Unlock instant, AI-driven research and patent intelligence for your innovation.

Purification method for Xinjunan

A purification method, the technology of octoprodil, which is applied in the field of pesticides, can solve the problems of complicated process, many impurities in the finished product, and low purity, and achieve the effect of high purity of the finished product, less impurities, and simple and easy operation method

Active Publication Date: 2018-11-16
SHANDONG VICOME GREENLAND CHEMICAL CO LTD
View PDF1 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional purification method is complicated, and the purified finished product has more impurities and low purity, only about 60%

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
  • Purification method for Xinjunan

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The embodiment of the present invention provides a method for purifying caprolactin, which includes the following steps:

[0023] (1) Add the caprolactone mother liquor to the glacial acetic acid solution, and stir the resulting mixed solution for use;

[0024] (2) Refrigerate the mixed solution to form an ice-water mixture, take out the ice-water mixture and filter with suction, remove the filtrate and leave the frozen material;

[0025] (3) Melt the frozen material and extract with chloroform or a mixture of acetone and chloroform;

[0026] (4) After extraction, take the upper liquid and add xylene for extraction;

[0027] (5) Discard the xylene extract, add the aqueous ammonia solution to the lower layer solution and mix well, and then filter with suction to obtain the caprolactin solid.

[0028] among them,

[0029] In the step (1), the volume ratio of the caprolactone mother liquor and the glacial acetic acid solution is 1:8, and the concentration of the glacial acetic acid so...

Embodiment 2

[0035] The embodiment of the present invention provides a method for purifying caprolactin, which includes the following steps:

[0036] (1) Add the caprolactone mother liquor to the glacial acetic acid solution, and stir the resulting mixed solution for use;

[0037] (2) Refrigerate the mixed solution to form an ice-water mixture, take out the ice-water mixture and filter with suction, remove the filtrate and leave the frozen material;

[0038] (3) Melt the frozen material and extract with chloroform or a mixture of acetone and chloroform;

[0039] (4) After extraction, take the upper liquid and add xylene for extraction;

[0040] (5) Discard the xylene extract, add the aqueous ammonia solution to the lower layer solution and mix well, and then filter with suction to obtain the caprolactin solid.

[0041] among them,

[0042] In the step (1), the volume ratio of the caprolactone mother liquor and the glacial acetic acid solution is 1:5, and the concentration of the glacial acetic acid so...

Embodiment 3

[0048] The embodiment of the present invention provides a method for purifying caprolactin, which includes the following steps:

[0049] (1) Add the caprolactone mother liquor to the glacial acetic acid solution, and stir the resulting mixed solution for use;

[0050] (2) Refrigerate the mixed solution to form an ice-water mixture, take out the ice-water mixture and filter with suction, remove the filtrate and leave the frozen material;

[0051] (3) Melt the frozen material and extract with chloroform or a mixture of acetone and chloroform;

[0052] (4) After extraction, take the upper liquid and add xylene for extraction;

[0053] (5) Discard the xylene extract, add the aqueous ammonia solution to the lower layer solution and mix well, and then filter with suction to obtain the caprolactin solid.

[0054] among them,

[0055] In the step (1), the volume ratio of the caprolactone mother liquor and the glacial acetic acid solution is 1:10, and the concentration of the glacial acetic acid s...

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

PropertyMeasurementUnit
melting pointaaaaaaaaaa
boiling pointaaaaaaaaaa
Login to View More

Abstract

The invention discloses a purification method for Xinjunan, and belongs to the field of pesticides. The technical scheme comprises the following steps: firstly, adding a Xinjunan mother liquid into aglacial acetic acid solution, uniformly carrying out stirring to obtain a mixed solution for standby use, then refrigerating the mixed solution for forming an ice-water mixture, taking out the ice-water mixture, carrying out suction filtration, removing the filtrate and keeping the frozen material, then thawing the frozen material, carrying out extraction by using chloroform or a mixture of acetone and chloroform, then taking the supernatant liquid after the extraction, adding xylene, carrying out extraction, discarding the xylene extract liquor, adding an ammonia water solution into the lower-layer solution, uniformly carrying out mixing, and carrying out suction filtration to obtain a Xinjunan solid. The advantages of the method provided by the invention are as the follows that conventional reagents are used in the purification method, the operation method is simple and easy to implement, and the obtained finished product is high in purity and few in impurities.

Description

Technical field [0001] The present invention relates to the field of pesticides, in particular to a method for purifying caprolactin. Background technique [0002] Caprolactone is an alkyl polyamine bactericide, containing synergistic ingredients organic silicon and imidazole bactericidal factors. It is a new generation of high-tech, environmentally friendly, high-efficiency, broad-spectrum, low-toxic bactericide. The effective ingredient of octylstrobin is di-n-octyl diethylene triamine, including N,N-di-n-octyl diethylene triamine, N,N`-di-n-octyl diethylene triamine, N,N"-di N-octyl diethylene triamine. Its main physical and chemical properties: experimental formula: C 2 0H 45 N 3 • 1.5H 2 O, relative molecular mass (in 2009 international relative atomic mass): 354.61, melting point: 62.3°C, boiling point: 413°C, easily soluble in pyridine. [0003] Capoxystrobin needs to be purified during production. The traditional purification method is: the traditional purification process...

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): C07C211/14C07C209/84A01N33/04A01P1/00A01P3/00
CPCA01N33/04C07C209/84C07C211/14
Inventor 周玉良王永星徐梁赵吉虎来庆利朱立军彭丽董金居
Owner SHANDONG VICOME GREENLAND CHEMICAL CO LTD