613 results about "Ion content" patented technology

A method for creating and transporting low-energy ions for use in plasma processing of a semiconductor wafer is disclosed. In an exemplary embodiment of the invention, the method includes generating plasma from a gas species to produce a plasma exhaust. The plasma exhaust is then introduced into a processing chamber containing the wafer. The ion content of the plasma exhaust is enhanced by activating a supplemental ion source as the plasma is introduced into the processing chamber, thereby creating a primary plasma discharge therein. Then, the primary plasma discharge is directed into a baffle plate assembly, thereby creating a secondary plasma discharge exiting the baffle plate assembly. The strength of an electric field exerted on ions contained in the secondary plasma discharge is reduced. In so doing, the reduced strength of the electric field causes the ions to bombard the wafer at an energy insufficient to cause damage to semiconductor devices formed on the wafer.

The nanofiltration process is suitable for Mg-Li separation and Li enriching of Li containing bittern or Li containing solution from salt lake to prepare lithium carbonate or lithium chloride with the Li enriching bittern. Nanofiltration membrane is used in separating and enriching lithium from lithium containing bittern, which contains Mg, Ca and other cations and sulfate radical and other anions and has Li ion concentration of 0.1-11.5 g/L and Mg/Li ion weight ratio 1-200, to obtain lithium enriched bittern suitable for preparing lithium carbonate or lithium chloride. The said process is effective, and can obtain lithium enriched bittern with Mg/Li ion weight ratio 0.6-5 and Li ion content of 0.6-20 g/L.

The optical filter of the present invention is provided with a near infrared light absorption layer that contains a component composed of copper ions and a phosphoric ester compound expressed by the following Formula (10), in which the phosphorus atom content in the near infrared light absorption layer is 0.4 to 1.3 mol per mole of copper ions, and the copper ion content in the near infrared light absorption layer is 2 to 60 wt %. Thus keeping the phosphorus atom and copper ion content within specific ranges results in good near infrared light absorption and in improved moisture resistance whereby devitrification caused by whitening is suppressed

A resin composition comprising: (1) 100 parts by weight of an aromatic polycarbonate resin (component A); (2) 0.005 to 0.6 part by weight of a fluorine-containing organic metal salt having a fluoride ion content measured by ion chromatography of 0.2 to 20 ppm in terms of weight (component B); and (3) at least one component selected from the group consisting of a flame retardant (component C), a fatty acid ester (component D), an ultraviolet light absorber (component E), polytetrafluoroethylene having fibril formability (component F), a filler (component G), a silicate mineral (component H) and a titanium dioxide pigment (component I). A process of manufacturing the resin compositon and a method of preventing the melt dripping during combustion of the resin composition. The flame retardancy of the above aromatic polycarbonate resin composition comprising the fluorine-containing organic metal salt compound is improved.

The invention belongs to the technical field of tunnel construction, and relates to a low-alkaline liquid accelerating agent and a preparation method thereof. For the low-alkaline liquid accelerating agent, aluminium sulfate solution is neutralized with sodium aluminate solution to produce aluminium hydroxide collosol, and then aluminium sulfate and aluminium hydroxide collosol conduct polymerization reaction in an original solution system to produce polymerized aluminium sulfate, so that the accelerating agent solution has higher aluminium ion content and liquid stability; the low-alkaline liquid accelerating agent is prepared by aluminium sulfate, sodium aluminate and stabilizing agent; and the mass percentage of the components are as follows: 40 to 60 percent of aluminium sulfate, 6 to12 percent of sodium aluminate, 0 to 0.2 percent of stabilizing agent, and the balance of water. The invention has the following positive effects to sprayed concrete: initial set of common cement can be realized in five minutes and final set of the common cement can be realized in eight minutes under lower doping amount; the 1d strength of cement mortar can reach more than 12MPa, and the 28d compression strength ratio of the cement mortar is more than 100 percent; and the invention has good adaptability to cement of different varieties.

The invention pertains to an organic light emitting diode (LED) comprising a transparent electrode, superposed by a layer of a conductive transparent polymer (CTP), superposed by a layer of a light emitting polymer, oligomer, or low molecular weight compound superposed by a metal cathode, characterized in that the CTP layer has a sulfate ion content of less than 7,500 ppm, and a metal ion content of more than 0.04 mmoles/g.

