CN104413005A - Preparation method of furidazol - Google Patents

Preparation method of furidazol Download PDF

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Publication number
CN104413005A
CN104413005A CN201310394902.3A CN201310394902A CN104413005A CN 104413005 A CN104413005 A CN 104413005A CN 201310394902 A CN201310394902 A CN 201310394902A CN 104413005 A CN104413005 A CN 104413005A
Authority
CN
China
Prior art keywords
furidazol
organic solvent
dehydration
dehydrating
preparation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201310394902.3A
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Chinese (zh)
Inventor
贾玉林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
QINGDAO HAOLITE BIOLOGICAL PESTICIDE Co Ltd
Original Assignee
QINGDAO HAOLITE BIOLOGICAL PESTICIDE Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by QINGDAO HAOLITE BIOLOGICAL PESTICIDE Co Ltd filed Critical QINGDAO HAOLITE BIOLOGICAL PESTICIDE Co Ltd
Priority to CN201310394902.3A priority Critical patent/CN104413005A/en
Publication of CN104413005A publication Critical patent/CN104413005A/en
Pending legal-status Critical Current

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Abstract

The invention relates to a preparation method of furidazol. The preparation method comprises the following steps of firstly, mixing an organic solvent and a wet product of furidazol, distilling and dehydrating to prepare furidazol; secondly, distilling and dehydrating through spray heating or membrane evaporator heating by taking the solvent as a carrier to realize the continuous operation of a dehydration process as well as wet-process smashing, blending and packaging processes; and thirdly, simultaneously finishing the operation of complexing maneb and zinc in the organic solvent and the process of dehydrating for crystal transformation. Due to the implementation of the third step, the decomposition of a product is reduced, the harmful impurity and dust pollution is reduced, and a fire accident generated in a product drying process is avoided.

Description

A kind of outfit method of furidazol
Technical field
The invention belongs to chemical technology field, be specifically related to a kind of outfit method of furidazol.
Background technology
Furidazol sterling is white powder, industrial goods are canescence or pale yellow powder, there is rotten-egg odour, be insoluble in water, be insoluble to most of organic solvent, but can be dissolved in pyridine, to light, heat, moist instability, easily decomposite carbon disulphide, chance alkaline matter or the material such as copper, mercury all easily decompose releases carbon disulphide and subtracts effect, and volatility is little.So-called protection, exactly for plant provides Zn element, except solving the symptom of scarce zinc, strengthens the ability of opposing disease, thus relatively plays bactericidal action to plant.
Summary of the invention
The present invention proposes a kind of outfit method of furidazol, and bactericidal range of the present invention extensively, not easily produces resistance, and control efficiency is obviously better than other same series bactericidal agents.Technical scheme is: with the method for furidazol, and step is:
The first step, furidazol preparation adopts the wet Product mix distillation dehydration of organic solvent and furidazol.
Second step take solvent as carrier through spraying heating or through kestner long-tube evaporator heating distillation dehydration, can make dehydration procedure and wet pulverizing, modulation, packaging process continued operation.
3rd step, maneb and zinc in organic solvent complexing complete with a dehydration turn brilliant operation simultaneously
3rd step decreases the decomposition of product, reduces the pollution of objectionable impurities and dust, avoids the generation of firing accident in product drying process.Solvent method dewatering speed of the present invention is fast, and production safety efficiency is high, and simplifies production technology.
Embodiment:
The outfit method of furidazol, step is:
The first step, furidazol preparation adopts the wet Product mix distillation dehydration of organic solvent and furidazol.
Second step take solvent as carrier through spraying heating or through kestner long-tube evaporator heating distillation dehydration, can make dehydration procedure and wet pulverizing, modulation, packaging process continued operation.
3rd step, maneb and zinc in organic solvent complexing complete with a dehydration turn brilliant operation simultaneously
3rd step decreases the decomposition of product, reduces the pollution of objectionable impurities and dust, avoids the generation of firing accident in product drying process.Solvent method dewatering speed of the present invention is fast, and production safety efficiency is high, and simplifies production technology.

Claims (1)

1. the outfit method of furidazol, its characterization step is:
The first step, furidazol preparation adopts the wet Product mix distillation dehydration of organic solvent and furidazol;
Second step take solvent as carrier through spraying heating or through kestner long-tube evaporator heating distillation dehydration, can make dehydration procedure and wet pulverizing, modulation, packaging process continued operation;
3rd step, maneb and zinc in organic solvent complexing complete with a dehydration turn brilliant operation simultaneously.
CN201310394902.3A 2013-09-04 2013-09-04 Preparation method of furidazol Pending CN104413005A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310394902.3A CN104413005A (en) 2013-09-04 2013-09-04 Preparation method of furidazol

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310394902.3A CN104413005A (en) 2013-09-04 2013-09-04 Preparation method of furidazol

Publications (1)

Publication Number Publication Date
CN104413005A true CN104413005A (en) 2015-03-18

Family

ID=52963937

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310394902.3A Pending CN104413005A (en) 2013-09-04 2013-09-04 Preparation method of furidazol

Country Status (1)

Country Link
CN (1) CN104413005A (en)

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WD01 Invention patent application deemed withdrawn after publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20150318