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High quality insoluble sulfur and method for production the same

A manufacturing method and technology of sulfur, applied in the direction of sulfur preparation/purification, chemical/physical/physicochemical fixed reactors, etc., can solve problems such as pipeline blockage, difficulty in producing high-quality insoluble sulfur, and increased content of sieve residue. To achieve the effect of preventing pipe clogging

Active Publication Date: 2015-03-25
H SULFUR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] In addition, when the sulfur vapor is moved to the cooler, depending on the pressure and speed of the flow of the sulfur vapor, sulfur liquid is produced due to the azeotropic phenomenon of steam and water or the condensation phenomenon of the gas, and a large amount (20% to 30%) is included in the sulfur vapor The liquid sulfur, when the liquid sulfur is rapidly cooled, does not become a powder form, but becomes a small particle (granules) form to block the pipeline, so that the sieve residue content in the obtained insoluble sulfur (final product) increased, making it difficult to produce high-quality insoluble sulfur
However, the fact is that in the conventional production methods, these problems were not recognized at all, or the problems were not solved, causing problems in the production process such as clogged pipes, or making it difficult to produce high-quality insoluble sulfur

Method used

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  • High quality insoluble sulfur and method for production the same
  • High quality insoluble sulfur and method for production the same
  • High quality insoluble sulfur and method for production the same

Examples

Experimental program
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Effect test

Embodiment 1

[0075] Sulfur vapor is produced by vaporizing liquid sulfur at about 130°C at about 635°C and supplied to the gas-liquid separator at 9kg / cm 2 maintain until the sulfur vapor is bright yellow (confirmed through the vent) and the liquid collected in the lower part of the gas-liquid separator is a red wine color without impurities, thereby removing sulfur droplets (liquid sulfur) from the sulfur vapor, after which Sulfur vapor was supplied at a flow rate of 500 kg / hr to a cooler filled with about 40% of carbon disulfide at 30° C. to 60° C. for cooling. At this time, the solution was continuously recirculated from the lower part of the cooler to the upper part at 120 tons / hr. The temperature inside the cooler is maintained at 30°C to 60°C and the pressure at 1.0kg / cm by the heat exchanger installed in the recirculation pipe of the cooler 2 ~1.2kg / cm 2 , and the carbon disulfide suspension containing the generated insoluble sulfur was stirred by a stirrer arranged at the lower p...

Embodiment 2

[0087] Sulfur vapor is produced by vaporizing liquid sulfur at about 130°C at about 635°C and supplied to the gas-liquid separator at 9kg / cm 2 Keep it down until the sulfur vapor is bright yellow (confirmed through the vent) and the liquid collected in the lower part of the gas-liquid separator is a red wine color without impurities, so that the sulfur droplets (liquid sulfur) are removed from the sulfur vapor, and then the sulfur vapor is separated into A flow rate of 600 kg / hr was supplied to a cooler filled with about 30% of carbon disulfide at 30° C. to 60° C. for cooling. At this time, the solution was continuously recirculated from the lower part of the cooler to the upper part at 120 tons / hr. The temperature inside the cooler is maintained at 30°C to 50°C and the pressure at 1.0kg / cm by the heat exchanger installed in the recirculation pipe of the cooler 2 ~1.2kg / cm 2 , and the carbon disulfide suspension containing the formed insoluble sulfur was stirred by a stirrer...

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Abstract

The present invention provides a high quality insoluble sulfur and a method for production the same. The method comprises molten sulfur is removed from sulfur steam by a gas-liquid separator before the sulfur steam is supplied to a cooler, so as to manufacture the high quality insoluble sulfur. According to the method for production the high quality insoluble sulfur, problems such as pipeline blockage in the manufacturing process are prevented, and the high quality insoluble sulfur whose residue on sieve(over 1.5% for 100 meshes) is low in content can be manufactured. The insoluble sulfur manufactured according to the method is over 90% in content of insoluble sulfur in relative to the total sulfur, lower than 1.5% in residue on sieve, lower than 71% in high throughput screening (HTS), and 5-30 [mu]m in particle size, has a high quality, and thus can serve as a vulcanizing agent in the rubber industry, especially for producing tires.

Description

technical field [0001] The invention relates to high-quality insoluble sulfur and a manufacturing method thereof. More specifically, the present invention relates to a method for producing high-quality insoluble sulfur by passing sulfur vapor through a gas-liquid separator to remove liquid sulfur before supplying sulfur vapor to a cooler. Background technique [0002] The so-called insoluble sulfur (insoluble sulfur) refers to carbon disulfide (CS2) insoluble sulfur, also known as polymeric sulfur (polymeric sulfur). Generally, sulfur in this form is a polymer having a molecular weight of 100,000 or more and a particle size of 5 μm to 30 μm, composed of thousands of sulfur atoms. Insoluble sulfur is non-crystalline, and its form is different from soluble sulfur which is composed of crystals. [0003] A generally known method for producing insoluble sulfur is as follows: After heating liquid sulfur (S8) to form sulfur vapor, the sulfur vapor is rapidly cooled using carbon d...

Claims

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Application Information

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IPC IPC(8): C01B17/12
CPCC01B17/12B01J19/24C01B17/02
Inventor 俞宣警金珉吾
Owner H SULFUR
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