Processing hard rock lithium minerals or other materials to produce lithium materials and byproducts converted from a sodium sulfate intermediate product
US-2024425381-A1 · Dec 26, 2024 · US
Systems and methods for producing lithium carbonate and uses thereof
US12325641B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12325641-B2 |
| Application number | US-202418816364-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 27, 2024 |
| Priority date | Apr 24, 2024 |
| Publication date | Jun 10, 2025 |
| Grant date | Jun 10, 2025 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
The present disclosure is directed to systems and methods of producing lithium carbonate. The lithium carbonate can be produced by contacting a lithium precursor with a carbon dioxide gas. The lithium carbonate produced from this method can include micron-sized lithium carbonate particles with nano-sized lithium carbonate particles coated on a surface of the micron-sized lithium carbonate particles.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method of producing lithium carbonate comprising: contacting a solid lithium precursor comprising lithium hydroxide with a gas comprising at least 5 wt. % carbon dioxide, thereby converting at least a portion of the solid lithium precursor to lithium carbonate. 2. The method of claim 1 , wherein the solid lithium precursor is milled in a jet mill with an atmosphere comprising the gas. 3. The method of claim 1 , wherein the solid lithium precursor further comprises inorganic lithium salts, organic lithium salts, lithium metals, lithium alloys, lithium oxides, lithium hydroxides, or combinations thereof. 4. The method of claim 1 , wherein the lithium hydroxide is lithium hydroxide monohydrate. 5. The method of claim 1 , wherein the gas comprises at least 25 wt. % carbon dioxide. 6. The method of claim 5 , wherein the gas comprises at least 50 wt. % carbon dioxide. 7. The method of claim 1 , wherein at least 75% of the solid lithium precursor is converted into lithium carbonate. 8. The method of claim 1 , wherein the lithium carbonate comprises micron-sized lithium carbonate particles and nano-sized lithium carbonate particles coated on the micron-sized lithium carbonate particles. 9. The method of claim 8 , wherein the micron-sized lithium carbonate particles have a particle size distribution with a D50 of 1-10 microns. 10. The method of claim 8 , wherein at least a portion of the micron-sized lithium carbonate particles are hollow. 11. The method of claim 1 , wherein the lithium carbonate has a Brunauer-Emmett-Teller (BET) specific surface area of about 2-12 m 2 /g. 12. The method of claim 1 , further comprising drying the lithium carbonate with or without presence of carbon dioxide gas in a fluidized bed. 13. A powder comprising: micron-sized lithium carbonate particles; and nano-sized lithium carbonate particles coated on a surface of the micron-sized lithium carbonate particles. 14. The powder of claim 13 , wherein at least a portion of the micron-sized lithium carbonate particles are hollow. 15. The powder of claim 13 , wherein the micron-sized lithium carbonate particles have a particle size distribution with a D50 of 1-10 microns. 16. The powder of claim 13 , wherein the lithium carbonate has a Brunauer-Emmett-Teller (BET) specific surface area of about 2-12 m 2 /g.
Assignees
Inventors
Classifications
Powder free flowing behaviour · CPC title
obtained by SEM · CPC title
hollow · CPC title
one phase coated with the other · CPC title
Micrometer sized, i.e. from 1-100 micrometer · CPC title
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US12325641B2 cover?
- The present disclosure is directed to systems and methods of producing lithium carbonate. The lithium carbonate can be produced by contacting a lithium precursor with a carbon dioxide gas. The lithium carbonate produced from this method can include micron-sized lithium carbonate particles with nano-sized lithium carbonate particles coated on a surface of the micron-sized lithium carbonate parti…
- Who is the assignee on this patent?
- Albemarle Corp
- What technology area does this patent fall under?
- Primary CPC classification C01D15/08. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jun 10 2025 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).