Adsorbent for rare earth element and method for recovering rare earth element
US-2016010178-A1 · Jan 14, 2016 · US
Ion exchange resin and method for adsorbing and separating metal
US9863018B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9863018-B2 |
| Application number | US-201515321286-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 26, 2015 |
| Priority date | Jun 26, 2014 |
| Publication date | Jan 9, 2018 |
| Grant date | Jan 9, 2018 |
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Abstract
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Provided is a system for efficiently recovering trace metal from a large amount of a raw material, such as when trace metal is recovered from nickel oxide ore. This ion exchange resin has, on a carrier, an amide derivative represented by the following general formula. In the formula, R1 and R2 represent the same or different alkyl groups, R3 represents a hydrogen atom or an alkyl group, and R4 represents a hydrogen atom or an arbitrary group, other than an amino group, bonded to α carbon as an amino acid. The amide derivative is preferably a glycinamide derivative. The carrier preferably includes a primary amine and/or a secondary amine.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method for adsorbing and separating a metal, the method comprising: applying an acid solution containing one or more metals selected from cobalt, nickel, scandium and rare earth elements to an ion exchange resin to adsorb the metal on the ion exchange resin, and recovering the metal adsorbed on the ion exchange resin, wherein the ion exchange resin has an amide derivative represented by the following general formula (I) on a carrier, and the carrier includes 3-aminopropyl silica gel and/or 3-(ethylenediamino)propyl silica gel: (wherein, R 1 and R 2 each represent the same or different alkyl groups, the alkyl group is optionally a straight chain or a branched chain, R 3 represents a hydrogen atom or an alkyl group, and R 4 represents a hydrogen atom or an arbitrary group other than an amino group bonded to α carbon as an amino acid). 2. The method for adsorbing and separating a metal according to claim 1 , wherein the amide derivative is a glycinamide derivative. 3. The method for adsorbing and separating a metal according to claim 2 , the method comprising adsorbing a metal contained in an acid leaching solution obtained by high pressure acid leaching of nickel oxide ore on the ion exchange resin and recovering the metal adsorbed on the ion exchange resin. 4. The method for adsorbing and separating a metal according to claim 1 , the method comprising adsorbing a metal contained in an acid leaching solution obtained by high pressure acid leaching of nickel oxide ore on the ion exchange resin and recovering the metal adsorbed on the ion exchange resin.
Assignees
Inventors
Classifications
Ion-exchange in which a complex or a chelate is formed; Use of material as complex or chelate forming ion-exchangers; Treatment of material for improving the complex or chelate forming ion-exchange properties (ion-exchange chromatography processes B01D15/36) · CPC title
in inorganic acid solutions {, e.g. with acids generated in situ; in inorganic salt solutions other than ammonium salt solutions} · CPC title
- C22B3/42Primary
by ion-exchange extraction · CPC title
characterised by the use of ion-exchange material in the form of ribbons, filaments, fibres or sheets, e.g. membranes (electrodialysis or electro-osmosis B01D61/42) · CPC title
Recycling · CPC title
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- What does patent US9863018B2 cover?
- Provided is a system for efficiently recovering trace metal from a large amount of a raw material, such as when trace metal is recovered from nickel oxide ore. This ion exchange resin has, on a carrier, an amide derivative represented by the following general formula. In the formula, R1 and R2 represent the same or different alkyl groups, R3 represents a hydrogen atom or an alkyl group, and R4 …
- Who is the assignee on this patent?
- Univ Kyushu Nat Univ Corp, Sumitomo Metal Mining Co
- What technology area does this patent fall under?
- Primary CPC classification C22B3/42. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jan 09 2018 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 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).