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Preparation method and application of composite zinc isooctanoate

A technology of zinc isooctanoate and sulfuric acid, which is applied in the direction of carboxylate preparation, carboxylate preparation, organic compound preparation, etc., to achieve the effect of good use effect and low price

Pending Publication Date: 2020-09-08
BELIKE CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention provides a preparation method of complex zinc isooctanoate to solve the problem of increasing the percentage content of zinc ions

Method used

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  • Preparation method and application of composite zinc isooctanoate

Examples

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preparation example Construction

[0025] In an embodiment, the preparation method of the complex zinc isooctanoate comprises the following steps:

[0026] (1) Get mass concentration and be that the sulfuric acid 200-300ml of 32-40% is put in the reactor, add zinc oxide 17.4-19.3g, succinic anhydride 28.4-34.2g, be 300-500r / min to stir with rotating speed, in Heat to a temperature of 70-78°C with a microwave power of 200-300W, then keep the temperature at 70-78°C, increase the microwave power of 400-600W and react for 1-1.5h to prepare a mixed solution A;

[0027] (2) Add 36.2-38g of isooctanoic acid to the mixed solution A prepared in step (1), heat it to a temperature of 128-135°C at a microwave power of 300-400W, then keep the temperature at 128-135°C, and microwave power React at 300-400W for 2-3h to prepare mixed solution B;

[0028] (3) The mixed solution B that step (2) is made is transferred to carry out decompression reaction and reclaim succinic acid in the decompression reactor, then reclaim sulfuri...

Embodiment 1

[0030] A preparation method of compound zinc isooctanoate, comprising the following steps:

[0031] (1) Take 300ml of sulfuric acid with a mass concentration of 33.4% and put it in a reaction kettle, add 17.8g of zinc oxide and 29.3g of succinic anhydride, stir at a speed of 300r / min, and heat to a temperature of 72 ℃, then keep the temperature at 72 ℃, increase the microwave power to 400W and react for 1.5h to prepare the mixed solution A;

[0032] (2) in the mixed solution A that step (1) makes, add the 36.4g isooctanoic acid that mass concentration is 99.5%, be that 130 ℃ are heated to temperature under microwave power under 300W, then keep temperature and be 130 ℃, microwave power is Reaction at 300W for 3h to prepare mixed solution B;

[0033] (3) the mixed solution B that step (2) is made is transferred to carry out decompression reaction and reclaim succinic acid in the decompression reactor, then reclaim sulfuric acid, make compound zinc isooctanoate, viscosity 14000m...

Embodiment 2

[0035] A preparation method of compound zinc isooctanoate, comprising the following steps:

[0036] (1) Put 260ml of sulfuric acid with a mass concentration of 36.8% in a reaction kettle, add 18.6g of zinc oxide and 31.7g of succinic anhydride, stir at a speed of 400r / min, and heat to a temperature of 75 °C, then keep the temperature at 75 °C, increase the microwave power to 500W and react for 1.3h to prepare the mixed solution A;

[0037] (2) Adding 37g of isooctanoic acid with a mass concentration of 99.5% to the mixed solution A prepared in step (1), heating to a temperature of 132° C. at a microwave power of 400 W, then keeping the temperature at 132° C., and a microwave power of 400 W Down reaction 2.2h, make mixed solution B;

[0038] (3) the mixed solution B that step (2) is made is transferred to carry out decompression reaction and reclaim succinic acid in the decompression reactor, then reclaim sulfuric acid, make compound zinc isooctanoate, viscosity 11600mPa s, co...

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Abstract

The invention discloses a preparation method and application of composite zinc isooctanoate. The preparation method of the composite zinc isooctanoate comprises the following steps: (1) putting sulfuric acid into a reaction kettle, adding zinc oxide and butanedioic anhydride, stirring, heating under microwaves, then keeping the temperature, and reacting under the condition of increasing the microwave power to obtain a mixed solution A; (2) adding isocaprylic acid into the mixed solution A prepared in the step (1), heating under microwaves, and then keeping the temperature and the microwave power to react so as to prepare a mixed solution B; and (3) transferring the mixed solution B prepared in the step (2) into a reduced-pressure reaction kettle, carrying out a reduced-pressure reaction torecover succinic acid, and then recovering sulfuric acid to prepare the composite zinc isooctanoate. According to the invention, the raw materials are easy to obtain, the price is low, the solvent can be recycled, and the prepared composite zinc isooctoate can be used as a novel non-toxic, green and environment-friendly heat stabilizer, has fluidity and a good using effect, and can replace a heavy metal heat stabilizer which is used at present and is high in toxicity.

Description

technical field [0001] The invention belongs to the technical field of zinc isooctanoate preparation, and in particular relates to a preparation method and application of compound zinc isooctanoate. Background technique [0002] Zinc isooctanoate is widely used, and it has better characteristics when used in light-colored paints. It can reduce the color of the paint film and improve the gloss. It is an upgraded product of naphthenate; it can also be used as a catalyst for polyurethane coatings and elastomers. Promote the crosslinking of aliphatic isocyanate and shorten the curing time; it can also be used in the production of PVC (polyvinyl chloride) synthetic resin liquid heat stabilizer, etc. [0003] The main synthesis techniques of isooctanoic acid currently reported are mainly divided into the following types: (1) direct neutralization method; that is, using metal oxide salt or hydroxide salt to react with isooctanoic acid at a certain temperature, and removing the reac...

Claims

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Application Information

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IPC IPC(8): C07C51/41C07C53/126C07C55/10C08K5/098C09D7/48
CPCC07C51/412C08K5/098C09D7/48C07C53/126C07C55/10
Inventor 郭向荣王海
Owner BELIKE CHEM
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