Title:
CRYSTAL FORM B OF SODIUM ZIRCONIUM CYCLOSILICATE, AND PREPARATION METHOD THEREFOR AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2024/061387
Kind Code:
A2
Abstract:
The present invention belongs to the technical field of medicine, and specifically relates to a crystal form B of sodium zirconium cyclosilicate, and a preparation method therefor and the use thereof. The crystal form B of sodium zirconium cyclosilicate has an X-ray powder diffraction pattern comprising one or more characteristic diffraction peaks at 13.50°±0.2°, 13.80°±0.2°, 15.09°±0.2°, 15.74°±0.2°, 18.77°±0.2°, 20.53°±0.2°, 22.63°±0.2°, 23.23°±0.2°, 23.71°±0.2°, 26.68°±0.2°, 28.60°±0.2°, 28.85°±0.2°, 30.47°±0.2°, and 37.39°±0.2° 2θ. The crystal form B obtained by the preparation method provided in the present invention has a potassium ion exchange capacity equivalent to that of the crystal form ZS-9, and S-shaped coil pipes and baffles are not needed. Therefore, the production cost is significantly saved on, and the method is more suitable for industrial production.
Inventors:
WANG PENG (CN)
YU KUI (CN)
TANG XUESONG (CN)
WANG QINGWEN (CN)
ZHANG WENLING (CN)
LIU GUOJIE (CN)
QIAN GANG (CN)
YU KUI (CN)
TANG XUESONG (CN)
WANG QINGWEN (CN)
ZHANG WENLING (CN)
LIU GUOJIE (CN)
QIAN GANG (CN)
Application Number:
PCT/CN2024/071083
Publication Date:
March 28, 2024
Filing Date:
January 08, 2024
Export Citation:
Assignee:
HANGZHOU GUORUI BIO TECH CO LTD (CN)
Attorney, Agent or Firm:
JJS INTELLECTUAL PROPERTY AGENCY LTD. (CN)
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