15 results about "Inorganic ions" patented technology

The invention provides a method for separating and extracting bio-based succinic acid from fermentation liquor, which comprises the following steps: (1) enabling the fermentation liquor to sequentially pass through a ceramic membrane and a nanofiltration membrane, and decoloring to obtain bio-based succinic acid decolored liquor; (2) sequentially carrying out ion exchange impurity removal and concentration treatment on the bio-based succinic acid decoloring solution to obtain a bio-based succinic acid concentrated solution; and (3) carrying out multi-stage cooling crystallization on the bio-based succinic acid concentrated solution to obtain the bio-based succinic acid, the multi-stage cooling crystallization comprises first-stage crystallization, second-stage crystallization and third-stage crystallization which are carried out in sequence. Through the steps of integrated membrane filtration, decoloration, ion exchange, concentration, multi-stage crystallization and the like, thalli, proteins, pigments, inorganic ions and other impurities in fermentation liquor can be efficiently removed, so that a high-purity bio-based succinic acid product is obtained, meanwhile, the product yield is increased, and energy consumption and waste discharge are reduced.

The application belongs to the technical field of catalytic materials, and relates to preparation of a biomass-based nanometer micro-interface catalytic material activated by a microdroplet method and application of the biomass-based nanometer micro-interface catalytic material in the field of water treatment. The application comprises preparation of a biomass-based nanometer micro-interface catalytic material activated by a microdroplet method, and a piezoelectric catalyst base adopts a biomass fiber with a tubular structure, after surface modification, inorganic ions are embedded in the pipeline, and under the condition of magnetic induction rapid heating, rapid carbonization and crushing are carried out to obtain a catalytic material with super-high surface area and interface energy. The material can quickly migrate at the interface of the microdroplet through hydrophilic and hydrophobic effects, increase the surface tension and interface energy, thereby improving the catalytic performance of the microdroplet activation method, generating high-activity free radicals, and realizing rapid degradation of organic matters in water.

The application discloses an intensive cultivation method of rare medicinal materials with plant allelopathy, and relates to the technical field of Chinese medicinal material cultivation, and comprises a radicle safety domain, an outer edge protection domain and a cultivation unit with a directional selection and penetration interface between the two domains, wherein the radicle safety domain is filled with a germination and cultivation substrate, and the outer edge protection domain is filled with a protection substrate and is configured with an allelopathy source plant component; seeds are placed in the radicle safety domain and seedling raising management is performed, a net outward seepage component is formed by irrigation and water replenishment within a sensitive window from seedling emergence to slow seedling, so that inhibitory small molecules outward migrate at the directional selection and penetration interface and are intercepted and inactivated on the outer edge side, while water and inorganic ion supplies are maintained; the outer edge grass and bacteria inhibiting effect is continuously maintained in the early stage of planting and flux maintenance is implemented.

The invention discloses a preparation method of an amine-modified oligomer cross-linked epoxy resin material. The preparation method comprises the following steps: (1) preparing a colloid of triethylamine-terminated inorganic ion oligomer and ethanol by adopting a liquid-phase acid-base neutralization method; (2) dispersing the triethylamine-terminated inorganic ion oligomer obtained in the step (1) and ethanol colloid in a liquid amine curing agent, and heating to prepare an amine-modified inorganic ion oligomer / amine curing agent solution; and (3) mixing the amine modified inorganic ion oligomer / amine curing agent solution with epoxy resin, and curing to obtain the epoxy resin composite material. A calcium phosphate oligomer is subjected to amino functional modification, so that the calcium phosphate oligomer can directly participate in a cross-linking reaction of epoxy resin, a hybrid material with a molecular-level organic-inorganic interface is formed, the mechanical strength and toughness of a resin material are enhanced, and meanwhile, the electrical insulation property is improved; and wide application prospects are shown in the fields of high-voltage insulation towers, electrical equipment, power electronic packaging and the like.

A resin composition which contains a thermosetting resin, an inorganic filler and an inorganic ion scavenger, and wherein the inorganic filler contains a first particle group having a peak in the range of 0.1 [mu] m to 15 [mu] m (inclusive) on a particle size distribution curve and a second particle group having a peak in the range of more than 15 [mu] m to 300 [mu] m (inclusive) on a particle size distribution curve, the content of the first particle group is from 1% by volume to 60% by volume (inclusive) with respect to the total content of the first particle group and the second particle group, and the content of the inorganic ion scavenger is from 0.1% by mass to 50% by mass with respect to the total amount of the thermosetting resin.

