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发明公开
CN105670339A 一种C.I.颜料黄12的制备方法 无效 - 驳回

一种C.I.颜料黄12的制备方法
摘要：
本发明提供了一种C.I.颜料黄12的制备方法，该方法重氮采用亚硝酰硫酸进行重氮化，偶合先在微型反应器中反应，然后再在偶合锅中反应；最终制备得到的C.I.颜料黄12粒径均匀、颗粒松软，具有优良的鲜艳度、着色力强，耐晒好，且有较好的透明度和遮盖力。
摘要（英）：

The invention provides a preparation method of C.I. pigment yellow 12. The preparation method comprises the following steps: carrying out diazotization by the use of nitrosyl sulfuric acid, reacting in a microreactor and reacting in a coupling vessel for coupling so as to finally prepare the C.I. pigment yellow 12. The product has advantages of uniform particle size, soft particle, excellent brightness, strong tinting strength, good light resistance and good transparency and covering power.

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