71 results about "Perchlorate salt" patented technology

The invention belongs to the superhard material polishing technical field and discloses polishing solution used for ultraprecise and low-damage polishing of a large-scale diamond wafer and a method for preparing the same. The method is characterized in that: oxidants with strong oxidbillity including chromium trioxide, ammonium persulphate, potassium permanganate, potassium dichromate, oxydol, potassium ferrate, potassium perchlorate and so on are adopted as main compositions; a proper amount of abrasive material is added for preparing the polishing solution; and micro-removal of surface material of the diamond wafer can be realized by means of chemical and mechanical composite action at normal temperature or low temperature. Moreover, the polishing effect of the polishing solution can be improved by addition of proper amount of catalyst, stabilizer, dispersant and so on as well. The polishing solution and the method have the advantages that: the polishing solution prepared has the advantages of high polishing efficiency, good polishing quality, good stability and so on; and the ultraprecise and low-damage polishing of the large-scale diamond wafer can be realized at the normal temperature or the low temperature.

A gas generant is provided which decreases toxic components, in particular carbon monoxide and nitrogen oxides, in generated gas to a concentration practical as an air bag system for automobile.A nitrogen-containing organic compound such as a compound containing amino group or amido group or a tetrazole derivative and a oxygen-containing inorganic oxidizer such as KNO3, Sr(NO3)2 or KClO4 are essential components. Therewith one or more metal oxides are contained in the mixed catalyst of the gas generant composition. The oxide is selected from manganese dioxide having a specific surface area not less than 50 m2 / g; copper oxide having a specific surface area not less than 1 m2 / g; molybdenum oxides such as molybdenum dioxide, molybdenum trioxide, molybdic acid and ammonium molybdate: and copper oxides, cobalt oxides, iron oxides and silver oxides.

Compositions and methods relating to gas generants used in inflatable restraint systems. The gas generant grains formed via spray drying techniques of the present disclosure provide superior performance, including high burn rates and high gas yields. Further, processing of the gas generant grain products can be streamlined. Such gas generants include by way of non-limiting example, guanidine nitrate, basic copper nitrate, and a secondary oxidizer, such as potassium perchlorate.

The invention provides an ignition drug for lifesaving solid oxygen and a preparation method thereof. The ignition drug is prepared from the following raw materials by mass percent by using a compacting technology: 32-44 % of sodium chlorate, 20-30 % of potassium perchlorate, 14-18 % of iron powder, 4-8 % of titanium powder, 5-12 % of cobalt chloride, 3-7 % of ferric oxide, 0.5-5 % of barium peroxide and 0.1-1.5 % of mica powder. The method solves problems of poor technology quality and low efficiency existing in prior art. According to the invention, electric igniter or ignition by mechanically knocking primer is employed, and thus energy is relatively high, impact force is large and solid-oxygen columns can be reliably ignited; residues do not flow after the ignition drug burns, thereby ensuring product safety; both high and low temperature performances satisfy corresponding product technology standards, remote automatic control is realized to start solid oxygen, and production quality and production efficiency of the ignition drug can be improved.

An ignition medicine with chlorate oxygen column and its production are disclosed. The ignition medicine consists of sodium chlorate 30~50% with grain size 60~300 meshes, lithium hyperchlorate or sodium perchlorate 10~30% with grain size 60~300 meshes, barium dioxide 0.1~6% with grain size 80~200 meshes, metal oxide ironic oxide or cuprous oxide 5~9% with grain size 20~200 meshes, metal powders 15~25% with grain size 100~300 meshes and cobalt salt 5~15% with grain size 40~200 meshes. It has shorter gas-take time and higher starting success probability of engine.

Disclosed are stabilizer mixtures comprising at least a) one alkanolamine or one reaction product of a monofunctional or polyfunctional epoxide and ammonia or a monofunctional or polyfunctional dialkyl(aryl)amine or monoalkyl(aryl)amine, and b) one uracil or one initial product and an optional perchlorate salt.

Compositions and systems for use in breaking or fracturing hard material are described. In particular, gas-generating compositions exhibiting at least a dual burn rate, including compositions comprising lactose, potassium perchlorate and ferrosilicon are described.

A chemical carbon dioxide gas generator comprising: - a charge housing; - a carbon dioxide gas penetrable charge, contained in the said housing, the charge comprising a) 40-60 wt. % of a substance which upon decomposition generates carbon dioxide, which substance is selected from the group of magnesium carbonate, other carbonates, magnesium oxalate and other oxalates, b) 20-50 wt. % of an oxidiser selected from the group of sodium chlorate, potassium chlorate, lithium chlorate, other metal chlorates, sodium perchlorate, potassium perchlorate, lithium perchlorate, and other metal perchlorates, c) 1-20 wt. % of carbon or another fuel, d) 1-10 wt. % binder, said components a), b), c) and d) together forming 90-100 wt. % of the total weight of the charge; - an ignition device for igniting the charge; - a carbon dioxide gas treatment unit for reducing the content of one or more side-products - which may have been formed by the charge - in the generated carbon dioxide, and / or for cooling carbon dioxide gas generated by the charge; and - an outlet for carbon dioxide gas generated by the charge.

