Heat-resistant stable non-soluble sulfur and production method thereof

A production method and sulfur technology, applied in the preparation/purification of sulfur, etc., can solve the problems of poor thermal stability and low yield, etc.

Inactive Publication Date: 2017-11-10
SHANGHAI JINGHAI ANHUI CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The technical solution provided by the present invention can make up to a certain extent the defects of poor heat-resistant stability and low yield in the heat-resistant and stable insoluble sulfur provided by the prior art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A heat-resistant and stable insoluble sulfur and a production method thereof, comprising the following steps:

[0023] (1) Pre-melting: Put the raw material industrial sulfur into the molten sulfur pool at 130°C for pre-melting until the raw material sulfur becomes liquid sulfur;

[0024] (2) Reaction: import liquid sulfur into the reactor, 2 Under the conditions of protection and mechanical stirring, adjust the temperature to 240°C, add 0.6% KI, and react for 1h;

[0025] (3) Quenching: the product obtained in step (2) is placed in a 2 Gasification is carried out in the gasification chamber to form superheated steam, and the superheated steam is sprayed into the quenching liquid for quenching;

[0026] (4) Extraction: adopt organic solvent to extract the sulfur in the quenching liquid;

[0027] (5) Grinding: Dry the extracted sulfur in a dryer at 45°C until the moisture is reduced to 2% of that before drying, then grind it in a tube mill at 25°C, and grind it to 300...

Embodiment 2

[0029] A heat-resistant and stable insoluble sulfur and a production method thereof, comprising the following steps:

[0030] (1) Pre-melting: Put the raw material industrial sulfur into the molten sulfur pool at 150°C for pre-melting until the raw material sulfur becomes liquid sulfur;

[0031] (2) Reaction: import liquid sulfur into the reactor, 2 Under the conditions of protection and mechanical stirring, adjust the temperature to 240°C, add 0.6% KI, and react for 1h;

[0032] (3) Quenching: the product obtained in step (2) is placed in a 2 Gasification is carried out in the gasification chamber to form superheated steam, and the superheated steam is sprayed into the quenching liquid for quenching;

[0033] (4) Extraction: adopt organic solvent to extract the sulfur in the quenching liquid;

[0034] (5) Grinding: Dry the extracted sulfur in a dryer at 50°C until the water content is reduced to 4% before drying, then grind it in a tube mill at 30°C, and grind it to 400 me...

Embodiment 3

[0036] A heat-resistant and stable insoluble sulfur and a production method thereof, comprising the following steps:

[0037] (1) Pre-melting: Put the raw material industrial sulfur into the molten sulfur pool at 135°C for pre-melting until the raw material sulfur becomes liquid sulfur;

[0038] (2) Reaction: import liquid sulfur into the reactor, 2 Under the conditions of protection and mechanical stirring, adjust the temperature to 240°C, add 0.6% KI, and react for 1h;

[0039] (3) Quenching: the product obtained in step (2) is placed in a 2 Gasification is carried out in the gasification chamber to form superheated steam, and the superheated steam is sprayed into the quenching liquid for quenching;

[0040] (4) Extraction: adopt organic solvent to extract the sulfur in the quenching liquid;

[0041] (5) Grinding: Dry the extracted sulfur in a dryer at 46°C until the moisture is reduced to 3% before drying, then grind it in a tube mill at 26°C, and grind it to 330 mesh S...

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Abstract

The invention relates to the field of non-soluble sulfur, in particular to heat-resistant stable non-soluble sulfur and a production method thereof. The production method comprises the steps of (1) premelting; (2) reaction; (3) quenching; (4) extraction; (5) smashing. The heat-resistant stable non-soluble sulfur provided by the invention can compensate the shortcomings of low heat resistance stability and low yield of non-soluble sulfur in the prior art to a certain extent.

Description

technical field [0001] The invention relates to the field of insoluble sulfur, in particular to a heat-resistant and stable insoluble sulfur and a production method thereof. Background technique [0002] Insoluble sulfur is mainly used as an advanced accelerator and vulcanizing agent in the rubber industry, and is widely used in the manufacture of tires and other rubber composite products, such as tire carcass rubber, buffer rubber, white sidewall rubber and retreading, It can also be used in rubber materials such as rubber hoses and tapes bonded with skeleton materials, and can also be used in rubber products such as cables, rubber rollers, oil seals, rubber shoes, etc., and also used in light-colored rubber products with a large amount of sulfur. Because insoluble sulfur can make the meridian, steel wire and rubber stick more firmly, effectively prevent the rubber from blooming, and improve the heat resistance and wear resistance of the tire, therefore, insoluble sulfur is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B17/12
CPCC01B17/12C01P2006/37
Inventor 陈杰胡建敏
Owner SHANGHAI JINGHAI ANHUI CHEM
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