公开(公告)号：US20230019776A1

公开(公告)日：2023-01-19

申请号：US17791159

申请日：2021-01-14

Applicant: BL TECHNOLOGIES, INC.

Inventor： DAVID BISHKIN

IPC: C22B3/42 ,  B01J39/05 ,  B01J47/10 ,  B01J47/026 ,  B01J49/10 ,  C22B3/02 ,  C22B26/12

Abstract: Systems and methods use ion exchange to extract lithium from a lithium-containing feed solution such as a salar brine. Lithium ions are loaded into an ion exchange resin and then eluted while recharging the resin. Sodium hydroxide or sodium bicarbonate may be used to recharge the resin but are not directly mixed with the lithium-containing feed solution. An eluate stream is produced containing lithium hydroxide or lithium bicarbonate. Lithium hydroxide can be precipitated as lithium hydroxide or in a hydrate form. Lithium bicarbonate may be converted to lithium carbonate. The system and method optionally includes processing an eluate stream to recover one or more compounds for re-use in regenerating the resin bed.

公开(公告)号：US09643175B2

公开(公告)日：2017-05-09

申请号：US14116011

申请日：2013-11-06

Applicant: Renix Inc.

Inventor： Christine Haas ,  David Andrew Prince ,  Amarjeet Bassi

IPC: B01J47/10 ,  B01J49/00 ,  B01J47/026 ,  C02F1/42 ,  B01J8/20 ,  B01J8/28 ,  B01J8/38 ,  B01J49/10 ,  B01J49/50

CPC classification number: B01J47/10 ,  B01J8/20 ,  B01J8/28 ,  B01J8/388 ,  B01J47/026 ,  B01J49/10 ,  B01J49/50 ,  B01J2208/00592 ,  B01J2208/00601 ,  C02F1/42

Abstract: A novel apparatus for an ion exchange system is provided. The apparatus comprises a first column for housing a first fluidized bed through which particles are flowed countercurrently to an ion-containing fluid to yield ion-loaded particles, a second column through which the ion-loaded particles are flowed countercurrently to an eluent fluid to yield regenerated particles, and a transport section which transfers the regenerated particles for re-introduction into the first column to repeat the ion exchange cycle in a continuous manner. A continuous method of ion exchange is also provided.

公开(公告)号：US10933371B2

公开(公告)日：2021-03-02

申请号：US16493647

申请日：2018-06-07

Applicant: SEIBU GIKEN CO., LTD.

Inventor： Hiroshi Okano

IPC: B01D53/06 ,  B01J20/28 ,  B01D53/83 ,  B01J49/10 ,  B01J41/07 ,  B01J47/11 ,  B01J49/57 ,  C01B32/50 ,  B01D53/02 ,  B01D53/62 ,  B01D53/96 ,  B01J20/26 ,  B01J20/34 ,  B01J41/12

Abstract: An energy efficient and durable thermal swing type carbon dioxide recovery and concentration device can be made smaller and use low-temperature heat waste of 100° C. or less. A honeycomb rotor carries adsorption particles having a sorption capacity for carbon dioxide. The rotor is rotated in a sealed casing divided into at least an sorption zone and a desorption zone and is brought into contact with material gas that contains carbon dioxide in a state wherein the honeycombs in the sorption zone are moist so as to adsorb the carbon dioxide while carrying out evaporative cooling of water. Then, the honeycombs that have adsorbed the carbon dioxide are moved to the desorption zone and brought into contact with low pressure vapor so as to desorb high concentration carbon dioxide. Thus, it is possible to continuously recover carbon dioxide at a high recovery rate and high concentration.

公开(公告)号：US20200001233A1

公开(公告)日：2020-01-02

申请号：US16493647

申请日：2018-06-07

Applicant: SEIBU GIKEN CO., LTD.

Inventor： Hiroshi OKANO

IPC: B01D53/83 ,  B01D53/02 ,  B01D53/62 ,  B01D53/96 ,  B01D53/06 ,  B01J20/26 ,  B01J20/28 ,  B01J20/34 ,  C01B32/50 ,  B01J41/07 ,  B01J41/12 ,  B01J47/11 ,  B01J49/10 ,  B01J49/57

Abstract: An energy efficient and durable thermal swing type carbon dioxide recovery and concentration device can be made smaller and use low-temperature heat waste of 100° C. or less. A honeycomb rotor carries adsorption particles having a sorption capacity for carbon dioxide. The rotor is rotated in a sealed casing divided into at least an sorption zone and a desorption zone and is brought into contact with material gas that contains carbon dioxide in a state wherein the honeycombs in the sorption zone are moist so as to adsorb the carbon dioxide while carrying out evaporative cooling of water. Then, the honeycombs that have adsorbed the carbon dioxide are moved to the desorption zone and brought into contact with low pressure vapor so as to desorb high concentration carbon dioxide. Thus, it is possible to continuously recover carbon dioxide at a high recovery rate and high concentration.