67results about How to "Prevent neutralization" patented technology

The invention discloses a phosphogypsum-base wall material for a cast-in-place wall. The invention is characterized in that the material is prepared from the following raw materials in percentage by weight: 60-80% of beta-phosphogypsum, 10-20% of mineral admixture, 5-25% of cement, 0.25-0.5% of retarder, 0.05-0.15% of defoaming agent, 0.05-0.2% of thickener and 0.5-1% of water reducer. The raw materials are uniformly mixed to obtain the phosphogypsum-base cast-in-place wall material; and the material and water are mixed uniformly in a water/material ratio of 0.4-0.5 to obtain a slurry, and the slurry is cast in place and molded. The phosphogypsum-base wall material has the advantages of controllable setting time, low flowing loss rate, high utilization ratio of solid waste, low material cost and high strength, is convenient for construction, and can be widely used for frame-structure infilled internal walls of commercial and civil buildings.

The invention belongs to the technical field of anticorrosive materials and discloses a transparent protective coat for concrete. According to a three-layer matched scheme of a combined action principle of physical shielding and chemical sealing, the transparent protective coat for concrete comprises a base coat, a floating coat and a topcoat, wherein the base coat is alkyl alkoxy silane, the floating coat is a cationic acrylic polymer emulsion film-forming system; the topcoat is a water-based fluorocarbon resin and polyurethane associative thickener system with pH value of 8-9; the content of the water-based fluorocarbon resin is not less than 20%; the minimum film-forming temperature is not less than 27 DEG C. The transparent protective coat for the concrete has high permeability and excellent sealing property for the concrete, is simple and convenient to construct, transparent in coating and excellent in stain resistance, avoids water dampness and discoloration of the concrete, inhibits nonuniform absorption of the concrete, effectively prevents the concrete surface from blackening, keeps the natural surface effect of the concrete, and is suitable for the protection and application field of various reinforced concrete structures.

The invention discloses a blue copper peptide repairing mask and a preparation method. Essence is prepared from a moisturizer, a thickening agent, a penetration enhancer, a skin conditioner and water; the thickening agent is prepared from the following components in percentages by mass: 0.1 to 0.5 percent of hydrolyzed sclerotium gum and 0.10 to 0.30 percent of sodium hyaluronate; the penetration enhancer is prepared from one or more of 0.5 to 3 percent of glycerol glucoside, 0.02 to 0.20 percent of sodium polyglutamate and 0.001 to 0.05 percent of polyquaternium-51; and the skin conditioner comprises 0.1 to 0.5 percent of blue copper peptide. The blue copper peptide repairing mask disclosed by the invention has the characteristics of high stability and good permeability of the blue copper peptide.

The present invention belongs to the field of surface treating technology, and discloses one kind of concrete protecting primer, which consists of organosilicon water repellent 100-150 weight portions, pure water 300-400 weight portions, and preservative 1-3 weight portions. The concrete protecting primer is alkali and chlorine ion resistant and can prevent alkali and chlorine ion from infiltrating to inside concrete to cause concrete neutralizing. It has high permeability to concrete and can permeate to inside concrete and has no influence on the outer look and permeating performance of concrete.

The invention relates to the technical field of particle beam generation and neutralization, and particularly provides a radio frequency particle source. The radio frequency particle source comprisesa radio frequency signal source, an impedance matching network, a radio frequency coil, a radio frequency discharge cavity and a grid mesh system, wherein the grid mesh system comprises an inner layergrid mesh and an outer layer grid mesh; through voltage adjustment of the inner-layer grid mesh and the outer-layer grid mesh, ion beams and electron beams can be generated respectively, or the electron beams and the ion beams are generated simultaneously and neutralized to form neutral particle beams; and meanwhile, the beam positive and negative charge density and the particle movement speed are controlled and extracted by adjusting the grid distance and the grid electrode voltage, so that the beam particle density, speed and charge are adjustable. Besides, an external cathode and a corresponding electrode which need to be used by a traditional ion source for neutralizing the particle beam are not needed, the complexity of radio frequency ion source equipment is reduced to a great extent, the influence of high temperature of the cathode and sputtering on the service life of the ion source is avoided, and the stability of the beam generation effect is guaranteed.

