48 results about "Chemical used" patented technology

To provide protective clothing that can protect the body when attacked by a bear and repel the bear. [Solution] Protective clothing worn to repel bear attacks comprises a protective fabric 1 sandwiched between a surface fabric 2 and a backing fabric 3. The protective fabric 1 comprises a chemical-containing layer 11 capable of releasing a chemical to repel bears, and a protective layer 12 for physical protection from bear attacks. The chemical used to repel bears is capsaicin, derived from chili peppers. When a strong force is applied to the human body by a bear attack, physical damage to the chemical-containing layer 11 causes the chemical to be released, allowing the bear to repel. Furthermore, the protective layer 12 cushions the impact on the human body, making the garment effective in protecting the human body from bear attacks.

The invention discloses a reinforced protection method for an edge section of a full-paper-based container, which belongs to the technical field of paper-based container treatment, and comprises the following steps: step 1, end surface pretreatment: carrying out chip removal treatment on the cut end surface of a paper tube, and keeping a loose state of fibers; step 2, local impregnation and permeation: vertically and downwards immersing the end surface of the paper tube into the prepared solution, fixing the immersion depth to be 0.8 mm, keeping the immersion depth for 5 seconds, and enabling the paper tube to naturally permeate upwards along a gap of a paper layer by utilizing the low viscosity characteristic of the liquid; and 3, gradient curing is conducted, specifically, the treated paper tube is placed in circulating hot air at the temperature of 55 DEG C to be dried for 15 minutes. Different from a traditional method for coating the whole pipe body or compounding a plastic inner container, only the weakest cutting end face is subjected to precise treatment, the equivalent and even better protection effect is achieved, meanwhile, the use amount of chemicals is greatly reduced, the production cost is reduced, and the original advantages of air permeability of the wall body of the paper pipe and the like are kept.

The invention relates to a Pt / Ru / RuO2 heterostructure metal aerogel material and a preparation method thereof. The method is realized through a two-step simple process which comprises the following steps: firstly, reducing ruthenium trichloride and potassium chloroplatinate in an aqueous solution by taking sodium borohydride as a reducing agent to obtain precursor hydrogel; and then the hydrogel is subjected to freeze drying and annealing treatment, and the final product Pt / Ru / RuO2 heterostructure metal aerogel is obtained. According to the preparation strategy, a traditional sodium borohydride reduction method is improved, operation is easy and convenient, consumed time is short, and used drugs are not only non-toxic and harmless, but also extremely low in cost. Performance tests show that the Pt / Ru / RuO2 heterostructure metal aerogel has excellent performance in electro-catalytic hydrogen evolution (HER) and oxygen evolution (OER) reactions: under the high current density of 10 mA. Cm <-2 >, the overpotentials of HER and OER are only 17 mV and 1840 mV respectively; more notably, after continuous testing for 24 hours under the current density, the performance of the material is basically not attenuated, and excellent stability is shown. By virtue of the advantages, the material has a wide application prospect in the field of energy conversion of electrolyzed water and the like.

The invention relates to a synthesis method and application of a double-layer thermochromic deformation hydrogel, according to the double-layer thermochromic deformation hydrogel, CMC is adopted to perform mechanical enhancement on original PNIPAm, LAP is adopted to perform photo-initiation on a monomer, and the price of CMC and LAP is far lower than that of functionalized silicon dioxide nanoparticles and AIBA in the prior art under the same usage amount. Meanwhile, drugs used in the process are free of volatility and corrosivity, and the safety degree is higher than that of acrylic monomers used in the prior art. Besides, the use temperature of a hydrogel device in the prior art is 60 DEG C and is high, while the double-layer temperature-sensitive hydrogel in the invention can be curled only at 40 DEG C, so that the hydrogel has more advantages in temperature. By adding CMC, the volume change of the hydrogel in the heating process is remarkably reduced, meanwhile, the mechanical property of the hydrogel is greatly improved, the mechanical property of the hydrogel is further improved through impregnation of zirconium ions, and the hydrogel has a wider application scene.

