Active black K-BR and nonpolluting production technology thereof

Abstract

The invention discloses an active black K-BR and a nonpolluting production technology thereof, relating to the dye field, and having a general structure as showed in the right formula, wherein Me is equal to Cr plus Co, R is equal to para / meta position / ortho position SO3 Na and COONa. The solubility of a product is more than or equal to 100 g / L, the soaping fastness is 4 level, the rubbing fastness is ranged from 4 level to 5 level, the ironing is ranged from 4 level to 5 level, the quality index is high, and the color yield of the product is high, therefore, the product can be used for deep color printing and dry powder pulp conditioning, and lowers the cost for printing and dyeing.

Description

technical field [0001] The invention relates to the field of dyes, refers to a reactive black K-BR monomer, and provides a clean production process for the reactive black K-BR monomer. technical background [0002] The existing active black K-BR adopts 4-nitro-2 amino-phenol diazonium salt and H acid solution for alkaline coupling, the chromogen is salted out and refined, and after beating, chromium sulfate, sodium acetate or cobalt sulfate, liquid caustic soda Carry out metal complexation, then perform a condensation with cyanuric chloride, and finally add ammonia water for a second condensation, then add sodium chloride and potassium chloride for salting out, filter and separate, and dry. The unit cost of the product obtained by base salting out, color base filter press, finished product synthesis, finished product salting out, finished product press filter, drying, crushing, blending process is high, the solubility is only 20g / l, the color is not deep enough, two The sal...

AI Technical Summary

Problems solved by technology

[0002] The existing active black K-BR adopts 4-nitro-2 amino-phenol diazonium salt and H acid solution for alkaline coupling, the chromogen is salted out and refined, and after beating, chromium sulfate, sodium acetate or cobalt sulfate, liquid caustic soda Carry out metal complexation, then perform a condensation with cyanuric chloride, and finally add ammonia water for a second condensation, then add sodium chloride and potassium chloride for salting out, filter and separate, and dry. The unit cost of the product obtained by base salting out, color base filter press, finished product synthesis, finished product salting out, finished product press filter, drying, crushing, blending process is high, the solubility is only 20g / l, the color is not deep enough, two The salting-out process reduces the conversion rate of the process, and the whole production process is complicated and the sewage is much

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