ИЗВЛЕЧЕНИЕ СОЛЯНОЙ КИСЛОТЫ ИЗ ОТРАБОТАННОГО ТРАВИЛЬНОГО РАСТВОРА МЕТОДОМ ЭКСТРАКТИВНОЙ ДИСТИЛЛЯЦИИ
Ключевые слова:
соляная кислота, травильный раствор, серная кислота, регенерация, дистилляция
Аннотация
Представлены результаты экспериментальных исследований процесса дистилляции отработанного солянокислого травильного раствора. Процесс осуществлялся на лабораторной установке. Отработанный травильный раствор (ОТР), содержит кроме непрореагировавшей соляной кислоты хлористое железо. Перед дистилляцией в ОТР вводилась серная кислота. В результате образуется сульфат железа и высвобождается соляная кислота. Средняя концентрация соляной кислоты, полученной при дистилляции исходного ОТР составила 18,9 %. При введении серной кислоты концентрация увеличилась до 29,2 %. Показано влияние технологических параметров на процесс дистилляции ОТР. При увеличении избытка серной кислоты по сравнению со стехиометрическим количеством средняя концентрация HCl в дистилляте возрастает. Увеличивается также и степень выделения соляной кислоты из ОТР. Снижение давления в системе приводит к смещению равновесной линии на диаграмме составов вправо, аналогично системе НСl - H2O.
Литература
REFERENECES
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1. Aksenov V.I. Pickling and regeneration complexes. M.: Teplotekhnik, 2006. 237 p.
2. Bykovskij N.A., Puchkova L.N., Fanakova N.N. Regeneration of the etching solution used in the production of printed circuit boards. Problems of collection, preparation and transport of oil and petroleum products. 2023. N 6(146). P. 137-145.
3. Turaev D.Yu. A new method for the regeneration of hydrochloric acid copper chloride solutions of copper etching. Advances in chemistry and chemical technology. 2020. N 4. P. 150-152.
4. Bykovskij N.A., Kantor E.A., Shulaev N.S., Fanakov V.S. Combined method of processing spent acidic pickling solution for the production of titanium products. Notes of the Mining Institute. 2025. T. 272. N 16446. P. 51-58.
5. Dorofeev Yu. G., Korchagina M.V., Naumenko A.A., Radikajnen L.M. Disposal of waste from etching of metallurgical scale by electrolysis. News from universities. North Caucasus region. Series: Technical Sciences. 2007. N 2. P. 77-81.
6. Rogov V.M., Korchik N.M., Nester A.A. Recovery of etching solutions in a four-chamber electrolyzer. News of Tula State University. Technical Sciences. 2013. N 6. Ch.1. P. 75-83.
7. Kozaderova O.A., Chernova V.Yu. Acid extraction from spent etching solution by diffusion dialysis with anion exchange membrane. Bulletin of Voronezh State University of Engineering Technologies. 2024. N 3. P. 217-222. DOI: 10.20914/2310-1202-2024-3-217-222
8. Krachak A.N., Gruzdeva A.N., Khamizov R.Kh., Dolgonosov A.A. Processing of spent sulfate pickling solution by acid retention on a strongly basic anionite. Sorption and chromatographic processes. 2023. T.22. N 5. P. 684-693. DOI:10.17308/sorpchrom.2022.22/10721
9. Serdyuk V.A., Bolʹshanina S.B.,. Vorobʹyova I.G, Ivchenko V.D. Installation of membrane regeneration of hydrochloric acid. Fundamental and applied research in the field of chemistry and ecology - 2018: materials of the international scientific and practical conference. South-West state univ., Publishing House of ZAO "University Book", Kursk, 2018. P. 186-188.
10. Agrawal A., Naman N., Dubey S.K. A review on regeneration process of waste pickling acid at steel industries. International Journal of Engineering Research and Reviews. 2014. Vol. 2. Issue 4. P. 70-73.
11. Kozaderova O.A., Lyapina T.I. Diffusion dialysis of an aqueous hydrochloric acid solution of ferric (III) chloride using a heterogeneous Ralex AMH-PP anion exchange membrane. Sorption and chromatographic processes. 2024 T.24. N 5. P. 775-785. DOI: 10.17308/ sorpchrom.2024.24/12516
12. Shebarshova I.M., Levashova E.V., Taranin I.V., Lasʹkov S.A., Kleshchev E.G. Experience in mastering the technology of hydrochloric acid regeneration in a fluidized bed. Steel. 2013. N 9. P. 96-98.
13. Krotova V.M., Povorov A.A., Lipin A.G., Lipin A.A. Regeneration of the spent pickling solution. Increasing energy and resource efficiency, environmental and technological safety of processes and devices in chemical and related industries: a collection of scientific papers of the international scientific and technical symposium dedicated to the 120th anniversary of the birth of P. G. Romankov (ISTS “EESTE-2024”): T. 2. M.: FGBOU VO “RSU im. A. N. Kosygina", 2024. P. 132-134.
14. Levinskij M.I., Mazanko A.F., Novikov I.N. Hydrogen chloride and hydrochloric acid. M.: Khimiya, 1985. 160 p.
15. Sanap P.P., Mahajan Y.S. Ethyl alcohol - water separation by extractive distillation: Simulation using Aspen Plus™ and experimental validation. ChemChem Tech[Izv. Vyssh. Uchebn. Zaved. Khim. Khim. Tekhnol.]. 2024. V. 67. N 3. P. 86-93. DOI: 10.6060/ivkkt.20246703.6914.
16. Protasova N.M., Povorov A.A., Lipin A.A., Lipin A.G. Study of sorption of ammonium ions on a mixed layer of ion exchangers under static conditions. Modern high technology. Regional application. 2025. N 4. P. 137-142. DOI:10.6060/snt.20258404.00018.
Опубликован
2026-05-27
Как цитировать
Витальевна, К., Александрович, П., Геннадьевич, Л., & Александрович, Л. (2026). ИЗВЛЕЧЕНИЕ СОЛЯНОЙ КИСЛОТЫ ИЗ ОТРАБОТАННОГО ТРАВИЛЬНОГО РАСТВОРА МЕТОДОМ ЭКСТРАКТИВНОЙ ДИСТИЛЛЯЦИИ. Современные наукоёмкие технологии. Региональное приложение, 86(2), 100-105. извлечено от https://snt-isuct.ru/article/view/7314
Выпуск
Раздел
Инженерно-технически науки, машиностроение и технологии
