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METHOD OF RECOVERING CRYSTAL COMPONENT AND CRYSTAL COMPONENT RECOVERING SYSTEM 发明申请

2023-12-13 1940 849K 0

专利信息

申请日期 2025-07-18 申请号 WOJP06310330
公开(公告)号 WO2007135738A1 公开(公告)日 2007-11-29
公开国别 WO 申请人省市代码 全国
申请人 Mitsubishi Kakoki Kaisha Ltd; YAMASHITA Akio; HUJIWARA Akira
简介 A method of recovering a crystal component, in which without circulatory use of a filtrate or washing filtrate as a washing liquid and without circulatory use thereof in re-slurrying of crystal component, a reaction solvent can be efficiently removed from the crystal component; and a relevant crystal component recovering system. There is provided a method of recovering a crystal component, comprising the steps of feeding a crystal-component-containing slurry produced by reactor (50) into first rotary filter (23) where the crystal component is recovered as a cake layer on a filter cloth surface thereof, washing the cake with 95% acetic acid to thereby remove mainly impurities from the crystal component and feeding the obtained crystal component into re-slurrying tank (24); feeding pure water alone into the re-slurrying tank (24) to thereby obtain a re-slurry from the cake; and feeding the re-slurry into second rotary filter (30) where the crystal component is recovered as a cake layer on a filter cloth surface thereof and washing the cake layer with pure water to thereby remove acetic acid.


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