XRFThe relative quantities of the chemical elements in the analysis of catalytic Fluorescence X-ray techniques can be with Spectrometry (XRF) analysis: the table shows the proportions of Si/Al of NaZSM-5 and HZSM-5 have similar values at approximately 16 shows that there is no break-out of the Al from the structure of zeolites during ion proton exchange. When the HZSM-5 came to get rid of aluminium in DHZSM-5 by using different concentrations of hydro chloric from 0.5-2 M, it was found that when the removal of aluminium Si/Al increased the proportion is 18, however, increasing the concentration of the acid. Si/Al proportions have not increased in proportion to the quantity of acid. Therefore, the concentration of the acid, the 2M is not enough to get rid of aluminium in the structure of synthetic HZSM-5. When compared with past research that can get rid of aluminium by 2M HCl cause that the structure of synthetic HZSM-5 has. There is a strong infrastructure and a stable high in acid.
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