This is an introduction to a new wet hydrochloric acid recovery process that replaces the conventional roasting method.
The waste acid treatment equipment is a process that recovers hydrochloric acid and iron oxide from the ferric chloride solution discharged from the steel acid washing process. Traditionally, thermal decomposition methods using combustion gases, such as the spray roasting method (Rusner method) and fluidized roasting method (Rulgi method), were utilized, but our process conducts all reactions in the liquid phase. Additionally, this process can also be applied to recover hydrofluoric acid from iron fluoride. 【Features】 - No exhaust gas is produced, eliminating the need for exhaust gas treatment for NOx, HCl, dust, etc. - Easy to start and stop operations due to the liquid phase reaction. - Uses steam as the heat source, eliminating the need for fuel. - Energy-saving compared to conventional methods. - The concentration of recovered hydrochloric acid can exceed the azeotropic composition. - Requires a small installation space. *For more details, please refer to the PDF document or feel free to contact us.
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【Examples of Application】 ■ Regeneration of steel pickling waste liquid (ARP) ■ Treatment of etching waste liquid ■ Recovery of hydrofluoric acid from iron fluoride using the process is also possible *For more details, please refer to the PDF document or feel free to contact us.
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For more details, please refer to the PDF document or feel free to contact us.
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We provide solution services to solve our customers' environmental issues. We are active in various industries, including the chemical industry, energy industry, steel industry, and food and pharmaceutical industries, with the aim of offering engineering and unit processes related to the environment.