Synthesis of P-Type Zeolite from Oil Shale Ashand Its Adsorption to Co2+

Abstract

Abstract: The thesis takes oil shale ash as the research object, adopts alkali fusion-hydrothermal synthesis method to synthesize P-type zeolite, and studies the influence of ash-alkali ratio, alkali fusion temperature, hydrothermal temperature, NaCl addition amount, and other conditions on the synthesis of P-type zeolite. And using the prepared P-type zeolite to carry out the Co²⁺ adsorption experiment. The results show that the addition of NaCl is beneficial to the synthesis of zeolite, while the increase in the ash-alkali ratio, alkali fusion temperature, and hydrothermal temperature is not conducive to the synthesis of zeolite. The removal rate of Co²⁺ in wastewater by oil shale ash and P-type zeolite shows an upward trend with the increase of adsorbent dosage. The adsorption performance of P-type zeolite for Co²⁺ is better than that of oil shale ash. And with the increase of the initial concentration of Co²⁺ solution, the removal rate of Co²⁺ by P-type zeolite gradually decreases.

Key words: oil shale ash, alkali fusion method, P-type zeolite, Co²⁺, adsorption

CLC Number:

TE662

ZHAO Wen, LI Hanfei, WU Wei. Synthesis of P-Type Zeolite from Oil Shale Ashand Its Adsorption to Co²⁺[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2021, 40(5): 1720-1727.

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Synthesis of P-Type Zeolite from Oil Shale Ashand Its Adsorption to Co²⁺

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