内蒙古某煤矸石低温制备4A沸石实验

Abstract

Abstract: This experiment takes the coal gangue of Inner Mongolia as the raw material，uses alkali fusion method at low tem- perature（450 ℃） to activate the test sample，and synthesizes 4A zeolite by hydrothermal method with adding crystallization directing agent.The experiments were carried out at crystallizing temperatures at 30~60 ℃ and crystallizing time of 24 h.4A zeolites synthesized at different temperatures were characterized by XRD，SEM，FT-IR，and BET etc.to evaluate the quality of as-prepared zeolites indirectly.Results showed that there was a small number of 4A zeolite generated in samples at crystallizing temperature of 30 ℃.But when the temperature reached 50 ℃，4A zeolite with better morphology，higher crystallinity，and 2 μm particle size could be obtained.

Key words: coal gangue, low temperature, alkali fusion, hydrothermal synthesis, 4A zeolite

CLC Number:

TQ133.1

FAN Wen-Yang, LI Xia, SUN Jian-Ling. Research on synthesis of 4A zeolite with a coal gangue in Inner Mongolia at low temperature[J]. INORGANICCHEMICALSINDUSTRY, 2016, 48(5): 44-.

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Research on synthesis of 4A zeolite with a coal gangue in Inner Mongolia at low temperature

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