The invention relates to an anti-incrustation corrosion inhibitor for a circulating water system with a high concentration time and a high chloride ion content. The anti-incrustation corrosion inhibitor comprises the following components in parts by weight: 1-100 parts of phosphoric acid and salt thereof, 1-500 parts of organic phosphonic acid and salt thereof, 5-1,000 parts of acrylic copolymer, 1-20 parts of zinc salt, 10-200 parts of anode corrosion inhibitor and 0.5-5 parts of imidazoline non-ferrous metal corrosion inhibitor. Compared with the prior art, the invention can effectively suppress under-deposit corrosion and point corrosion caused by low pH value and high chloride ion content.

The method for preparing high-activity titanium dioxide film self-cleaning glass material, applicable to the fields of building glass, car glass and optical glass, uses general glass as base body forcoating film and includes the following steps: cleaning glass surface, drying, sweeping with nitrogen gas, sol preparation, impregnating and coating, drying, crystallization heat treatment, pickling and surface after-treatment. The sodium ion content of titanium dioxide film can be controlled in 0.3%, carbon content of film surface is reduced, surface hydroxy content is increased and the optical catalytic activity of glass can be greatly raised. Said invention adopts line production process, and can effectively control product quality.

Provided are a method for preparing a granular animal feed additive and the granular animal feed additive prepared by the method. The method includes: filtering, with a membrane filter, a fermentation broth obtained from a lysine producing microorganism cultured in a lysine producing condition to obtain a lysine-containing filtrate and a microorganism-containing sludge; drying the filtrate to obtain a concentrate with a total solid content of 48 to 52 wt %; granule-drying the concentrate at a temperature of 50° C. to 60° C. to obtain granules; and coating the granules with a coating agent containing one or more selected from the group consisting of the sludge, a diluent or a free lysine as a lysine content adjustor, and a moisture prevention agent, to obtain lysine granules having the following properties:

A chemical mechanical polishing aqueous dispersion including (A) silica particles, and (B1) an organic acid, the sodium content, the potassium content, and the ammonium ion content of the silica particles (A) determined by ICP atomic emission spectrometry, ICP mass spectrometry, or ammonium ion quantitative analysis using ion chromatography having a relationship in which the sodium content is 5 to 500 ppm and at least one of the potassium content and the ammonium ion content is 100 to 20,000 ppm.

This invention provides a method for preparing 02 structure laminated lithium manganate positive material (Lix [Mn1-yMy]O2), M is ions of Co or Ni, which applies a method for citric acid colloidal sol-gel to prepare a precursor with high content of Na ions of p2 structure laminated Nax[Mn1-yMy] O2 gets the product by the exchange reaction of molten salt ions. The advantage is that said positive material does not turn to the structure of spinel while charging and discharging so as to have good electrochemical circulation performance.

The invention relates to a method for measuring chloride ion content in high-performance concrete, comprising the steps: (1) free chloride ions and total chloride ions in the high-performance concrete can be extracted by a normal temperature soaking and oscillating method; (2) an improved Volhard chemical titration method is utilized to respectively measure the chloride ion content in the filtrate of the free chloride ions and the total chloride ions obtained in the step (1). The method has the advantages of simple operation, complete extraction, stable result and convenient operation, so as to meet the content measuring requirements of the solution with low concentration chloride ion, and be widely applied to the durability analysis and service life study of the high-performance concrete structure in the chloride environments such as oceans, deicing salt, etc.

The invention discloses high-purity low-radioactivity spherical silicon micropowder. In the silicon micropowder, the content of SiO2 is not lower than 99.90 percent, the content of radioelement U is less than or equal to 1*10g/g, sphericization ratio is between 90 and 100 percent, and non-crystalline ratio is between 99 and 100 percent. The method for preparing the silicon micropowder comprises the following steps: preparing stable silica sol which has purity not lower than 99.90 percent and the ion content of an arbitrary impurity less than or equal to 5*10g/g by a silicon source with the content of radioelement U being less than or equal to 1*10g/g; concentrating the silica sol to lead the solid content of the silica sol to be between 41 and 70 percent; granulating the concentrated silica sol to lead grain diameter of the silica sol to be between 0.5 and 60 mu meters; roasting the granulated silicon oxide micropowder at a temperature of between 500 and 1,100 DEG C; and carrying out sphericization treatment on the micropowder in a flame burner and a sphericizing furnace, and classifying and collecting the micropowder after cooling to obtain the high-purity low-radioactivity spherical silicon micropowder. The spherical silicon micropowder of the invention can meet the requirement of a large-scale integrated circuit on capsulation packing, and the invention has simple process, low cost, simple required equipment, and is applicable to industrial production.

