System for recycling sulfur-containing wastewater from sulfurized isobutene production

By adopting a dual dechlorination reactor and a wastewater transfer tank design in the sulfurized isobutylene production system, the problem of the inability to reuse sulfur-containing wastewater was solved, wastewater reuse was realized, and production costs and equipment corrosion were reduced.

CN224358386UActive Publication Date: 2026-06-16GANSU JINBODA NEW MATERIAL TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GANSU JINBODA NEW MATERIAL TECHNOLOGY CO LTD
Filing Date
2025-06-16
Publication Date
2026-06-16

AI Technical Summary

Technical Problem

In the traditional sulfurized isobutylene production process, a large amount of sulfur-containing alkaline wastewater is generated for every ton of product produced, leading to increased production costs and greater treatment pressure.

Method used

A sulfurized isobutylene production system is designed, which utilizes two dechlorination reactors for dechlorination reactions, replaces unreacted chlorine with sodium sulfide, and collects sulfur-containing wastewater in a wastewater transfer tank for reuse in the next batch of primary dechlorination reactions, thus achieving wastewater reuse.

Benefits of technology

It enables the reuse of sulfur-containing wastewater, reduces production costs and wastewater treatment pressure, reduces equipment corrosion, and improves resource utilization.

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Abstract

The utility model relates to vulcanized isobutene production technical field, specifically is a kind of vulcanized isobutene production sulfur-containing wastewater recycling system, the bottom of high-pressure reaction kettle is connected with first conveying pipe respectively by tee joint, the first conveying pipe is connected with first dechlorination kettle, the first dechlorination kettle bottom discharge end is connected with second conveying pipe respectively by tee joint, the second conveying pipe is connected with second dechlorination kettle, the second dechlorination kettle bottom is connected with third conveying pipe respectively by tee joint, the third conveying pipe is connected with wastewater transfer tank, the wastewater transfer tank discharge end is connected with the first dechlorination kettle by circulation pipe.The utility model is dechlorinated by setting two dechlorination kettle, sodium sulfide can replace the chlorine that is not replaced in primary dechlorination reaction when secondary dechlorination, sulfur-containing wastewater is collected using wastewater transfer tank, then it is recycled to the next batch primary dechlorination reaction, realize the recycling of sulfur-containing wastewater, can reduce the wastewater treatment pressure of producer.
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