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Extraction device for preparation of levofloxacin intermediates

A levofloxacin and extraction device technology, which is applied in the field of levofloxacin intermediate spare extraction devices, can solve the problems of low extraction rate, achieve the effects of improving extraction rate, reducing cost, and reducing stock solution residue

Inactive Publication Date: 2018-06-05
YANCHENG XINANZHOU PHARMA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the shortcoming of the low extraction rate of levofloxacin intermediates in the prior art when they are prepared, and propose a spare extraction device for levofloxacin intermediates

Method used

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  • Extraction device for preparation of levofloxacin intermediates
  • Extraction device for preparation of levofloxacin intermediates
  • Extraction device for preparation of levofloxacin intermediates

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Embodiment Construction

[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.

[0017] refer to Figure 1-3 , a levofloxacin intermediate standby extraction device, comprising a stirring tank 1, the top of the stirring tank 1 is provided with a feed inlet 2, the center of the top of the stirring tank 1 is provided with a motor 3, and the output end of the motor 3 is connected with a stirring shaft 4, The bottom of the stirring shaft 4 is provided with two sets of stirring blades 5, each set of stirring blades 5 is multiple in number, and the plurality of stirring blades 5 are arranged radially on the stirring shaft 4, and a scraper mechanism is arranged between the two sets of stirring blades 5 6. There are at least two sets of scraper mechanism...

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Abstract

The invention relates to the technical field of medicine extraction and in particular relates to an extraction device for preparation of levofloxacin intermediates. The extraction device comprises a stirring tank, wherein a feeding hole is formed in the top of the stirring tank; a motor is arranged in the center of the top of the stirring tank; an output end of the motor is connected with a stirring shaft; two groups of stirring blades are arranged at the bottom of the stirring shaft; a scraper mechanism is arranged between the two groups of stirring blades; the scraper mechanism comprises a sleeve and a connecting rod; the sleeve is connected with the stirring shaft; the connecting rod is inserted into the sleeve; a locking bolt is arranged on the sleeve; the other end of the connecting rod is connected with an arc plate; multiple scraping bars are arranged on the other side of the arc plate; the bottom of the stirring tank is communicated with a delivery pipe; the other end of the delivery pipe is communicated with an evaporator; the top of the evaporator is connected with a cooler; the top of the cooler is connected with a condenser; and the bottom of the condenser is connectedwith a second delivery pipe. According to the extraction device, stock solution residues in the stirring tank can be effectively decreased, and by virtue of circulation of the evaporator, the cooler and the condenser, the stock solution extraction rate is increased.

Description

technical field [0001] The invention relates to the technical field of medicine extraction, in particular to a spare extraction device for levofloxacin intermediates. Background technique [0002] Levofloxacin is a quinolone antibiotic. It is the L-body of ofloxacin, and its antibacterial activity is about 2 times that of ofloxacin. This product has the characteristics of broad antibacterial spectrum and strong antibacterial effect. It has strong antibacterial effect on most Enterobacteriaceae bacteria, such as Klebsiella pneumoniae, Proteus, Salmonella typhi, Shigella, and some Escherichia coli. Active, also has good antibacterial effect on some Staphylococcus, Streptococcus pneumoniae, Influenza Bacillus, Pseudomonas aeruginosa, Neisseria gonorrhoeae, Chlamydia, etc. [0003] When the existing medicine is processed, the extraction rate of the medicine is low, and too many raw materials are required to prepare a medicine, which leads to an increase in production cost. C...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D11/00B01D5/00B01F7/18B01D1/00B01D1/30B01D29/58
CPCB01D11/00B01D1/0017B01D1/30B01D5/006B01D5/0063B01D5/0072B01D5/0084B01D29/58
Inventor 陈诚乐
Owner YANCHENG XINANZHOU PHARMA
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