Wastes from Manufacture of Dyes and Pigments. Volume 5. Diphenylmethane and Triarylmethane Dyes and Pigments

摘要

A preliminary study of the manufacture of diphenylmethane and triarylmethane 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 and pigments is discussed as well as the overall production process and waste treatment practices. Several waste streams that could contain hazardous material are identified and five companies that produce representative dyes and pigments are recommended for a sampling program to confirm the composition and amounts of these waste streams.