361 results about "Strontium chloride" patented technology

A substantially anhydrous gel useful for bleaching teeth comprising: (i) at least 25% by weight of organic polyol; (ii) less than 3% by weight polyacrylic acid thickening agent; (iii) at least 10% by weight carbamide peroxide (or a chemically equivalent amount of another bleaching agent, such as 3% by weight hydrogen peroxide); (iv) neutralizing agent; (v) chelating agents; (vi) desensitizing agent; and (vii) miscellaneous ingredients such as Cirtoxain(R) and flavorants. The organic polyol is preferably glycerin. The polyacrylic acid thickening agent is preferably a carbomer. The desensitizing agent is preferably potassium nitrate, strontium chloride, potassium citrate, strontium nitrate, or a similarly effective alkali or alkaline earth metal salt of an organic or inorganic acid.

The present invention relates to one kind of efficient whitening toothpaste and its making process. The efficient whitening toothpaste is compounded with nanometer silica 30-40 wt%, natural glycerin 10-15 wt%, sorbitol 18-30 wt%, methylol cellulose 0.5-1.2 wt%, hydroxyethyl cellulose 0.1-0.3 wt%, sodium lauryl sarcosine 1.5-2.5 wt%, complex enzyme 0.01-0.1 wt%, whitening particle 1.5-5 wt%, EDTA-2Na 0.1-0.3 wt%, zinc citrate 0.5-3.5 wt%, propolis 0.3-0.8 wt%, strontium chloride 0.5-0.8 wt%, saccharin sodium 0.2-0.3 wt%, D-panthenol 0.8-1.0 wt%, perfume 0.8-1.2 wt%, and deionized water for the rest. Based on the formation cause of tooth yellow, dental plaque, tartar, tea dirt and cigarette dirt, four cleaning and whitening components are selected to produce synergistic whitening effect without damage to enamel.

The invention provides a preparation method of platy strontium carbonate particles. The steps include using reduced coal dust to roast reduced celestite ore at high temperature and prepare chamotte containing strontium sulfide; leaching the chamotte by hydrothermal to obtain strontium sulfide solution and simultaneously removing calcium, barium and other foreign ions from the strontium-containing solution; then carrying out oxidation treatment on the strontium-containing solution under the action of a catalyst and recovering sulphur side product and obtaining clean strontium solution; and finally preparing the strontium carbonate product with special platy structure by strictly controlling the carbonizing treatment condition of the strontium solution. The platy strontium carbonate product has uniform particles, high purity, and excellent flow property, dispersion property and fusion property with other materials. The preparation method avoids generating sulfureted hydrogen gas in carbonization process, thoroughly gets rid of sulfureted hydrogen pollution in the production process and can simultaneously separate solid sulphur to be beneficial to the strict control over the index of total sulphur in the product.

The invention discloses a method for preparing a red strontium sulphide long afterglow material, comprising a hydrothermal coprecipitation method which comprises the following steps that: (a) water-solubility strontium salt, water-solubility europium salt, water-solubility dysprosium salt, carbamide and water are weight according to the mol ratio of 1: between 0.01 and 0.05: between 0.01 and 0.05: between 4 and 6: between 28 and 32 and are put inside a container to be stirred and dissolved, the mixture is insulated in a sealing state at a temperature of between 80 and 160 DEG C for 5 to 24 hours so that a precursor is obtained; (b) the precursor is subject to filtering and annealing at a temperature of between 900 and 1200 DEG C in the reaction environment for 0. 5 to 2 hours so that the red strontium sulphide long afterglow material is prepared; the water-solubility strontium salt is strontium nitrate or strontium chloride or strontium acetate, the water-solubility europium salt is europium nitrate, europium chloride or polyimide, the water-solubility dysprosium salt is dysprosium nitrate or dysprosium chloride or dysprosium acetate, and a surface active agent is added according to the mol ratio of the water-solubility strontium salt to the surface active agent of 1: between 0.0001 and 0.0003. The method is widely applied to the fields such as building decoration, traffic transportation, military facilities, fire emergency service and goods for everyday consumption.

The invention provides a method for preparing strontium titanate powder. The method comprises the following steps in sequence: adopting a titanium tetrachloride solution and a strontium chloride solution as the raw materials, and a sodium carbonate solution and a sodium hydroxide solution as precipitators; carrying out liquid-phase chemical coprecipitation reaction on the raw materials and the precipitators, so as to obtain a precursor precipitate of the strontium titanate; separating the precipitate from the reaction solution system; washing; drying; and dynamically roasting at a high temperature in a rotating way, so as to obtain the strontium titanate powder. The method is environment-friendly, simple in technological process, and convenient for industrial production; and the prepared strontium titanate powder is stable in quality, and high in purity and uniformity.

