METHOD FOR EXTRACTION AND SEPARATION OF RARE EARTH ELEMENTS
This Laos Patent “METHOD FOR EXTRACTION AND SEPARATION OF RARE EARTH ELEMENTS” is a public DIP intellectual-property record, filed by RARE EARTH SALTS SEPARATION AND REFINING, LLC on 2015-08-14; current status: Awaiting formal examination. Identifiers include application No. P/483; DIP id LAP483; protection kind Patent - PCT National Phase. Key dates: publication 2026-02-20. Classification: C01F 17/00. Inventor(s)/designer(s): BREWER, Joseph. Abstract hint: A method for extracting and separating rare earth elements comprising providing a rare earth-containing ore or tailings, grinding the rare…. Use LaoBiz.com to hop between this IP record, related filings by the same applicant, and the matched company profile when present.
P/483
Mark
Key facts
- Type
- Patent
- App. no.
P/483- Status
- Awaiting formal examination
- Applicant
- RARE EARTH SALTS SEPARATION AND REFINING, LLC
- Agent
- Lao Trademark Agency (LAO IP AGENCY)
- Filing date
- 2015-08-14
- Publication
- 2026-02-20
- Protection kind
- Patent - PCT National Phase
- Priority
- US · 62/037,714 · 2014-08-15
- Applicant address
- RARE EARTH SALTS SEPARATION AND REFINING, LLC · 1111 18th Street SW Minot, North Dakota 58701 · US
- Agent address
- Lao Trademark Agency (LAO IP AGENCY) · LLC Bldg, Nongbone Road, Ban Nongbong,Saysettha District, P.O.Box 925, Vientiane, LAO P.D.R. Tel: +(856 21) 264866, 264 877; Fax: +(856 21) 264344 E-mail: laotrmar@laotel.com; ksayavon@laotel.com Website: www.laoip.org · LA
- Nice / IPC classes
- C01F 17/00
- Goods / services
- —
Process
Steps follow the current public status-
Filed
-
Formal examination In progress
-
Substantive examination
-
Published
-
Granted
Related records
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Abstract
A method for extracting and separating rare earth elements comprising providing a rare earth-containing ore or tailings, grinding the rare earth-containing ore to form powdered ore; leaching powered ore with at least one mineral acid, forming a leach solution comprising at least one metal ion, rare earth elements and a solid material, separating solid material from the leach solution to form aqueous-metal concentrate, precipitating the aqueous-metal concentrate to selectively remove the metal ion from the leach solution and obtain a precipitate of rare earth elements; heating the precipitate of rare earth elements in air to form oxide of rare earth elements, mixing the oxide of rare earth elements with an ammonium salt and heating in a dry air/nitrogen, forming a mixture of anhydrous rare earth salts in an aqueous solution, and separating rare earth elements from the aqueous solution by means of an electrowinning process.
A method for extracting and separating rare earth elements comprising providing a rare earth-containing ore or tailings, grinding the rare earth-containing ore to form powdered ore; leaching powered ore with at least one mineral acid, forming a leach solution comprising at least one metal ion, rare earth elements and a solid material, separating solid material from the leach solution to form aqueous-metal concentrate, precipitating the aqueous-metal concentrate to selectively remove the metal ion from the leach solution and obtain a precipitate of rare earth elements; heating the precipitate of rare earth elements in air to form oxide of rare earth elements, mixing the oxide of rare earth elements with an ammonium salt and heating in a dry air/nitrogen, forming a mixture of anhydrous rare earth salts in an aqueous solution, and separating rare earth elements from the aqueous solution by means of an electrowinning process.
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