LOW-CONDUCTIVITY BOEHMITE AND PREPARATION METHOD THEREFOR

Title:

LOW-CONDUCTIVITY BOEHMITE AND PREPARATION METHOD THEREFOR

Document Type and Number:

WIPO Patent Application WO/2023/024989

Kind Code:

A1

Abstract:

A low-conductivity boehmite and a preparation method therefor. The conductivity of the boehmite is <15 μs/cm. The method comprises: adding a sulfate to an aqueous precursor solution for preparing boehmite, followed by a hydrothermal reaction, and subjecting the resulting slurry to suction filtration, washing and drying to obtain the low-conductivity boehmite. By means of adding the sulfate, the conductivity of the product boehmite is reduced from 50 μs/cm or more to 15 μs/cm or less, and the content of divalent metal ions in the boehmite product can also be significantly reduced.

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Inventors:

ZHANG KEKE (CN)
LIU JINCHENG (CN)
WANG SHAOHUI (CN)
JIANG XUEXIN (CN)

Application Number:

PCT/CN2022/112909

Publication Date:

March 02, 2023

Filing Date:

August 17, 2022

Export Citation:

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Assignee:

ANHUI ESTONE MATERIAL TECH CO LTD (CN)

International Classes:

C01F7/02; C01F7/30; H01M50/431

Foreign References:

JP2007223836A	2007-09-06
CN101704538A	2010-05-12
CN105883871A	2016-08-24
CN113479919A	2021-10-08
CN1579941A	2005-02-16

Attorney, Agent or Firm:

HEFEI ZHONG BO ZHIXIN INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)

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