Method for recovering manganese dioxide from milbemycin oxime filter residues

A technology of manganese dioxide and milbexime, which is applied in the field of recycling manganese dioxide, can solve problems such as increased production costs, large usage, and potential safety hazards, and achieve the goals of avoiding exothermic reaction, reducing production costs, and eliminating potential safety hazards Effect

Active Publication Date: 2021-02-02
LIVZON GROUP FUZHOU FUXING PHARMACEUTICAL CO LTD
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The manganese dioxide in the filter residue still has a certain oxidation activity, and some products and acetone liquid remain in the filter residue. The manganese dioxide in the filter residue continues to react with the residual material liquid and undergoes heat release, and it is easy to ignite the acetone gas with the exothermic reaction. Phenomenon, there is a serious safety hazard
At the same time, manganese dioxide is used in a large amount as an oxidant, and the price of manganese dioxide is relatively high
If the mangane

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Manganese dioxide oxidation method is used to prepare milbemycin oxime by using the desorption solution containing milbemycin A3 and milbemycin A4 components, and finally obtain the filtrate and filter residue, and the obtained filter residue is tested for temperature and combustible gas concentration, and then averagely divided into Two groups, one group is placed at normal temperature, and the other group is for the recovery of manganese dioxide.

[0018] Manganese dioxide is placed in the container, and ethanol is used for top washing. The volume of ethanol used is 3 times the volume of the filter residue, and then deionized water is passed into the container for top washing. The volume of deionized water used is the volume of the filter residue. 3 times, after draining the deionized water used for top washing, manganese dioxide is recovered;

[0019] The recovered manganese dioxide is tested for combustible gas concentration;

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a method for recovering manganese dioxide from milbemycin oxime filter residues, which belongs to the technical field of manganese dioxide recovery and sequentially uses ethanol and deionized water to perform top washing on the manganese dioxide filter residues. According to the method, manganese dioxide can be effectively recycled from the filter residues generated in milbemycin oxime production through a manganese dioxide oxidation method, acetone and residual products in the filter residues can be effectively removed, the manganese dioxide is stopped from continuingto react with the products, combustible gas in the filter residues is removed, and potential safety hazards caused by reaction heat release are thoroughly avoided; meanwhile, the obtained manganese dioxide still has certain oxidation activity and can be reutilized after being recycled and treated, the production cost of enterprises is effectively reduced, the used ethyl alcohol and deionized waterare used for top washing, the raw materials are easy to obtain and low in price, the ethyl alcohol and the deionized water are non-toxic, and secondary pollution cannot be caused.

Description

technical field [0001] The invention belongs to the technical field of manganese dioxide recovery, and in particular relates to a method for recovering manganese dioxide from the filter residue produced from milbexime. Background technique [0002] Milbemycin is an oxime derivative of milbemycin A3 and A4, a macrolide anti-endoparasite drug. Milbexime has a broad-spectrum anti-parasitic effect, and has a good killing effect on internal and external parasites, especially nematodes and arthropods. It is usually used to prevent dirofilariasis and control dogs and cats caused by nematodes and hookworms. Diseases and canine whipworm disease, etc. [0003] In the process of preparing milbexime products, it is necessary to use a large amount of active manganese dioxide oxidizing agent to oxidize the intermediate product milbeketone to generate milbexime. In the oxidation process, the solvent is acetone, and heat will be released during the reaction. After the reaction is complete...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C01G45/02
CPCC01G45/02Y02P10/20
Inventor 张承兵蔡嘉旺杨为龙王为民
Owner LIVZON GROUP FUZHOU FUXING PHARMACEUTICAL CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap