69results about How to "Fast neutralization" patented technology

The present process provides improved means for adsorbing components and for regeneration of a composite adsorption carbon material (CRAC) used for effecting the desired separation using an electrochemical process under conditions wherein the specific volumetric electric conductivity of the CRAC differs from that of the electrolyte employed by not more than one order of magnitude, a specific current density of at least 0.01 ampere per gram of CRAC is employed, and a high degree of regeneration of CRAC from polar and non-polar substances and heavy metal ions is obtained, as well as improved adsorption.

Methods of thrombolysis that allow the use of a fibrinolytic composition comprising reversibly inactivated acidified plasmin and the localized delivery of the plasmin to a vascular thrombotic occlusion are disclosed. Further disclosed is a method for administering a therapeutic dose of a fibrinolytic composition substantially free of plasminogen activator to a human or animal having a vascular thrombotic occlusion. The fibrinolytic composition includes a reversibly inactivated acidified plasmin substantially free of plasminogen activator. Intravascular catheter delivery of the fibrinolytic composition directly into or in the immediate vicinity of the thrombus is disclosed to minimize the systemic degradation of fibrin while retaining the maximum plasmin activity against the thrombus. The method is applicable to the dissolution of thrombi in artificial devices, e.g., hemodialysis grafts.

Nanoparticle-amphiphilic polymer complexes for nucleic acid delivery and real-time imaging.

An electrical ionizer comprising a fan (5) for producing a laminar flow of air; a positive ion emitter (6b) for ejecting positive ions into the flow of air; a negative ion emitter (6a) for ejecting negative ions into the flow of air; a positive voltage supply (27) to the positive ion emitter; a negative voltage supply (28) to the negative ion emitter; and a microprocessor (30) for controlling the positive and negative voltages to obtain a desired ion balance in the flow of air. The fan (5) is a crossflow fan, resulting in a highly uniform and laminar beam of air along the entire length of the fan, with reduced gaps in the air flow and consistent velocity of air, improving ion balance. The use of a crossflow fan also enables the operating mechanism to be contained within a simple “teardrop” profile, and for operative parts of the device, for example the motor, the bearings, and electronics such as printed circuit boards to be housed outside the air flow, thereby eliminating a possible source of contamination of the air flow. For a comparable size of ionizer enclosure, approximately twice the mass flow, at higher velocities, can be generated as a similar conventional device using axial fans, and at reduced noise levels.

The invention relates to the technical field of an organic silicon industry and provides a preparation method of low-polymerization degree hydroxyl-terminated fluorosilicone oil. The preparation method solves the problem that the existing preparation technology of low-polymerization degree hydroxyl-terminated fluorosilicone oil produces a complex mixture of a linear polymer and a cyclic siloxane. The low-polymerization degree hydroxyl-terminated fluorosilicone oil is a hydroxyl-terminated 3,3,3-trifluoropropylmethylsiloxane oligomer. The low-polymerization degree hydroxyl-terminated fluorosilicone oil obtained by the preparation method has an average polymerization degree of 1 to 5, high hydroxyl content, high purity and very low cyclic siloxane content, wherein the lowest cyclic siloxane content is 0.

The invention relates to a device of neutralizing treatment of chlorine-containing gas, which is simple and economic, and can be used for the neutralizing treatment of the chlorine-containing gas in small flow rate(less than or equal to 1 m3/h). The device comprises conveying equipment and neutralizing treatment equipment, wherein a gas output end of the conveying equipment is connected to the neutralizing treatment equipment; and the neutralizing treatment equipment comprises a container and a gas conveying tube, one end of the gas conveying tube is connected with the gas output end of the conveying equipment, the other end of the gas conveying tube is inserted to the bottom part of the container, the gas conveying tube is in sealed connection with the container, the middle part of the container is provided with sponge-shaped dividing plates by which the container is divided into an upper part and a lower part. The device has the advantages that: the neutralizing treatment of the chlorine-containing gas in small flow rate can be safely and continuously performed; the neutral reaction is performed more fully, and the effect is better; and after the chlorine-containing gas in small flow rate is treated by the device, the content of C12 in exhaust gases is less than 1mg/m3 or 0.3mmp, and the emission meets the standard.

