粉煤灰酸法提取氧化铝工艺中结晶氯化铝的提纯流程概述_OpenScirbe Publishing

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粉煤灰酸法提取氧化铝工艺中结晶氯化铝的提纯流程概述

Author(s)：
丁瑞平

Publication Title：

Wen Yuan (Middle School Edition) 2021 No.12

Affiliations：
国能准能准资氧化铝中试厂

Abstract：
结晶氯化铝是粉煤灰酸法提取氧化铝工艺中的关键中间产物，如何经济有效地提升其纯度至达标是整个工艺实现工业化的难点之一。本文结合粉煤灰的成分特点和具体的工艺流程，对生产过程中影响结晶氯化铝纯度的多种因素作了分析；针对采用的分离提纯方法，分别从原理上和分离效果上进行了描述，其中重点分析了蒸发结晶、氯化铝洗涤、盐析结晶对提纯效果的影响，最后对结晶氯化铝提纯方法的发展方向作了展望。这对未来进一步改进结晶氯化铝提纯流程，加快实现粉煤灰酸法制铝工艺的工业化应用具有一定的意义。

Keywords：
粉煤灰；结晶氯化铝；分离；提纯

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[1] 丁瑞平.粉煤灰酸法提取氧化铝工艺中结晶氯化铝的提纯流程概述[J].Wen Yuan (Middle School Edition),2021(12),.

文渊(中学版)

Wen Yuan (Middle School Edition)

Language: 中文

CN：11-9275/G

ISSN：2096-627X

Publication Frequency: 月刊

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