Patent · US Active

Use of amino-containing neutral phosphine extractant in extraction and separation of thorium and process of using same

US10081554B2 · kind B2 · utility

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1References

19Claims

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Assignee

Changchun Institute of Applied Chemistry Chinese Academy of Sciences · CN

Inventors

Wuping Liao · Jilin, CN
Yanling Li · Zhejiang, CN
Zhifeng Zhang · Burnaby, CA
Guolong Wu · Shanghai, CN
Youcai Lu · Jilin, CN

Key dates

Filing date	Apr 22, 2015
Grant date	Sep 25, 2018
Priority date	—
Expiry date	Apr 22, 2035

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P10/20
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

The present invention relates to use of an amino-containing neutral phosphine extractant of Formula I in extraction and separation of thorium, and a process of extracting and separating thorium using the amino-containing neutral phosphine extractant of Formula I, wherein, R1 and R2 are each independently selected from the group consisting of C1-C12 alkyl, R3 and R4 are each independently selected from the group consisting of C1-16 alkyl and hydrogen, and n is an integer of 1 to 8.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.