The invention belongs to the field of glass manufacturing and discloses a clarifying agent for TFT-LCD (Thin Film Transistor Liquid Crystal Display) glass. The clarifying agent is strontium chloride of which the weight percent is 0.12-0.36% of the weight of the TFT-LCD glass raw materials. Due to the adoption of the clarifying agent, the weight percent of the strontium oxide correspondingly generated in the TFT-LCD glass is 0.5-1.5%. The invention also discloses a use method of the clarifying agent. The use method comprises the steps of mixing, founding and annealing. The invention also discloses an application of the strontium chloride which is used as the clarifying agent for the TFT-LCD glass. The invention provides a new application of the strontium chloride, which is the clarifying agent for manufacturing a TFT-LCD glass substrate; the content of hydroxyl in liquid glass is reduced; a clarifying effect is achieved; the air bubbles are reduced; and according to the use method, the optimal effect of the clarifying agent is achieved and the optimal classifying effect is achieved.

The invention relates to the finding that very favorable pharmacokinetic characters are obtained by combining two strontium salts in one pharmaceutical composition. The present invention relates in one aspect to a pharmaceutical composition comprising at least two strontium salts for use as a medicament, and in particular for the treatment and prevention of bone disorders such as osteoporosis. The composition preferably comprises strontium carbonate and strontium chlorides. Further included may be a vitamin D compound, preferably vitamin D₃.

The invention relates to a new preparation method of strontium ranelate heptahydrate. The products produced by the method have water content of 19.0 per cent to 20.4 per cent and the relevant substances are lower than 0.5 per cent. The strontium ranelate heptahydrate produced by the method is stable under room temperature, has little water content differences between batches and is kept for a long time under natural environment with unchangeable moisture, content and relevant substances. The method is characterized in that: (1) the reflux of the 2-[N, N- 2(carboxymethyl)amino]-3-cyano-group-4-thiopheneacetic-5-carboxylic acid tetra ester (b) is carried out in the proper sodium hydroxide aqueous solution of alcohol for 5h to 6h and the pH value is kept over 10 during hydrolysis; (2) the ethanol of 20 per cent to 60 per cent is added and then the strontium chloride aqueous solution with 2times to 2.5times molal weight is directly added, precipitates the crystal, is filtered and dried; (3) water is added to carry out the reflux and the little salt packed in the crude product is removed, and the product is collected through heat filtration. The invention discloses the drug combination containing the strontium ranelate heptahydrate which is used for the treatment of osteoporosis of women after menopause.

The invention discloses a method for preparing 6N-level strontium chloride. According to the method, a 2N-level strontium chloride solution is adopted as a material liquid, P229 is adopted as an extraction agent to extract and separate out impurity elements such as sulfur, sodium, potassium, beryllium, magnesium, calcium, barium, lead, cadmium, zinc, aluminum and iron from the 2N-level strontium chloride solution, and a 6N-level strontium chloride solution is prepared. The method specifically comprises five steps of saponification, fractional extraction and separation of SNaKBeMgCaSr/SrBaPbCdZnAlFe, fully-loaded standard fractional extraction and separation of SNaKBeMgCa/Sr, fractional extraction and separation of Sr/BaPbCdZnAlFe and reverse extraction. According to the prepared 6N-level strontium chloride solution, the purity of strontium is 99.99991%-99.99998%, and the yield is 92%-96%. The method has the advantages that the purity and yield of products are high, consumption of reagents is small, the separation efficiency is high, the technological flow is short, and the production cost is low.

The invention relates to a novel method for separating strontium carbonate waste slag acid leaching slurry. The method comprises the following steps: (1) crushing and sieving the strontium carbonate waste slag, adding water into the waste slag, and uniformly mixing the mixture; (2) adding hydrochloric acid after the slurry is heated to ensure the pH value is between 1 and 3, and regulating the water content to ensure that the liquid-solid mass ratio of the slurry is 5-8:1; (3) adding neutralizer into the slurry which is leached in the step (2) to ensure that the pH value of the slurry is between 4 and 7; (4) adding the neutralizer once again in the slurry after the slurry obtained in the step (3) is heated to ensure that the pH value of the slurry is between 5 and 6, and preserving the temperature for 1 to 1.5 hours to separate silica gel for modifying; and (5) centrifugally separating the slurry obtained in the step (4) to obtain solid phase and solution containing strontium chloride and calcium chloride. After the solid phase is washed, the waste slag and washing liquor are obtained, part of the washing liquor and the solution containing the strontium chloride and the calcium chloride are mixed and commonly used as raw material solution for reclaiming the strontium chloride, and the rest part returns to the step (1) to replace water for size mixing. The method ensures that the slurry has excellent separation performance.