The invention discloses a ciprofloxacin effervescent tablet for control of a silkworm bacterial disease and a preparation method. The effervescent tablet is used for controlling the silkworm bacterial disease and comprises the following components: ciprofloxacin (comprising ciprofloxacin hydrochloride or ciprofloxacin lactate), an acid source disintegrating agent, an alkali source disintegrating agent and an adhesion agent. Meanwhile, the invention further discloses the preparation method of the effervescent tablet. The preparation method disclosed by the invention is simple in process and low in cost; the prepared effervescent tablet is accurate in dosage and convenient to use, and capable of being applied to the control of the silkworm diseases.

A fuel battery system of the present invention includes: an alkaline fuel battery; a fuel supply device for supplying a fuel to an anode of the fuel battery; an oxidizing agent supply device for supplying an oxidizing agent to a cathode of the fuel battery; a liquid supply device which supplies a liquid to the cathode; a valve which switches between fluids to be supplied to the cathode; and a control device which controls the switching of the valve. The fuel battery system suppresses the neutralization of an anion-exchange electrolyte due to carbon dioxide in the air, by supplying the liquid from the liquid supply device to the cathode and making the cathode in the state of being immersed in the liquid when the fuel battery stops power generation.

The invention relates to the technical field of agriculture, specifically to a preparation method of an aqueous fertilizer for improving the polysaccharide content of a mango. The preparation method comprises: step 1, water-logged compost, which includes putting raw materials comprising, by mass, 1-5% of bacillus globisporus, 1-6% of pseudomonas, 1-6% of acinetobacter junii, 5-12% of a grape waterextract, 6-13% of an amaranth water extract, 5-15% of rotten wood, 10-15% of chicken manure, 10-18% of sorghum straw, 15-20% of phosphate tailing, and 15-25% of corn straw into a water-logged composttank for water-logged compost for 5-10 days to obtain a fermented object; and step 2, preparing an organic aqueous fertilizer by mixing the fermented object in the water-logged compost tank with water and a nitrogenous fertilizer. The method is simple and easy to operate, and is special for improving the absorption and utilization rate of a phosphorus element. It is found through research that the organic aqueous fertilizer can improve the soluble sugar content of a mango, improves the quality of mango, and has a high economic value.

The invention discloses a method for recovering hydrochloric acid from germanium concentrate distillation waste liquid. The method comprises the following steps of primarily separating hydrochloric acid and salt solution in the germanium concentrate distillation waste liquid through evaporation and concentration; performing cyclone concentration on the concentrated salt solution; then, performingcentrifuge dripping to obtain crystal products of zinc chloride, ferric chloride, lead chloride and the like; feeding the crystal products into a zinc melting flow process smoking furnace to recover lead and zinc; after condensing diluted acid subjected to evaporation concentration is collected through a collecting tank, conveying the condensing diluted acid into a desorption tower through a hydrochloric acid conveying pump to be mixed with a certain concentration of calcium chloride solution; performing continuous contact reverse flow mass transfer on the high-temperature chlorine hydride gasheated through a reboiler, water vapor and calcium chloride so that the constant boiling point of dilute hydrochloric acid can be broken and the chlorine hydride content of the rise gas is continuously increased; after the cooling by cooling water, returning hydrochloric acid with the concentration being 30 percent or higher subjected to two-stage falling film absorption into the germanium concentrate for distillation and use; conveying the desorption tower diluted calcium chloride solution into a concentration tower to be subjected to evaporation concentration; then, conveying the solution to the desorption tower for cyclic use. The method for recovering hydrochloric acid from the germanium concentrate distillation waste liquid provided by the invention has the advantages that cleannessand high efficiency are realized; the outsourcing hydrochloric acid consumption in the distillation process is reduced; the production cost is reduced.

