Title:
APPLICATIONS OF CARBOXYLIC COMPOUND SERVING AS EXTRACTING AGENT AND METAL ION EXTRACTION METHOD
Document Type and Number:
WIPO Patent Application WO/2021/238738
Kind Code:
A1
Abstract:
Disclosed are applications of a carboxylic compound serving as an extracting agent and a metal ion extraction method. The carboxylic compound is provided with the structure as represented by formula I. The extracting agent as represented by formula I is characterized by a secondary atom at position α of the carboxyl group, in distinction from a primary carbon carboxylic acid at position α and a tertiary carbon carboxylic acid at position α, the presence of a secondary carbon carboxylic acid provides a proper steric hindrance, provides improved selectivity with respect to ions, and provides a high separation coefficient, low stripping acidity, and high load rate when used for the extraction and separation of metal ions; moreover, the carboxylic compound of formula I has great stability and low aqueous solubility, allows an extraction process to be stable, reduces environmental pollution, reduces costs, and provides significant application prospects.
Inventors:
WANG XUE (CN)
Application Number:
PCT/CN2021/094590
Publication Date:
December 02, 2021
Filing Date:
May 19, 2021
Export Citation:
Assignee:
BOTREE CYCLING SCI & TECH CO LTD (CN)
International Classes:
C22B3/32; C22B7/00; C22B23/00; C22B47/00; C22B59/00
Foreign References:
| SU465900A1 | 1978-07-30 | |||
| US3507645A | 1970-04-21 | |||
| US4169809A | 1979-10-02 | |||
| CN101665426A | 2010-03-10 | |||
| CN110408777A | 2019-11-05 | |||
| CN110339592A | 2019-10-18 | |||
| CN110029226A | 2019-07-19 | |||
| CN93112500A | 1993-07-23 |
Other References:
YANLIANG WANG DEQIAN ET AL., SEPARATION AND PURIFICATION TECHNOLOGY, vol. 82, 2011, pages 197 - 201
ACTA CHIMICA SINICA, vol. 44, 1986, pages 590 - 596
ACTA CHIMICA SINICA, vol. 44, 1986, pages 590 - 596
Attorney, Agent or Firm:
BEYOND ATTORNEYS AT LAW (CN)
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