Method of recycling a component with rare earth element recovery
US-2024076760-A1 · Mar 7, 2024 · US
Use of novel compounds for selectively extracting rare earths from aqueous solutions including phosphoric acid and associated extraction method
US10934604B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10934604-B2 |
| Application number | US-201916559972-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 4, 2019 |
| Priority date | May 7, 2015 |
| Publication date | Mar 2, 2021 |
| Grant date | Mar 2, 2021 |
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- Title
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- Abstract
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Abstract
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The invention also relates to a method for recovering at least one rare earth using said compound, as well as to specific compounds as such.
First claim
Opening claim text (preview).
The invention claimed is: 1. A compound of formula (I-b): wherein R 1 and R 2 are, independently of each other, a hydrogen atom, a C 1 to C 12 aliphatic hydrocarbon group, saturated or unsaturated, linear or branched, or a C 3 to C 8 cyclic aliphatic hydrocarbon group, saturated or unsaturated, optionally branched, one of R 5 and R 6 is a hydroxyl group —OH and the other one of R 5 and R 6 is a C 1 to C 12 aliphatic hydrocarbon group, saturated or unsaturated, linear or branched, a C 3 to C 8 cyclic hydrocarbon group, saturated or unsaturated, optionally branched, a hydroxyl group —OH or an alkoxyl group —OR, with R being a C 1 to C 12 aliphatic hydrocarbon group, saturated or unsaturated, linear or branched, or a C 3 to C 8 cyclic aliphatic hydrocarbon group, saturated or unsaturated, optionally branched, and R7 and R 8 are, independently of each other, a hydrogen atom, a C 1 to C 12 aliphatic hydrocarbon group, saturated or unsaturated, linear or branched, or a C 3 to C 8 cyclic aliphatic hydrocarbon group, saturated or unsaturated, optionally branched. 2. The compound according to claim 1 , wherein one of R 5 and R 6 is a hydroxyl group —OH and the other one of R 5 and R 6 is a C 4 to C 10 alkyl group, linear or branched, or an alkoxyl group —OR, with R being a C 2 to C 8 alkyl group, linear or branched, and R 7 and R 8 are, independently of each other, a C 4 to C 10 alkyl group, linear or branched. 3. The compound according to claim 2 , wherein one of R 5 and R 6 is a hydroxyl group —OH and the other one of R 5 and R 6 is a C 8 alkyl group, linear or branched, or an alkoxyl group —OR, with R being a C 4 alkyl group, linear or branched, and/or R7 and R 8 are, independently of each other, a C 8 alkyl group, linear or branched.
Assignees
Inventors
Classifications
Recycling · CPC title
- C22B59/00Primary
Obtaining rare earth metals · CPC title
- C22B3/06Primary
in inorganic acid solutions {, e.g. with acids generated in situ; in inorganic salt solutions other than ammonium salt solutions} · CPC title
by liquid-liquid extraction using organic compounds · CPC title
Esters of acyclic acids which can have further substituents on alkyl · CPC title
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Frequently asked questions
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- What does patent US10934604B2 cover?
- The invention also relates to a method for recovering at least one rare earth using said compound, as well as to specific compounds as such.
- Who is the assignee on this patent?
- Commissariat Energie Atomique, Centre Nat Rech Scient, Univ Montpellier
- What technology area does this patent fall under?
- Primary CPC classification C22B59/00. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Mar 02 2021 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).