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PRODUCING MACROHETEROCYCLIC PIGMENTS ON THE BASIS OF COPPER PHTHALOCYANINE (I).
The article deals with a new production technology of macroheterocyclic pigments, e. g. β-modification blue phthalocyanine pigment. The technology is based on the use of a continuous operating modular construction of machines and apparatuses at the key stages of production developed in the Technological Institute of TSTU. The synthesis of macroheterocyclic dyes is carried out in the reactor of continuous operation. The synthesized pigment requires a physical and chemical treatment in order to improve its colour and rheological parameters. The suggested way of copper phthalocyanine transition into the pigment form consists in adsorption and geometrical modification which is realized in a sectional continuous mixer-powder dispenser. The latter is a two-rotor machine with a working packing of different configurations (worm, toothed, cam) located on the rotors. The tested pigment sample of β-modification is similar to the BASF sample in colour and rheological parameters.
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