Method for producing insoluble sulfur

A production method and sulfur technology, applied in the preparation/purification of sulfur, etc., can solve problems such as unfavorable environmental protection, low melting point of products, easy corrosion of equipment, etc., and achieve continuous production, facilitate subsequent processing, and improve production efficiency. Effect
CN102070127AActive Publication Date: 2011-05-25四川中信华诚化工科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
四川中信华诚化工科技有限公司
Publication Date
2011-05-25

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Abstract

The invention discloses a method for producing insoluble sulfur, and belongs to the field of inorganic fine chemical engineering. The production method comprises the following steps of: (1) melting and polymerization; (2) atomization and cold quenching (3) solidification; (4) centrifugal separation; (5) continuous drying; and (6) crushing, screening and charging oil to obtain a finished product. The method is a continuous production method; by the method, the yield of the product is improved; and the product has high purity and stable quality.
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Description

technical field

[0001] The invention relates to a production process method, in particular to a production method of insoluble sulfur. Background technique

[0002] Insoluble sulfur, also known as polymeric sulfur, is obtained by thermal polymerization of ordinary sulfur and named after it is insoluble in carbon disulfide. The number of sulfur atoms in its molecular chain is as high as 108 or more, and it has the viscoelasticity and molecular weight of high polymers. Mainly used as an advanced accelerator and vulcanizing agent in the rubber industry, it is widely used in the production of tires and other rubber composite products.

[0003] At present, there are mainly two methods for producing insoluble sulfur, namely, high-temperature gasification and low-temperature melting. The gasification method has the advantage of high single-pass yield of insoluble sulfur because of the polymerization reaction at high temperature, but the gasification method is usually carried out a...

Claims

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