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69results about How to "Fast neutralization" patented technology

Poly(diphenyl-dimethyl siloxane) with terminals sealed by alkyloxy groups, and preparation method thereof

The invention relates to a poly(diphenyl-dimethyl siloxane) with terminals sealed by alkyloxy groups, and a preparation method thereof. The preparation method comprises that octaphenylcyclotetrasiloxane and octamethylcyclotetrasiloxane as monomers for a polymerization reaction, low viscosity polydimethylsiloxane with terminals sealed by alkyloxy groups as a terminal sealing agent, and potassium silanolate as a catalyst are adopted; the monomers, the terminal sealing agent, the catalyst and accelerating agents are added into a reaction system; the reaction system is sealed up and then the mixture in the reaction system is stirred and heated to a temperature of 120 to 180 DEG C to undergo a polymerization reaction for 1 to 16 hours; and processes of neutralization, filtering and removal of low molecules on the reaction system are carried out. The preparation method has the advantages of high purity of raw materials, simple process, no need of a mass of organic solvents, and environmentally friendly characters. Products prepared by the preparation method has the advantages of high refractive index and good radiation resistance, high-low temperature resistance and climate resistance, and is especially suitable for base polymers of a dealcoholization type room temperature vulcanized silicone rubber, and surface treatment agents of filling materials such as white carbon black and the like utilized in various silicone rubber and other rubber processing.
Owner:SHANDONG DONGYUE ORGANIC SILICON MATERIAL

Equivalent ion lightning prevention unit and integrated lightning protection system

PendingCN107910752ARealize the processing method of attracting lightning but not entering the groundFast neutralizationCorona dischargePlasma techniqueIonLightning protection system
The invention relates to an equivalent ion lightning prevention unit comprising an upper electrode, a lower electrode and an insulating medium. A lower end of the insulating medium is embedded in theupper end of the lower electrode; an upper end of the insulating medium is embedded into the lower end of the upper electrode; a cavity is kept between the upper end surface the insulating medium andthe top surface inside the upper electrode; and a gap is reserved between the lower end surface of the upper electrode and the upper end surface of the upper electrode. A plurality of lightning receiving rods are arranged on the upper end surface of the upper electrode. According to the invention, the equivalent ion lightning prevention unit is installed at the top of a highest building like 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, in a protection range; energy collection is carried out by using the equal-height lightning receiving rods arranged at the upper ends; charge neutralization is carried out around the insulating medium and thus the thundercloud energy is consumed at the effective radius around the equipment and thus no downlink discharging channel is formed; and the residual voltage after lightning prevention is lower than or close to 120 volts and is extremelylower than a voltage of lightning discharging on the normal condition, so that safety working of electrical equipment and communication facilities around, inside and outside the building is guaranteed.
Owner:天津期待蓝天科技有限公司

Device for neutralizing treatment of chlorine-containing gas

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.
Owner:NANJING UNIV

Novel treatment device for classifying and recycling chemical waste liquid

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.
Owner:YONGCHENG VOCATIONAL COLLEGE

Composite biochar and preparation method thereof, and ecological restoration method of industrial solid waste

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.
Owner:ZHENGZHOU UNIV

Lightning protection system integrating lightning protection and recording

InactiveCN109728504AGuarantee job securityRealize the processing method of attracting lightning but not entering the groundCorona dischargeMeasurement using digital techniquesTransmission towerEffective radius
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.
Owner:国网辽宁电力有限公司丹东供电公司 +2

Neutralizing agent for acidic mine water treatment in Zhaotong region and preparation method thereof

The invention relates to a neutralizing agent for acidic mine water treatment in a Zhaotong region and a preparation method thereof. The neutralizing agent substitutes materials commonly used in traditional acidic mine water treatment, such as limestone, lime, lime, fly ash, and the like, provides a new path for the neutralizing treatment of acidic mine water in the Zhaotong region and similar regions and comprises permian dolomitic limestone maokouan. In practical use, the neutralizing agent has the optimal granularity smaller than 0.1 mm; the acidic mine water is firstly and preliminary precipitated and homogenated; and the neutralizing agent is added to the mine water and uniformly stirred. On the premise that the optimal granularity and the right treatment method of the neutralizing agent are ensured, a relation between the addition of the neutralizing agent and the addition of a mine water pH value satisfies a formula: Y=0.3783*X+1.1296 (Y is the addition of the mine water pH value, and X is the use amount of the neutralizing agent (kg / m<3>)); and the acidic mine water with a pH value of 2.0-3.0 can achieve a pH value of 7.0-8.0 after the addition and the right treatment of asuitable amount of neutralizing agent. The neutralizing agent has easy obtainment, converting preparation, simple use process, strong practicality and easy popularization without additional investment.
Owner:INST OF GEOGRAPHICAL SCI & NATURAL RESOURCE RES CAS
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