• Lattice Inclusion of Copper Ions in Ammonium Perchlorate

     · Ammonium perchlorate is an exceptional oxidizer in composite solid rocket propellant formulations. Crystn. is the most crit. step in the manuf. of ammonium perchlorate which dets. the size shape morphol. characteristics crystal strength grinding characteristics and thermal characteristics of

    Chat Online
  • CuO/PbO Nanocomposite Preparation and Catalysis for

     · 1. Introduction. With the ongoing advances in nanotechnology nanoscale transition-metal oxides have gained much attention in the field of catalyzing ammonium perchlorate (AP) and AP-based propellants in recent years. 1 2 Nanocatalysts exhibit better catalytic effects than traditional catalysts owing to their small particle size large specific surface area and an abundance of catalytic

    Chat Online
  • ammonium perchlorate milling techniques

    ammonium perchlorate grinding techniques. Grinding is carried out by circulation of the suspension consisting of ammonium perchlorate and a dispersion liquid with a ratio of through parallel two ball mills and one Meshaal working capacity of 08 m 3for 1 to 10 hours to obtain the particle size of the oxidizer from 2 to 1 μm for a onetime download of lecithin and within 8 to 16 hours for a

    Chat Online
  • Ammonium perchlorate preparation method

    Grinding is carried out by circulation of the suspension consisting of ammonium perchlorate and a dispersion liquid with a ratio of through parallel two ball mills and one Meshaal working capacity of 0.8 m 3 for 1 to 10 hours to obtain the particle size of the oxidizer from 2 to 1 μm for a one-time download of lecithin and within 8 to 16

    Chat Online
  • Effect of crystallization parameters and presence of

     · Ammonium perchlorate is an exceptional oxidizer in composite solid rocket propellant formulations. Crystallization is the most critical step in the manufacture of ammonium perchlorate which determines the size shape morphological characteristics crystal strength grinding characteristics and thermal characteristics of the crystals.

    Chat Online
  • Effects of grinding montmorillonite and illite on their

    Effects of grinding montmorillonite and illite on their modification by dioctadecyl dimethyl ammonium chloride and adsorption of perchlorate. Multiple techniques were used to characterize the changes in structure and morphology before and after mechanical or organic modification. Compared with Ilt Mt showed a stronger resistance to

    Chat Online
  • THE HISTORY OF SOLID-PROPELLANT ROCKETRY WHAT

     · motors. Ammonium perchlorate replaced potassium perchlorate as an oxidizer in the late 1940 s and binders were developed. Discoveries important in the evolution of large solid-propellant motors appear to have resulted from innovators education and skills an exposure to contemporary problems an awareness of theory but a

    Chat Online
  • Method for preparing small particle size coated ammonium

    iv. discharging said ammonium perchlorate slurry from said mill and v. drying said discharged ammonium perchlorate slurry at a temperature ranging from about 120°F to 160°F for a period of time of up to about 3 days to yield an ammonium perchlorate product with a

    Chat Online
  • CuO/PbO Nanocomposite Preparation and Catalysis for

     · CuO/PbO NMO/AP mixture was obtained by light grinding. Here the purpose of light grinding was mainly to minimize the change in the particle size of AP during the grinding process. At a mass ratio of 49 1 the AP and CuO/PbO NMOs were mixed and added to an appropriate amount of ethyl acetate. Then the mixture sample was lightly ground. After the

    Chat Online
  • Method of producing ground fraction of ammonium perchlorate

    The ammonium perchlorate is fed by an air stream formed by two gas pumps for grinding into a grinding chamber separated into fractions in a centrifugal classifier with linear rotational speed of 9.1 m/s and deposited in a storage drum.

    Chat Online
  • Friction sensitivity mechanism of Ammonium Perchlorate

    Friction sensitivity of ammonium perchlorate (AP) composite propellants has been studied experimentally by means of thermal analysis and micro-thermocouple techniques. Several types of catalysts were mixed with AP in order to examine the effect of the reactivity on the sensitivity.

    Chat Online
  • Significantly Enhanced Thermal Decomposition of

    In this article nano-CuCr 2 O 4 (copper chromite)/ultrafine ammonium perchlorate (AP) composites were prepared by a ultrasonic dispersion method and a mechanical grinding method. A series of nano-CuCr 2 O 4 /ultrafine AP composites with different dispersions wer

    Chat Online
  • ammonium perchlorate grinding techniques

    Grinding is carried out by circulation of the suspension consisting of ammonium perchlorate and a dispersion liquid with a ratio of through parallel two ball mills and one Meshaal working capacity of 08 m 3 for 1 to 10 hours to obtain the particle size of the oxidizer from 2 to 1 μm for a onetime download of lecithin and within 8 to 16 hours for a particle size of from 1 to 055 microns for a given step input lecithin every two hours of grinding To obtain dry ammonium perchlorate

    Chat Online
  • Method for preparing small particle size coated ammonium

    iv. discharging said ammonium perchlorate slurry from said mill and v. drying said discharged ammonium perchlorate slurry at a temperature ranging from about 120°F to 160°F for a period of time of up to about 3 days to yield an ammonium perchlorate product with a

    Chat Online
  • Effects of grinding montmorillonite and illite on their

    Effects of grinding montmorillonite and illite on their modification by dioctadecyl dimethyl ammonium chloride and adsorption of perchlorate. Multiple techniques were used to characterize the changes in structure and morphology before and after mechanical or organic modification. Compared with Ilt Mt showed a stronger resistance to

