ХИМИЧЕСКАЯ И ФИЗИКО – ХИМИЧЕСКАЯ ХАРАКТЕРИСТИКИ ОТРАБОТАННОЙ СЕРНОЙ КИСЛОТЫ, ОБРАЗОВАННОЙ В ПРОЦЕССЕ ПРОИЗВОДСТВА КАУСТИЧЕСКОЙ СОДЫ.

Background. Waste sulfuric acid is generated in many chemical and petrochemical production processes, and its quantities are quite significant. For the further development of modern chemical and petrochemical production, a detailed study of its characteristics is required. Purpose; The purpose of this work is a detailed study of the chemical and physico-chemical properties of waste sulfuric acid from the production of caustic soda. Methodology; To study the phase composition, the occurring compositional and structural changes and the identification of initial samples and solid products, physicochemical research methods were used, such as: spectrometer (ICP), thermography (DCK), IR spectroscopy, scanning electron microscopy and others. Originally; For the first time, the chemical and physico-chemical properties of waste sulfuric acid from caustic soda production were studied depending on technological parameters. Findings;.The chemical composition of spent sulfuric acid was studied, which showed that it is contaminated with chlorine and diluted with water, and chlorine can be in absorbed or chemically bound form. The rheological properties of this acid depending on temperature were also studied. [ABSTRACT FROM AUTHOR]