As anticipated, the sodium content exhibited a decreasing trend in parallel with the reduced conductivity of the washing water, and the sodium contents of A 3 -Na-1, A 3 -Na-2, and A 3 -Na-3 were 1.04%, 0.68%, and 0.53%, respectively.
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Acoustic Enhancement Performance of Hierarchical ZSM-5 Zeolites with Different Si/Al Ratios.
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