Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Low-energy recovery system and technology of abamectin extraction solvent

A technology of avermectin and process, applied in the field of low energy recovery system, can solve the problems of energy waste, etc., and achieve the effect of efficient utilization and high efficiency of solvent recovery

Active Publication Date: 2017-03-08
QILU PHARMA INNER MONGOLIA
View PDF2 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Aiming at the deficiencies in the prior art, the present invention provides a recovery system and process of abamectin extraction solvent, to solve the problem of energy waste in the traditional abamectin extraction solvent recovery process

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Low-energy recovery system and technology of abamectin extraction solvent
  • Low-energy recovery system and technology of abamectin extraction solvent
  • Low-energy recovery system and technology of abamectin extraction solvent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A kind of recovery system of abamectin extraction solvent, this system comprises methanol storage tank 1, leaching column 2, crystallization tank 3, methanol vapor buffer tank 4, rectification tower 5, condenser 6 and methanol collection tank 7;

[0037] The discharge port of the methanol storage tank 1 is connected with the feed port of the leaching tank 2, the discharge port of the leaching tank 2 is connected with the feed port of the crystallization tank 3, and the leaching tank 2 and crystallization tank 3 steam outlets are connected with the inlet of methanol vapor buffer tank 4 respectively, and the upper end of described methanol vapor buffer tank 4 is connected with rectifying column 5 and condenser 6 respectively, and described methanol vapor buffer tank The lower end of 4 is connected with methanol collection tank 7; described condenser 6 is connected with methanol collection tank 7, and described methanol collection tank 7 is also connected rectification colu...

Embodiment 2

[0041] A kind of recovery process that utilizes the system of embodiment 1 to Abamectin extraction solvent, comprises steps as follows:

[0042] Methanol is pumped into the extraction column 2 from the methanol storage tank 1 to extract the dry powder of abamectin mycelium, and the extraction solution is transferred to the crystallization tank 3 for crystallization, and the extraction column 2 and crystallization The bottom of the tank 3 is fed with hot steam to heat and evaporate the methanol, and the wet fungus residue of abamectin adsorbed with methanol in the extraction column 2 is heated up to 90-95°C and kept for 2-3 hours; Raise the temperature of the material to 60-70°C and keep it for 2-3 hours, then raise the temperature to 70-80°C and keep it for 4-6 hours;

[0043] The methanol vapor in the leaching column 2 and the crystallization tank 3 is transported to the methanol vapor buffer tank 4 through respective pipelines for buffering, and then the buffered methanol va...

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 relates to a low-energy recovery system and technology of an abamectin extraction solvent. The system comprises a methanol storage tank, an extraction column, a crystallizing tank, a methanol steam buffer tank, a rectifying tower, a condenser and a methanol collecting tank, wherein a control valve is arranged between the methanol steam buffer tank and the condenser; methanol evaporated by the extraction column and methanol evaporated by the crystallizing tank enter the buffer tank through respective pipes and then enter the rectifying tower, and cooling and heating processes are avoided. According to the system and the technology, the solvent recovery efficiency is high, methanol steam produced in an abamectin extract concentration procedure and a bacterium residue based liquor steaming procedure adopting an extraction column directly enters the rectifying tower without condensation, so that energy is efficiently utilized; actual production tests prove that about 70% of methanol steam in the two procedures can enter the tower directly, 20% of steam for solvent recovery can be saved, the circulation amount of cooling water is reduced by about more than 4000 tons / day, and accordingly, the extraction cost of abamectin is reduced.

Description

[0001] Technical field: [0002] The invention relates to a low-energy recovery system and process for abamectin extraction solvent, and belongs to the technical field of pesticide product production. [0003] Background technique: [0004] Abamectin is a new type of anthelmintic with high efficiency, low toxicity, safety, and broad spectrum of insect resistance. repellent effect. Abamectin has the characteristics of broad spectrum, high efficiency, small usage, safety to humans and animals, and no cross-resistance. It is regarded as the best new anti-parasitic drug at home and abroad. Abamectin, one of the most effective pesticides in the world, has a domestic demand of about 4,100 tons and has become a vital product in pesticides. [0005] At present, there are two processes in the extraction process of abamectin that involve the recovery of solvents, namely, the process of concentrating the extract and the process of evaporating the residue of the extraction column. Accor...

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
Patent Type & Authority Applications(China)
IPC IPC(8): C07C29/76C07C29/80C07C31/04
CPCC07C29/76C07C29/80C07C31/04Y02P20/50
Inventor 梁振兵刘世宽
Owner QILU PHARMA INNER MONGOLIA
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com