利用碳酸氢铵—氨水混合沉淀剂制备碳酸镧的研究

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英文篇名：Preparation of lanthanum carbonate by ammonium bicarbonate and ammonia water mixed precipitant 作者：郝一鸣 ; 董方 英文作者：HAO Yi-ming;DONG Fang;Inner Mongolia University of Science and Technology; 关键词：碳酸氢铵 ; 碳酸镧 ; 混合沉淀剂 ; 氨水 英文关键词：ammonium bicarbonate;;lanthanum carbonate;;mixed precipitator;;ammonia water 中文刊名：COLO 英文刊名：World Nonferrous Metals 机构：内蒙古科技大学; 出版日期：2018-09-29 15:43 出版单位：世界有色金属 年：2018 期：No.506 语种：中文; 页：COLO201814141 页数：2 CN：14 ISSN：11-2472/TF 分类号：262+264

摘要

将碳酸氢铵-氨水看作是混合沉淀剂,选择氯化镧溶液作料液,通过采取并流沉淀法来生产碳酸镧产品,是一项重要的工业生产工艺。为了保证产品质量,本文主要围绕稀土浓度与碳酸镧产品质量间关系、反应时间与产品质量间关系、沉淀废水回用与产品质量间关系、产品物相结构与形貌分析等方面展开讨论,从多个角度出发,全面分析碳酸镧产品质量相关影响因素,进而实现产品质量的提高。
        Ammonium bicarbonate-ammonia water is regarded as mixed precipitant, lanthanum chloride solution is selected as the condiment, and the product of lanthanum carbonate is produced by parallel flow precipitation method. In order to ensure the quality of products, this paper mainly discusses the relationship between rare earth concentration and the quality of lanthanum carbonate products, the relationship between reaction time and product quality, the relationship between the reuse of precipitated wastewater and product quality, the analysis of phase structure and morphology of products, and comprehensively analyzes the relationship between the quality of lanthanum carbonate products from various angles. Influencing factors, so as to achieve the improvement of product quality.

引文

[1]刘瑞金,赵治华.采用碳酸氢铵-氨水混合沉淀剂制备碳酸镧的研究[J].稀有金属与硬质合金,2017,45(02):51-54.
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