从LSX沸石滤液中提取A沸石及其对废润滑油中重金属和有机污染物去除的影响

Q3 Materials Science Cerâmica Pub Date : 2021-09-01 DOI:10.1590/0366-69132021673833108

R. Kwakye, A. Aniagyei, B. Kwakye-Awuah, B. Y. Vibgedor, B. Asimeng

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引用次数: 1

摘要

摘要以合成的LSX沸石滤液和铝土矿萃取的铝酸盐溶液为原料合成A型沸石，收率较高。采用x射线衍射(XRD)、傅里叶红外光谱(FTIR)、扫描电镜(SEM)和能量色散x射线能谱(EDX)对合成的沸石类型进行了表征。XRD结果表明，合成产物的结晶度较高。当应用于废润滑油时，重金属的去除率为:23.4%的Fe, 96.8%的Zn, 19.0%的Cu和12.0%的Cr。与含有84%的饱和油，3%的碳渣和13%的芳烃相比，再生油中的饱和油为80%，4%的残渣和16%的芳烃。这表明废油可以重复利用。

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Obtaining zeolite A from filtrate of zeolite LSX and its influence on the removal of heavy metals and organic pollutants in spent lubricating oil

Abstract Zeolites A was synthesized from alternate sources such as filtrate from synthesized zeolite LSX and aluminate solution extracted from bauxite which produced a very good yield. The synthesized zeolite type was characterized by X-ray diffractometry (XRD), Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM) coupled with energy dispersive X-ray spectroscopy (EDX). The synthesized product showed a high degree of crystallinity from the XRD results. When applied to a spent lubricating oil, the efficiency in removing the heavy metals was: 23.4% Fe, 96.8% Zn, 19.0% Cu, and 12.0% Cr. The saturates in the regenerated oil were 80% carbon, 4% residue, and 16% aromatics as compared to that of a commercial virgin oil that contained 84% saturates, 3% carbon residue, and 13% aromatics. This indicated that the spent oil can be reused.

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来源期刊

Cerâmica Materials Science-Ceramics and Composites

CiteScore

1.90

自引率

0.00%

发文量

审稿时长

10 weeks

期刊介绍： A Revista Cerâmica, órgão oficial da Associação Brasileira de Cerâmica (ABCERAM) publica contribuições originais de interesse na área de cerâmica, compreendendo arte cerâmica, abrasivos, biocerâmicas, cerâmicas avançadas, cerâmica branca, cerâmica de mesa, cerâmica eletroeletrônica, cerâmica estrutural, cerâmica magnética, cerâmica nuclear, cerâmica óptica, cerâmica química, cerâmica termomecânica, cerâmica vermelha, cimento, compósitos de matriz cerâmica, materiais refratários, materiais de revestimento, matérias-primas, vidrados, vidros e vitrocerâmicas, análise microestrutural, ciência básica, instrumentação, processos de fabricação, síntese de pós, técnicas de caracterização etc.