This utility model discloses an integrated device for precise metering, mixing, and spraying of chemicals using a vibration-type method, belonging to the field of tailings treatment technology. It includes a main shell, a chemical input device, a mixing device, a spraying device, and a conveying device. The chemical input device is located on top of the main shell and includes a mixing chamber and a connecting unit. The mixing chamber is located on top of the main shell and connected to the spraying device via the connecting unit. The chemical input device is connected to the spraying device located inside the main shell. The spraying device is used to input chemicals into the mixing chamber inside the main shell. A raw material feeding port is located at the top of the main shell and connects to the mixing chamber. The mixing device is located inside the mixing chamber and is used to mix the special chemicals and raw materials fed into the mixing chamber. A conveying device is connected below the mixing chamber and is used to transport the mixed mixture to a pressing device. This utility model has the advantages of precisely controlling the amount of chemicals used and achieving uniform mixing.

[Problem] To efficiently set a farm field for spraying chemicals and a route for the farm field, for each of a plurality of operators. [Solution] A program to be executed by a computer comprising a processor and a memory. This program causes the processor to execute: a step for acquiring information about a plurality of farm fields to which chemicals are to be sprayed, and information about a plurality of operators responsible for spraying chemicals using a flying vehicle; a step for grouping the plurality of farm fields for each operator on the basis of the productivity of the plurality of operators; and a step for referring to a group of farm fields grouped for each operator and setting farm fields that each of the plurality of operators is responsible for and a route of spraying chemicals in the farm fields so as to satisfy a predetermined schedule.

------ Glove for nuclear, radiological, biological and chemical use Glove comprising: A. a part intended to be applied to the dorsal surface of the hand, comprising the regions of the palm (Ap), the index finger (Ai), the middle finger (Am), the ring finger (Aan) and the little finger (Aau); B. a part intended to be applied to the internal surface of the hand, comprising the regions of the palm (Bp), the index finger (Bi), the middle finger (Bm), the ring finger (Ban) and the little finger (Bau). The regions (Bi), (Bm), (Ban) and (Bau) are each formed of a piece independent of the rest of the glove, which extends on either side, along the respective finger to form a fold towards the corresponding region (Ai), (Aam), (Aan) and (Aau) with a view to joining it with it. Figure to be published with the abstract: Figure 1

The invention relates to a thermal forming plastic pipe machine. Comprising a base table, a motor control assembly arranged on one side of the base table, a pushing unit arranged on the base table, a rotating unit arranged on the pushing unit, a clamping unit arranged on one side of the pushing unit, a heating forming unit arranged on one side of the base table and a toggle clip unit arranged on one end side of the base table. The rotating unit can be used for embedding and clamping a forming rod sleeved with a machined Teflon pipe, the forming rod is at least provided with a threaded part at one end, and the rotating unit can drive the forming rod to rotate; the pushing unit can push the rotating unit to slide on the base table, the clamping unit can clamp the forming rod sleeved with the machined Teflon pipe, and the heating forming unit conducts heating and pressurizing machining action on the threaded portion of the forming rod sleeved with the machined Teflon pipe. The thread part of the forming rod is sleeved with the machined Teflon pipe, and the machined Teflon pipe is in a spiral shape. Therefore, the diversification, the convenience and the processing accuracy of processing the Teflon pipe for the chemical industry into a spiral shape can be improved.

The present disclosure relates to a method for producing high-value-added chemicals using waste plastics, the method comprising the steps of: a) pyrolyzing waste plastic feedstock to generate an oil-containing stream; b) reacting a part or all of the oil-containing stream in the presence of a catalyst in at least one circulating fluidized bed reactor; and c) separating and recovering high-value-added chemicals from the reaction product, wherein the oil-containing stream produced in step a) is fed into the reactor of step (b) without a process of removing olefins and non-hydrocarbon substances, and the catalyst contains phosphorus (P), has one or more metals selected from Cu, Ag, La, Ga, and Ni loaded thereto, and is pre-treated by pre-steaming.

