STUDY OF THE PROCESS OF OXIDATION OF SULFUR DIOXIDE IN A CONTACT APPARATUS IN THE PRODUCTION OF SULFURIC ACID. SOUTH KAZAKHSTAN SCIENCE HERALD, [S. l.], n. 2, p. 3–9, 2026. DOI: 10.54251/2616-6429.2025.02.0001nu. Disponível em: https://nu.auezov.edu.kz/index.php/nu/article/view/229.. Acesso em: 14 nov. 2026.