公开(公告)号：US20230330724A1

公开(公告)日：2023-10-19

申请号：US18017114

申请日：2021-07-21

申请人： Massachusetts Institute of Technology ,  Carnegie Mellon University

发明人： Yet-Ming Chiang ,  Leah Ellis ,  Sophie C. Coppieters 't Wallant ,  Sonia Zhang ,  Venkatasubramanian Viswanathan ,  Elsa A. Olivetti ,  Michael Joseph Wang

IPC分类号： B09B3/70 ,  C25D17/12 ,  C25D3/46 ,  C25D3/48 ,  C25D3/50 ,  C25D5/48

CPC分类号： B09B3/70 ,  C25D17/12 ,  C25D3/46 ,  C25D3/48 ,  C25D3/50 ,  C25D5/48 ,  B09B2101/30

摘要： Disclosed herein are systems and methods for processing ash. For example, in certain embodiments, the method comprises dissolving at least a portion of ash in acid. In some embodiments, the acid is produced in a reactor. In some embodiments, dissolving at least a portion of ash in acid produces refined silica (SiO2) (e.g., amorphous silica, substantially pure silica, and/or a substantial amount of silica). According to certain embodiments, the ash can be further processed (e.g., using electro winning, pH-based precipitation, and/or electrorefining) to obtain other components instead of or in addition to refined silica.