contacting a filtrate with one or more of a carbonate of alkali metals, a hydroxide of the alkali metals, an oxide of the alkali metals, ammonium carbonate and ammonium bicarbonate. The producing method can obtain the crude calcium citrate crystal precipitation directly through reaction between the simply-filtered impurity-containing crude citric acid fermentation clear liquid and the heavy calcium carbonate and then the high-purity calcium citrate, which is 99.9-99.99% in purity and can reach a standard in United States Pharmacopeia USP33-NF28 and American food additives FCC5, can be obtain just by performing one filtering process for removing impurities and performing a contact reaction between the obtained filtrate and one or more of the carbonate of alkali metals, the hydroxide of the alkali metals, the oxide of the alkali metals, the ammonium carbonate and the ammonium bicarbonate.

This invention provides a method for accelerating the proliferation of human mesenchymal stem cells, which comprises the steps of: transfecting recombinant expression carrier containing EGF to human mesenchymal stem cells, and stimulating with a certain concentration of calcium ions during the transfection process to divide into typical stem cells. Under nude mouse subcutaneous microenvironment induction, the stem cells are further divided into skin tissue stem cells, thus directly taking part in the proliferation of nude mouse hair. This invention can obtain rapidly proliferated human mesenchymal stem cells, thus having a potential application in clinical skin wound treatment.

The invention discloses a concrete expansive agent, which belongs to the technical field of concrete additives. The concrete expansive agent comprises the following raw materials in parts by weight: 20-30 parts of coal ash, 5-15 parts of gypsum powder, 5-15 parts of alumstone, 2-6 parts of aluminum oxygen chamotte, 10-30 parts of calcium sulphoaluminate, 4-12 parts of aluminum slag, 1-5 parts of calcium carbonate powder, 4-12 parts of nano aluminum titanate fiber, 8-16 parts of rosin rock ore sand, 5-15 parts of vermiculite power, 2-6 parts of polypropylene fiber, 3-9 parts of cellulose acetate butyrate, and 3-12 parts of triethanolamine. The concrete expansive agent is high in expansion rate and low in alkalinity, is capable of improving the property of concrete, preventing the concrete from cracking, meanwhile reducing leakage and improving strength, and is low in price, simple in production process, low in cost, and suitable for large-scale production.

The invention belongs to devices for cleaning deposited scale, and particularly discloses a rotary kiln for calcium aluminate powder. The rotary kiln comprises a rotary kiln body, a driving device, a rolling ring and supporting seats, wherein a driving gear is fixed in the middle of the rotary kiln body, and is connected with the output end of the driving device; the rolling ring is fixed on the rotary kiln body, and can roll on the supporting seats; a groove is matched with the rolling ring; the rotary kiln body inclines downwards towards the discharge end; a ring cleaning device used for cleaning deposited rings in the rotary kiln body is arranged on the rotary kiln body; the ring cleaning device comprises a rotating plate, ring cleaning rods and scraping blades; the ring cleaning rods are symmetrically fixed on the rotating plate along the center of the rotating plate; the scraping blades are fixed on the ring cleaning rods; the free ends of the ring cleaning rods are drilling heads; a sealing cover is arranged at the feeding end of the rotary kiln body; the ring cleaning device penetrates through the sealing cover. According to the rotary kiln, the deposited rings in the rotary kiln are reduced, and the work efficiency of the rotary kiln is improved.

The invention discloses a special milk tea powder for fitness and body-building and a preparation method of the special milk tea powder, and belongs to the technical field of formula milk powder and nutritional food. The special milk tea powder is characterized by being prepared from 76-90 percent of skim milk powder, 5-20 percent of maltodextrin, 2-5 percent of instant tea powder and 0.5-3 percent of calcium beta-hydroxy-beta-methyl butyrate. The special milk tea powder has the advantages that the problems of bad taste of the calcium beta-hydroxy-beta-methyl butyrate and the like are solved; the effects of nutrition complementation and collaborative gain are achieved; the market vacancy is filled; the milk tea powder tastes good, is convenient to eat, high in safety and high in acceptability, and does not have toxic and side effects; the damage degree of muscular tissues during exercise is obviously reduced; the decomposition of muscle proteins after strenuous exercise is reduced, and the lean body mass is increased; fat can be combusted, and endurance is improved; exercise induced fatigue is resisted, and the exercise capacity of an organism is improved; the milk tea powder is simple in production process and easy to produce, and has an extremely large market developing potential.

