Absorption, Extraction . Calculation, examples, tasks: a tutorial" by B. C. Shchetinina is an indispensable resource for students and specialists in the field of chemical technology and engineering. In this tutorial, the author is deeply immersed in the key processes of absorption and extraction, which play an important role in various industries, from petrochemistry to ecology. This publication will become a reliable assistant for those who seek not only to master the theoretical aspects, but also to learn how to apply them in practice. The book covers a wide range of topics, ranging from the basics of absorption and extraction to complex calculations and examples of real-world problems. In. C. Schetinin offers readers not only theoretical calculations, but also practical tasks that will help to consolidate the knowledge gained. Each section is provided with clear explanations and illustrations, which makes the material accessible and understandable even for those who are just starting their way in this area. This manual will be especially useful for students of technical universities, graduate students and young professionals working in the field of chemical technology, as well as for anyone interested in the processes of separation of substances. If you study such disciplines as chemical engineering, processing technologies, ecology or even biochemistry, then this book will become a real treasure for you. It will help not only to prepare for exams, but also to deepen their knowledge, which is especially important in the rapidly changing world of technology. The topics raised in the book cover not only theoretical aspects, but also practical applications of absorption and extraction in industry. The author focuses on the importance of these processes for the effective separation of components in various mixtures, which is critical for improving product quality and reducing costs. The reader will be able to see how theoretical knowledge is applied in real-world settings, which makes learning more fun and productive. Style B. C. Shchetinin is distinguished by clarity and accessibility, which makes it easy to perceive even the most complex concepts. Its approach to learning is based on the practical application of knowledge, which makes this manual not only a teaching, but also a practical guide. The author is also known for his other work in the field of chemical technology, and his experience and knowledge make this book especially valuable. If you are looking for a tutorial that will help you understand the complex processes of absorption and extraction, as well as learn how to apply this knowledge in practice, then “Absorption, extraction . Calculation, examples, tasks: tutorial" is what you need. This publication will become your reliable assistant in learning and work, and will also open new horizons in understanding chemical processes. Do not miss the opportunity to deepen your knowledge and skills in the field of chemical technology with this unique book It will be your faithful companion on the way to professional success and will help you become an expert in the field of absorption and extraction.