Scavenging chemicals used in mitigation treatments of hydrogen sulfide in hydrocarbon streams often continue to react and form polymers that foul the processing system. Disclosed herein are methods for determining if a scavenging chemical mitigator, or its reaction or degradation product, will polymerized during or after mitigation treatments. This information allows for the optimization of mitigation treatments that pre-emptively control or prevent polymer formation. Such pre-emption measures reduce the cost and time related to remedial actions to treat polymer-fouled equipment.

This invention provides a method for removing the core of a rare earth oxide core-shell ceramic core. The method includes the following steps: Step 1, preparation of the core removal solution; Step 2, preparation of the core removal solution; Step 3, assisted core removal; Step 4, neutralization and cleaning with alkaline solution; Step 5, assisted core removal; Step 6, neutralization and cleaning with acid solution; Step 7, repeating steps 3-6 more than twice until the ceramic core inside the titanium alloy casting is completely disintegrated and removed, resulting in a titanium alloy casting with the core removed. The core removal method of this invention has the following advantages and effects: (1) the required raw materials are inexpensive; (2) the chemicals used in the core removal process are less toxic; (3) the core removal process is simple, the core removal efficiency is high, and the core removal time is short, which can be completed within 24h-36h; (4) the removal process can be carried out under normal pressure and will not cause damage, wear, or other adverse conditions to the titanium alloy casting, which is beneficial to improving the integrity of the titanium alloy casting.

The present invention belongs to the technical field of pumps, and specifically discloses an axial flow pump for chemical use, comprising a pump body and a controller, wherein a filter mechanism is provided at the bottom of the pump body, and a sewage discharge assembly is provided on the surface of the filter mechanism; wherein, the filter mechanism comprises a mounting pipe connected to the liquid inlet end of the pump body; by providing the filter mechanism, the interior of the mounting pipe can be divided into an inlet area, a sewage discharge area and an outlet area, and the filter holes provided on the surface of the connecting tube are used to intercept dirt and impurities in the sewage discharge area and store them separately; when the pressure inside the sewage discharge area is too high, the hydraulic sensor, the controller and the sewage discharge assembly can be used to achieve the purpose of relieving the pressure inside the sewage discharge area and simultaneously achieving the independent discharge of the dirt; and the filter holes can be self-cleaned in the process of discharging the dirt, without the need for manual operation by the staff, with a high degree of automation, thereby reducing the occurrence of overpressure damage to equipment due to untimely cleaning.

Disclosed are devices and methods for capturing carbon dioxide and other gases. All gas-capturing systems employ chemical fluid / media for binding purposes. One system delivers chemicals in droplet form, while another system delivers feed gas in bubble form. All systems employ an admixing chamber for confining and uniting particles of matter, as well as streaming means for placing gas in confinement. The droplet-based delivery system packetizes chemicals using an atomizing device, while the bubble-based delivery system packetizes gaseous feedstock using metering means, rerouting means, perturbation means, and stream-dividing means. The droplet and bubble systems feature common or unique advantages relating to chemical flow, surface area, and / or progressive cycling. These advantages increase the efficiency of gas-capturing devices in general and decarbonizing devices in particular.

The chemical barrel comprises a chemical barrel body (1), an anti-leakage cover (2) is arranged outside the chemical barrel body (1) in a sleeved mode, a lifting mechanism (3) is arranged between the outer side wall of the bottom of the chemical barrel body (1) and the inner side wall of the bottom of the anti-leakage cover (2), and the lifting mechanism (3) is connected with the anti-leakage cover (2). The two ends of the supporting spring (31) are connected with the outer side wall of the bottom of the chemical barrel (1), and the two ends of the damper (32) are connected with the inner side wall of the bottom of the anti-leakage cover (2); the supporting force of the supporting spring (31) and the damper (32) is between the downward pressure when the chemical barrel (1) is in an empty barrel state and the downward pressure when the chemical barrel (1) is in a full barrel state. The anti-leakage cover does not need to be lifted and dumped by a worker, the working intensity of dumping is reduced, and when chemical liquid in the chemical barrel leaks, the leakage can be perceived by the worker at the first time and corresponding disposal is carried out.

