460 results about "Inorganic ions" patented technology

A membrane separation method for reclaiming the electroplating sewage includes liqui material treating, lifting, pressurizing and delivering. It features the 3-class membrane separation to remove impurities, organic substances, fine suspended substances, Na ions, heavy metal ions, inorganic ions, etc. the regulation of pH value to prevent deposition of hydroxide, periodical automatic flushing and reuse of treated water.

The present invention relates to an all-solid-state film electrochromic glass, which comprises a substrate, an ion blocking layer, a first transparent conductive layer, an inorganic discolored layer, an inorganic ion conductor layer, an inorganic ion storage layer, a second transparent conductive layer and a protective layer, wherein the ion blocking layer, the first transparent conductive layer, the inorganic discolored layer, the inorganic ion conductor layer, the inorganic ion storage layer, the second transparent conductive layer and the protective layer are sequentially formed on the substrate through a vapor deposition method. The present invention further provides a preparation method for the all-solid-state film electrochromic glass. The all-solid-state film electrochromic glass has advantages of electrochromic energy-saving glass stability increase and manufacturing process simplifying.

Antimicrobial activated carbon having controlled release of the antimicrobial active agent are provided comprising activated carbon and an antimicrobial coating applied to at least a portion of its exposed outer surface wherein the antimicrobial coating comprises a binder and an antimicrobial water soluble glass or an inorganic ion exchange type antimicrobial agent. The antimicrobial coatings to be applied to the activated carbon materials are curable liquids or ultra-fine thermoplastic powder coatings. The antimicrobial activated carbon materials may be employed in filters as a loose fill or in sintered filters.

The invention relates to a method for preparing graphene oxide, belonging to the technical field of preparation of graphene oxide. The method comprises the following steps: firstly, preparing graphite oxide by adopting a chemical treatment method for natural crystalline flake graphite; then, separating and purifying the graphite oxide; and finally, mixing the purified graphite oxide with water, carrying out ultrasonic dispersion to obtain stable dispersion liquid, and spraying and drying the dispersion liquid to obtain graphene oxide powder. According to the method for preparing graphene oxide, effective separation of graphite oxide solid and aqueous liquor is realized by room-temperature natural settling of graphite oxide suspension, most of inorganic ion impurities generated in a preparation process are removed with supernatant liquid, so that a washing step is simplified. Moreover, a centrifugal washing method of absolute ethyl alcohol is adopted, solid-liquid separation in a centrifugal process is very easy to implement, a problem that solid-liquid separation is difficult in a water-washing process is overcome, time is greatly saved, and efficiency is improved.

An improved system for large scale production of proteins and/or polypeptides in cell culture, particularly in media characterized by one or more of: i) a cumulative amino acid concentration greater than about 70 mM; ii) a molar cumulative glutamine to cumulative asparagine ratio of less than about 2; iii) a molar cumulative glutamine to cumulative total amino acid ratio of less than about 0.2; iv) a molar cumulative inorganic ion to cumulative total amino acid ratio between about 0.4 to 1; or v) a combined cumulative glutamine and cumulative asparagine concentration between about 16 and 36 mM, is provided. The use of such a system allows high levels of protein production and lessens accumulation of certain undesirable factors such as ammonium and/or lactate. Additionally, culture methods including a temperature shift, typically including a decrease in temperature when the culture has reached about 20-80% of it maximal cell density, are provided. Alternatively or additionally, the present invention provides methods such that, after reaching a peak, lactate and/or ammonium levels in the culture decrease over time.

The invention discloses a method for preparing poly-organic silsesquioxane microsphere, comprising the following steps: 1) adding mixture of one or arbitrary several kinds selected from compound in structure general formula R1Si(OR2)3 into the mixture solution of water and alcohol, uniformly stirring the mixture, wherein R1 is hydrogen, methyl or vinyl, R2 is C1-C4 alkyl; 2) adding aqueous solution of alkali metal hydroxide or ammonia water into the reaction system and obtaining products after reaction. The method uses one-step method and the reaction is performed at normal temperature withoutcatalyst containing inorganic ion. The technology is simple and the production period is short and the obtained poly-organic silsesquioxane microsphere has good shape and the particle size is in narrow distribution at micro order.

The invention discloses a micron-grade magnetic core coated ferrocyanide adsorbent for removing Cs ions in radioactive wastewater and a preparation method thereof. The adsorbent takes magnetic Fe₃O₄ as a core, the surface is coated with a dense SiO₂ single layer serving as a protective layer, and an active component is metal ion stabilized potassium ferrocyanide coated on the outer layer, wherein stabilized metal ions comprise Ti, Zn, Cu, Ni, Co, and Zr. The particle size of the adsorbent is 0.2-5 μm, the adsorbent in the outermost layer is conductive to improving the adsorption efficiency for Cs⁺ ions, and an external magnetic field is adopted for realizing solid-liquid phase separation. The preparation method comprises the following steps: coating a hydrated metal oxide of Ti, Zr or Co, Ni, Cu or Zn on the surface of Fe₃O₄SiO₂ to form a composite magnetic material, wherein the hydrated oxide performs hydroxyl polymerization reaction with the surface of SiO₂ to produce M—O—Si bonds to improve the bonding strength between M and the surface of SiO₂; and finally reacting the composite magnetic material with a potassium ferrocyanide solution to form the required composite adsorbent, wherein the metal ions M achieve the effects of stabilizing the ferrocyanide and also achieve a bridge effect for bonding the ferrocyanide and the composite magnetic material together.

