65 results about "Perchlorate salt" patented technology

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.

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.

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.

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.

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 invention discloses a composite catalyst and a preparation method thereof. The method includes using a phosphoric acid buffer solution of a pyrrole monomer (py) as a precursor; obtaining a ppy array by adopting a chronoamperometry to carry out electric polymerization on the carbon paper; placing the obtained ppy array in an N2 atmosphere, and calcining to obtain a three-dimensional carbon array; and placing the carbon array in a potassium perchlorate solution to grow MnO2 in situ, and finally placing the carbon array after MnO2 growth in a CoCl2. 6H2O solution to grow Co (OH) 2 to preparethe three-dimensional array composite catalyst loaded with MnO2 and Co (OH) 2 at the same time. The composite catalyst disclosed by the invention is efficient and stable in OER catalytic performance and relatively low in production cost, and can be applied to industrial production to promote rapid development of the hydrogen energy society.

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.