The invention provides an acidic silica sol, which is characterized in that: it comprises water and silicon dioxide colloids with a nanometer or submicron particle size dispersed in water and made of silicon powder as a raw material, and the pH value of the sol is 1.5~3.5, copper ion content ≤50ppb. The sol has the characteristics of high stability and high purity, and can be applied to chemical mechanical polishing (CMP) in the electronics industry, semiconductors, hard disks, compound crystals, precision optical devices, etc., because of its low copper content, it has advantages in the field of semiconductor polishing. The present invention also provides the preparation method and application of the above-mentioned acidic silica sol.

An active material for positive electrode for a non-aqueous electrolyte secondary battery comprises a lithium-metal composite oxide that is expressed by the general formula of Li_x(Ni_1-yCo_y)_1-zM_zO₂ (where 0.98≦x≦1.10, 0.05≦y≦0.4, 0.01≦z≦0.2, and where M is at least one metal element selected from the group of Al, Mg, Mn, Ti, Fe, Cu, Zn and Ga), and where the SO₄ ion content is in the range from 0.4 weight % to 2.5 weight %, and the occupancy rate of lithium found from the X-ray diffraction chart and using Rietveld analysis is 98% or greater, and the carbon amount measured by way of the high frequency heating-infrared adsorption method is 0.12 weight % or less, and that the Karl Fischer water content due to heating at 180° C. be 0.2 weight % or less.

The invention provides a red luminescent carbon quantum dot material, a preparation method and application thereof. The developed red carbon quantum dot can effectively detect trace Cu<2+> ions in a solution. The carbon quantum dot provided by the invention is prepared by: taking a mixed solution of dimethyl sulfoxide and dimethylformamide as the solvent, adopting citric acid and urea as the reaction precursor, and carrying out solvothermal reaction. The red luminescent carbon quantum dot provided by the invention can be used for detection of Cu<2+> ion content in a solution, and the detection limit can be as low as 40nM. The method provided by the invention has the advantages of simple preparation technology, low cost, high yield and easy enlarged production, etc. The obtained product has good dispersion, uniform shape and narrow particle size distribution, also has high efficiency red light emission characteristics, and is expected to be widely applied in the field of high sensitivity heavy metal detection in organisms.

The invention discloses a method for preparing a hyperbranched ionic amide type polymer by inverse emulsion polymerization. The method comprises the following steps: firstly polymerizing ionic monomers or firstly copolymerizing the ionic monomers with a part of amide type monomers through the inverse emulsion polymerization of reversible addition-fragmentation chain transfer (RAFT) by adopting an operation process of adding a follow-up phase under the action of a surfactant, then adding the rest of amide type monomers for chain extension, as well as diene type monomers and an RAFT chain transfer agent so as to prepare the hyperbranched ionic amide type polymer, wherein the outer tail end of a branched chain is an ionic monomer block or a copolymer block with high ion content. The hyperbranched ionic amide type polymer obtained by the method disclosed by the invention has good flocculation effect and excellent water dissolubility.

The invention relates to a method for recovering the valuable metals in a waste nickel-cobalt-manganese-lithium ion battery by an ion exchange method, which comprises the following steps of disassembling, discharging and crushing the waste nickel-cobalt-manganese-lithium ion battery, leaching, replacing the leachate with nickel powder or cobalt powder to remove the copper, and hydrolyzing with a valuable metal alkali solution as a neutralizer to remove the iron and aluminum; regenerating the chelating resin with a lithium hydroxide solution, adsorbing the nickel, cobalt and manganese in the impurity-removed solution, and backwashing with sulfuric acid to obtain a nickel-cobalt-manganese mixed solution; and recovering the lithium in the liquid after resin adsorption in the form of lithium hydroxide. According to the method, the stripping and leaching of the waste nickel cobalt lithium manganate ion battery are completed in one step, the impurity elements are not introduced during the leachate impurity removal and valuable metal separation and extraction process, the lithium hydroxide used for ion exchange resin is regenerated via the lithium hydroxide, at the same time, the nickel-cobalt-manganese is absorbed, so that the lithium is prevented from being adsorbed and entering a nickel, cobalt and manganese solution to be lost, and the lithium recovery is prevented from being influenced due to the high sodium ion content in the solution with the sodium hydroxide. According to the present invention, the recovery rate of nickel, cobalt and manganese reaches 98% or above, the recovery rate of lithium reaches 90% or above, the technological process is short, the equipment is few, and the cost is low.

