Continuous process for preparing copper phthalocyanine

Details Continuous process for preparing copper phthalocyanine Continuous process for preparing copper phthalocyanine

1973-11-14

1977-02-22

Randolph, John D.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C09B 4704

Patent

active

040091805

ABSTRACT:
A continuous process for preparing copper phthalocyanines by caking a mixture of phthalodinitrile, and a copper salt which comprises carrying out the reaction in a continuously working, heatable, tubular vibration mill, which contains iron or steel bars in the grinding room.
In comparison with the continuous processes hitherto known this process requires a considerably smaller amount of thermal energy from outside, since the amount of heat formed in the strongly exothermic condensation process is, to a considerable extent conducted away from the reaction zone, with the aid of heat-conducting grinding bars, and is used in order to heat up the freshly introduced starting product to room temperature.

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Ullmann's Encyklopadie der techn. Chemie, vol. 13, p. 705 (1962), KHD Industrieanlagen AG publications including (1) cover letter; (2) extracts from the 1956 publication: 100 Jahre Humboldt 1856-1956 (3) PALLA-Schwingmuhlen Referenzliste R2-170; and (4) PALLA vibration mills 2-170e.
Kirk-Othmer, Encyclopedia of Chemical Technology, vol. 18, pp. 347-348, 353-54 (1969).

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