Preparation method of rubber vulcanizing agent dimorpholinyl disulfide

A technology of dimorpholine disulfide and vulcanizing agent, which is applied in the chemical industry, can solve the problems of increasing the production cost of enterprises and the difficulty of environmental governance, and achieve the effects of improving quality, reducing the amount of sulfur, and increasing adhesion

Inactive Publication Date: 2015-09-16
宜兴市聚金信科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0003] At present, domestic production of dimorpholine disulfide generally uses benzene, toluene, or gasoline as a solvent, which is easy to react with disulfur dichloride to produce toxic gas, which

Method used

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Embodiment Construction

[0007] A production method of rubber vulcanizing agent dimorpholine disulfide, comprising the steps of: adding sherwood oil solvent in a reaction kettle, heating to 45-60 degrees, adding sodium hydroxide powder, stirring evenly, within 1-1.5 hours After adding the morpholine solution and disulfide dichloride solution dropwise, continue to stir for 3 hours to react, stand still to separate the petroleum ether solvent, and dry to obtain a white crystal.

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Abstract

The invention discloses a preparation method of a rubber vulcanizing agent dimorpholinyl disulfide. The method comprises the following steps: adding a petroleum ether solvent into a reaction kettle, heating to 45-60DEG C, adding a sodium hydroxide pulvis, uniformly stirring, adding a morpholine solution and a disulfur dichloride solution in a dropwise manner within 1-1.5h, continuously stirring for 3h for a reaction, standing, separating out the petroleum ether solvent, and drying to obtain a white crystal. The method improves the quality and the yield of the above product, allows the acidity of the product to be not greater than 0.05 and the ash content to be not greater than 0.15, and realizes small discharge of three wastes.

Description

technical field [0001] The invention relates to the technical field of chemical industry, in particular to a method for preparing rubber vulcanizing agent dimorpholine disulfide. Background technique [0002] Dimorpholine disulfide, as an advanced vulcanizing agent in the rubber industry, is widely used in the manufacture of tires and other rubber composite products, such as radial tires, bias rubber tires, engineering tires, butyl inner tubes and high-quality rubber products. , can also be used in rubber products such as cables, rubber rollers, oil seals, rubber shoes, etc., and can also be used as a highway asphalt stabilizer. [0003] At present, domestic production of dimorpholine disulfide generally uses benzene, toluene, or gasoline as a solvent, which is easy to react with disulfur dichloride to produce toxic gas, which poses a big threat to the health of the workers and also has a negative impact on the governance of the environment. A lot of difficulties came, whic...

Claims

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Application Information

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IPC IPC(8): C07D295/26
CPCC07D295/26
Inventor 储云仙
Owner 宜兴市聚金信科技有限公司
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