System and process for converting lithium hydroxide into lithium sulfide
AssigneeKellogg Brown & Root LLC
InventorsMatthew James Griffiths, Neeraj Agrawal, Amitkumar Arunkumar Parekh, Gautham Krishnaiah, Narinder Singh Duggal, Kaushik A. Gandhi
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Abstract
A process and system for continuously converting anhydrous LiOH into Li2S by reacting with a sulfur containing gas such as H2S using a fluidized bed reactor with one or more internals. The process may include a solids recovery system to recycle fines and excess sulfur containing gas to the reactor. The process may include a side stripper to strip Li2S product of excess sulfur containing gas and moisture that can be recycled to the fluidized bed reactor.
Claims23
A system for producing Li2S comprising:
- a fluidized bed reactor comprising one or more internals, the fluidized bed reactor configured to continuously receive a feed of anhydrous LiOH and contact the feed of anhydrous LiOH with hydrogen sulfide (H2S) to produce lithium sulfide (Li2S).
A method of forming Li2S comprising:
- providing a fluidized bed reactor comprising one or more internals;
- continuously feeding anhydrous lithium hydroxide (LiOH) to the fluidized bed reactor;
- continuously feeding a hydrogen sulfide (H2S) gas to the fluidized bed reactor;
- and
- contacting the LiOH with the H2S to produce lithium sulfide (Li2S) while flowing the LiOH downward the fluidized bed reactor through the one or more internals.
Dependencies are inferred from the claim text.