A kind of processing method of the sulfur mud of dicyclohexyl disulfide

Abstract

The invention discloses a method for treating sulfur mud of dicyclohexyl disulfide. The sulfur mud waste residue is mixed with a sodium sulfide solution, stirred until the sulfur mud waste residue is no longer dissolved, and then filtered, and the filtrate is stored and reused as a bicyclic The raw material of hexyl disulfide; the resulting filter residue is fully stirred and mixed with hydrochloric acid, left to stand, and filtered; the filter residue is added to water and stirred and washed until no water-soluble substances are dissolved in the water; the washed filter residue is dried and treated as solid waste. The invention has a very good recovery effect on the sulfur mud waste generated in the production process of dicyclohexyl disulfide, can not only improve the recycling rate of sulfur, avoid waste of resources, save chemical production costs, but also reduce the production process The waste solids produced in the process can avoid environmental pollution to a certain extent, conform to the modern concept of environmental protection, and practice the concept of green chemical industry.

Description

A kind of treatment method of sulfur sludge of dicyclohexyl disulfide technical field The present invention relates to a kind of processing method of the sulfur mud produced in the process of producing dicyclohexyl disulfide, concrete It relates to a method for recovering low-grade sulphur from the sulphur sludge produced in the process of producing dicyclohexyl disulfide, belonging to The technical field of dicyclohexyl disulfide waste treatment. Background technique The structural formula of dicyclohexyl disulfide (being called for short disulfide) is, can be used as food fragrance It is used in the fields of dyes, medicine, pesticides, organic synthesis, etc.; in the rubber auxiliary industry, dicyclohexyl disulfide is a synthetic anti- One of the important intermediates of coke agent CTP (N-cyclohexylthiophthalimide). Modern rubber processing technology is moving towards high With the development of temperature and high speed, the status of anti-scorch agent h...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the waste of resources and environmental pollution problems in the sulfur mud in the prior art, the invention provides a treatment method for the sulfur mud of dicyclohexyl disulfide, which uses sodium sulfide to reclaim the low-grade sulfur in the sulfur mud to avoid It reduces the waste of resources, increases the added value of sulfur mud, and reduces environmental pollution, providing an effective way for the reuse and post-treatment of sulfur mud