Wastes from Manufacture of Dyes and Pigments. Volume 9. Sulfur Dyes

摘要

A preliminary study of the manufacture of sulfur dyes was conducted to determine if process waste streams might contain hazardous material. The study first identifies the dyes and pigments that belong to this segment of the industry, the amounts produced, and the known U.S. producers. The chemistry of these dyes is discussed as well as the overall production process and waste treatment practices. Several waste streams that could contain hazardous material are identified and two companies that produce representative dyes are recommended for a sampling program to confirm the composition and amounts of these waste streams.