21 results about "Potassium perchlorate" patented technology

The invention discloses a low-sensitivity activator as well as a preparation method and application thereof, and belongs to the technical field of gas fracturing. Potassium perchlorate is used as an oxidizing agent of the low-sensitivity activator, flour is used as a combustible agent of the low-sensitivity activator, and the mass ratio of the potassium perchlorate to the flour in the low-sensitivity activator is (50-70): (10-20). The low-sensitivity activator provided by the invention has the advantages that the mechanical sensitivity, flame sensitivity and static sensitivity of the low-sensitivity activator are at extremely low levels, and the low-sensitivity activator has excellent stability and higher ignition temperature; related tests carried out according to the Program on Dangerous Goods Transport of the United National further show that the activator not only has remarkable gas production rate, but also shows extremely low sensitivity to shock waves, the insensitive characteristic of the activator is even superior to that of a conventional insensitive explosive, and practical application verification shows that the cracking effect of the activator is completely not lower than the level of a metal powder activator.

This invention discloses a composite sheet in the field of thermal battery technology. The sheet comprises a heating powder, a positive electrode material, and a nano-diaphragm powder, which are laminated and pressed together. The heating powder is a mixture of micro-nano iron powder and potassium perchlorate in a weight ratio of 70-90:10-25. The positive electrode material comprises components and their usage ratios of disulfide: electrolyte: adsorbent: high-thermal-conductivity graphene in the order of 65-85:5-10:3-10:7-15, with the adsorbent being MgO or Al2O3. The nano-diaphragm powder is a mixture of electrolyte and MgO in a ratio of 50-65:35-50, heated and melted, and then formed into particles with a size of less than 10 μm. The composite sheet obtained by this invention can be used to prepare a novel fast-activation single-cell battery, shortening activation time by over 50% compared to conventional single-cell batteries.

The present application relates to the technical field of papermaking, in particular to an inorganic fiber-metal powder paper and a preparation method and application thereof. The preparation raw material of the inorganic fiber-metal powder paper provided by the present application includes active iron powder 70-85 parts by mass, potassium perchlorate 12-20 parts by mass and inorganic fiber 2-20 parts by mass. The present application uses inorganic fiber, potassium perchlorate and active iron powder as raw materials to make inorganic fiber-metal powder paper, which improves the performance of the iron powder paper and meets the requirement of high-temperature gas production. The inorganic fiber-metal powder paper provided by the present application has the characteristics of uniform energy density, high strength, free cutting, no cracks after pressing and extremely low gas production, and can be used in missiles as a heating iron powder paper.

The invention discloses a display shell capable of generating a yellow smoke effect, which consists of a spherical shell body filled with explosives and effect powder and a paper cup seat loaded with propellant powder, and further comprises an ignition lead and a blasting fuse. According to the display shell provided by the invention, through the three-section synergistic effect of the effect powder, the explosive and the propellant powder, stable generation and high-altitude release of yellow smoke are realized. The effect drug takes 3, 6-diamino-10-methyl acridine hydrochloride as a color development core and is supplemented by a barium nitrate / strontium carbonate composite oxidant system; the explosive triggers the effect explosive to release through a high-heat reaction of aluminum powder-barium nitrate; the propellant ensures that the display shell is accurately lifted off through high-energy output of potassium perchlorate-magnesium aluminum alloy. The three formulas form synergy in three aspects of energy transfer, oxidant complementation and combustion regulation, so that the yellow smoke has the advantages of stable color development, uniform diffusion and long duration.

The invention relates to fire-extinguishing by aerosol flooding, and more particularly to solid-propellant aerosol-forming compositions. The present aerosol-forming composition contains: 1.0-8.0 wt% fuel-binder, 45.0-65.0 wt% first oxidant in the form of an alkali metal nitrate, 10.0-22.0 wt% gas-forming agent, 0.1-5.0 wt% combustion catalyst, 10.0-25.0 wt% second oxidant in the form of potassium perchlorate, and the balance an additive that generates fire retardants. The result is an increase in fire-extinguishing efficiency with a high rate of combustion of the composition.

