公开(公告)号：US20240150235A1

公开(公告)日：2024-05-09

申请号：US18395402

申请日：2023-12-22

Applicant: Massachusetts Institute of Technology

Inventor： Yet-Ming Chiang ,  Leah Ellis ,  Andres Badel

IPC: C04B2/08 ,  B01J19/00

CPC classification number: C04B2/08 ,  B01J19/0033 ,  B01J2219/00029 ,  B01J2219/00033 ,  C04B2290/20

Abstract: Reaction schemes involving acids and bases; reactors comprising spatially varying chemical composition gradients (e.g., spatially varying pH gradients), and associated systems and methods, are generally described.

公开(公告)号：US20240132400A1

公开(公告)日：2024-04-25

申请号：US18395376

申请日：2023-12-22

Applicant: Massachusetts Institute of Technology

Inventor： Yet-Ming Chiang ,  Leah Ellis ,  Andres Badel

IPC: C04B2/08 ,  B01J19/00

CPC classification number: C04B2/08 ,  B01J19/0033 ,  B01J2219/00029 ,  B01J2219/00033 ,  C04B2290/20

Abstract: Reaction schemes involving acids and bases; reactors comprising spatially varying chemical composition gradients (e.g., spatially varying pH gradients), and associated systems and methods, are generally described.

公开(公告)号：US20240124987A1

公开(公告)日：2024-04-18

申请号：US18395422

申请日：2023-12-22

Applicant: Massachusetts Institute of Technology

Inventor： Yet-Ming Chiang ,  Leah Ellis ,  Andres Badel ,  Isaac W. Metcalf

IPC: C25B1/22 ,  C04B7/06

CPC classification number: C25B1/22 ,  C04B7/06

Abstract: Chemical reaction devices involving acid and/or base, and related systems and methods, are generally described.

公开(公告)号：US20220064063A1

公开(公告)日：2022-03-03

申请号：US17423467

申请日：2020-01-16

Applicant: Massachusetts Institute of Technology

Inventor： Yet-Ming Chiang ,  Leah Ellis ,  Andres Badel

IPC: C04B2/08 ,  B01J19/00

Abstract: Reaction schemes involving acids and bases; reactors comprising spatially varying chemical composition gradients (e.g., spatially varying pH gradients), and associated systems and methods, are generally described.

公开(公告)号：US12252442B2

公开(公告)日：2025-03-18

申请号：US18395376

申请日：2023-12-22

Applicant: Massachusetts Institute of Technology

Inventor： Yet-Ming Chiang ,  Leah Ellis ,  Andres Badel

IPC: B01J19/00 ,  C04B2/08 ,  C04B7/06

Abstract: Reaction schemes involving acids and bases; reactors comprising spatially varying chemical composition gradients (e.g., spatially varying pH gradients), and associated systems and methods, are generally described. For example, methods comprising producing an acid and a base via electrolysis; dissolving a material comprising calcium using the acid to produce ions comprising calcium in a region of a reactor with a pH of 6 or less; precipitating solid calcium hydroxide from the ions comprising calcium using the base in a region of a reactor with a pH of 10 or higher; and utilizing the calcium hydroxide in a downstream process to form a cement are described.

公开(公告)号：US20240133054A1

公开(公告)日：2024-04-25

申请号：US18395403

申请日：2023-12-22

Applicant: Massachusetts Institute of Technology

Inventor： Yet-Ming Chiang ,  Leah Ellis ,  Andres Badel ,  Isaac W. Metcalt

IPC: C25B1/22 ,  C04B7/06

CPC classification number: C25B1/22 ,  C04B7/06

Abstract: Chemical reaction devices involving acid and/or base, and related systems and methods, are generally described.

公开(公告)号：US20230174396A1

公开(公告)日：2023-06-08

申请号：US17922126

申请日：2021-04-29

Applicant: Massachusetts Institute of Technology

Inventor： Yet-Ming Chiang ,  Leah Ellis

IPC: C02F1/461 ,  C22B7/00 ,  C22B3/04 ,  C22B26/20 ,  C22B4/02 ,  C22B1/00 ,  C22B3/22

CPC classification number: C02F1/4618 ,  C22B7/006 ,  C22B3/045 ,  C22B26/20 ,  C22B4/02 ,  C22B1/005 ,  C22B3/22

Abstract: Disclosed herein are methods of using reactor outputs to purify materials. For example, methods of using acid and/or base produced in a reactor to purify materials (e.g., limestone, dolomite, waste streams, and/or ash) are described herein. Related systems are also described.

公开(公告)号：US20250100927A1

公开(公告)日：2025-03-27

申请号：US18971207

申请日：2024-12-06

Applicant: Massachusetts Institute of Technology

Inventor： Yet-Ming Chiang ,  Leah Ellis ,  Andres Badel

IPC: C04B2/08 ,  B01J19/00 ,  C04B7/06

Abstract: Reaction schemes involving acids and bases; reactors comprising spatially varying chemical composition gradients (e.g., spatially varying pH gradients), and associated systems and methods, are generally described.

公开(公告)号：US12252795B2

公开(公告)日：2025-03-18

申请号：US18395422

申请日：2023-12-22

Applicant: Massachusetts Institute of Technology

Inventor： Yet-Ming Chiang ,  Leah Ellis ,  Andres Badel ,  Isaac W. Metcalf

IPC: C25B1/01 ,  C04B7/06 ,  C25B1/22

Abstract: Chemical reaction devices involving acid and/or base, and related systems and methods, are generally described.

公开(公告)号：US20230330724A1

公开(公告)日：2023-10-19

申请号：US18017114

申请日：2021-07-21

Applicant: Massachusetts Institute of Technology ,  Carnegie Mellon University

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

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

CPC classification number: B09B3/70 ,  C25D17/12 ,  C25D3/46 ,  C25D3/48 ,  C25D3/50 ,  C25D5/48 ,  B09B2101/30

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.