The invention discloses a physical expansion stripping chemical etching preparation method of MXene, which comprises the following steps: placing an MAX phase precursor in a supercritical reaction kettle, introducing carbon dioxide, regulating and controlling the temperature and the pressure to enable the carbon dioxide to reach a supercritical state, and carrying out physical expansion; after stirring at constant temperature and constant pressure for a certain time, carrying out physical puffing pressure relief treatment, and repeating the physical puffing pressure relief operation for n times; putting a product subjected to physical expansion treatment, a fluorine-free etching agent and an auxiliary agent into a supercritical reaction kettle together, introducing carbon dioxide again, regulating and controlling the temperature and the pressure to maintain the carbon dioxide in a supercritical state, and meanwhile, carrying out a supercritical state etching reaction for a preset duration in a stirring or fluid circulation manner; after the supercritical state etching reaction is completed, carrying out instantaneous blasting treatment on a reaction system; and taking out a reaction product, and washing the reaction product until the reaction product is neutral to obtain the target MXene. The chemical etching effect is improved, the chemical reaction time is shortened, and the dosage of chemicals is reduced.

The disclosed apparatus for mixing and supplying chemicals used for semiconductor processes according to the present application includes: raw chemical supply lines for externally supplying chemicals; and a mixing line for receiving the chemicals from the raw chemical supply lines to produce a chemical mixture; wherein one end of each of the raw chemical supply lines is connected to a chemical storage tank in which the chemicals are stored, and a chemical flow controller for controlling the flow rate of the chemicals is installed in each of the raw chemical supply lines, and the chemical flow controllers installed in each of the raw chemical supply lines are controlled in multiple channels using one controller, and the flow rate of each of the chemicals is preset corresponding to a mixing ratio of the chemicals and stored as a preset value, and when the chemicals are supplied for mixing, the flow rates of the chemicals are simultaneously controlled using the preset values corresponding to the mixing ratio, which are previously stored.

The invention discloses a device for reducing the content of metal ions in electronic chemicals through a plasma technology, and relates to the technical field of metal ion removal. According to the device for reducing the content of the metal ions in the electronic chemicals through the plasma technology, through cooperation of the annular temperature control frame and the spiral temperature control frame, cooling treatment on a chemical solution can be completed firstly through the spiral temperature control frame, and the chemical solution flows along the top of the spiral temperature control frame till entering the machine body; according to the chemical solution temperature control device, the temperature control efficiency of a chemical solution can be improved, then temperature control treatment is achieved through cooperation of the annular temperature control frame, compared with a traditional operation mode, the temperature control effect of the chemical solution can be further improved, and the operation efficiency of the device is effectively improved.

The present invention relates to the technical field of scaling treatment for oil and water well tubulars, and in particular to a targeted delivery device for a chemical in an oil and water well and a method for using the device. The technical solution is as follows: a guide head is mounted at the lower end of a lower housing; a motor housing is mounted in the inner cavity of an upper housing, a motor is mounted in the motor housing, the output end of the motor is connected to a lead screw via a transmission shaft, the outer portion of the lead screw is engaged with a lead screw nut, the outer wall of the lead screw nut is engaged with a strip groove provided on the outer wall of the upper housing via a second screw, and the lead screw nut is driven to move along the lead screw by the rotation of the motor; the lower side of the lead screw nut is movably connected to the upper end of a connecting rod of a piston, the inner cavity of the lower housing contains chemical, the piston reciprocates up and down in the inner cavity of the lower housing, and pushes the chemical through a nozzle mounted on the guide head to be sprayed onto the scale or wax deposits on the inner wall of the downhole tubular. The present invention reduces the total amount of chemical used, avoids chemical residue in non-target areas, thereby reducing the risk of tubular corrosion and improving scaling efficiency and economy.

The present disclosure relates to the field of resource utilization-oriented treatment technologies for wastewater, and more particularly, to a resource utilization-oriented treatment method for a spent electroless nickel plating bath. The method includes oxidation de-complexation, synchronous precipitation of nickel and phosphorus, secondary precipitation of nickel, and resource utilization of sodium salt. In the present disclosure, in a reaction process, no sludge is generated to avoid secondary pollution to the environment. Further, the present disclosure has the advantages of short flow and less chemical use, greatly reducing treatment costs. In this way, this method is a low-cost and clean resource utilization-oriented treatment method capable of achieving resource utilization-oriented recovery of nickel, phosphorus, sodium, sulfate radical, or chlorine in the spent electroless nickel plating bath.

