| 摘要 |
<p>The production of copper phthalocyanine in accordance with German Offenlegungsschrift No. 2,432,564 is improved by the process which is characterized in that the reaction product formed at 130 DEG -300 DEG C from optionally substituted phthalic anhydride, reaction products of optionally substituted phthalic anhydride with ammonia, or the dehydration products thereof, urea and, optionally, a catalyst is reacted with a copper salt and, optionally, a catalyst at temperatures of 150 DEG -350 DEG C and preferably 170 DEG -300 DEG C with the proviso that the catalyst is added either during the preparation of the starting material or during the reaction with the copper salt.</p> |
