Production and process of sulfur black
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Are there any experts in dyes who could provide some explanations on the production and processes of vulcanized black dye? What are the main raw materials used, and what pollutants are contained in the wastewater discharged? :handshake, many thanks
Raw materials for sulfur black BN: 2,4-dichlorobenzene, liquid alkali, sodium sulfide. Since I cannot upload images, the production process is described in the book „Practical Production Techniques for Fine Chemicals – Dye Manufacturing Technology“ by Song Xiaoping. The download address is: http://www.mujucad.com/read-htm-tid-23471.html. You can find an overview of the production process for this dye by checking the table of contents