35 results about "Aragonite" patented technology

Beverage compositions and methods of preparing the same are provided herein. The beverage compositions can include calcium supplied from a calcium carbonate source including aragonite and a liquid component, such as water, a juice, a milk, and a combination thereof. Calcium components including aragonite particles and at least one additive agent as well as sweetener components including aragonite particles and at least one sweetener are also provided herein.

This invention provides aragonite- and calcite-based scaffolds for the repair, regeneration, enhancement of formation or a combination thereof of cartilage and / or bone, which scaffolds comprise at least two phases, wherein each phase differs in terms of its chemical content, or structure, kits comprising the same, processes for producing solid aragonite or calcite scaffolds and methods of use thereof.

The application belongs to the field of roof waterproof protective layer, and particularly discloses a roof waterproof protective layer construction method based on microbial concrete, and the specific steps are as follows: S1, microbial culture; S2, protective carrier wrapping; S3, concrete preparation; S4, concrete pouring; and S5, concrete curing; the method uses expanded perlite particles as carrier medium, and respectively immobilizes single bacillus and aerobic mixed bacteria, so that the single bacillus and the aerobic mixed bacteria are activated at the same time when cracks are formed, and a composite mineralized structure is induced to form, the repair effect of the cracks is enhanced, the high strength of aragonite and the good filling property of calcite are combined, the overall strength and durability of the crack repair area can be improved, the visual appearance of the concrete repair area is increased, the expanded perlite particles are used as carrier medium, and the hydrogel wrapped on the surface of the bacterial expanded perlite can protect the microorganisms and be used as a water storage agent, and the survival environment of the microorganisms is enhanced.

The invention discloses a kind of concrete doped with solid waste fiber and preparation method thereof, by mass fraction, preparation raw materials include:320 520 parts of cement, 480 1000 parts of fly ash, 100 400 parts of quartz sand, 2200 2400 parts of water, 10 30 parts of PVA fibers, 5 15 parts of water reducers, 5 15 parts of thickeners, 100 400 parts of carbonized solid waste materials;The carbonized solid waste materials are obtained by carbonizing 50 150 parts of recycled concrete micropowder, 50 100 parts of nickel-iron slag, and 1 5 parts of ether compounds. The present invention carries out carbonization treatment on recycled concrete micropowder, by regulating the ratio of recycled aggregate and nickel-iron slag, and the ratio of calcite and aragonite whisker controlled by the concentration of methyl ether or ether, replaces quartz sand and PVA fibers, improves recycled concrete micropowder surface performance, and the fine aggregate used is to protect environment, reduce resource waste and have more important significance.

The application belongs to the field of material chemistry, and particularly relates to a kind of one-side densification large-size biomimetic ceramic Janus film and a preparation method thereof.The Janus film is a two-layer structure composed of a dense layer and a loose layer, the dense layer is aragonite crystal, and the loose layer contains aragonite and calcite crystals.The application induces crystal densification growth by limited effect, does not need the extreme environment of high temperature and high pressure in traditional densification ceramic firing, successfully prepares one-side densification mineral film under mild experimental conditions, saves energy, and provides favorable conditions for subsequent mechanism research and expansion of synthesis method.

The invention provides a descaling device for a secondary water supply system of a pipe network, and relates to the field of secondary water supply of the pipe network, the descaling device comprises a secondary water supply water storage tank, arch-shaped support leg frames, a main water outlet pipe and a water inlet interface, the bottom of the secondary water supply water storage tank is provided with a plurality of arc-shaped support plates, the plurality of arch-shaped support leg frames are fixedly connected with the bottoms of the arc-shaped support plates, and the main water outlet pipe is fixedly connected with the arc-shaped support plates. The arched supporting foot frames are distributed in an array mode, and supporting bases are fixedly arranged at the bottoms of the arched supporting foot frames. A micro-current loop is formed through gradient alloy, the calcium carbonate crystal form is converted from aragonite to calcite, the adhesion of a scale layer is reduced, meanwhile, internal turbulent flow and shearing force are formed through the structural design of the spiral corrugated pipe to directly break scale crystal particles and inhibit crystal nucleus adhesion, and the electrochemical action range is expanded in combination with turbulent flow diffusion; and meanwhile, the ion charge interference range is expanded to the whole pipeline domain.

