High stability sulphur product and production process thereof

A technology with high stability and high production process, applied in the direction of sulfur preparation/purification, etc., can solve the problems of poor thermal stability of insoluble sulfur, achieve the effects of ensuring thermal stability, improving thermal stability, and reducing impact

Active Publication Date: 2018-08-14
SHANGHAI JINGHAI ANHUI CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to overcome the relatively poor thermal stability of the obtained insoluble sulfur produced by the existing process, and provide a high-stability sulfur product and its production process

Method used

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  • High stability sulphur product and production process thereof
  • High stability sulphur product and production process thereof
  • High stability sulphur product and production process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A kind of production technology of high stability sulfur of the present embodiment adopts gasification-quenching method to produce insoluble sulfur, and its specific steps are:

[0042] (1) Raw material gasification: take liquid sulfur at 145°C as raw material, pump it into the gasification furnace for high-temperature gasification treatment at 688°C, and control the flow rate of liquid sulfur into the furnace to be 10 tons / 12h. The outlet gas temperature of the furnace was 590°C.

[0043](2) Quenching treatment: Pass the obtained sulfur gas into the quenching liquid, and perform quenching treatment at 70°C to obtain a viscoelastic polymer; the quenching liquid of this embodiment is made of FeCl 3 、HNO 3 Prepared with water, where FeCl 3 The mass percentage of the total weight of the quenching liquid is 1.2%, HNO 3 The mass percentage accounting for the total weight of the quenching liquid is 2.5%.

[0044] The inventor found during the research process that the gas...

Embodiment 2

[0061] A kind of production technology of high stability sulfur of the present embodiment, its concrete steps are:

[0062] (1) Raw material gasification: take liquid sulfur at 140°C as raw material, pump it into the gasification furnace for high-temperature gasification treatment at 695°C, and control the flow rate of liquid sulfur into the furnace to be 10.5 tons / 12h. The outlet gas temperature of the furnace was 610°C.

[0063] (2) Quenching treatment: Pass the obtained sulfur gas into the quenching liquid, and perform quenching treatment at 72°C to obtain a viscoelastic polymer; the quenching liquid of this embodiment is made of FeCl 3 、HNO 3 Prepared with water, where FeCl 3 The mass percentage of the total weight of the quenching liquid is 1.2%, HNO 3 The mass percentage accounting for the total weight of the quenching liquid is 2.9%.

[0064] (3) tablet washing: adopt tablet machine to carry out tabletting to the obtained viscoelastic polymer, control the thickness ...

Embodiment 3

[0072] A kind of production technology of high stability sulfur of the present embodiment, its concrete steps are:

[0073] (1) Raw material gasification: take liquid sulfur at 150°C as raw material, pump it into the gasification furnace for high-temperature gasification treatment at 710°C, and control the flow rate of liquid sulfur into the furnace to be 12 tons / 12h. The outlet gas temperature of the furnace was 610°C.

[0074] (2) Quenching treatment: Pass the obtained sulfur gas into the quenching liquid, and perform quenching treatment at 75°C to obtain a viscoelastic polymer; the quenching liquid of this embodiment is made of FeCl 3 、HNO 3 Prepared with water, where FeCl 3 The mass percentage of the total weight of the quenching liquid is 1.3%, HNO 3 The mass percentage accounting for the total weight of the quenching liquid is 2.7%.

[0075] (3) tablet washing: adopt tablet machine to carry out tabletting to the obtained viscoelastic polymer, control the thickness of...

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Abstract

The invention discloses a high stability sulphur product and a production process thereof, and belongs to the technical field of sulfur production. The production process of high stability sulfur adopts a gasification-quenching method to produce insoluble sulfur, and comprises the procedures of raw material gasification, quenching treatment, tablet washing, drying, smashing and sieving, and finished product oil charging, wherein during second-time drying treatment, a product obtained after extracting and a special stabilizer are mixed and dried together, and the addition amount of the stabilizer accounts for 2-3 percent of the mass of an obtained insoluble sulfur product. The stabilizer of a special type is added in a sulfur production process, and the sulfur production process is optimized, so that the heat stability of the obtained insoluble sulfur can be effectively improved.

Description

technical field [0001] The invention belongs to the technical field of sulfur production, and more specifically relates to a production process of high-stability sulfur. Background technique [0002] Insoluble sulfur, also known as elastic sulfur or polymeric sulfur, is a linear polymer formed by the polymerization of a large number of sulfur atoms. The relative molecular weight can reach tens of thousands. It is a non-toxic, flammable yellow powder obtained because it is insoluble in carbon disulfide. It is an allotrope and a polymer modified variety of high-polymerization form of common sulfur. Insoluble sulfur is a high-efficiency rubber vulcanizing agent, which has good distribution stability in the rubber compound, uniform vulcanization and cross-linking points of the product, can overcome the "blooming" on the surface of the rubber compound, and improve the bonding of rubber and steel wire or chemical fiber cord, etc. , so that it is widely used in the production proc...

Claims

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Application Information

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