The invention discloses a peach-fragrance tea. The peach-fragrance tea is characterized by comprising, by weight, 50 to 65% of peach, 30 to 45% of tea and 1 to 5% of an aromatic, wherein the peach is a dried peach prepared by drying a fresh peach and then neutralizing tartaric acid, the particle sizes of the peach and the tea are controlled to be in a range of 10 to 20 meshes, the tea is green tea, black tea, oolong tea, broadleaf holly leaf or other finished tea, and the aromatic is plant fruit or dried flowers capable of giving off a variety of fragrance. A making method for the peach-fragrance tea comprises the following steps: separately drying and crushing the peach and the tea and then successively carrying out screening, winnowing and grading so as to obtain fine-grain peach and tea with particle sizes of 10 to 20 meshes; then mixing the fine-grain peach and tea according to the above-mentioned weight percentages and then adding the aromatic; scenting the obtained mixture for 30 to 90 min; and then packaging the scented mixture so as to obtain the finished peach-fragrance tea.

The invention belongs to the field of disinfection, epidemic prevention and healthy air, and particularly relates to a nano water ion group generator. The generator comprises at least one pair of P/N type semiconductor crystal grains, wherein the paired P/N type semiconductor crystal grains are composed of P type semiconductor crystal grains and N type semiconductor crystal grains, one end of each P/N type semiconductor crystal grain is a refrigeration end, and the other end of each P/N type semiconductor crystal grain is a heating end; a heat absorption piece which is used for obtaining the cold energy generated by the refrigeration end and transmitting the cold energy to the blocking piece; a blocking piece which is used for conducting the cooling capacity obtained by the heat absorption piece so as to obtain condensate water or air with high relative humidity; an ionization piece which is arranged on one side of the blocking piece to absorb, gather or accumulate moisture in cold energy, condensate water or high-relative-humidity air, is electrically coupled to the high-voltage power supply and is used for loading a high-voltage electric field so as to ionize air and moisture around the ionization piece under the action of an electron avalanche effect, and obtain at least one nano-particle-size substance of charged particles and oxygen-containing free radicals.

The invention discloses a method and a device for preparing modified meta-aramid fiber through continuous polymerization-dry-wet spinning. The method comprises the following steps that (1), a DMAc mixed solution of m-phenylenediamine and a copolymerized diamine monomer is prepared by using a cosolvent; (2), the isophthaloyl dichloride melt is mixed with a DMAc mixed solution of m-phenylenediamine and a copolymerized diamine monomer, and pre-polycondensation and polycondensation are carried out to obtain a modified meta-aramid resin solution; and (3), auxiliaries are added into the modified meta-aramid resin solution, filtering, defoaming, and spinning are carried out by a dry-wet method to obtain modified meta-aramid fibers. A pre-polymerization system of the continuous polymerization-dry-wet spinning device comprises a micro-mixer and a micro-reactor which are connected in sequence, and a micro-channel of the micro-reactor is designed to be heart-shaped; and the polycondensation system is a multi-stage microscrew combination. The problems in the preparation process of the meta-position aramid fiber are comprehensively solved, the obtained product is complete in structure, excellent in performance, stable and controllable, and continuous and efficient production can be achieved.

A method for manufacturing a semiconductor memory device including following steps is provided. A substrate having a first region, a second region, and a third region is provided. A first stack structure is formed on the first region. A second stack structure is formed on the second region. A third stack structure is formed on the third region. A first mask layer is formed on the substrate to cover the third stack structure. A first ion implantation process is performed, so that a second floating gate and a second control gate in the second stack structure are changed to a first conductive type. A second mask layer formed on the substrate to cover the first and second stack structures. A second ion implantation process is performed, so that a third floating gate and a third control gate in the third stack structure are changed as a second conductive type.