A method of making superhydrophobic concrete includes creating a mixture, wherein the mixture comprises aragonite and / or graphene, and heating the mixture to a temperature between 500° C. and 2,500° C. then drying the mixture, and, optionally, adding the mixture to concrete.

The invention relates to the technical field of building materials, in particular to conductive fiber reinforced concrete and a preparation method thereof. The conductive fiber reinforced concrete is prepared from 350 to 450 parts of cement, 500 to 900 parts of fly ash, 400 to 800 parts of iron tailing sand, 3 to 20 parts of a water reducing agent, 15 to 40 parts of modified aragonite whisker and 200 to 400 parts of water, wherein the water-binder ratio of the conductive fiber reinforced concrete is 0.2 to 0.35; graphene oxide is loaded on the surface of the modified aragonite whisker. According to the invention, the graphene oxide is coated on the surface of the aragonite whisker through the silane coupling agent, so that the conductivity of the aragonite whisker is improved; meanwhile, the concrete adopts iron tailing sand as fine aggregate, so that the conductivity of the concrete is further improved.

This invention provides a method for preparing high-purity aragonite-type calcium carbonate whiskers using electrolytic manganese slag. The method includes: adding tetrasodium IDS to the leachate of the electrolytic manganese slag, stirring and reacting to obtain an intermediate solution; the molar concentration ratio of tetrasodium IDS to manganese ions in the leachate is 1.2-2; slowly adding ammonia water to the intermediate solution while continuously introducing CO2 gas; after the reaction is complete, performing solid-liquid separation, drying the filter cake, and obtaining aragonite-type calcium carbonate whiskers. This invention uses electrolytic manganese slag as raw material to prepare high-value-added aragonite-type calcium carbonate whisker materials, achieving high-value utilization and full-component resource utilization while mitigating the environmental pollution caused by electrolytic manganese slag; this invention fully utilizes the soluble chemical components of electrolytic manganese slag while reducing production costs; and the entire preparation process is carried out at low temperature and normal pressure; the entire process generates no waste.

A method of making superhydrophobic concrete includes creating a mixture, wherein the mixture comprises aragonite and / or graphene, and heating the mixture to a temperature between 500° C. and 2,500° C., then drying the mixture, and, optionally, adding the mixture to concrete.

The application discloses a composite coating for low-carbon steel protection and a preparation method thereof, and belongs to the technical field of metal surface treatment and novel low-carbon building material. The composite coating comprises a low-carbon steel substrate and an inorganic transition layer formed by in-situ electrodeposition and directly attached to the surface of the substrate; the inorganic transition layer comprises a brucite layer and an aragonite layer generated by in-situ electrodeposition. The inorganic transition layer is combined with the low-carbon steel substrate through Fe-O-Mg covalent bonds, and the needle-shaped aragonite on the outer side of the inorganic transition layer can induce epitaxial growth of a subsequent functional coating, forming a component-interwoven interface transition zone. The preparation method adopts a step electrodeposition process, including a first stage of high current density deposition and a second stage of low current density deposition. The application realizes strong chemical combination and long-acting corrosion protection between the coating and the substrate by constructing a metal-inorganic connecting layer, and can be adapted to a calcium silicate carbonate cementitious material coating (preferably a gamma-C2S carbon mineralization coating) for metal corrosion protection.

This invention belongs to the fields of flue gas treatment and industrial solid waste resource utilization, specifically relating to the preparation of magnesium slag-based lightweight high-strength thermal insulation materials and a method for synergistic CO2 fixation. The method uses magnesium slag as raw material, adds cement, foaming agent, and foam stabilizer, and after grouting and molding, introduces carbon dioxide gas to carry out a mineralization reaction in a carbonization reactor to obtain a lightweight high-strength thermal insulation material. Through the control of process parameters, the prepared thermal insulation material contains abundant fibrous aragonite-type calcium carbonate with a large aspect ratio, which plays a supporting role in the strength of the thermal insulation material, with a maximum compressive strength of up to 11.89 MPa. The method of this invention involves a simple process, mild conditions, high CO2 mineralization efficiency, and is easily industrialized.

