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High-performance organic cobalt mixed salt and preparation method thereof

A technology of organic cobalt and mixed salts, which is applied in the field of high-performance organic cobalt mixed salts and its preparation, which can solve the problems of high total acidity of free fatty acids, corrosiveness of metal surfaces, and unfavorable adhesion of rubber and steel wires, so as to improve anti-corrosion properties, balance pH, increase cobalt content and reactivity

Inactive Publication Date: 2014-07-02
JIANGYIN SANLIANG CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the increasingly fierce market competition, the amount of cobalt salt adhesion promoter will increase geometrically, but the price will not increase proportionally. The content of cobalt in cobalt is relatively high. When the rubber is vulcanized, they have high reactivity and play a major role in strengthening the adhesion between rubber and steel wire. However, the total acidity of free fatty acids produced by the reaction is high, which is not conducive to the long-lasting adhesion of rubber and steel wire. , and is corrosive to the metal surface, so it is extremely necessary to research and develop new raw materials or new processes for cobalt

Method used

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  • High-performance organic cobalt mixed salt and preparation method thereof
  • High-performance organic cobalt mixed salt and preparation method thereof
  • High-performance organic cobalt mixed salt and preparation method thereof

Examples

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Embodiment 1

[0022] A high-performance organic cobalt mixed salt. The organic cobalt mixed salt is blue-purple solid in appearance, its cobalt content is 15.2%, and its melting point is 103°C. The organic cobalt mixed salt is prepared by the following raw materials in proportion by weight Ingredients: 26 parts of cobalt hydroxide, 65 parts of stearic acid, 19 parts of propionic acid, 39 parts of isononanoic acid, 20 parts of butyl borate, 8 parts of calcium metaborate.

[0023] A preparation method of high-performance organic cobalt mixed salts is completed according to the following steps:

[0024] 1) Salt formation reaction: using the mixed acid of cobalt hydroxide, propionic acid, isononanoic acid and stearic acid as the raw material, in a sealed container under normal pressure, the temperature is 175°C, and the reaction time is ≥2.5 hours, the reaction produces propionic acid-hard Fatty acid cobalt mixed salt, its total reaction formula is:

[0025]

[0026] Wherein, m is 8 or 17; ...

Embodiment 2

[0032] A high-performance organic cobalt mixed salt, the appearance of the organic cobalt mixed salt is a blue-purple solid, its cobalt content is 15.4%, and its melting point is 103.5 ° C. The organic cobalt mixed salt is prepared from the following raw materials in proportion by weight Ingredients: 27 parts of cobalt hydroxide, 65 parts of stearic acid, 20 parts of propionic acid, 40 parts of isononanoic acid, 21 parts of butyl borate, 8.5 parts of calcium metaborate.

[0033] A preparation method of high-performance organic cobalt mixed salts is completed according to the following steps:

[0034] 1) Salt formation reaction: using the mixed acid of cobalt hydroxide, propionic acid, isononanoic acid and stearic acid as the raw material, in a sealed container under normal pressure, the temperature is 175°C, and the reaction time is ≥2.5 hours, the reaction produces propionic acid-hard Fatty acid cobalt mixed salt, its total reaction formula is:

[0035]

[0036] Wherein, ...

Embodiment 3

[0042] A high-performance organic cobalt mixed salt, the organic cobalt mixed salt is blue-purple solid in appearance, its cobalt content is 15.6%, and its melting point is 104°C. The organic cobalt mixed salt is prepared by the following raw materials in proportion by weight Ingredients: 28 parts of cobalt hydroxide, 66 parts of stearic acid, 21 parts of propionic acid, 41 parts of isononanoic acid, 22 parts of butyl borate, 9 parts of calcium metaborate.

[0043] A preparation method of high-performance organic cobalt mixed salts is completed according to the following steps:

[0044] 1) Salt formation reaction: using the mixed acid of cobalt hydroxide, propionic acid, isononanoic acid and stearic acid as the raw material, in a sealed container under normal pressure, the temperature is 175°C, and the reaction time is ≥2.5 hours, the reaction produces propionic acid-hard Fatty acid cobalt mixed salt, its total reaction formula is:

[0045]

[0046] Wherein, m is 8 or 17; ...

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Abstract

The invention discloses a high-performance organic cobalt mixed salt. The organic cobalt mixed salt is in a form of a bluish violet solid in light of the appearance, contains 15 to 16% of cobalt, and has the melting point of 103 to 104 DEG C. The organic cobalt mixed salt is prepared from the following raw materials in parts by weight: 26 to 28 parts of cobaltous hydroxide, 63 to 66 parts of stearic acid, 19 to 21 parts of propionic acid, 39 to 41 parts of isononanoic acid, 20 to 22 parts of boric butyl ester, and 8 to 9 parts of calcium metaborate. The high-performance organic cobalt mixed salt has the beneficial effects that propionic acid can greatly reduce the total acidity of the high-performance organic cobalt mixed salt, and thus a rubber product can be prevented from corroding and ageing; stearic acid added can effectively replace part of stearic acid that is commonly used in a tire formula, which is beneficial for the full dispersing of the main components of rubber (tire) like carbon black and zinc oxide; in addition, calcium metaborate added to cobalt salt is an amphoteric compound which can keep power of hydrogen balance in the system, and thus the corrosion resistance and cementing performance are improved, the adhering between rubber and metal is improved, and as a result, the cobalt content and reaction activity of such cobalt salt are greatly increased and improved.

Description

technical field [0001] The invention relates to a high-performance organic cobalt mixed salt and a preparation method thereof. Background technique [0002] With the rapid development of my country's highways and the rapid increase of automobile production, the demand for radial tires will increase significantly, so the demand for organic cobalt salt adhesion promoters, an essential raw material for the production of radial tires, is increasing. The quality requirements are getting higher and higher. As far as the present is concerned, the organic cobalt salt adhesion promoters produced both at home and abroad are products obtained by reacting cobalt with different organic acids. They are organic acid cobalt mixtures. The difference is different, but in the formula design of rubber products, the amount of different organic cobalt salt adhesion promoters used is calculated based on the cobalt content, that is, the amount of pure cobalt per percentage of rubber. Because the p...

Claims

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Application Information

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IPC IPC(8): C08K5/55C08K3/38C07F5/02
Inventor 徐京海苏超陶秀军
Owner JIANGYIN SANLIANG CHEM