In recent years, Weixian has maintained a strong focus on ultra-low dioxane technology. Building on the previous Unit 79 Neutralization and Dioxane Stripping process, Weixian has newly developed the Unit 89 Dioxane Multi-stage Stripping process, which achieves a dioxane removal rate of 65% to 99%, depending on specific needs. With this innovative technology, a dioxane content of less than 1 ppm can be reliably achieved, regardless of the raw material’s EO number or initial dioxane level.   In April 2026, Weixian engineers have successfully commissioned an ultra-low dioxane system in South Korea.    Through meticulous optimization of operating parameters, the system achieved an impressive 88.7% removal efficiency, reducing dioxane concentration from 9.88 ppm to 1.13 ppm. The client is highly satisfied with the results, and further reduction in dioxane levels is achievable upon request.   This breakthrough allows any sulphation plant to comply with the strictest SLES dioxane limits demanded by high-end markets, while keeping costs relatively low.