The invention discloses a biological nursing toothpaste composition with a plurality of nursing functions, which comprises the following components in percentage by weight: 55 to 60 percent of sorbitol, 2 to 5 percent of propylene glycol, 0.5 percent of carboxymethyl cellulose sodium, 0.3 percent of saccharin, 2 percent of sodium dodecyl sulfate, 1 to 1.5 percent of essence, 0.2 to 0.5 percent of strontium chloride, 0.01 to 0.02 percent of sodium azulenesulfonate, 0.5 to 1.5 percent of radix notoginseng extraction solution, 25 percent of silicon abrasive, 0.001 to 0.002 percent of SOD complex enzyme (2,000 activity/100g), 0.001 to 0.002 percent of biological lysozyme (2,000 activity/100g), and the balance of water. For the biological nursing toothpaste composition, the added sodium azulenesulfonate and the biological active enzyme are compounded, thereby increasing the curative effect, controlling the decay of the enzyme activity, and effectively improving the stability of the enzyme activity.

The invention provides a preparation method for square strontium molybdate nano-plate with a two-dimensional structure, which comprises the following steps: selecting quaternary microemulsion comprising cationic surface active agent cetyl trimethyl ammonium bromide (CTAB), n-butyl alcohol, n-heptane and aqueous phase, taking sodium molybdate and strontium chloride as reactants, blending all components forming inverse microemulsion, and then violent stirring on a magnetic stirring apparatus to prepare uniform and transparent inverse microemulsion with stable characteristics, and then slowly blending microemulsion containing strontium chloride and microemulsion containing sodium molybdate, reacting, ageing, centrifugal separation, repeatedly washing with acetone, absolute ethyl alcohol and secondary water to prepare square platy strontium molybdate nano-structure with uniform appearance, size and height. The technical scheme that the preparation method uses the template effect possessedby reversed micelle microemulsion for preparing the two-dimensional square platy strontium molybdate nano-structure is characterized by simple production technology, safe production process, and agglomeration difficulty of products, and can be widely applied to the preparation of inorganic function materials.

The invention discloses an organic selenium leaf fertilizer, which is prepared from the following raw materials in parts by weight: 8 to 10 parts of organic selenium, 1 to 3 parts of selenium dioxide, 15 to 30 parts of zinc sulfate, 15 to 25 parts of magnesium sulfate, 25 to 35 parts of boric acid or borax, 2 to 4 parts of compound sodium nitrophenolate, 3 to 5 parts of strontium chloride, 3 to 5 parts of citric acid, 0.5 to 1.5 parts of surfactants and 0.5 to 1.5 parts of penetrating agents. The organic selenium leaf fertilizer has the advantages that the utilization rate of plant leaves on selenium is improved; the total consumption of the fertilizer is reduced; in addition, the film forming performance is also realized, so that the fertilizer cannot be easily flushed away from the leaves by rainwater; in addition, the desinsection and antibacterial effects are also achieved.

The invention relates to a preparation method of a strontium chelated sodium alginate coating on a titanium surface. The preparation method comprises the steps that a trihydroxymethyl aminomethane water solution of dopamine is firstly utilized for treating the titanium surface, sodium alginate is grafted to the surface of the above material by means of an amide reaction of dopamine amidogen and sodium alginate carboxyl, then the obtained material is put into a strontium chloride solution, and chelation of strontium is achieved. A catechol functional group in the dopamine adheres to the titanium surface in a non-covalent manner, and then the coating is constructed on the surface of a substrate. The method is easy to operate, and bonding with a matrix is good. Sodium alginate biocompatibility is good, strontium alginate gel formed after a large quantity of carboxyl existing in molecules and strontium ions react has good chelation performance on the strontium, the strontium chelated sodium alginate coating on the titanium surface is prepared, and long-acting bone inductivity is given to transplant materials by means of slow release and degradation of the strontium. The adopted sodium alginate is good in biocompatibility and has good chelation performance with the strontium, slow release of the strontium is achieved, and quite high promotional value is achieved.