    Chat Online
  • INVESTIGATION OF THE AMMONIUM PERCHLORATE

     · Ammonium perchlorate (AP) coarosite propellants are widely employed in currently operational solid rocket motors as well as those programmed for future develop-ment. The combustion mechanism of this type of propellant is unknown and so it has been impossible to produce a rational basis for motor design or even scaling rules

    Chat Online
  • Nano-metal oxide potential catalyst on thermal

     · vehicles and missiles. Ammonium perchlorate (AP) is widely used as an oxidiser in CSPs 16 17 . The ballistics of a composite propellant can be improved by adding a catalyst such as ferric oxide (Fe 2O 3) copper oxide (CuO) copper chromite (CuO Cr 2O 3) and Corresponding author. Email pragneshdave gmail ISSN 1745–8080 print/ISSN 1745

    Chat Online
  • Kinetics of Catalysed Thermal Decomposition of

     · Ammonium perchlorate (AP) obtained from CECRI Kara ikudi was used 25 such. Crystals of AP were grounded in a mortar and sieved to mesh. Bosic copper carbonate (BDH LR grr de). chromium carbonate (USSR) CuO (BDH LR grade) Cr203 (USSR) were used in the form of fine powders without any purification and grinding. The styrene

    Chat Online
  • Amateur Rocketry Motor (Engine) Propellant

     · Virtually all motors for amateur use and most composite propellants for commercial or military rockets use Ammonium Perchlorate as the oxidizer. The oxidizer comprises 50 to 80 of the total by weight. The fuel is usually a powdered metal either Aluminum or Magnesium. Grinding is done to reduce the chemicals to a very small particle size.

    Chat Online
  • Ammonium perchlorateBrief ProfileECHA

    Ammonium perchlorateBrief ProfileECHA. Brief Profile. The Brief Profile summarizes the non-confidential data on substances as it is held in the databases of the European Chemicals Agency (ECHA) including data provided by third parties. The Brief Profile is automatically generated note that it does not currently distinguish between

    Chat Online
  • ammonium perchlorate grinding by hammer mill

    Results 131 of 31 4.2.3 (a) Fluid energy mills usable for grinding or milling ammonium perchlorate RDX or HMX and ammonium perchlorate hammer and pin Get Price Patent USMethod of stabilizing the density of gas

    Chat Online
  • Lattice Inclusion of Copper Ions in Ammonium Perchlorate

     · Ammonium perchlorate is an exceptional oxidizer in composite solid rocket propellant formulations. Crystn. is the most crit. step in the manuf. of ammonium perchlorate which dets. the size shape morphol. characteristics crystal strength grinding characteristics and thermal characteristics of

    Chat Online
  • Ammonium Perchlorate Grinding Techniques

    Ammonium perchlorate () is the most common oxidizer in use for solid rocket propulsion systems. However its initial thermal decomposition is an endothermic process that requires 102.5 J/g. Get Detail Pulverizer For Ammonium Perchlorate. Ammonium Perchlorate Grinding Techniques cdsspgc.

    Chat Online
  • Enhancing Composite Solid Propellant Burning Rates with

     · This paper through various recrystallization techniques conclusively puts an end to doubts regarding the actual process of acquisition of potassium by ammonium perchlorate. It is concluded that the increase in the potassium content in ammonium perchlorate is due to the filter used during recrystallization process.

    Chat Online
  • Ammonium perchlorate NH4ClO4PubChem

    Ammonium perchlorate appears as a white crystalline solid or powder. Classified as a division 1.1 explosive if powdered into particles smaller than 15 microns in diameter or if powdered into larger particles but thoroughly dried. Does not readily burn but will

    Chat Online
  • In situ synthesis of copper stearate/ammonium perchlorate

     · Ammonium perchlorate (AP) accounts for more than 70 of the total dosage in solid propellants 1 2 3 4 . The thermal decomposition properties of AP is very important for the combustion performance of composite solid propellants 1 3 5 . A lower thermal decomposition temperature results in a shorter ignition delay of the propellant and a higher burning rate.

    Chat Online
  • Thermal decomposition of ammonium perchlorate

     · For ammonium perchlorate the heat effect coincided with the heat of dissociation of ammonium perchlorate into ammonia and perchloric acid (242–251 kJ/mol) . Thermal decomposition of ammonium perchlorate under rapid heating with the help of CO 2 laser providing the possibility to obtain heat flow 39 to 222 cal/(cm 2 s) was studied in .

    Chat Online
  • Thermal decomposition of ammonium perchlorate

     · For ammonium perchlorate the heat effect coincided with the heat of dissociation of ammonium perchlorate into ammonia and perchloric acid (242–251 kJ/mol) . Thermal decomposition of ammonium perchlorate under rapid heating with the help of CO 2 laser providing the possibility to obtain heat flow 39 to 222 cal/(cm 2 s) was studied in .

    Chat Online
  • Enhancing Composite Solid Propellant Burning Rates with

     · This paper through various recrystallization techniques conclusively puts an end to doubts regarding the actual process of acquisition of potassium by ammonium perchlorate. It is concluded that the increase in the potassium content in ammonium perchlorate is due to the filter used during recrystallization process.

    Chat Online
  • Friction sensitivity mechanism of Ammonium Perchlorate

    Friction sensitivity of ammonium perchlorate (AP) composite propellants has been studied experimentally by means of thermal analysis and micro-thermocouple techniques. Several types of catalysts were mixed with AP in order to examine the effect of the reactivity on the sensitivity.

    Chat Online
  • Method for preparing small particle size coated ammonium

    iv. discharging said ammonium perchlorate slurry from said mill and v. drying said discharged ammonium perchlorate slurry at a temperature ranging from about 120°F to 160°F for a period of time of up to about 3 days to yield an ammonium perchlorate product with a

    Chat Online