Title:
SYSTEMS AND METHODS FOR PROCESSING ASH
Document Type and Number:
WIPO Patent Application WO/2022/020470
Kind Code:
A8
Abstract:
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.
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Inventors:
CHIANG YET-MING (US)
ELLIS LEAH (CA)
COPPIETERS 'T WALLANT SOPHIE C (US)
ZHANG SONIA (US)
VISWANATHAN VENKATASUBRAMANIAN (US)
OLIVETTI ELSA A (US)
WANG MICHAEL JOSEPH (US)
ELLIS LEAH (CA)
COPPIETERS 'T WALLANT SOPHIE C (US)
ZHANG SONIA (US)
VISWANATHAN VENKATASUBRAMANIAN (US)
OLIVETTI ELSA A (US)
WANG MICHAEL JOSEPH (US)
Application Number:
PCT/US2021/042573
Publication Date:
March 10, 2022
Filing Date:
July 21, 2021
Export Citation:
Assignee:
MASSACHUSETTS INST TECHNOLOGY (US)
UNIV CARNEGIE MELLON (US)
UNIV CARNEGIE MELLON (US)
International Classes:
C01B33/18; C22B7/02; C25C1/20
Attorney, Agent or Firm:
ROGERS, Laura et al. (US)
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