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Preparation method for cobalt boroacylate with low melting point

A technology of cobalt boroacylate and low melting point, which is applied in the field of preparation of cobalt boroacylate with low melting point to achieve the effect of good dispersion and low melting point

Active Publication Date: 2013-05-22
大连爱柏斯化工股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Cobalt acetate and 2-ethylhexanoate among the substances of high concern specified in the REACH regulations restrict the preparation method of cobalt boroacylate

Method used

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  • Preparation method for cobalt boroacylate with low melting point

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Embodiment 1

[0043] This embodiment provides a method for preparing cobalt boroacylate, which can be used as an accelerator for rubber composite materials with excellent performance. The method includes:

[0044] Mix neodecanoic acid, propionic acid, valeric acid, stearic acid 1845, rosin, xylene and cobalt hydroxide to carry out acid-base neutralization reaction, and obtain an intermediate product after the neutralization reaction is completed;

[0045] Add tributyl borate to the obtained intermediate product to carry out boroacylation reaction, and at the same time add calcium borate as an additive, and the reaction product obtained after the boroacylation reaction is completed is cobalt boroacylate.

[0046] Above-mentioned method specifically comprises two steps of neutralization reaction and boroacylation reaction:

[0047] Neutralization reaction: Stir and mix neodecanoic acid, valeric acid, stearic acid 1845, rosin, and xylene, then add cobalt hydroxide while stirring and vacuuming;...

Embodiment 2

[0064] This embodiment provides a method for preparing cobalt boroacylate, and the prepared cobalt boroacylate can be used as an accelerator for rubber composite materials. The method includes:

[0065] Neutralization reaction: 40 to 45 parts by weight of neodecanoic acid, 1 to 4 parts by weight of valeric acid, 6 to 8 parts by weight of stearic acid 1845, 1 to 4 parts by weight of rosin and 40 to 50 parts by weight of xylene Add it into the reaction kettle, start high-speed stirring, and its rotating speed is 150-250 rpm, and at the same time slowly add 35-38 parts by weight of cobalt hydroxide, after adding cobalt hydroxide, slowly raise the temperature and dropwise add 28 parts by weight of acrylic acid acid; when the temperature rises to 93°C, xylene and water are distilled out; when the temperature rises to 160°C, vacuum distillation is carried out, and the vacuum is reduced from -0.01MPa to -0.08MPa during the decompression process, and the vacuum is -0.08MPa After keepi...

Embodiment 3

[0069] This embodiment provides a method for preparing cobalt boroacylate, and the prepared cobalt boroacylate can be used as an accelerator for rubber composite materials. The method includes:

[0070] Neutralization reaction: adding 40-45 parts by weight of neodecanoic acid, 0 parts by weight of valeric acid, 6-8 parts by weight of stearic acid 1845, 1-4 parts by weight of rosin and 40-50 parts by weight of xylene In the reaction kettle, start high-speed stirring at a speed of 150 to 250 rpm, and at the same time slowly add 35 to 38 parts by weight of cobalt hydroxide. After adding cobalt hydroxide, slowly heat up and dropwise add 30 to 35 parts by weight of acid; when the temperature rises to 93°C, xylene and water are distilled out; when the temperature rises to 160°C, vacuum distillation is carried out, and the vacuum is reduced from -0.01MPa to -0.08MPa during the decompression process, and the vacuum is -0.08MPa After keeping for 120 minutes, the acid-base neutralizatio...

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Abstract

The invention discloses a preparation method for cobalt boroacylate with a low melting point. The preparation method comprises the following steps of: carrying out a neutralization reaction, namely, mixing neodecanoic acid, propionic acid, valeric acid, stearic acid, rosin, dimethylbenzene and cobalt hydroxide to carry out acid-base neutralization reaction so as to obtain an intermediate product after the neutralization reaction is completed; carrying out boro-acylation reaction, namely, adding tributyl borate to the obtained intermediate product to carry out boro-acylation reaction, adding the calcium borate as an additive, wherein the reaction product obtained by the boro-acylation reaction is cobalt boroacylate. The cobalt boroacylate prepared by the preparation method disclosed by the invention is low in melting point and good in dispersion; and moreover, high-concern substances mentioned by the REACH (REGULATION concerning the Registration, Evaluation,Authorization and Restriction of Chemicals) are avoided, and a green passport is provided for the exportation of products.

Description

technical field [0001] The invention relates to the technical field of preparation of chemical products, in particular to a preparation method of cobalt boroacylate with a low melting point that can be used as a rubber adhesion promoter. Background technique [0002] Organic cobalt salts have been widely used as rubber-metal adhesion promoters in radial tires, and cobalt boroacylate has the best effect and the largest dosage. The bonding between rubber and copper-plated steel wire is the chemical bond formed by cuprous sulfide and rubber sulfide, and the cobalt ions in cobalt boroacylate can promote the formation of active cuprous sulfide. Under thermal excitation, the boronic acid groups decomposed from cobalt boroacylate molecules are amphoteric and can absorb acids, alkaline media and water, acting as buffers and inhibitors. [0003] Due to the different production technologies of cobalt salts, the properties of the obtained products are also different. Firestone techni...

Claims

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Application Information

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IPC IPC(8): C07F15/06C07F5/02
Inventor 马侠张艳铃孙延亮孙立群
Owner 大连爱柏斯化工股份有限公司
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