The application provides a nanocomposite, a nanocomposite phase material and a preparation method and application thereof, and the preparation method of the nanocomposite comprises the following steps: (1) mixing and reacting iron calcium phosphate ion oligomers and a polyvinyl alcohol solution to obtain a composite glue; and (2) mixing and reacting the composite glue obtained in the step (1) with a nanosheet dispersion solution to form a nanocomposite. The iron calcium phosphate ion oligomers and the polyvinyl alcohol are introduced into the nanosheet interlayer, in the evaporation self-assembly process, the ion oligomers are in-situ inorganic ion polymerization under the regulation of the polyvinyl alcohol molecular chain, an organic-inorganic interpenetrating homogeneous network is formed through hydrogen bond and coordination bond interaction in the nanosheet interlayer, and thus a firm 'organic-inorganic homogeneous network' structure is constructed between adjacent nanosheets. The nanocomposite prepared by the method has high tensile strength and toughness.

Methods, systems and devices for lowering a concentration of a PFAS in a solution including exposing a treatment solution to a UV light source from one or more lamps in a continuous reactor, the treatment solution comprising a PFAS, an inorganic ion, and having a pH of about 8 or more, and flowing the treatment solution through the continuous reactor at a flow rate of equal to or greater than 18.9 litres per minute (5 gallons per minute) while exposing the treatment solution to the UV light. The treatment solution to UV light in the continuous reactor results in partially or fully defluorinating about 80% or more of the PFAS in the treatment solution.

The invention discloses an acid-resistant loose nanofiltration membrane as well as a preparation method and application thereof, and belongs to the technical field of water treatment membranes. According to the preparation method, 3, 5-diaminobenzoic acid (DABA) is taken as a water-phase monomer and is subjected to interfacial polymerization with 1, 3, 5-trimesoyl chloride (TMC) on the surface of an ultrafiltration bottom membrane, and the acid-resistant loose nanofiltration membrane is obtained. Carboxyl contained in DABA can reduce the reaction activity of amino and acyl chloride groups in TMC and provide certain steric hindrance, and formation of a loose polyamide network structure is facilitated; meanwhile, the acid resistance of the nanofiltration membrane is enhanced by the contained whole aromatic rings. The prepared loose nanofiltration membrane can efficiently and selectively separate uranyl ions / coexisting inorganic ions under acidic and alkaline conditions, and shows excellent anti-pollution performance. The preparation method provided by the invention is simple in process and easy to operate, and the prepared acid-resistant loose nanofiltration membrane has potential application value for treating actual radioactive spent fuel post-treatment wastewater.

The application relates to a feldspar surface adsorption inorganic ion evaluation method based on a molecular dynamics simulation, characterized in that the evaluation method comprises the following steps: a feldspar surface model is constructed; water and inorganic ions are respectively inserted into the feldspar surface model to obtain a feldspar / water / inorganic ion model; molecular dynamics simulation is carried out on the feldspar / water / inorganic ion model; and the adsorption performance of the feldspar surface to the inorganic ions in water is evaluated according to the simulation result. The feldspar / water / inorganic ion model is constructed to carry out molecular dynamics simulation, the interaction process and the equilibrium state of the system under different conditions are obtained, the adsorption active sites in the simulation result are directly observed, and mechanism discussion and judgment are carried out by combining kinetic information analysis, which is helpful to find the best conditions for the feldspar to adsorb the inorganic ions in water and improve the adsorption efficiency.

The invention belongs to the technical field of reinforced concrete corrosion inhibitors, and particularly relates to a self-release composite corrosion inhibitor and a preparation method thereof.The preparation method of the self-release composite corrosion inhibitor comprises the steps that S1, sodium dihydrogen phosphate and disodium hydrogen phosphate are prepared to obtain an inorganic composite corrosion inhibitor solution; s2, dispersing carbon nanotubes in the inorganic composite corrosion inhibitor solution to obtain a self-release skeleton solution; s3, ethylenediamine tetra (methylene phosphonic acid) and the self-release skeleton solution are mixed and subjected to a hydrothermal reaction, and the self-release composite corrosion inhibitor is obtained; through compounding of inorganic and organic components, inorganic ions can form precipitates on the surface of the steel bar to isolate the steel bar from a service environment and prevent corrosion, the adsorbability of the organic components is high, a stable protective film can be formed on the surface of the steel bar, and multiple protection can be performed on the steel bar in a high Cl <-> ion service environment in a marine environment.

