Process for producing environment-friendly aromatic rubber oil

A high-aromatic and rubber oil technology, which is only applied in the direction of multi-stage serial refining process, can solve the problems of increased carcinogenicity and reduced viscosity of extender oils

Inactive Publication Date: 2010-12-29
王喜安 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Rubber filler oil has been widely used in the rubber industry. As an important rubber additive, it can not only change the plasticity of rubber, reduce the viscosity of rubber, save labor consumption, but also improve the dispersion and mixing of other mixing agents, calendering and extrusion. The lubricating effect in the extrusion process can also reduce the cost and improve the actual performance of the rubber. In order to better improve the compatibility of rubber and oil, the aromatic components in the extended oil used are particularly important, but PCA in the aromatic components It will lead to an increase in the carcinogenicity of filler oils. At present, PCA has become an organic pollutant of common concern to the world's environmental protection and standardization organizations. Toxic substances. Therefore, it is necessary to remove the carcinogenic factors in the aromatic components, and at the same time maintain the good compatibility between the extender oil and the rubber. However, the extraction oil with high aromatic content in the past contains a large amount of polycyclic aromatic hydrocarbons, so it is necessary to develop a Extender oil with reduced PCA content (specifically, the mass fraction is less than 3%). It is also an environmentally friendly high aromatic rubber oil (TDAE).

Method used

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  • Process for producing environment-friendly aromatic rubber oil

Examples

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Effect test

Embodiment 1

[0014] The preparation of embodiment 1 environmental protection high aromatic hydrocarbon rubber oil

[0015] The preparation of environment-friendly aromatic hydrocarbon oil comprises the following steps:

[0016] 1) Take the extracted oil (China Petroleum Liaohe Lubricating Oil Factory) as the raw material and dilute it with cyclohexane. The dilution process needs to be fully stirred until the raw material is completely dissolved, and there is no specific requirement for the dissolution temperature. The selected solvent cyclohexane The mass ratio of the extracted oil to minus three is 0.2:1.

[0017] 2) Primary extraction. Add dimethyl sulfoxide to the above diluent oil for primary extraction. The extraction temperature is 100--110°C. The stirring time is 1 hour. The mass ratio of diluent oil to solvent dimethyl sulfoxide The ratio is 1:2. After standing for 4 hours, it is separated. The lower dimethyl sulfoxide layer after separation is the extract, and the upper layer is ...

Embodiment 2

[0021] The preparation of embodiment 2 environmental protection high aromatic rubber oil

[0022] The preparation of environment-friendly aromatic hydrocarbon oil comprises the following steps:

[0023] 1) Take the extracted oil (China Petroleum Liaohe Lubricating Oil Factory) as the raw material, and dilute with petroleum ether as the solvent. The dilution process needs to be fully stirred until the raw material is completely dissolved, and there is no specific requirement for the dissolution temperature. The selected solvent petroleum ether and the reduced The mass ratio of the three extracted oils is 0.3:1.

[0024] 2) Primary extraction. Add dimethyl sulfoxide to the above diluent oil for primary extraction. The extraction temperature is 100-110°C. The stirring time is 1 hour. The mass ratio of diluent oil to solvent dimethyl sulfoxide is 1:2. Separation after standing for 4 hours. After separation, the lower layer of dimethyl sulfoxide is the extract, and the upper layer...

Embodiment 3

[0028] The preparation of embodiment 3 environmental protection high aromatic hydrocarbon rubber oil

[0029] The preparation of environment-friendly aromatic hydrocarbon oil comprises the following steps:

[0030] 1) Take the extracted oil (PetroChina Liaohe Lubricating Oil Factory) as the raw material, and dilute it with HVI150 (Yanshan Petrochemical) as the solvent. The dilution process needs to be fully stirred until the raw material is completely dissolved, and there is no specific requirement for the dissolution temperature. The selected solvent ring The mass ratio of hexane to the extracted oil is 0.1:1.

[0031] 2) Primary extraction. Add dimethyl sulfoxide to the above diluent oil for primary extraction. The extraction temperature is 100-110°C. The stirring time is 1 hour. The mass ratio of diluent oil to solvent dimethyl sulfoxide is 1:2. Separation after standing for 4 hours. After separation, the lower layer of dimethyl sulfoxide is the extract, and the upper laye...

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Abstract

The invention relates to environment-friendly aromatic rubber oil used in the rubber industry. In the rubber oil, cyclohexane / petroleum ether / HVI150 and dimethyl sulfoxide are used as solvents, and PCA in the oil is extracted by using the selectivity of the dimethyl sulfoxide under a specific condition. The process aims to provide the rubber filling oil which is capable of exerting properties the same as the conventional aromatic oil, does not have the problem of carcinogenicity and has better safety, and a producing method thereof.

Description

technical field [0001] This invention relates to black rubber oils used in the rubber industry. Background technique [0002] Rubber filler oil has been widely used in the rubber industry. As an important rubber additive, it can not only change the plasticity of rubber, reduce the viscosity of rubber, save labor consumption, but also improve the dispersion and mixing of other mixing agents, calendering and extrusion. The lubricating effect in the extrusion process can also reduce the cost and improve the actual performance of the rubber. In order to better improve the compatibility of rubber and oil, the aromatic components in the extended oil used are particularly important, but PCA in the aromatic components It will lead to an increase in the carcinogenicity of filler oils. At present, PCA has become an organic pollutant of common concern to the world's environmental protection and standardization organizations. Toxic substances. Therefore, it is necessary to remove the c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G53/04C08K5/01C08L21/00
Inventor 王喜安朱建江
Owner 王喜安
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