Compositions, methods, and uses of calcium carbonate-based composition are presented. The calcium carbonate-based composition includes a plurality of restructured calcium carbonate particles that has an average size of equal or less than 10 microns in diameter. Preferably, the calcium carbonate-based composition is generated by unstructuring the aragonite using an acid and a chelator and recrystallizing the unstructured aragonite in a customized form. Exemplary aragonite-based compositions include pavement compositions.

The invention discloses a preparation method of an Mg < 2 + >-mediated Eu-containing amorphous calcium carbonate luminescent nano material, and belongs to the technical field of solid-state photoluminescent materials. According to the method, Ca salt, Eu salt and Mg salt serve as raw materials to prepare mineralization mother liquor, then (NH4) 2CO3 solid is decomposed into CO2 and NH3 through an ammonium carbonate diffusion method (ADM), the CO2 and the NH3 penetrate through a gas-liquid interface to be diffused into the mother liquor to be subjected to mineralization reaction, nucleation and growth of calcite, aragonite and other crystal forms are delayed due to existence of Mg < 2 + > at the moment, and the mineralization effect is achieved. The service life of the amorphous calcium carbonate is prolonged, and Eu < 3 + > is sealed in the structure of the amorphous calcium carbonate, so that the Eu-containing amorphous calcium carbonate luminescent nano material with high rare earth doping concentration and highly uniform distribution is obtained.

Beverage compositions and methods of preparing the same are provided herein. The beverage compositions can include calcium supplied from a calcium carbonate source including aragonite and a liquid component, such as water, a juice, a milk, and a combination thereof. Calcium components including aragonite particles and at least one additive agent as well as sweetener components including aragonite particles and at least one sweetener are also provided herein.

The invention discloses a subaudio frequency wave sterilization and scale inhibition device which comprises a subaudio frequency wave generator frequency modulation module. The frequency modulation module of the subaudio frequency wave generator generates subaudio frequency waves, the subaudio frequency waves are transmitted to the subaudio frequency wave composite function type rare earth new material processor through the cable, and the subaudio frequency wave composite function type rare earth new material processor forms a subaudio frequency alternating magnetic field. The solubility of calcium, magnesium and carbonate ions in water is enhanced through the subaudio alternating magnetic field, the dispersion effect similar to that of chemical agents is achieved, meanwhile, aragonite-shaped soft scale which is easily washed away by water is generated at the position where the temperature of the water side of the heat transfer surface of the equipment is high and carbonate scale is easily formed, and the scale inhibition effect is achieved; the subaudio alternating magnetic field further interferes ion balance, enzyme activity and living environment of microorganisms through an energy field, so that growth and reproduction of the microorganisms are inhibited, flora structures of the microorganisms are destroyed, the sterilization effect is achieved, sterilization and scale inhibition are not needed through drugs, and the environment friendliness is good.

Disclosed herein are micro-sized aragonite compositions and methods for enhancing calcium uptake and overall plant health. The disclosure provides calcium compositions comprising particles of aragonite, preferably oolitic aragonite, that are mechanically reduced to micron or sub-micron dimensions to generate a highly bioavailable, rapidly dissolving calcium source suitable for foliar or soil application. The compositions may be incorporated into liquid suspensions, granules, coated fertilizers, seed treatments, or nutrient delivery systems, and may optionally include biologically active agents, growth stimulants, humates, or surfactants to further promote uptake. Methods of using the compositions to treat calcium deficiency, strengthen cell walls, reduce blossom-end rot, increase stress tolerance, and improve yield are also provided.

Provided is a building material, comprising: a base material and an amount of aragonite, the aragonite optionally present at up to about 60 wt % of the total weight of the base material and the aragonite. The base material can include any one or more of a cementitious material, a clay, a biopolymer, gypsum, and lime. The disclosed materials are useful in manufacturing processes, including additive manufacturing and other construction processes.

