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Soluble polymerized sulphur production process and equipment

A technology of polymerizing sulfur and production technology, which is applied in the chemical industry, can solve the problems of not being able to meet the technical requirements of manufacturing high-quality tires, non-blooming, poor thermal stability, affecting the pass rate and safety of tires, etc., and achieve excellent non-blooming properties, excellent high temperature stability, and high conversion rate of sulfur

Inactive Publication Date: 2015-07-22
CHANGCHUN DIPPER SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The domestic market capacity of polymerized sulfur is 100,000 tons, the output is less than 30,000 tons, and it is a low-quality product. More importantly, it does not bloom and has poor thermal stability, which seriously affects the pass rate and safety of tires, and cannot be used to manufacture high-quality products. Technological requirements for tires
The conversion rate of polymerized sulfur produced by domestic melting method is mostly around 40%, while the conversion rate of foreign advanced technology polymerized sulfur only reaches 70%

Method used

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  • Soluble polymerized sulphur production process and equipment

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0026] Example 1. The present invention adopts the following steps to complete:

[0027] Prepare the premix

[0028] one. Set the stirring frequency of mixing reactor A to 20Hz, turn on the stirring switch and stir for 8min; put 30 kg of sulfur powder into mixing reactor A, increase the speed to 30Hz, stir for 12min, and mix 2.5 kg of anilinomethyl triethoxy Put γ-(methacryloyloxy)propyltrimethoxysilane and 3.3 kg of γ-(methacryloyloxy)propyltrimethoxysilane into reaction kettle A and stir for 1.5h. The material is released and bagged for use;

[0029] two. Preparation of finished materials

[0030] 1. Set the stirring frequency of mixing reactor B to 20Hz, and the heating water temperature to 98°C, turn on the stirring switch and heating switch of reactor B, and turn it for 10 minutes;

[0031] 2. Put 70 kg of sulfur powder into reaction kettle B, stir for 5 minutes, then put in 37 kg of premix and 2.7 kg of 2-(2,4-dinitrophenylthio)benzothiazole, 2.5 kg of 2-thiolthiaz...

example 2

[0036] Example 2. The present invention adopts the following steps to complete:

[0037] Prepare the premix

[0038] one. Set the stirring frequency of mixing reactor A to 20Hz, turn on the stirring switch and stir for 12min; put 30 kg of sulfur powder into mixing reactor A, increase the speed to 30Hz, stir for 8min, and mix 2.2 kg of anilinomethyltriethoxy Put γ-(methacryloyloxy)propyltrimethoxysilane and 3.7 kg of γ-(methacryloyloxy)propyltrimethoxysilane into reaction kettle A and stir for 1.5h. The material is released and bagged for use;

[0039] two. Preparation of finished materials

[0040] 1. Set the stirring frequency of mixing reactor B to 20Hz, set the heating water temperature to 92°C, turn on the stirring switch and heating switch of reactor B, and turn it for 10 minutes;

[0041] 2. Put 70 kg of sulfur powder into reaction kettle B, stir for 5 minutes, then put in 35 kg of premix and 3 kg of 2-(2,4-dinitrophenylthio)benzothiazole, 2.2 kg of 2-thiolthiazoli...

example 3

[0046] Example 3. The present invention adopts the following steps to complete:

[0047] Prepare the premix

[0048] one. Set the stirring frequency of the mixing reactor A to 20Hz, turn on the stirring switch and stir for 10min; put 30 kg of sulfur powder into the mixing reactor A, increase the speed to 30Hz, stir for 10min, and mix 2.38 kg of anilinomethyltriethoxy Put γ-(methacryloyloxy)propyltrimethoxysilane and 3.62 kg of γ-(methacryloyloxy)propyltrimethoxysilane into reaction kettle A and stir for 1.5h. The material is released and bagged for use;

[0049] two. Preparation of finished materials

[0050] 1. Set the stirring frequency of mixing reactor B to 20Hz, and the heating water temperature to 95°C, turn on the stirring switch and heating switch of reactor B, and turn it for 10 minutes;

[0051] 2. Put 70 kg of sulfur powder into reaction kettle B, stir for 5 minutes, then put in 36 kg of premix and 28.5 kg of 2-(2,4-dinitrophenylthio)benzothiazole, 2.38 kg of ...

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Abstract

Belonging to the technical field of chemical industry, the invention relates to a soluble polymerized sulphur production process and equipment. The production process includes: putting sulphur powder into a mixed reaction kettle A, conducting stirring and increasing the rotation speed, putting aniline methyltriethoxysilane and gamma-(methylacryloyloxy)propyltrimethoxysilane into the reaction kettle A, and when the materials in the kettle are stirred evenly, discharging the premix for stand-by use; putting sulphur powder into a reaction kettle B, then adding the premix and 2-(2, 4-dinitrophenylthio)benzothiazole, 2-mercaptothiazoline, and 1, 1, 3-tri(2-methyl 4-hydroxy-5-tert-butylphenyl)butane, increasing the rotation speed and performing stirring for 4h; and cooling the materials in the reaction kettle. The production equipment mainly consists of a kettle body, a motor, double helix stirring blades, a spatula and scraping chains, materials are stirred by the double helix stirring blades, spatula and scraping chains. The product provided by the invention adopts a low temperature and atmospheric pressure production technology, the technology has the characteristics of safety, low energy consumption and high sulphur conversion rate, and the formula completely rejects flammable and explosive toxic solvents.

Description

technical field [0001] The invention belongs to the technical field of chemical industry and relates to a sulfur production process and equipment. Background technique [0002] With the rapid development of the automobile industry, more and more attention has been paid to the safety of tires, and the most important safety problems are delamination and tire blowout. Tires are layered structure products, and the strong and uniform bonding between the layers can ensure that the tire does not delaminate or blow out. For this reason, it is necessary to add a vulcanizing agent for cross-linking reaction. Effective bonding can only be achieved by using high-quality, high-quality vulcanizing agents and at the same time performing an appropriate vulcanization reaction. The vulcanizing agent commonly used at present is insoluble polymeric sulfur. There are three major technical bottlenecks in the production of insoluble polymeric sulfur in the world: the use of a large amount of t...

Claims

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Application Information

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IPC IPC(8): C01B17/02
Inventor 赵敏姜元清张峰孙鸿丽
Owner CHANGCHUN DIPPER SCI & TECH
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