An apparatus for water treatment which comprises a means of removing ingredients contained in water and a means of adsorbing ions with a porous molding as an adsorbent, wherein the porous molding comprises fibrils comprising an organic polymer resin and an inorganic ion adsorbent. The fibrils form interconnecting pores open to the outer surface and have voids in inner parts thereof, at least partof the voids being open to the surface of the fibrils. The inorganic ion adsorbent has been deposited on the outer surface of the fibrils and on the surface of the voids in the fibrils.

The present invention provides a liquid-separation film-concentration evaporation-concentration system and a method thereof. The stock solution at a given temperature is contacted with a drainage porous film; water vapor passes through the porous film in gas-state way and is removed and condensed for collection at the other side of the film. Through the cycling of the process procedures, the concentrated substance of the stock solution can be obtained at one side of the film, and is rich in the inorganic ion and the organism in the processed water, and pure water can be obtained at the other side of the film. Therefore, the pure water can be directly recycled for use; solid substances such as the concentrated crystallized salt can be obtained at the bottom of a thermal pool. The air-lifting up-floating liquid can be precipitated and solidified with the methods such as adding of the flocculating agent, acid, alkaline and other chemical agents or with other well-known methods; solid-liquid separation is performed through the hydrophilia film; the clean liquid that is filtered by the film is returned to the evaporator so as to be continued for evaporation and concentration. For the sewage treatment, the sewage drainage quantity can be greatly reduced; for the separation of the sea water and the fermentation solution, the crystallized salt can be obtained directly.

The invention provides a caesium selective absorbent and a preparation method of the caesium selective absorbent and belongs to the fields of material preparation and radioactive liquid waste disposal. The caesium selective absorbent is in a sphere-similar particle shape and comprises the following components in parts by weight: 50-90 parts of an inorganic ion exchanging agent and 10-50 parts of polyacrylonitrile, wherein the inorganic ion exchanging agent has high selectivity to caesium. According to the sphere-similar caesium selective absorbent, the high selectivity of the inorganic ion exchanging agent to the caesium is remained, and the caesium selective absorbent is regular in shape and can be uniformly filled in a fixed bed due to the sphere-similar shape, so that the problem that a primary inorganic ion exchanging agent is not suitable for the operation of the fixed bed is solved, and the prepared absorbent can be used for processing radioactive liquid waste generated by nuclear industries and nuclear power stations through the fixed bed. The preparation method is unique and has the advantages of simplicity in operation, mild synthesis condition and the like; a granulating device utilized in the preparation method is simple, is easy to operate and is good in repeatability.

A process and medium for decontamination of water containing anionic species including arsenic and chromium, wherein compounds comprising divalent and trivalent metal oxides and sulfides are used to form surface complexes with contaminants under pH conditions within the range of potable water. In one embodiment natural and synthetic spinels and spinel-like materials are used as the sorbent substance.

The invention discloses an automatic analyzer for an anionic surfactant in water, which comprises an automatic sampling device, a peristaltic pump, a detector and a sample processing assembly, wherein the sample processing assembly comprises a sample filling valve, knotted reactors, a three-way valve, a four-way valve, chemically inert microporous hydrophobic film on-line extraction modules, and a capillary connecting pipe; and one port of the sample filling valve is connected with a flask for carrying current, and the other port is orderly connected with a first knotted reactor, a first chemically inert microporous hydrophobic film on-line extraction module, a second knotted reactor, a second chemically inert microporous hydrophobic film on-line extraction module, the four-way valve, a flow cell, the detector and a computer processing system. The automatic analyzer can continuously and automatically test samples, has high test speed, the frequency of detecting samples of 18 samples/hour, high test sensitivity and good test accuracy, and uses the on-line double extraction modes to have strong interference resistance; and most inorganic ions such as SCN-, CN-, NO3-, Cl-, F-, Br- and the like are not interfered when the concentration is 1,000mg/L.

The invention relates to a method for preparing MQ silicon resin by organic acid catalysis, which is characterized in that four-functional-group monomer and end capping agent that have the mole ratio of 90-30:10-70 are added into a reactor provided with a mechanical stirring and reflex condensing device; then, organic acid catalyst is slowly added, and the dosage of the organic acid catalyst is 0.1-5% of the total weight; the temperature raises to 115DEG C, and the reaction lasts for 10h, so that the liquid or solid MQ silicon resin can be obtained. The method has the advantages that the catalyst contains no inorganic ions; the obtained MQ silicon resin contains lower content inorganic ions; the MQ silicon resin can be used as reinforcing agent of addition type or condensed type silicon rubber and used for encapsulating electronic devices, so as to improve the ageing-resistant performance of the silicon rubber and prolong the service life of encapsulation materials, thus prolonging the service life of the electronic devices.