The invention discloses a green environment-friendly fabric after-finishing neutralizer, a preparation method and an application thereof. Each 100 parts by weight of green environment-friendly fabric after-finishing neutralizer comprises the following components in parts by weight: 5.0-85.0 parts of concentrated sulfuric acid, 5.0-75.0 parts of urea and 0-50.0 parts of soft water. The preparation method comprises the following steps: injecting the concentrated sulfuric acid into a ceramic reactor or a glass reactor with a jacket circulating cooling water device; then, slowly adding the urea; starting the circulating cooling water device for cooling; controlling the mixture temperature not to exceed 100 DEG C; slowly adding the soft water into the reactor after the urea is added; controlling the mixture temperature not to exceed 100 DEG C; stopping cooling after all the materials are added; and continuously stirring for 3-10 hours. The invention is used for removing sodium hydroxide on fabric cellulose fiber, and has the advantages of no need of subsequent cleaning, high neutralizing speed, good fiber permeating effect, safety, high efficiency and the like.

The invention relates to a process for producing H acid by recycling alkali fusion mother liquor, and belongs to the technical field of preparation for the H acid. According to the invention, sulfiteis used to replace potassium hydroxide or sodium hydroxide and is used as a neutralization solution of a denitrification reaction solution, and can be continuously recycled in the process of preparingthe H acid, so that the use amount of potassium hydroxide of which the concentration is 48% is reduced from 11 tons of the original process to less than 5 tons, and the use amount of sodium hydroxideof which the concentration is 48% is reduced from 8 tons originally to less than 3.5 tons, so that the consumption of potassium hydroxide or sodium hydroxide is greatly lowered to effectively lower the production cost of the product.

The invention discloses a novel treatment device for classifying and recycling chemical waste liquid. The novel treatment device comprises a pre-discharging tank, a waste acid storage tank, a waste alkali storage tank, a neutralization treatment tank and a recycling tank, wherein a waste liquid inlet is formed in the top of the pre-discharging tank; a filtering plate is arranged in the pre-discharging tank; the bottom of the side wall of the pre-discharging tank is in through connection with a waste liquid discharging pipe; a liquid outlet end of the waste liquid discharging pipe is connectedwith the top of the neutralization treatment tank; a driving motor is arranged at the upper end of the neutralization treatment tank and is connected with a stirring shaft arranged in the neutralization treatment tank; the waste acid storage tank and the waste alkali storage tank are symmetrically arranged above the neutralization treatment tank; a filter screen is arranged in each of the waste acid storage tank and the waste alkali storage tank; the bottoms of the side walls of the waste acid storage tank and the waste alkali storage tank are respectively connected with a waste acid discharging pipe and a waste alkali discharging pipe; a liquid outlet end of each of the waste acid discharging pipe and the waste alkali discharging pipe is connected with an atomization nozzle; the recyclingtank is arranged under the neutralization treatment tank. The novel treatment device for classifying and recycling the chemical waste liquid is simple in structure, convenient to operate and excellent in effect of treating waste acid and waste alkali.

An autonomous anti-pollution liquid container for isotope analysis of earth science area, consisting of an outer protective sleeve (1), a liquid storage main body part (2), a stabilizer storage mechanism (3), a main body base part (4), a control display part (5), a main body inner cover mechanism (6) and a neutralizer storage and releasing mechanism (7). The autonomous anti-pollution liquid container for isotope analysing of earth science area has multiple functions of heating, refrigerating, heat preservation and the like, can monitor temperature and liquid amount in real time, and can autonomously operate to quickly neutralize and scrap a hazardous chemical agent in an emergency, thereby avoiding leakage of a hazardous article and environmental pollution, and making a logistics process safe and reliable.

The invention belongs to the technical field of mica processing and relates to a rapid neutralizer for atomizing and spraying a titaniferous solution in a mica coating operation. The rapid neutralizer comprises a reaction kettle with a stirring mechanism, wherein a spraying tray is fixed at the bottom of the reaction kettle; spraying holes are densely distributed in the lower surface of the spraying tray; the spraying tray is connected with a gas-liquid mixer and the gas-liquid mixer is positioned outside the reaction kettle; the gas-liquid mixer is also connected with a liquid feeding component and a gas feeding component. According to the rapid neutralizer disclosed by the invention, during acid-base neutralization, atomized liquid can be formed and uniformly enters the reaction kettle, so that acid and alkali are rapidly and uniformly mixed with a reaction solution, and further rapid neutralization is realized.

A decontaminant composition comprising a peroxide; an organic co-solvent; an amine, which in reaction with the peroxide is a source of a perhydrolysis species; a phase transfer catalyst comprising at least one quaternary ammonium compound; a metal oxide catalyst; a chemical base; and at least one pH buffering compound.

