Optimization of Cerium Carbonate Precipitation from Nitric Acid Solutions

IF 0.4 4区工程技术 Q4 ENGINEERING, CHEMICAL

Theoretical Foundations of Chemical Engineering Pub Date : 2026-10-05 DOI:10.1134/S0040579526700405

E. V. Bogatyreva, A. I. Kartasheva

引用次数: 0

Abstract—The conditions of cerium carbonate precipitation from nitric acid solutions with a saturated ammonium carbonate solution were optimized to obtain easily filterable pulps using mathematical methods of experimental design, namely, steepest ascent method and full factorial experiment. It was experimentally determined that it is possible to obtain easily filterable cerium carbonate pulps at a specific filtration rate of at least 1700 L/(m² h) by single-stage precipitation from nitric acid solutions of cerium with at least 100 g/L Ce₂O₃, at least 90 g/L NH₄NO₃, and pH 1.5–2.0 with a saturated ammonium carbonate solution.

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硝酸溶液沉淀碳酸铈的工艺优化

摘要：采用最陡上升法和全析因实验设计的数学方法，对饱和碳酸铵溶液中硝酸溶液中碳酸铈的沉淀条件进行优化，得到易过滤的纸浆。实验结果表明，在饱和碳酸铵溶液中，从含有至少100 g/L Ce2O3、至少90 g/L NH4NO3、pH为1.5-2.0的硝酸铈溶液中，单段沉淀可以获得易过滤的碳酸铈浆，比过滤速率至少为1700 L/(m2 h)。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Theoretical Foundations of Chemical Engineering 工程技术-工程：化工

CiteScore

1.20

自引率

25.00%

发文量

审稿时长

24 months

期刊介绍： Theoretical Foundations of Chemical Engineering is a comprehensive journal covering all aspects of theoretical and applied research in chemical engineering, including transport phenomena; surface phenomena; processes of mixture separation; theory and methods of chemical reactor design; combined processes and multifunctional reactors; hydromechanic, thermal, diffusion, and chemical processes and apparatus, membrane processes and reactors; biotechnology; dispersed systems; nanotechnologies; process intensification; information modeling and analysis; energy- and resource-saving processes; environmentally clean processes and technologies.