The invention provides a polymerizable salicylic aldehyde complex containing a quaternary ammonium salt in a molecular structure. The polymerizable salicylic aldehyde complex containing the quaternary ammonium salt can be used for copolymerization reaction on styrene, acrylic ester, acrylonitrile, vinyl acetate or acrylic amide to form series resin with a macromolecular side chain bonded with two sterilizing and antibacterial substances including a salicylic aldehyde complex and the quaternary ammonium salt; and the resin and inorganic ions in seawater are subjected to ion exchange reaction to sequentially release the two sterilizing and antibacterial substances including the salicylic aldehyde complex and the quaternary ammonium salt, so as to generate the effect of preventing pollution on marine organisms and the surface layer self-cleaning effect.

An improved system for large scale production of proteins and/or polypeptides in cell culture, particularly in media characterized by one or more of: i) a cumulative amino acid concentration greater than about 70 mM; ii) a molar cumulative glutamine to cumulative asparagine ratio of less than about 2; iii) a molar cumulative glutamine to cumulative total amino acid ratio of less than about 0.2; iv) a molar cumulative inorganic ion to cumulative total amino acid ratio between about 0.4 to 1; or v) a combined cumulative glutamine and cumulative asparagine concentration between about 16 and 36 mM, is provided. The use of such a system allows high levels of protein production and lessens accumulation of certain undesirable factors such as ammonium and/or lactate. Additionally, culture methods including a temperature shift, typically including a decrease in temperature when the culture has reached about 20-80% of it maximal cell density, are provided. Alternatively or additionally, the present invention provides methods such that, after reaching a peak, lactate and/or ammonium levels in the culture decrease over time.

The invention discloses a soda water beverage and a preparation method thereof. The soda water beverage comprises raw materials in parts by weight added to every 1,000 kg of water as follows: 100-300 g of sodium bicarbonate, 40-120 g of acesulfame, 15-45 g of magnesium sulfate, 1-3 g of potassium chloride and 75-225 g of lemon essence, and the PH value of the soda water beverage is 7.1-8.5. The technological process of the soda water beverage comprises following steps: (1), equipment cleaning and sterilization; (2), raw water treatment; (3), blending; (4), soda water sterilization; (5), bottle and bottle cap disinfection; (6), filling and packaging. The soda water beverage is helpful to relieve symptoms such as indigestion, constipation and the like and is helpful to uric acid excretion, thereby having prevention and treatment functions on hyperuricemia or gout; in hot summer, sodium in the soda water can supplement sodium lost through sweat volatilization, and the soda water beverage is quite popular fashion drink; primary and secondary reverse osmosis devices are adopted for an efficient desalination technology, impurities such as inorganic ions, bacteria, viruses, metal ion organic matters, colloids and the like in raw water can be removed, high-quality highly-pure water is obtained, the operating cost is saved, and environmental protection is facilitated.

Ultrasonic wave with cavitation and magnetic field with scale preventing effect are used together in preventing membrane pollution. The apparatus consists of supersonic wave generator installed inside or outside the membrane module and permanent magnets set on outer wall of the membrane module. Ultrasonic wave produces vibration to prevent colloid particle, bacteria and organic matter from depositing on the membrane and its cavitation produces great amount of bubbles to clean the dirt on the membrane. Magnetic field is utilized to prevent calcium, magnesium and other inorganic ions from depositing on the membrane. Their combination produces excellent effect of preventing and eliminating the membrane pollution. The strengths of the ultrasonic wave and the magnetic field are relatively low and thus there will be no damage to the membrane.

A method of fabricating nanostructure for antireflection and a method of fabricating a photo device integrated with the nanostructure for antireflection are provided. The fabrication of the nanostructure for antireflection includes coating a solution containing a combination of metal ions with organic or inorganic ions on a substrate, sintering the coated solution using an annealing process to grow nanoscale metal particles, and chemically etching the substrate using the metal particles as mask or accelerator to form a subwavelength nanostructure on the surface of the substrate, thereby manufacturing the nanostructure for antireflection without an apparatus requiring a vacuum state using a simple method for a short amount of time to minimize reflection of light at an interface between a semiconductor material and the air, and producing a photo device having good luminous efficiency and performance at low cost in large quantities by applying it to the photo device.

The invention relates to a high-thermal-conductivity environment-friendly type epoxy resin composition and a preparation method thereof. The high-thermal-conductivity environment-friendly type epoxy resin composition is characterized by comprising the following constituents in percentage by weight: 5-10% of epoxy resin, 5-8% of phenolic resin, 70-77% of an inorganic filler, and 3-7% of superfine spherical silicon powder, wherein the epoxy resin composition further comprises one or more of a curing accelerator, a fire retardant, a releasing agent, an inorganic ion capturing agent, a silane coupling agent, a coloring agent and a low-stress modifier. The superfine spherical silicon dioxide powder is added to improve the filling performance of the resin composition, so that the high-thermal-conductivity environment-friendly type epoxy resin composition can meet the requirement that the back thickness of the wholly encapsulated device is less than 0.5 mm, and particularly is suitable for the back thickness of 0.43 mm.