The invention relates to a preparation method of a para-aramid low-denier fiber filament, belongs to the technical field of chemical fiber spinning, and particularly relates to a preparation method of a para-aramid low-denier (25-100D) fiber filament. The problem of wire breaking needs to be solved in the spinning process of the para-aramid low-denier fiber filament to ensure the production stability and the tow performance stability. According to the preparation method of the para-aramid low-denier fiber filament, a selected spinneret cap is used for reducing the risk of extruded cross flow and doubling of a para spinning solution; an alkali liquor with proper concentration is used for washing primary tows, thereby quickly neutralizing sulfuric acid and improving the strength of the tows; and by adopting flat washing and drying modes, the risk of wire breaking in the washing and drying links is reduced. By using the method, the spinning process of the para-aramid low-denier filament is stable and easy to operate, and the obtained fiber is excellent in mechanical property and stable in quality.

The invention relates to composite biochar and a preparation method thereof, and an ecological restoration method of industrial solid waste, belongs to the technical field of industrial solid waste treatment, and solves the technical problems that in the prior art, after alkali neutralization is adopted in an acid slag storage yard, acidic substances are still released to cause acidification of the acid slag storage yard, and the pH is gradually reduced and is difficult to stabilize in conventional reagent-based neutralization. The core structure of the composite biochar is hydrothermal carbon and red mud molding particles, and the shell structure of the composite biochar is hydrothermal carbon and alkali molding particles. The preparation method of the composite biochar comprises the following steps of: 1, crushing waste biomass; 2, preparing dehydrated hydrothermal carbon; 3, preparing hydrothermal carbon and red mud molding particles; 4, preparing composite molding particles which take the hydrothermal carbon and red mud molding particles as an inner core wrapped with hydrothermal carbon and alkali molding particles; and 5, carbonizing the composite molding particles in inert gas to obtain the composite biochar. The composite biochar with the core-shell structure prepared by the invention has a good alkaline slow-release effect.

The invention discloses a rapid vortex-free neutralization device for electroplating wastewater. The rapid vortex-free neutralization device comprises a neutralization tank, a hollow stirring shaft, a sleeve, a hollow shaft type speed reducer, a rotating connector, a pressurizing pump and a liquid adding tank, wherein the hollow shaft type speed reducer is mounted above the neutralization tank; the hollow stirring shaft is mounted on the hollow shaft type speed reducer; the upper end of the hollow stirring shaft is connected with a liquid adding tube through the rotating connector; the liquid adding tube is connected with the pressurizing pump; the pressurizing pump is communicated with the liquid adding tank. When the rapid vortex-free neutralization device is used for stirring, the electroplating wastewater is fed into the sleeve from the lower end of the sleeve and further flows out from the upper end of the sleeve due to adoption of spiral blades and the sleeve, so that vertical counter circulation flow is formed, the phenomenon of vortex caused by rotating stirring is avoided, the reaction velocity is also improved, and rapid neutralization treatment is achieved.

A universal decontamination formulation and method is disclosed based on the in situ generation dioxirane(s) under non-corrosive neutral conditions for the neutralization of chemical and biological warfare (CBW) agents. The composition relates to the generation of dioxiranes by mixing a monopersulfate-containing compound in the presence of a ketone in water buffered with a carbonate-type buffer, producing a pH neutral formulation that provides effective reactivity towards CBW agents over a wide range of temperatures.

The invention relates to a lightning protection system integrating lightning protection and recording, including a lightning protection unit, a residual voltage detection unit and a lightning countingunit. One lightning protection unit is arranged at the highest position of each lightning protection area. The lightning protection unit is connected with one residual voltage detection unit. At least one lightning counting unit is arranged in the lightning protection area. According to the invention, the lightning protection unit is installed at the top of the highest building within a protection scope, such as a high-rise building, a television tower, a power tower, a wireless telecommunication transmission tower, a tower rack in a tourist attraction or a chimney. Energy is accumulated by using equal-height lightning receiving rods arranged at the upper end, and charges are neutralized around the insulating medium, so that the thundercloud energy is consumed within the effective radiusaround the equipment, and no downlink discharge channel is formed. The residual voltage after lightning protection is less than or close to 120 volts and is extremely lower than the voltage released by lightning stroke under normal conditions. Therefore, the work safety of electrical equipment and communication facilities inside, outside and around the building is ensured.