Title:
EXTERNAL-LOOP SLURRY BED REACTION CRYSTALLIZER
Document Type and Number:
WIPO Patent Application WO/2021/163906
Kind Code:
A1
Abstract:
An external-loop slurry bed reaction crystallizer, comprising a riser (1), a degassing zone, and a downcomer. The lower end of the riser (1) is communicated with a gas inlet pipe (11), a liquid inlet pipe (12), and a solid feed pipe (13). The upper end of the riser (1) is communicated with the lower end of the degassing zone, and the top of the degassing zone is open. The upper end of the downcomer and a sidewall of the degassing zone are fixed as an integral whole, and the downcomer is communicated with the interior of the degassing zone. The lower end of the downcomer is provided with at least one hydrocyclone (4), and the downcomer is communicated with the hydrocyclone (4). The upper end of the hydrocyclone (4) is provided with an overflow port, and the lower end is provided with a bottom flow port (42) and a valve (43). The valve (43) is used for controlling the flow of the bottom flow port (42). The overflow port is communicated with the riser (1), so that a crystallization mother liquor containing small particle crystallization products can enter the riser (1) through the overflow port.
Inventors:
HUANG QINGSHAN (CN)
GENG SHUJUN (CN)
CHEN AQIANG (CN)
XIAO HANG (CN)
YANG CHAO (CN)
GENG SHUJUN (CN)
CHEN AQIANG (CN)
XIAO HANG (CN)
YANG CHAO (CN)
Application Number:
PCT/CN2020/075779
Publication Date:
August 26, 2021
Filing Date:
February 18, 2020
Export Citation:
Assignee:
QINGDAO INST BIOENERGY & BIOPROCESS TECH CAS (CN)
INST PROCESS ENG CAS (CN)
INST PROCESS ENG CAS (CN)
International Classes:
B01D9/02
Foreign References:
| CN110732154A | 2020-01-31 | |||
| CN110508219A | 2019-11-29 | |||
| CN106334500A | 2017-01-18 | |||
| CN106345375A | 2017-01-25 | |||
| CN110465111A | 2019-11-19 | |||
| EP0299597A2 | 1989-01-18 |
Attorney, Agent or Firm:
BEIJING GAOWO LAW FIRM (CN)
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