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Clean Process To Utilize The Potassium-Containing Phosphorous Rock With Simultaneous Hcl And Kcl Production Via The Steam-Mediated Reactions, Yunshan Wang, Lufang Shi, Houli Li, Yixiao Wang, Zhiying Wang, Xuebin An, Mingzhu Tang, Gang Yang, Jun He, Jing Hu, Yong Sun

Research outputs 2022 to 2026

In this paper, a clean process based on the steam-mediated reactions for simultaneous HCl and KCl production using the potassium (K)-containing phosphorous rock as a precursor is proposed. Through hydrochloric acid (HCl) leaching, not only the generation of H₃PO₄and CaCl₂ (via further precipitation) were realized but also the acid-insoluble residue [phosphorous-rock slag (PS)] rich in elements, that is, K, Al, Si, and so on, in the form of microcline (KAlSi₃O₈) and quartz (SiO₂) was obtained and became readily available for further HCl and KCl generation. Over 95 % of …