A gas generating composition according to various embodiments includes a fuel, an oxidant, and at least two combustion modifiers. The oxidant may be a metal nitrate, such as basic copper nitrate; the fuel may be a nitrogen-containing organic compound, such as melamine nitrate; the at least two combustion modifiers are ammonium perchlorate and potassium perchlorate. Ammonium perchlorate and potassium perchlorate are present in any ratio between 3: 1 and 1: 3, respectively, relative to each other. In some embodiments, the ratio is 1: 1. Optionally, the gas generating composition may include other ingredients, such as treatment lubricants, slagging agents, as well as other fuels, oxidants, and combustion modifiers.

The invention discloses a portable handheld solid oxygen generator used in a special environment. The portable handheld solid oxygen generator comprises an oxygen generator body, a heat insulation protective layer and a shell. More than two heat insulation protective layers are arranged between the outer wall of the oxygen generator and the shell, and the overall outer diameter is not more than 70 mm; an oxygen generating core of the oxygen generator comprises chlorate, a catalyst, fuel and a chlorine inhibitor; chlorate is sodium chlorate or potassium perchlorate; the catalyst is one or more of cobalt oxide, cobaltosic oxide, cobalt hydroxide or cobalt chloride; the fuel is metal fuel; the chlorine inhibitor is one or more of barium peroxide or calcium hydroxide. The oxygen generator is fast in oxygen generation, high in purity, small in size, light in weight, free of maintenance, easy to operate, convenient to carry, safe, reliable, high in environmental adaptability and low in surface temperature, and can be used under the limiting working condition without being affected by the external environment.

The invention discloses a tungsten delay powder and a preparation process thereof, and belongs to the field of energetic materials. The tungsten delay powder provided by the invention comprises a tungsten powder compound and potassium perchlorate, the tungsten powder compound comprises tungsten powder and barium chromate loaded on the surface of the tungsten powder; the mass ratio of the tungsten powder to the barium chromate to the potassium perchlorate is (30-40): (50-60): 10; according to the invention, the tungsten delay powder is prepared by adopting a dispersion charging mode under specific conditions, so that barium chromate can be loaded on the surface of tungsten powder in a more uniform mode to form a state that the tungsten powder is coated with barium chromate, a structure similar to a core (tungsten powder) and a shell (barium chromate) is presented, and the granularity and form of a tungsten powder compound can be well controlled; and finally, the delay time of the second-level delay powder as a final product can be effectively prolonged, so that the second-level delay powder has a good delay effect and good delay precision.

The present invention discloses a composition for stably flowering longans matured in September and November and its application. The composition is composed of potassium chlorate and sodium tungstate. Application of the composition in improving the flowering rate and / or yield of longans planted in the late season. A method for improving the flowering rate and / or yield of longans planted in the late season, comprising applying the composition of the present invention in spring to chemically induce flowering of the late season longans. The present invention improves the method of using a single potassium chlorate to induce flowering. By adding sodium tungstate when applying potassium chlorate, the flowering rate of plants induced by potassium chlorate in the late season can be effectively increased. The method can adjust the longan production period, reduce the impact of the environment on the flowering effect, break the limitation that the main longan producing areas in my country cannot achieve the production of longans in the late season, extend the longan harvest time, reduce the dependence on imported longans, increase the product value, improve the enthusiasm of fruit farmers for planting and provide them with technical support for the planting of the late season longan.

The utility model provides a kind of potassium perchlorate material conveyor, it is related to conveyor technical field, including base and conveying pipe.The utility model drives second sprocket to rotate by starting first motor, second sprocket rotation will drive second shaft to rotate inside conveying pipe, second shaft rotation will drive helical conveying piece to rotate, helical conveying piece rotation will spiral convey the potassium perchlorate material in conveying pipe to discharge pipe, simultaneously, second sprocket is connected with first sprocket by chain, the rotation of second sprocket will drive chain transmission, and then make first sprocket rotate, first sprocket is fixedly installed on first shaft, so first shaft will rotate with the rotation of first sprocket, the broken rod installed on first shaft will also rotate, when material is conveyed to discharge pipe by helical conveying piece, rotating broken rod can disperse material, avoid because of extrusion, friction and other factors in conveying process cause material to gather and form larger particle.