The invention discloses an inferior coal catalysis sulphur-fixing agent used in the cement industry. Potassium perchlorate, sodium chloride and tween are used as oxygenate, a bulking agent and a dispersing agent respectively, and a catalyst is prepared from 10-18% of calcium carbonate, 6-17% of ferric oxide, 1-2% of boric oxide and 68-83% of rare earth tailings. The catalysis sulphur-fixing agent is prepared from, by mass, 30-36% of the oxygenate, 8-17% of the bulking agent, 2-5% of the dispersing agent and 48-55% of the catalyst, wherein the rare earth tailings are prepared from, by mass, 5-12% of ceric oxide, 10-22% of lanthanum oxide, 55-75% of neodymium oxide and 5-12% of cerous nitrate. The invention further discloses preparing and using methods of the catalysis sulphur-fixing agent. The catalysis sulphur-fixing agent can promote coal powder combustion and reduce emission of sulfide and has no negative effect on performance of cement clinker.

The raw material for a ZnO-Pr-based varistor is mixed with cobalt and potassium to prepare a ceramic raw material powder. Potassium, which is an alkali metal, is added in the form of KClO4, KHC4H4O6, PtCl6, or K2[Co(NO2)4]. The ceramic raw material powder is pulverized by a wet process while 0.1 to 5.0 wt % of polycarboxylate dispersant is added to the powder. Such a method can produce a reliable, high-quality varistor having excellent varistor characteristics, such as varistor voltage V1 ma and insulation resistance IR, and less variation in these characteristics.

The invention provides a water-retention gel electrolyte , a preparation method thereof, and a water-based supercapacitor and a preparation method and application thereof, and relates to the field of gel electrolytes and supercapacitors. The water-retention gel electrolyte provided by the invention is prepared from an electrolyte aqueous solution and an oxygen-containing functional group polymer. The electrolyte in the electrolyte aqueous solution is one or more of lithium perchlorate, bis(trifluoromethane)sulfonimide lithium salt, lithium hexafluorophosphate, lithium nitrate, sodium chloride, sodium perchlorate, bis(trifluoromethane)sulfonimide sodium salt, sodium hexafluorophosphate, sodium nitrate, potassium chloride, potassium perchlorate, bis(trifluoromethane)sulfonimide potassium salt, potassium hexafluorophosphate and potassium nitrate. The oxygen-containing functional group polymer is one or more of polyvinylpyrrolidone, polyethylene glycol, polyvinyl alcohol, carboxymethyl cellulose and polyacrylamide. The water-based supercapacitor based on the water-retention gel electrolyte has ultra-long cycle life at the normal temperature, and can be normally charged and discharged at the high temperature of 120 DEG C and stably circulated.

According to the present invention, it is possible to provide a cleaning solution which removes a dry etching residue and photoresist on a surface of a semiconductor element having a low dielectric constant film (a low-k film) and at least one material selected from between a material that contains 10 atom % or more of titanium and a material that contains 10 atom % or more of tungsten, wherein the cleaning solution contains: 0.002-50 mass % of at least one type of oxidizing agent selected from among a peroxide, perchloric acid, and a perchlorate salt; 0.000001-5 mass % of an alkaline earth metal compound; and water.

An ignition charge for an initiator provided with an igniting mechanism for setting aflame an ignition charge by the heat generated by an exothermic element connected via a pair of current conducting pins in response to an electric signal is a slurry ignition charge which is formed mainly of a mixture consisting of zirconium as a fuel component and potassium perchlorate as an oxidizing agent component. The ignition charge for the initiator contains nitrocellulose as a binder component in an extrapolated compounding ratio of 0.1% by weight or more and 0.5% by weight or less based on the total amount of zirconium and potassium perchlorate and isoamyl acetate as a solvent in an extrapolated compounding ratio of 12.5% by weight or more and 14.0% by weight or less based on the total amount of zirconium and potassium perchlorate. The ignition charge is spread on the exothermic element and dried. The ignition charge is for the initiator of a gas generator, particularly an electric gas generator.

The present invention relates to a potassium perchlorate fire crackers powder. Its composition includes (by wt%) potassium perchlorate (KClO4) 38.46%-52.63%, sulfur (S) 17.39%-31.82%, aluminium powder (AL) 12.5%-23.81% and ground perlite 8.33%-15.38%. It is safe and low in cost, and its explosive effect is identical to that of potassium chlorate.

