Process for continuously producing insoluble sulfur by pipeline

Abstract

The invention discloses a process for continuously producing insoluble sulfur by a pipeline. In the process, the insoluble sulfur is produced by adopting the sealed pipeline, steps forming a flow for producing the insoluble sulfur are sequentially performed on each section of the pipeline and corresponding process conditions are provided for materials of each section of pipeline so as to realize the pipeline type continuous production of the insoluble sulfur. The pipeline for producing the insoluble sulfur is divided into a pipeline sulfur melting section, a pipeline heating section, a pipeline quenching section, a pipeline curing section, a pipeline washing section, a pipeline separation section and a pipeline drying section. A sulfur raw material enters the pipeline sulfur melting section, and is sequentially subjected to sulfur melting, heating, quenching, curing, washing, separation and drying, and finally, the insoluble sulfur is automatically discharged from the pipeline drying section. The process is used for producing the insoluble sulfur, has the advantages of high quality of product, low cost, energy saving, environmental friendliness, safety and the like, and is applied to the continuous mass production of the insoluble sulfur.

Description

technical field [0001] The invention relates to a pipeline-type continuous production process of insoluble sulfur, which belongs to the technical field of fine chemicals. Background technique [0002] Insoluble sulfur (IS) is insoluble in sulfur dioxide (CS 2 ) is a linear polymer polymeric sulfur, which is a non-toxic polymer modified variety of ordinary sulfur. Insoluble sulfur is chemically inert and physically inert. It is not easy to migrate when used in rubber vulcanization, so it can increase the viscosity of vulcanized rubber, prevent frosting, reduce scorching and prolong the storage time of rubber materials. It is recognized as the best rubber vulcanizing agent. As a vulcanizing agent and a vulcanization accelerator, insoluble sulfur has been widely used in tire carcass rubber, buffer rubber, and the manufacture of tires, rubber hoses, cables, latex products, etc. [0003] The synthesis methods of insoluble sulfur mainly include gasification method, melting metho...

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Problems solved by technology

[0004] The purpose of the present invention is, according to the advantages and disadvantages of the existing insoluble sulfur production process, design a new pipeline type continuous production of insoluble sulfur process, solve the shortcomings of the traditional gasification method and melting method to produce insoluble sulfur, obtain high quality, Insoluble sulfur with high stability and large-scale production

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