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Synthesis method for copper octoate

A synthesis method, copper octoate technology, applied in the separation/purification of carboxylic acid compounds, carboxylate preparation, organic chemistry, etc., can solve the problems of packaging, complicated preparation methods, and reducing the purity of copper octoate

Inactive Publication Date: 2019-05-31
成都蓉橙九天生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the preparation method of copper octoate is relatively complicated, and impurities such as sodium ions, sulfate ions, and copper ions will be introduced, which will easily cause encapsulation and reduce the purity of copper octoate

Method used

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Examples

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Effect test

preparation example Construction

[0031] The embodiment of the present application provides a kind of synthetic method of copper octanoate, it comprises the following steps:

[0032] Step S1: mixing n-octanoic acid, copper oxide and a solvent, dissolving n-octanoic acid in the solvent, and reacting at a temperature higher than the boiling point of the solvent to obtain a reactant.

[0033] The reaction equation of above-mentioned reaction is as follows:

[0034] 2C 7 h 15 COOH+CuO=(C 7 h 15 COO) 2 Cu+H 2 O.

[0035] It should be noted that octanoic acid in this example is straight-chain n-octanoic acid, and copper n-octanoate refers to straight-chain n-octanoic acid copper; usually, if iso-octanoic acid is used as a raw material, n-octoate copper cannot be obtained.

[0036] In order to ensure that the reaction is carried out completely, while avoiding the introduction of difficult-to-remove impurities, the molar ratio of n-octanoic acid to copper oxide is 0.1-2:1, and the molar ratio of n-octanoic acid...

Embodiment 1

[0053] The present embodiment provides a kind of copper octanoate product, and its synthesis route is as follows:

[0054] Take by weighing 24.8g copper oxide powder, place in the round bottom flask of 1L, add 22.5g n-octanoic acid, (the molar ratio of n-octanoic acid and copper oxide is 0.5:1) add 500mL dehydrated alcohol again, stir, let n-octanoic acid fully Dissolve in absolute ethanol.

[0055] Place the round-bottomed flask in a water bath, install a condenser tube and feed condensed water, control the temperature of the water bath at 90°C, and fully reflux the reaction for 36 hours. After the mixture of n-octanoic acid and absolute ethanol gradually turns dark green, the reaction product is obtained. .

[0056] The reactant was centrifuged to obtain the liquid fraction.

[0057] The liquid components were slowly evaporated to dryness, the evaporation temperature was 80° C., and the evaporation time was 3 hours to obtain solid components.

[0058] Vacuum-dry the obtai...

Embodiment 2

[0061] This embodiment provides a kind of copper octoate product, and its synthesis route is basically the same as the synthesis route of embodiment 1, and difference is:

[0062] Take by weighing 12.4g copper oxide powder, place in the round bottom flask of 1L, add 22.5g n-octanoic acid, (the mol ratio of n-octanoic acid and copper oxide is 1:1) add 500mL dehydrated alcohol again, stir, let n-octanoic acid fully Dissolved in absolute ethanol to finally obtain copper octoate product.

[0063] After testing, the copper octoate purity of the copper octoate product is 99.3%, and the yield is 90.3%.

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Abstract

The embodiment of the invention provides a synthesis method for copper octoate, and relates to the field of organic synthesis. The synthesis method for copper octoate comprises the following steps that n-caprylic acid and copper oxide are mixed with a solvent with the mole ratio being 0.1-2:1, n-caprylic acid is dissolved into a solvent, a reaction is performed under the condition that the temperature is higher than the boiling point of the solvent, and a reactant is obtained; the reactant is subjected to solid-liquid separation. The copper octoate product is obtained by adopting the synthesismethod for copper octoate, and the purity of copper octoate in the copper octoate product reaches 99% or above. The synthesis method for copper octoate is simple, and the copper octoate product is high in purity.

Description

technical field [0001] The application relates to the field of organic synthesis, in particular to a method for synthesizing copper octanoate. Background technique [0002] Copper octanoate usually refers to copper n-octoate, its molecular formula is (C 7 h 15 COO) 2 Cu has a relative molecular mass of 349.96 and a CAS number of 20543-04-8. Copper octoate is widely used, and has been used in coatings, preservatives, cable waterproofing agents, bactericides, bactericides, algaecides and other fields. [0003] The preparation method of copper octoate in the prior art is relatively complicated, and impurities such as sodium ions, sulfate ions, and copper ions will be introduced, which may easily cause encapsulation and reduce the purity of copper octoate. Contents of the invention [0004] The purpose of the examples of the present application is to provide a method for synthesizing copper octoate, which is simple and has high product purity. [0005] In the first aspect...

Claims

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Application Information

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IPC IPC(8): C07C51/41C07C53/126C07C51/42
Inventor 陈明斌方永祥杨述省
Owner 成都蓉橙九天生物科技有限公司
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