RESUMEN
The condensation of glyoxal with benzylamine leaded to hexabenzyl-hexaazaisowurtzitane (HBIW) with formic acid catalyst, and at the same time some side products were produced. Some impurities in HBIW would be harmful to the palladium catalyst used in the hydrogenolysis of HBIW, subsequently resulting in the low yield or failure of the catalytic reaction. The impurities in hexabenzylhexaazaisowurtzitane were distilled by means of recrystal technic, which were isolated by preparative chromatograph. The structure of the main impurity was studied with FTIR, 1H-NMR, ESI-MS, and element analysis. The result shows that the structure is comfirmed as N,N'-dibenzyl-oxalamide. which was synthesized in the way reported in the literature, and was charactered by FTIR, 1H-NMR and EI-MS. And the optical spectra data of the sample synthesized and the substance isolated from the impuries were the same, testifying that the substance isolated was N, N'-dibenzyl-oxalamide ulteriorly. N, N'-dibenzyl-oxalamide was added in the hydrogenolysis system of HBIW catalyzed by Pd catalyst. The result shows that N, N'-dibenzyl-oxalamide can reduce the activity of Pd catalyst, and when the quantity of N,N'-dibenzyl oxalmine added achievs 0.9% of the weight of HBIW, the reaction of catalytic hydrogenolysis fails.
RESUMEN
The combustion flame temperature distribution in the axes are measured by relative intensity method of the spectroscopic diagnostic technology for monopropellant hexanitrohexaazaisowurtzitane (HNIW) at 3 MPa and 5 MPa pressure, respectively. The investigation results show that the curves of combustion flame temperature distribution in all combustion course are accurately measured by relative intensity method for monopropellant HNIW. The measured highest combustion flame temperature in the axes are lower than theoretical combustion temperature at the same pressure, and are more close to theoretical combustion temperature along with the rising of the pressure. The experimental results indicate that the combustion flame temperature distribution can be measured by the relative intensity method for high energetic and high burning rate propellant at higher pressure.
RESUMEN
Many high temperature bodies such as flame, in which chemical reactions are very complex, emit their own spectra. These emission spectra usually consist of the spectral lines, spectral bands and the continuous spectra. In some cases, the spectral lines gather together. It is very difficult to find the right single spectral line when the spectral line intensity method is used. To deal with this problem, the idea that the single spectral line intensity is replaced by the total intensity of many spectral lines to measure the temperature is mentioned. And the relative intensity method is also changed to deal with this idea. The measurement of the temperature distribution based on this improved method is successful, and the measurement results are compared with the results of the thermocouple method.