Inorganic Chemicals Industry >

2023 , Vol. 55 >Issue 11: 58 - 63

DOI: https://doi.org/10.19964/j.issn.1006-4990.2022-0739

Research & Development

Study on spinning molding and performance of Ti-based lithium ion sieve powder and PVDF resin

  • HU Yue ,
  • MO Hengliang ,
  • LI Tianyu ,
  • PENG Wenjuan ,
  • SUN Guangdong ,
  • XIAO Hongkang ,
  • CHEN Yili ,
  • LI Suoding ,
  • TANG Yang
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  • 1.Beijing Origin Water Membrane Technology Co.，Ltd.，Beijing 101400，China
    2.Urban-Rural Water Environment Technology Research and Developments Center of China Jiaotong Group，Beijing 100029，China
    3.Beijing University of Chemical Technology，Beijing 100029，China

Received date: 2022-12-16

  Online published: 2023-11-16

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Abstract

In order to realize the granulation molding of titanium-based lithium ion sieve（H2TiO3-LIS） powder and large-scale application in lithium extraction from salt lakes，H2TiO3-LIS powder was formed by spinning.The optimal formula and process conditions were determined，the amount of PVDF was accounted for 20% of the total mass of PVDF and H2TiO3-LIS powder，the amount of PVP-K60 was accounted for 80% of the mass of PVDF，the temperature of the solidification bath was 80 ℃，the length of the air section was 20 cm，and the length of the shredding was 3 mm.The granulated adsorbent was used in the lithium extraction test of Golmud Salt Lake brine.The results showed that the mass adsorption capacity of the H2TiO3-LIS particle adsorbent for Li+ was 9.3 mg/g and the volume adsorption capacity was 3.6 g/L，and the operation stability was good.After 30 cycles，the adsorption capacity was 92.5% of the initial adsorption capacity.

Key words： titanium-based lithium ion sieve; lithium extraction from salt lake; PVDF; spinning forming; adsorption capacity; stability

Cite this article

HU Yue , MO Hengliang , LI Tianyu , PENG Wenjuan , SUN Guangdong , XIAO Hongkang , CHEN Yili , LI Suoding , TANG Yang . Study on spinning molding and performance of Ti-based lithium ion sieve powder and PVDF resin[J]. Inorganic Chemicals Industry, 2023 , 55(11) : 58 -63 . DOI: 10.19964/j.issn.1006-4990.2022-0739

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