The application provides a preparation method of inorganic ion oligomer reinforced bacterial cellulose nanocomposite film. The method comprises the following steps: (1) extruding a bacterial cellulose wet film to reduce the water content; (2) immersing the bacterial cellulose wet film into a polyvinyl alcohol / inorganic ion oligomer solution to absorb and swell until equilibrium; and (3) stretching and orienting the bacterial cellulose / polyvinyl alcohol / inorganic ion oligomer wet film at a certain rate and drying the film to obtain a bacterial cellulose-based nanocomposite film. In the application, inorganic oligomers are used as crosslinking agents, which are in-situ polymerized in the highly oriented bacterial cellulose nanofiber network, and the organic-inorganic interface is firmly welded together to form an interlocking laminated structure, effectively solving the problems of phase separation and interface defects in organic-inorganic composite materials, and significantly improving the transparency, mechanical strength and toughness of the bacterial cellulose film. The method provides an effective way for manufacturing high-performance bacterial cellulose-based organic-inorganic nanocomposite materials.

A resin composition which contains a thermosetting resin, an inorganic filler and an inorganic ion scavenger, and wherein: the inorganic filler contains scale-like particles as first particles and aggregate particles of scale-like particles as second particles; the content of the first particles is from 1% by volume to 60% by volume (inclusive) with respect to the total content of the first particles and the second particles, and the content of the inorganic ion scavenger is 0.1-50% by mass with respect to the total amount of the thermosetting resin.

This invention relates to a method for preparing and applying a bioactive material for repairing tooth enamel, belonging to the field of biomaterials technology. The bioactive material is a bioactive material loaded with amorphous calcium phosphate-modified bovine serum albumin (xyl-BSA). The preparation method describes a procedure for preparing the bioactive material loaded with amorphous calcium phosphate-modified bovine serum albumin, and the application method describes the use of this bioactive material to prepare a tooth enamel repair agent and for repairing tooth enamel. In this bioactive material, xyl-glycosylated bovine serum albumin (xyl-BSA) guides the directional growth of CaP crystals along the prismatic direction of the tooth enamel, while G-ACP acts as a stable inorganic ion donor. Together, they form a dense, uniformly oriented hydroxyapatite layer, thus providing a possibility for tooth enamel repair.

The invention discloses a process for preparing a high-purity sodium ion aqueous solution through closed cycle, and belongs to the technical field of inorganic ion liquid preparation. The preparation method comprises the following steps: taking pure water dissolved sodium fluoride as an initial system, and adding metal calcium to react to generate superfine calcium fluoride precipitate and primary sodium ion water; subsequently, the sodium ion water is used as circulating mother liquor to completely replace pure water, and sodium fluoride and metal calcium are continuously supplemented to carry out closed cycle reaction. Fluorine ions and calcium ions are directionally combined and precipitated, sodium ions are continuously enriched in a liquid phase, the concentration is continuously increased along with the number of cycles, the system is always kept in a flowable liquid state, and side reaction of calcium and water can be inhibited due to reduction of water activity. The method breaks through the upper limit of the solubility of the traditional sodium salt, the ultrahigh-concentration sodium ion mother liquor can be obtained, the finished product can leave a factory after being diluted, the mother liquor can be recycled permanently, and the method has the advantages of high reaction efficiency, high raw material utilization rate, no waste liquid discharge, suitability for continuous industrial production and the like; the obtained product can be widely applied to the fields of skin care, moisture preservation, mucous membrane care, whole body electrolyte supplement and the like.

The invention provides a high-temperature-resistant clean fracturing fluid and a preparation method thereof, and belongs to the technical field of fracturing fluids. The cleaning agent is prepared from the following raw materials in parts by weight: 3-5 parts of a high-temperature-resistant gemini surfactant, 0.5-1 part of a cosurfactant, 5-7 parts of a cleanup additive, 1-2 parts of nano granules and 70-80 parts of water. The high-temperature-resistant clean fracturing fluid prepared by the invention has better high-temperature resistance, salt resistance and shear resistance, good sand-carrying effect and excellent viscoelasticity, avoids the damage of a large number of inorganic ions to the change of original properties of a stratum, is simple in preparation process and wide in raw material source, and has a wide application prospect in oil and gas field exploitation and yield increase.