The invention provides a removal method for calcium and strontium impurity irons in a rare earth feed liquid. The removal method comprises the following steps: kalifying and performing a reaction; performing an ageing reaction; performing centrifuge dripping; and performing high-temperature calcining. The rare earth feed liquid is a lanthanum chloride, cerium chloride or lanthanum cerium chloridefeed liquid containing calcium chloride and strontium chloride, wherein the concentration of lanthanum chloride, cerium chloride or lanthanum cerium chloride are 100 g/L-150 g/L, and the sum of concentrations of calcium oxide and strontium oxide is 0.5 g/L-15 g/L. By controlling the conditions such as reaction temperature, stirring time, pH value and settling time in a reaction process of sodium carbonate and a rare earth chloride solution, rare earth elements in the feed liquid are settled fully, and meanwhile, calcium and strontium ions are left in the solution, so that rare earth and calcium and strontium impurities are separated efficiently; and the removal method is stable in process and economical and environment-friendly.

The invention relates to a method for measuring the contents of strontium and aluminum in a strontium chloride injection by graphite furnace atomic absorption spectrometry. The method comprises the following steps of: precisely absorbing a standard solution and diluting; preparing the diluted solution to the standard solution; measuring the standard solution by using the atomic absorption spectrometry to obtain a standard curve; measuring the strontium chloride injection by using the atomic absorption spectrometry; and comparing the standard curve to obtain the contents of the strontium and the aluminum in the strontium chloride injection. Compared with the prior art, the method disclosed by the invention has the characteristics that the input and operation cost is low and expenses consumed by an ICP-MS (Inductively Coupled Plasma-Mass Spectrometry) are 4 times of the expenses GFAAS (Graphite Furnace Atomic Absorption Spectrometry); and the method has the advantages of simplicity in operation, low detection limit and the like, and is mature in the analysis method.

The invention discloses a preparation method for SLTON perovskite-type NOx powder. The method comprises the following steps: completely resolving a soluble strontium salt, a soluble lanthanum salt, a soluble tantalum salt and a combustion adjuvant in a methanol-water mixed solution, drying the solution, carrying out grinding till the raw materials are completely mixed uniformly, carrying out high-temperature calcination to form a precursor, and conducting nitriding high-temperature processing on the precursor to obtain the target product, wherein the molar ratio of the soluble tantalum salt to the combustion adjuvant is 1 to (1 to 500); the soluble strontium salt is one or the mixture of strontium chloride and strontium nitrate; the soluble lanthanum salt is one or the mixture of lanthanum chloride and lanthanum nitrate; the soluble tantalum salt is one or the mixture of tantalum pentachloride and tantalum ethylate; the combustion adjuvant is one or the mixture of urea, oxalic acid, citric acid and hexamethylenetetramine. The method has the advantages that the product purity is high; the impurity content is low; suitability for batch production and the fields of ferroelectricity, photo-electricity, photocatalysis, fuel cells and the like is realized.

The invention discloses multiple-effect toothpaste capable of removing stains and conducting maintenance. The toothpaste comprises 3-8 parts of a stain-removing agent, 2-6 parts of an enzyme preparation, 3-9 parts of sodium carboxymethylcellulose, 2-6 parts of green tea extract, 5-10 parts of glycerin, 2-7 parts of xanthan gum, 1-7 parts of stevioside, 2-5 parts of mint oil, 6-15 parts of water, 1-3 parts of strontium chloride, 1-4 parts of paeonol, 2-5 parts of thymol crystals, 4-9 parts of asarum, 2-6 parts of herba schizonepetae, 1-4 parts of immune globulin, 3-8 parts of Chinese barberry root extract, 2-6 parts of betel nut extract, 1-6 parts of herba patriniae, 4-10 parts of halite, 3-7 parts of Japanese pagodatree twig extract, 2-5 parts of radix ophiopogonis, 2-6 parts of fructus piperis longi, 4-9 parts of lasiosphaera seu calvatia, 1-6 parts of fructus arctii, 2-5 parts of nidus vespae and 1-5 parts of honey. The toothpaste has good tooth stain removal efficacy and can maintain gingiva and prevent redness and swelling of the gingiva.