The invention relates to an electrolysis method and device for a self-cleaning carbon electrode, and belongs to the technical field of electrochemistry electrolysis. A periodic swerving electrolysis device is adopted and comprises an electrolytic cell, a periodic swerving controller and a direct-current power supply system, wherein the positive electrode and the negative electrode of the electrolytic cell are carbon electrodes, and the periodic swerving controller can be used for realizing the circular operations of electrifying, switching off, carrying out swerving electrification and switching off. The electrolysis method comprises the following steps of: 1) introducing materials into the electrolytic cell, wherein the electric conductivity of electrolysis material is more than 0.1S/m; 2) regulating the periodic swerving controller; and 3) electrifying to carry out electrolytic oxidation and reduction reaction. According to the method and the device disclosed by the invention, the carbon electrode can be cleaned by self in the electrolytic oxidation and reduction process, concentration polarization is lowered, the electrolysis efficiency is improved, the electrolysis energy consumption is lowered, and industrial implementation is easily carried out.

The invention belongs to the technical field of environment restoration and relates to an electric restoration method and device utilizing a salt bridge to improve soil organic pollutant removal. The electric restoration method is characterized in that a cathode polluted soil electric restoration zone and an anode polluted soil electric restoration zone are constructed in polluted soil to be treated, an anode is arranged in the anode polluted soil electric restoration zone, a cathode is arranged in the cathode polluted soil electric restoration zone, the anode is connected to the cathode by a lead, the anode and cathode apply an electric field and realizes switching/non-switching of electrode polarity, and the anode polluted soil electric restoration zone is connected to the cathode polluted soil electric restoration zone by a salt bridge. The salt bridge separates the anode polluted soil electric restoration zone and the cathode polluted soil electric restoration zone, is conducive to anode zone acidic environment keeping and improves removal efficiency of the organic pollutants in the anode polluted soil electric restoration zone. Through a cathode-anode polarity switching mode, the total removal efficiency of the system is improved.

The invention relates to the technical field of agriculture, in particular to a method for preparing an organic liquid fertilizer for tomatoes. The method includes a first step of performing water-logged composting: mixing raw materials with the following mass percentages into a composting pond for composting, wherein the composting pond is rectangular and the bottom of the composting pond and theperiphery are arranged in a cut-through mode to form a cavity, and the top of the cavity is provided with an air adding port and an ignition device; placing the raw materials in the composting pond,leading biogas into the air adding port, sealing and covering the composting pond, starting the ignition device to ignite biogas in the cavity; after the biogas is burned up, continuing to perform composting for 5-10 d, and obtaining a leavening; and a second step of preparing the organic liquid fertilizer: mixing the leavening in the composting pond with water and nitrogen fertilizer. The methodis simple and feasible, and improves absorption and utilization rate of phosphorus element specially, and through researches, it is found that the organic liquid fertilizer can further improve contentof soluble sugar in the tomatoes, improve tomato quality and have high economic value.

The invention discloses a preparation method for potassium nitrate, which comprises the following steps: A, heating a nitrate till a temperature of not higher than 300 DEG C for melting to obtain a first melt; B, crushing and adding potassium-rich rock to the first melt, continuing heating to a temperature of not higher than 600 DEG C, and preserving heat for 12 h to 36 h to obtain a second melt, wherein the potassium-rich rock is a silicate mineral having not lower than 8% of K2O by mass fraction calculated by K2O; C, feeding water into the second melt to obtain a mixed system after the second melt is cooled to a temperature ranging from 100 to 120 DEG C, and preserving heat of the mixed system at a temperature ranging from 50 to 90 DEG C for 6 h to 48 h, and carrying out solid-liquid separation to obtain a first filter residue and a first filtrate; D, concentrating and cooling the first filtrate to separate out potassium nitrate. According to the preparation method for potassium nitrate of the invention, the aqueous solution of potassium nitrate can be obtained through two times of leaching with the potassium-rich rock as the raw material, and is simple in process, low in energy consumption, and green and environmentally friendly.