A method of making superhydrophobic concrete includes creating a mixture, wherein the mixture comprises aragonite and / or graphene, and heating the mixture to a temperature between 500° C. and 2,500° C., then drying the mixture, and, optionally, adding the mixture to concrete.

The application discloses a kind of Mg 2+ Preparation method of Eu-containing amorphous calcium carbonate luminescent nanomaterial under mediation, belong to solid-state photoluminescence material technical field.The present application first prepares mineralization mother liquor with Ca salt, Eu salt and Mg salt as raw material, then through ammonium carbonate diffusion method (ADM), make (NH4)2CO3 solid decompose into CO2 and NH3, and make it diffuse through gas-liquid interface into mother liquor and carry out mineralization reaction, and at this time, the existence of Mg 2+ Delay the nucleation and growth of calcite and aragonite and other crystal forms, prolong the life of amorphous calcium carbonate and seal Eu 3+ In the structure of amorphous calcium carbonate, and then a rare earth doped Eu-containing amorphous calcium carbonate luminescent nanomaterial with high concentration and highly uniform distribution is obtained.

Beverage compositions and methods of preparing the same are provided herein. The beverage compositions can include calcium supplied from a calcium carbonate source including aragonite and a liquid component, such as water, a juice, a milk, and a combination thereof. Calcium components including aragonite particles and at least one additive agent as well as sweetener components including aragonite particles and at least one sweetener are also provided herein.

Provided is a calcium-based carbonic acid compound for an inorganic molded article which, when used as an inorganic molded article of a building material, is capable of sufficiently reducing warpage or cracking when heated. This calcium-based carbonate compound for an inorganic molded article has a calcite-type crystal structure, an aragonite-type crystal structure, or a combination thereof, the aspect ratio of the average major axis to the average minor axis being 2-19, and the oil absorption being 40-90 mL / 100 g.

The present invention relates to a method for preparing a shell-mimicking liquid metal-sodium alginate-aragonite nanocomposite bulk material. The present invention combines a doctor blade coating method and a hot pressing method, and utilizes the synergistic effect of interfacial action and shear force to prepare a shell-mimicking liquid metal-sodium alginate-aragonite nanocomposite bulk material (conductive shell), thereby improving the degree of orientation and increasing the density of the composite material, and synergistically improving the stress transfer efficiency. Therefore, the shell-mimicking liquid metal-sodium alginate-aragonite nanocomposite bulk material prepared by the present invention has a flexural strength of 231 MPa and a fracture toughness of 5.09 MPa·m<supgt;1 / 2< / supgt;. In addition, the electrical conductivity of the composite bulk material reaches 9×10<supgt;‑< / supgt;<supgt;4< / supgt; Sm<supgt;‑1< / supgt>, and it can be used for in-situ monitoring of the structural integrity of the composite material. The artificial shell preparation strategy proposed by the present invention is simple and efficient, the material source is simple, and it is easy to realize large-scale preparation.

Compositions and methods are presented in which aragonite, and especially oolitic aragonite particles are used as infill material in an artificial turf structure or as sub-growth substrate for natural grass. Advantageously, oolitic aragonite particles provide: a superior microporous surface for effective water saturation to impart thermal control and environmental compatibility; ammonia neutralization of urine by reducing urea hydrolysis with the free calcium presented in the aragonite particles; and aragonite particle uniformity allowing for reduced compaction and desirable water draining.

A method of making superhydrophobic concrete includes creating a mixture, wherein the mixture comprises aragonite and / or graphene, and heating the mixture to a temperature between 500° C. and 2,500° C., then drying the mixture, and, optionally, adding the mixture to concrete.

Beverage and food compositions and methods of preparing the same are provided herein. The beverage compositions can include calcium supplied from a calcium carbonate source including aragonite and a liquid component, such as water, a juice, a milk, and a combination thereof. Food compositions including a dry food component and a sweetener component including aragonite particles and at least one sweetener are also provided herein.

