Developing situation of dyestuff industry and looking forward to the market of dyestuff and pigment intermediates in china;

Pretreatment of quinacridinone pigment-intermediate wastewater by ferric-carbon microelectrolysis combined Fenton oxidation process;

Abstract : In this paper,progress in synthetic method of pigment intermediate of 3,3' - dichlorobenzidine are reviewied.

Naphthol AS-BI is an important pigment intermediate, which is used to synthesize a new kind of high quality azo dyes.

Experimental Study on Quinacridinone Pigment-intermediate Wastewater Treatment by SBR Biological behind Treatment;

Catalytic synthesis of 1-amino-2-hydroxy-4-naphthalenesulfonic acid as a dye intermediate;

Non-carcinogenic dye intermediate 2′-methyl-4,5′-diaminobenzene sulfonanilide(Ⅳ) was synthesized from p-methylaniline and p-aminoacetanilide by acetylation,chlorosulfonation,amidation and deacetylation.

Benzidine is an important dye intermediate,but its carcinogenicity has been confirmed.

The treatment of high-salinity dye intermediate wastewater by electrochemical method;

The electrochemistry method was applied for the treatment of high-salinity dye intermediate wastewater from the process of 3-diethylaminophenol.