A kind of high stability sulfur product and its production process

A technology with high stability and production process, which is applied in the direction of sulfur preparation/purification, etc., can solve the problems of poor thermal stability of insoluble sulfur, achieve the effect of ensuring thermal stability, preventing the reduction of insoluble sulfur content, and ensuring performance

Active Publication Date: 2020-04-03
SHANGHAI JINGHAI ANHUI CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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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  • A kind of high stability sulfur product and its production process
  • A kind of high stability sulfur product and its production process
  • A kind of high stability sulfur product and its production process

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 ordinary 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 pr...

Claims

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Application Information

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