The invention belongs to the technical field of detection methods, and discloses a method for detecting the anti-aging effect of chemicals by using zebrafish behavioristics, which comprises the following steps: selecting wild zebrafish, and dividing the zebrafish into a blank control group and an experimental group; performing drug administration treatment on the tested fish; carrying out behavioral detection on the tested fish; exporting and analyzing behavioral data; the method comprises the following steps: performing anti-aging effect detection in a zebra fish model by using an average value of movement speeds in a behavioral light environment and a dark environment and speed change during light-dark conversion as indexes, and evaluating the anti-aging effect by using living zebra fish, so that the tested fish can still be used for subsequent detection and experiments of other indexes after the detection is finished. The method has the advantages of simplicity, convenience, rapidness, economy, visualization, high throughput and the like. The invention further discloses application of the method for detecting the anti-aging effect of the chemicals by using zebra fish behavioristics. The method has important significance in anti-aging effect evaluation of products in the anti-aging related field, the functional cosmetic field and the functional food field.

A method of determining if a terrestrial test animal and / or test animal from which a product is derived has been treated and / or is currently undergoing treatment with at least one antibiotic and / or veterinary chemical includes: (a) determining a test methylation profile from genomic material contained in a biological sample obtained from the test animal and / or the animal-derived product; and (b) comparing the test methylation profile obtained from (a) with a reference methylation profile obtained from a control animal of the same biological taxon of the test animal, where the control animal was not treated and / or is not currently undergoing treatment with at least one antibiotic and / or veterinary chemical, wherein a difference in the test methylation profile of (a) compared to the reference methylation profile from the control animal is indicative of the test animal having been treated and / or is currently undergoing treatment with at least one antibiotic and / or veterinary chemical.

A method for manufacturing a histologic tissue sample support device includes molding a tissue cassette, molding a frame, and coupling the tissue cassette to the frame by assembling a frame-cassette connector. The tissue cassette has a recess including at least one side wall and a bottom wall. The tissue cassette is formed of a first material that can be successfully sectioned in a microtome and is resistant to degradation from solvents and chemicals used to fix, process and stain tissue. The frame includes a bottom edge and is formed of a second material different from the first material and more rigid than the first material. The frame-cassette connector includes a first retaining structure formed integrally with the frame extending through a second retaining structure formed integrally with the cassette. The frame is capable of being decoupled from the cassette by separating the frame-cassette connector.

The present invention relates to an eco-friendly pH indicating ink solution composition and a method for manufacturing the same. Specifically, the invention relates to a pH indicating ink solution composition for packaging materials and a method for manufacturing the same, characterized by comprising carboxymethyl cellulose (CMC) or chitosan (CT) as a binder; a plant pigment; a solvent; and an edible additive. Furthermore, the present invention relates to a pH indicator comprising the eco-friendly pH indicating ink solution composition of the present invention and a method for manufacturing the same. According to the present invention, the pH indicating ink composition for packaging materials can be provided as a sustainable alternative by replacing petroleum-based substances, organic solvents, and chemicals used in conventional packaging ink solutions with environmentally friendly, sustainable, and harmless substances to the human body, and can also demonstrate the effects of enhancing food safety and reducing environmental impact. Furthermore, by applying the pH indicating ink composition for packaging materials of the present invention to packaging materials for kimchi and other food groups, it is possible to provide consumers with real-time information on quality changes through the color change of an indicator without opening the packaging. Consequently, this can lead to improved consumer perception of the quality of other food groups and increased product selection through enhanced convenience. Additionally, the environmentally friendly pH indicating ink solution composition of the present invention can be applied not only to packaging materials but also to various forms and industries, such as pH pencils and pH films.