The invention discloses a nail shooting bullet for an arc nail shooting gun. The nail shooting bullet is triggered by an arc of an arc nail shooting gun and comprises the following components: 1 partof potassium perchlorate or potassium hypochlorite or potassium chlorate, 0.1-1 part of starch and 0.05-1 part of water. The invention also discloses a preparation method of the nail shooting bullet,and the preparation method comprises the following steps: 1) crushing potassium perchlorate or potassium hypochlorite or potassium chlorate, carrying out screening with a sieve of 140-180 meshes, adding water, and stirring the mixture uniformly; 2) adding starch into the obtained mixture and stirring the mixture uniformly; and (3) sub-packaging the obtained mixture into a charging barrel of the nail shooting bullet, and carrying out vacuum packaging immediately. The invention further discloses an arc nail shooting gun for triggering the nail shooting bullet, and the arc nail shooting gun comprises a first cavity for accommodating shoot nails and a second cavity for mounting an arc generator, wherein the first cavity communicates with the second cavity through a channel, and the volume of the channel is less than or equal to 0.115mm<3>. The nail shooting bullet provided by the invention has the advantages of high safety performance, simple preparation process, good detonating effect andhigh detonating speed, can be detonated efficiently in the presence of water, and has a remarkable environmental protection effect.

The invention relates to a cast charge and application thereof to production of a firework propellant. The cast charge is potassium hydrogen terephthalate prepared by mixing terephthalic acid and potassium hydroxide in water to generate a chemical reaction. The cast charge is applied to production of the firework propellant, wherein the firework propellant is prepared by mixing the following components in percentage by weight: 60-70% of potassium perchlorate, 25-35% of cast charge and 2-5% of adhesive and pelletizing a mixture through a sugar coating machine. During the production of the cast charge disclosed by the invention, raw materials are not directly mixed with a strong oxidant, thus very safe production and transportation of the cast charge are realized; when the cast charge is applied to production of the firework propellant, as long as the cast charge is mixed with the potassium perchlorate and the adhesive before the production and is not mechanically machined and the cast charge is not directly stored and conveyed for a long time, potential safety hazard is greatly reduced; in addition, the usage amount of the firework propellant produced by the cast charge disclosed by the invention is only 6g and is 60% of that of a traditional firework propellant, thus the cost is reduced.

A gas generating composition of the present invention contains at least one fuel selected from carboxylic acids, salts of carboxylic acids, and polymers; at least one perchlorate salt; and / or at least one metal oxide or metal hydroxide. A gas generating system 200 containing a gas generant in accordance with the present invention is also contemplated.

The invention discloses an energy-saving, eliminating sulfur and falling dust concentrated liquid, which comprises the following steps: choosing kalii permangana, thyronorman, sodium nitrate, common salt, rare earth chloride, calcium carbonate, calcia, magnesium carbonate, potassium bichromate, boric oxide and borax as raw material; grinding calcium carbonate, magnesium carbonate and calcia to powder with grain size smaller than 1mm; mixing the raw material; adding into water; stirring evenly; getting the product. This concentrated liquid can be mixed into coal, which can increase the temperature of fire box and the heating efficiency of high boiler.

A boiler decoking agent is composed of the following raw materials in parts by weight: 40 parts of aluminum nitrate, 30 parts of kaolin, 10 parts of nitric acid, 10 parts of potassium perchlorate, and 10 parts of sodium carbonate. The addition amount of the boiler decoking agent is 0.2% of the fuel weight. After the application of the boiler decoking agent, the burning efficiency, coal saving rate, and safety of boilers are all improved.

The invention discloses a delay composition with long-term healing per second and a production method of the delay composition, and aims at solving the problems that the existing delay composition with long-term healing per second is generally poor in precision and complex in preparation process. The delay composition comprises the following components in percentage by weight: 30%-40% of molybdenum powder, 50%-60% of barium chromate, 5%-15% of potassium perchlorate and 3%-8% of calcium fluoride. The production method of the delay composition has the advantages of a simple production process, a high yield, energy conservation and environmental friendliness, less wastewater produced in the process, and the like. Meanwhile, the delay composition with long-term healing per second disclosed by the invention has the characteristics of a wide delay time range, precise delay, good storage performance and the like, and has a wide application and development prospect in the military and civilian fields at home and abroad.

The invention discloses a safe pyrotechnic composition oxidant, including the following components in percentage by mass: 60-90% of modified barium nitrate and 40-10% of potassium perchlorate. The pyrotechnic composition oxidant disclosed by the invention is high in safety, large in reactivity and low in production cost, the performances thereof are approximate to those of potassium chlorate oxidant, such as ignition reliability, combustion stability, setting off effect and cost price and the like, so that the pyrotechnic composition oxidant can be used as a substitute product of the pyrotechnic composition oxidant potassium chlorate with high risk.