The invention relates to polypeptide calcium superphosphate. The polypeptide calcium superphosphate is characterized by comprising 0.02-1.6% of polypeptide and 98.4-99.98% of calcium superphosphate based on total weight of the polypeptide. The invention further relates to a preparation method of the polypeptide calcium superphosphate. The method comprises directly mixing the polypeptide with the pulverized calcium superphosphate evenly to obtain the pulverized polypeptide calcium superphosphate, or palletizing the pulverized polypeptide calcium superphosphate into granular calcium superphosphate. Additionally, the invention further relates to application of the polypeptide calcium superphosphate to agriculture.

The invention discloses an ox-bone dried bean curd and a production method thereof. The ox-bone dried bean curd is prepared from the following raw materials by weight ratio: mixing ox-bone juice and spice by weight ration of 97-99:1-3, adding bean curd blocks, boiling and sterilizing at high temperature. The ox-bone juice is prepared by rinsing ox bones, adding water, and boiling for 15-25 minutes at high temperature of 118-121 DEG C. The nutritional ingredient of the ox bones is fully utilized, and a unique process is used for production, so that the ox-bone dried bean has nutrient substances needed by the human body containing calcium, phosphorus, ferrum, amino acid, protein and the like. The spice is added in the production process, so that the ox-bone dried bean curd has garnet-red color, delicate taste and soft aroma and is incomparable to an ordinary sauce halide bean curd.

The present invention discloses a grafted blending oil-resistant halogen-free electric cable insulation material, which comprises, by weight, 10-20 parts of a vulcanized silicon resin, 40-60 parts of an EVA resin, 10-30 parts of polyamide, 10-20 parts of a POE grafted zinc maleate ionomer, 1-10 parts of low density polyethylene, 1-10 parts of calcium chloride, 60-90 parts of a modified flame retardant agent, 0.1-1 part of a coupling agent, and 0.5-5 parts of an antioxidant. According to the present invention, the grafted blending oil-resistant halogen-free electric cable insulation material uses the maleic anhydride grafted modified low density polyethylene, such that the electric cable is durable, can be used in the kitchen and other heavy oil places, and can still continuously work after encounter of various oil leakage conditions so as to win time for repair; and the process is simple, the use is safe, and the broad market application prospect is provided.

The invention relates to a method for recovering heavy metals in high-chlorine salt and high-acid wastewater, which belongs to the field of dangerous waste treatment and resource recycling. High-saltand high-acid wastewater undergoes hydrochloric acid resolution, adding medicine precipitation and calcium separation, neutralization and precipitation, acid-adding precipitation and zinc and lead separation, carbonate precipitation, residual heavy metal adsorption by exchange resin and evaporative crystallization, so that salt is obtained, and evaporative cooling water is used for washing metal precipitate sludge. After being treated by the method, wastewater is recycled, heavy metals are separated and recovered, crystallized chlorine salt can be adopted as a material for the chlor-alkali industry, bleaching in printing and dyeing and the like, and resource recycling of the heavy metal in the water is realized.

The invention relates to a flavor yoghourt with black rice and a white peach and a preparation method thereof, belonging to the technical field of processing of dairy products and beverages. The preparation method mainly comprises the following steps: cooking the black rice, then soaking the black rice in a sodium alginate solution with a concentration of 1%, then adding the black rice into a calcium chloride solution with a concentration of 1%, carrying out curing so as to obtain QQ black rice, then mixing the QQ black rice with a sugar solution according to a ratio of 1: 1 and carrying out filling and sterilization so as to obtain QQ black rice jam; cleaning and peeling the white peach, cutting the white peach into peach blocks with sizes of 5*5*5, preparing white peach jam, and then uniformly mixing the QQ black rice jam with the white peach jam according to a ratio of 1: 1 so as to prepare black rice-white peach jam; adjusting the content of protein in raw milk to no less than 3.6%, carrying out fermentation to prepare a yoghourt base-material, mixing the yoghourt base-material with the black rice-white peach jam and carrying out filling so as to obtain the black rice-white peach flavor yoghourt. The black rice-white peach flavor yoghourt is chewy, allows people to feel burst in their mouth and endows people with totally different mouthfeel experience.

The invention discloses a method for preparing aluminium benzoate from calcium-free chromium slag. The method comprises the following steps: (1) crushing calcium-free chromium slag; (2) adding water and leaching the chromium slag, and standing the leaching solution for the future use; (3) reducing hexavalent chromium in the leaching solution to trivalent chromium precipitates; (4) separating iron precipitates and aluminium precipitates from the chromium slag treated in the step (2); separating aluminium solution from the precipitates in the step (4); (6) adding ammonium benzoate solution in the aluminium solution obtained in the step (5), so as to generate aluminium benzoate. The method disclosed by the invention is capable of detoxicating the chromium slag containing hexavalent chromium, and converting the contained aluminium to another aluminium benzoate with a higher added value, thus turning harm into good, and turning waste into wealth.