Disclosed are an ignition powder, a preparation method therefor and a use thereof, and an airbag gas generator, which belong to the technical field of ignition powders. The raw materials of the ignition powder include the following components in percentages by mass: potassium perchlorate. 30%˜50%; basic copper nitrate: 5%˜20%; a fuel: 15%˜60%; a metal oxide: 1%˜25%; and a metal powder: 1%˜25%, wherein the metal powder is at least one of a titanium powder, a magnesium powder, a copper powder, an iron powder, a zirconium powder, a hafnium powder, a tungsten powder or a silicon powder.

The invention provides a firework bright bead for achieving a snow waterfall effect and a preparation method, and relates to the technical field of firework bright beads. The firework bright bead comprises an effect flux core and an ignition powder layer wrapping the effect flux core; the effect flux core comprises the following raw materials in parts by mass: 35-55 parts of potassium perchlorate, 0-20 parts of aluminum powder, 7-12 parts of phenolic resin, 25-50 parts of ash aluminum powder and 0-10 parts of coarse alloy powder; the ignition powder layer comprises the following raw materials in parts by mass: 60-70 parts of black powder, 15-25 parts of potassium perchlorate, 8-12 parts of magnesium-aluminum alloy powder and 8-10 parts of phenolic resin. The invention provides the snow waterfall firework bright bead which is moderate in combustion time, full and dense in effect and capable of presenting a visual effect of imitating falling of heavy snow particles, and the preparation method of the snow waterfall firework bright bead.

The invention provides a mixing reactor for preparing potassium perchlorate, which relates to the field of chemical production equipment, comprises a support frame and a tank body assembly, and is characterized in that the tank body assembly comprises a tank body bracket bolted with the support frame, and further comprises a tank body shell, and the tank body bracket is welded on the outer surface of the tank body shell; an inner tank body is embedded in an inner cavity of the tank body shell, a cavity is formed between the tank body shell and the inner tank body, a heat pipe is embedded in the cavity and spirally wraps the surface of the inner tank body, the two ends of the heat pipe are connected with temperature control equipment, and a top cover assembly is arranged at the top of the tank body shell.

The invention discloses an SERS (Surface Enhanced Raman Scattering) sensor for detecting inorganic explosive residues and a detection method. The SERS sensor comprises a base, an SERS substrate, a sensor body, a top electrode and a bottom electrode, the sensor body is arranged on the base and is provided with a filter cavity, a detection cavity and an inclined flow channel for connecting the filter cavity and the detection cavity; the substrate is arranged at the bottom of the filtering cavity, the top electrode is arranged above the substrate, and the bottom electrode is arranged below the substrate. According to the SERS sensor and the detection method provided by the invention, the detection of inorganic explosion residues can be realized, the enhancement factor of the prepared SERS substrate is 1.78 * 10 < 9 >, the detection limit of rhodamine is 10 <-14 > mol / L, the detection limits of sodium nitrate, sodium sulfate and potassium perchlorate are 10 <-7 > mol / L, and the detection limit of the prepared SERS substrate is 1.78 * 10 < 9 >. It is proved that the SERS sensor and the detection method have good qualitative and quantitative detection performance on the inorganic explosion residues.

The invention discloses a thermal expansion stone cracking powder tube which comprises an outer tube body, a thermal expansion agent and a core ignition tube, the thermal expansion agent and the core ignition tube are located in the outer tube body, and the outer tube body ignites the internal thermal expansion agent through a set of ignition wires for rapid heating; the thermal expansion agent is composed of carbon black, coal gangue powder, straw powder, sodium nitrite, potassium perchlorate and a starch adhesive, and is used for rapid expansion after being heated. The thermal expansion agent is rapidly gasified and expanded under the condition of sudden rapid heating, good rock breaking destructive power is achieved, dangerous situations such as production, storage and transportation explosion do not exist, the situation of fire combustion explosion does not exist, safety and convenience are achieved, in addition, vibration generated by thermal expansion stone cracking is weak, noise is very small, noise pollution is basically avoided, and the thermal expansion stone cracking device is suitable for large-scale popularization and application. Meanwhile, the vibration of cracked stones is small, a large amount of dust cannot be generated, the damage range is within a specified range, and the influence on the surrounding environment is small for a working site which is greatly restricted by site factors.