The invention provides a method for measuring contents of Fe, Mn, Cu, Tin and Mg in titanium sponge, titanium and titanium alloy, which comprises the steps of: adding hydrochloric acid, hydrofluoric acid and boric acid into the sample for dissolving the sample; and adding strontium chloride for eliminating interference to obtain a sample liquid to be measured. The conventional flame atomic absorption spectrometry is used for measuring the absorbance of the sample liquid to be measured, and the corresponding content values of Fe, Mn, Cu, Tin and Mg can be obtained in the standard working curve of Fe, Mn, Cu, Tin and Mg according to the absorbance. The method not only is simple in operation, but also is high in accuracy rate of contents of Fe, Mn, Cu, Tin and Mg; and the measurement result is good in stability, repeatability and accuracy, thus completely meeting the demand of measuring the contents of Fe, Mn, Cu, Tin and Mg in titanium sponge, titanium and titanium alloy in the daily life.

The invention relates to the field of heat conducting equipment, in particular to a superconductive heat pipe and a heat transfer medium thereof, and solves such problems as easy corrosion, weak pressure resistance and short service life of superconductive heat pipes in the prior art. The superconductive heat pipe comprises a vacuum heat conducting pipe and the heat transfer medium, wherein the heat transfer medium is positioned in an inner cavity of the vacuum heat conducting pipe, and comprises the following substances: 1-3 parts of zinc permanganate, 3-8 parts of magnesium chloride, 5-15 parts of sodium tetraborate, 3-8 parts of potassium dichromate, 2-8 parts of ferrous chloride, 2-6 parts of strontium chloride, and 800-1000 parts of water. The superconductive heat pipe has the advantages of high conduction efficiency, stable performance and good energy saving effect, and is suitable for promotion and application.

The invention provides oil well cement for an ultrahigh-temperature deep well and a preparation method and an application thereof. The oil well cement for the ultrahigh-temperature deep well is prepared from the following components in parts by weight: 100 parts of oil well cement, 40 to 80 parts of first strength retrogression resisting agent, 3 to 10 parts of second strength retrogression resisting agent and 5 to 10 parts of filling agent, wherein the first strength retrogression resisting agent is silicon powder, and the second strength retrogression resisting agent is one of or more of aluminum oxide, aluminum hydroxide, zinc oxide, zinc hydroxide and strontium chloride. According to the oil well cement for the ultrahigh-temperature deep well, the problem of severe retrogression of long-term strength of existing oil well cement in the hydrothermal environment of the ultrahigh-temperature deep well at 200 DEG C to 240 DEG C can be solved, so that the well quality at high temperatureis effectively increased, interlaminar effective sealing is realized, the long-term sealing integrity of a shaft cement sheath is guaranteed, and the service life of an oil well is prolonged. In addition, the oil well cement has the advantages of simple preparation process and convenience in construction.

A novel preparation method of a SrTiO3/Cu2O junction composite nanomaterial comprises the following steps: dissolving titanium isopropoxide (tetraisopropyl titanate) and strontium chloride hexahydratewith acid, performing mixing, regulating pH to 3-4, heating up to 90 DEG C, and preserving the temperature for 3 h; then heating up to 400-500 DEG C, and preserving the temperature for 4-6 h; obtaining a SrTiO3 catalyst; at 35 DEG C, stirring copper acetate dihydrate to be dissolved in glycol methyl ether, performing stirring, performing ultrasonic treatment for 60 min, then adding a SrTiO3 catalyst, performing stirring, adding a sodium hydroxide solution, regulating pH to be 10-14, and performing stirring for 10 min at 50 DEG C; adding enough dextrose solution, and performing a reaction for1-1,5 h; and cooling to the room temperature, and performing centrifugal separation to obtain a solid precipitate which is the rTiO3/Cu2O junction composite nanomaterial. In a SrTiO3/Cu2O heterojunction composite catalyst, SrTiO3 and Cu2O form heterojunctions to facilitate application to electronics and holes. The heterojunction composite catalyst degrades organic dye wastewater under visible light, and particularly, the photocatalytic degradation efficiency of a methylene blue organic solution reaches 92%.

The invention discloses a biomimetic preparation method of a strontium carbonate crystal, wherein a coronary strontium carbonate nano crystal is prepared by a biomimetic method in a specific communication device by adopting strontium chloride hexahydrate and ammonium bicarbonate as reactants and sesbania gum as a biological regulation agent. According to the target product coronary strontium carbonate nano crystal, the corolla diameter is 3,000-6,000nm; the corolla is composed of nano rods with diameter being 50-80nm; the corolla structure is tight, with purity being greater than or equal to 99% and yield being 97-99%. The method disclosed by the invention has the characteristics of mild conditions, low energy consumption, large corolla diameter, tight corolla structure, high purity, highyield, low preparation cost, etc.