This application provides a method for manufacturing a circuit board, relating to the field of circuit board manufacturing technology. The method includes: providing a sample board; slicing the sample board to form sampling holes; laminating a wiring layer onto the sliced ​​sample board; and removing the portion of the wiring layer opposite to the sampling holes. This method, by removing the portion of the wiring layer opposite to the sampling holes after laminating the wiring layer onto the sliced ​​sample board, avoids the formation of a cavity structure in the sliced ​​circuit board, prevents the sampling holes from harboring chemicals used in wet processing, and effectively prevents these chemicals from seeping into the internal layer structure of the circuit board, thus helping to prevent circuit board delamination.

------ Glove for nuclear, radiological, biological, and chemical use. Glove comprising: A. a portion intended to be applied to the dorsal surface of the hand, including the regions of the palm (Ap), index finger (Ai), middle finger (Am), ring finger (Aan), and little finger (Aau); B. a portion intended to be applied to the ulnar surface of the hand, including the regions of the palm (Bp), index finger (Bi), middle finger (Bm), ring finger (Ban), and little finger (Bau). The regions (Bi), (Bm), (Ban), and (Bau) are each formed from a piece independent of the rest of the glove, which extends on either side, along the respective finger, to form a fold towards the corresponding region (Ai), (Aam), (Aan), and (Aau) for joining with it. Figure to be published with the abbreviation: Figure 1

A histologic tissue sample support device includes a tissue cassette, a frame, and a lid. The tissue cassette has a recess including at least one side wall and a bottom wall and is formed of material that can be successfully sectioned in a microtome and is resistant to degradation from solvents and chemicals used to fix, process and stain tissue. The lid is coupled to the frame and includes a platen configured to be received within the recess of the tissue cassette. The tissue cassette is movably coupled to the frame by a frame-cassette connector. The lid and the tissue cassette are capable of moving from a first position to a second position with respect to the frame, and in the second position the bottom wall and at least a portion of the side wall extend beyond a bottom edge of the frame for sectioning in a microtome.

A method of determining if an aquatic test animal and / or test animal from which a product is derived has been treated and / or is currently undergoing treatment with at least one antibiotic and / or veterinary chemical includes: (a) determining a test methylation profile from genomic material contained in a biological sample obtained from the test animal and / or animal-derived product; and (b) comparing the test methylation profile obtained from (a) with a reference methylation profile obtained from a control animal of the same biological taxon of the test animal, where the control animal was not treated and / or is not currently undergoing treatment with at least one antibiotic and / or veterinary chemical, wherein a difference in the test methylation profile of (a) compared to the reference methylation profile from the control animal is indicative of the test animal having been treated and / or is currently undergoing treatment with at least one antibiotic and / or veterinary chemical.

The application relates to the technical field of semiconductors, in particular to a purification system for semiconductor wet chemicals, which comprises a negative pressure assembly, a bottle body capable of containing a high-purity degassing membrane, a first sealing plate and a second sealing plate arranged at two ends of the bottle body, a liquid inlet arranged on the outer wall of the first sealing plate, a liquid outlet, a gas outlet, a liquid outlet arranged on the outer wall of the second sealing plate, and a two-way diaphragm winding structure formed by a center column and an isolation column, which effectively enlarges the contact area of the wet chemicals, avoids the short circuit problem of the flow path, and greatly improves the degassing efficiency. Meanwhile, a full-sealing gasket sealing design is combined to prevent the invasion of external impurities and secondary pollution caused by chemical oxidation.

The present invention relates to an assembly for extracellular secretion of a target chemical substance, which comprises a conjugate including an aptamer fused to RNA of the target chemical substance that can be produced intracellularly, and a transporter including an RNA-binding protein fused to a carrier protein; a gene construct encoding each of the transporter and the conjugate constituting the assembly; a vector carrying the gene construct; a host cell into having the vector introduced thereinto; a method for producing the target chemical substance, the method comprising a step of culturing the host cell; an extracellular secretion system of the target chemical substance constructed by introducing the gene construct or the vector into a microorganism; and a method for producing the target chemical substance by activating the system. By using the assembly and the system according to the present invention, it is possible to increase the intracellular production as well as extracellular secretion and excretion of the target chemical substance, and the invention can be advantageously applied to the production of microorganism-based useful chemical substances.