The high-altitude bird repelling bomb comprises a spherical bomb body filled with explosives and a base loaded with propellant powder, the base is provided with an ignition part for igniting the propellant powder, the spherical bomb body and the base are connected with the propellant powder and the explosives through a blasting fuse in a fire transferring mode, and the explosives are wrapped in a cotton yarn paper wrapping layer. The cotton yarn paper wrapping layer is correspondingly attached to the inner cavity wall of the spherical projectile body. The explosive consists of the following components in parts by weight: 54-56 parts of potassium perchlorate, 24-26 parts of magnesium aluminum alloy, 9-11 parts of sulfur, 9-11 parts of aluminum silver powder, 4-6 parts of sponge titanium and 4-6 parts of perlite powder, and the explosive is obtained by uniformly mixing the components according to a general method and granulating. Through comprehensive improvement of the structure of the projectile body and the formula of the explosive, the sound level value of the projectile can be effectively improved under the condition of not increasing the size and the explosive loading amount of the projectile body. And meanwhile, strong explosive white light visual deterrence is considered. And the bird repelling effect is good.

The present disclosure relates to a heat insulation sheet for a rechargeable lithium battery, and a rechargeable lithium battery module. A heat insulation sheet for a rechargeable lithium battery includes a base sheet including a first base layer and an aerogel-containing layer that are stacked together, and a member completely surrounding an exterior of the base sheet. The aerogel-containing layer includes a binder including a polyvinyl alcohol-based binder, a fibrous support, and an aerogel, and the member includes one or more of potassium nitrate, potassium carbonate, and potassium perchlorate, and a support.

The present disclosure relates to a thermal insulation sheet for a rechargeable lithium battery and a rechargeable lithium battery module including the same. The thermal insulation sheet for a rechargeable lithium battery includes: a base sheet including a first base layer and an aerogel-containing layer stacked together; and a member completely surrounding the outer surface of the base sheet. The aerogel-containing layer includes a binder including a polyvinyl alcohol-based binder, a fibrous support, and an aerogel, and the member includes one or more of potassium nitrate, potassium carbonate, and potassium perchlorate, and a support.

A gas-generating composition (GGC) including a fuel-binder and a gasifying agent in the following amount, per 100% of the weight: a fuel-binder in the amount of 3.0 - 8.0%; a first oxidizer provided by a alkali metal nitrate in the amount of 25.0 - 60.0%; a first gasifying agent in the amount of 10.0 - 40.0%; a catalyst in the amount of 0.1 - 8.0%; a second oxidizer provided by potassium perchlorate in the amount of 10.0 - 30.0%; and a second gasifying agent provided as the remaining amount of the composition.

This application relates to the technical field of surface blasting, specifically disclosing a safe and environmentally friendly initiating explosive and its preparation process. The safe and environmentally friendly initiating explosive comprises hexamethylenetetramine, potassium perchlorate, and perchloric acid as raw materials; the weight ratio of hexamethylenetetramine to potassium perchlorate is not less than 1. The preparation process of the safe and environmentally friendly initiating explosive includes the following steps: Pretreatment: Hexamethylenetetramine and potassium perchlorate are simultaneously sieved and mixed to obtain a mixed solid raw material; perchloric acid is prepared into a perchloric acid solution with water; Mixing reaction: Water is added to a reaction vessel, the mixed solid raw material is first heated and dried, and then simultaneously added to the reaction vessel with the perchloric acid solution to react, obtaining a co-crystallized product; Post-treatment: The co-crystallized product is filtered, washed, then cooled and dried to obtain the safe and environmentally friendly initiating explosive.