The invention discloses a method for hydrolyzing dimethyl dichlorosilane with concentrated acid. The method comprises the following steps: mixing the dimethyl dichlorosilane with hydrochloric acid to carry out hydrolytic reaction; mixing the obtained reaction liquid with a solvent; finally, performing separating operation on the obtained mixed solution to obtain hydrolysis product and hydrogen chloride gas. Through the adoption of the method, the content of cyclic polysiloxane in hydrolysate obtained from the dimethyl dichlorosilane through the concentrated acid hydrolyzing method is effectively increased; the design is reasonable, hydrolysate with low chlorine ion content can be obtained in no need of multi-stage phase separation procedures, and the hydrochloric acid and solvent obtained after separation can be recycled, so that the resource use ratio is improved, and the production cost is saved.

The invention relates to food additive silica gel and a production process of the food additive silica gel, belonging to the technical fields of food additive silica gel and the production process of the food additive silica gel. The food additive silica gel is silica gel with a three-dimensional spatial reticular structure and an X-ray amorphous material, with the soluble iron ion content being less than 2ppm, the granularity median value being controlled to 14-16mum, granules less than 10mum being controlled to below 15%, the specific surface area being greater than 450 m<2>/g, the pore volume being greater than 1.2ml/g, and the average pore diameter being equal to or greater than 10nm. The production process of the food additive silica gel comprises the steps of: (1) raw material preparation; (2) reaction to prepare gel; (3) aging to remove iron and enhance activity; (4) washing; (5) instantaneous drying; and (6) grinding and size grading. The food additive silica gel provided by the invented is reasonable in granularity median value control and large in specific surface area and pore volume, has the soluble iron content being less than 2ppm, and can effectively adsorb proteins easy to haze, effectively improve the quality and the shelf life of beer as the effective grain size distribution in the silica gel is concentrated and the content of the granules less than 10mum is low, and ensure the filtration velocity of the beer so as not to affect the production capacity of the beer.

The invention discloses an embedded-type sensor for detecting concrete chloride ion content and a preparation method thereof, relating to a sensor and a preparation method. The invention solves the problems that the existing sensor can not detect concrete chloride ion content in real time and has larger voltage drop, poor sturdiness and poor stability, and the sensor manufactured with the existing method can not continuously detect changed chloride ion concentration and has inaccurate detection result. A micro-expansion fiber cement semipermeable membrane layer, an alkaline gel layer and a manganese dioxide layer are successively arranged in a sensor barrel from bottom to top. The method is as follows: successively arranging the manufactured micro-expansion fiber cement semipermeable membrane layer, the alkaline gel layer and the manganese dioxide layer from bottom to top in the sensor barrel; and dipping the lower part of the manufactured sensor into simulative concrete pore fluid. The sensor of the invention can detect concrete chloride ion content in real time, has favourable sturdiness and favourable long-term stability; the sensor manufactured by the invention can continuously detect changed chloride ion concentration and has accurate detection result.

The invention discloses an immunological method for quickly detecting heavy metal lead ions and a kit. The immunological method is an indirect enzyme-linked immunological technology, and comprises the following steps of: coating lead ions in a lead-free antigen combined sample through artificially synthesized antigens to form lead-containing antigens; reacting the lead-containing antigens and anti-lead monoclonal antibodies to form an antigen-lead-antibody structure chain; reacting the structure chain and enzyme labeled secondary antibodies to form an antigen-lead-antibody-secondary antibody structure chain; and performing color development reaction, and judging the lead ion content of the detected sample according to the color development degree. The kit for implementing the immunological method comprises an artificial antigen coated and closed enzyme-linked immunosorbent assay (ELISA) plate and the anti-lead monoclonal antibodies, wherein the artificial antigen means CHX-A'-DTPA-OVA; and the anti-lead monoclonal antibodies are generated by monoclonal cell strains with collection date of August 25th, 2010, collection number of CCTCC C201084 and name of 6H8/4F7. The indirect enzyme-linked immunological detection technology is applied in small molecular detection for the first time, and the detection effect is good.