The bypass flow water treatment equipment comprises a base and a treatment cavity, a mounting plate is fixedly connected to the upper portion of an inner cavity of the treatment cavity, a cathode generator is fixedly connected to the middle of one side of the mounting plate, and a cleaning mechanism used for cleaning the outer wall of the cathode generator is arranged on the outer wall of the cathode generator; the cleaning mechanism comprises a sleeve, a scraper and a second brush plate are arranged in an inner cavity of the sleeve, and a driving mechanism used for driving the cleaning mechanism to rotate is arranged in the middle of an inner cavity of the treatment cavity. A low-voltage superposition pulse electric field is applied through the anode generator and the cathode generator, calcium and magnesium ions in water are induced to form aragonite type calcium carbonate microcrystals easy to clean, scaling of pipelines and equipment is avoided from the source, and corrosion of the equipment in a circulating water system is reduced; after the scraper of the cleaning mechanism scrapes microcrystals on the outer wall of the cathode, the brush plate I and the brush plate II are matched to push back the microcrystals and capture the microcrystals in the sleeve, and the microcrystals are stopped from penetrating through the filter screen and entering the treatment cavity by combining with the filter screen interception of the through groove of the sleeve.

The invention belongs to the technical field of carbon dioxide capture and utilization, and particularly relates to a method for preparing aragonite type calcium carbonate with high specific surface area by utilizing waste carbon sequestration and application of the aragonite type calcium carbonate. The method comprises the following steps: leaching calcium-magnesium ions in the solid waste by using a leaching agent to obtain a calcium-magnesium ion leaching solution; and mixing the calcium-magnesium ion leachate with the carbon-rich organic amine solution, adjusting the pH value to 7-9, and reacting to obtain the aragonite type calcium carbonate with the high specific surface area. By means of the method, waste utilization and carbon sequestration can be achieved, the prepared aragonite type calcium carbonate with the high specific surface area can partially replace a cementing material for use and improve the performance of cement concrete, and the prepared aragonite type calcium carbonate with the high specific surface area has a good crystal nucleus effect and a good filling effect, can fill pores in the concrete, and can improve the strength of the concrete. The mechanical property of a cement-based material is improved, and the shrinkage deformation of concrete can be effectively reduced.

The present invention provides a descaling device for a secondary water supply system in a pipe network, relating to the field of secondary water supply in a pipe network. The device comprises a secondary water supply storage tank, an arched support frame, a main water outlet pipe, and a water inlet interface. The bottom of the secondary water supply storage tank is provided with a plurality of arc-shaped arcuate support plates, and a plurality of the arched support frames are fixedly connected to the bottom of the arcuate support plates. The arched support frames are arranged in an array, and a support base is fixedly provided at the bottom of the arched support frames. The present invention forms a microcurrent circuit using a gradient alloy to transform the crystal form of calcium carbonate from aragonite to calcite, thereby reducing the adhesion of the scale layer. At the same time, the structural design of the spiral bellows creates internal turbulence, and the shear force directly breaks up the scale crystal particles, inhibiting the adhesion of the crystal nuclei. The combination of turbulent diffusion expands the range of electrochemical action and expands the range of ionic charge interference to the entire pipe.

The invention discloses a method for preparing aragonite whiskers through high-speed CO2 flow field synergistic mineralization of solid waste and a product, and belongs to the technical field of solid waste recycling and inorganic functional material preparation. According to the method, industrial solid waste containing Ca < 2 + > and Mg < 2 + > serves as a raw material, the temperature is increased to be larger than or equal to 60 DEG C after leaching, a crystal form regulator and a dispersing agent are added, blowing mineralization is conducted on the solution through high-speed CO2 airflow, and oriented growth of the aragonite whiskers is achieved through the shear enhanced mass transfer effect of a flow field and the cooperative regulation effect of an additive. According to the method, the technical bottlenecks of low aragonite phase purity, easiness in whisker agglomeration and high raw material cost in traditional aragonite whisker preparation are overcome, a high-speed CO2 flow field is innovatively introduced into a solid waste mineralization system, and the CO2 mass transfer efficiency and whisker morphology controllability are remarkably improved.