The invention discloses a recovery system and recovery method for potassium perchlorate and sodium chloride crystalline salts in wastewater. The recovery system comprises a freezing device, an MVR evaporative crystallization device, an MVR thick centrifugal device, a freezing precipitation device, a chlorate metathesis device and an electrolysis device, wherein the freezing device communicates with the MVR evaporative crystallization device; the MVR thick centrifugal device communicates with the MVR evaporative crystallization device; the freezing precipitation device communicates with the MVRthick centrifugal device; the chlorate metathesis device communicates with the freezing precipitation device; and the electrolysis device communicates with the chlorate metathesis device. According to the recovery system for potassium perchlorate and sodium chloride crystalline salts in the wastewater disclosed by the invention, high-purity solids and wastewater which can be directly discharged can be obtained.

The heavy oil energy saving agent consists of vegetable oil 27.5-30.5 weight portions, ethanolamine 23.5-30.5 weight portions, oleic acid 3-7 weight portions, potassium perchlorate 1.5-3.5 weight portions, glycol ether 3-7 weight portions, sodium hydroxide 3-6 weight portions, and solvent in proper amount. The present invention has the advantage of raising the quality and combustion efficiency, and adding into heavy oil in the added ratio of 8-25 % can result in an oil saving rate of 8-27 %, 20-80 % reduced harmful gas exhaust and greatly reduced environmental pollution.

A secondary high energy density lithium ion cell includes a cathode comprising a high voltage cathode active material, a lithium metal anode, and a non-aqueous electrolyte, wherein the non-aqueous electrolyte comprises an imide salt with a fluorosulfonyl group and a perchlorate salt, wherein the electrolyte is electrochemically stable at operating voltages greater than 4.2V.

The invention relates to a fruit-flavored sulfur-free firecracker explosive flavored twice by steaming. The fruit-flavored sulfur-free firecracker explosive flavored twice by steaming comprises the following components in parts by weight: 30-50 parts of modified barium nitrate, 10-20 parts of potassium perchlorate, 15-25 parts of a fruit flavoring agent, 20-25 parts of copper oxide, 1-10 parts ofpearlite powder and 5-8 parts of charcoal powder. The invention further provides a preparation technology of the fruit-flavored sulfur-free firecracker explosive. The preparation technology comprisesthe following steps: mixing chemicals, screening, flavoring by steaming at low temperature, primarily airing, flavoring by steaming at high temperature, secondarily airing and the like. The fruit-flavored sulfur-free firecracker explosive overcomes the operating problems that bonding of the conventional chemical components and the fruit flavoring agent is not stable and uniform and agglomeration is easily caused, and has the advantages of high melting point, low mechanical sensitivity, strong deliquescence resistance, accordance with an environment-friendly requirement, capability of releasingaroma and the like.

An improved moistureproof binder for paper boxes is prepared from the following raw materials in parts by weight: 9-14 parts of plant starch, 3-8 parts of 2,6-di-tert-butyl p-cresol, 4-9 parts of cellulose, 5-10 parts of diisocyanate, 4-8 parts of dipropylene glycol, 4-10 parts of ethidene diamine, 7-11 parts of vinyl acetate emulsion, 2-6 parts of potassium perchlorate, 1-4 parts of aluminium trichloride, 4-10 parts of waste polystyrene foam, 3-6 parts of alkylbenzene, 1-4 parts of a stabilizer, 4-8 parts of polylactic acid and 5-11 parts of ethyl alcohol. The improved moistureproof binder for paper boxes provided by the invention has the benefits that no harm to a human body is caused, the cohesiveness is good, and a certain moistureproof effect is achieved.

The invention relates to a blasting dust fall air bag watering device, which specifically comprises a gas production system, a gas storage system and a water spraying system, wherein the gas production system comprises a detonating tube insertion channel, bayonet rubber, an iron shell, sealing paper, a gas production agent (a mixture of pentaaminotetrazole and potassium perchlorate), a metal knitted filter screen, vent holes and a heat insulation net, the gas storage system comprises a temporary gas storage chamber, a one-way vent valve and an elastic gas storage bag, and the water spraying system comprises a water storage bag, a water inlet cover and a one-way drainage valve (a water inlet hole, a spring, a sealing rubber ring, a sealing rubber ring supporting plate, a water spraying hole, a water outlet hole, a one-way drainage chamber and a plastic shell). According to the invention, the device can be connected into a detonating network, placed at a key position where smoke dust may be generated, and detonated together with the detonating network, so that the purposes of synchronous dust falling and fixed-point dust falling are achieved while the smoke dust is generated; and water in the water storage bag is sprayed out through the expansion effect of the internal elastic gas storage bag, so that the dust falling effect can be effectively improved, and the dust falling area is increased.