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发明公开
CN107828235A 一种利用CLT酸生产副产物制备酸性艳红原粉的方法及产品 无效 - 驳回

一种利用CLT酸生产副产物制备酸性艳红原粉的方法及产品
摘要：
本发明公开了一种利用CLT酸生产副产物制备酸性艳红原粉的方法及该方法制备的酸性艳红原粉，制备方法包括以下步骤：(1)在酸性条件下，将CLT酸生产副产物与亚硝酸钠进行重氮化反应，得到重氮化反应液；(2)将所述的重氮化反应液与γ酸进行偶合反应，反应完全后经过后处理得到所述的酸性艳红原粉。该方法既可以制备出价廉物美的可用于尼龙纺织品染色的酸性染料，又减少了CLT酸生产过程中所产生的副产物可能对环境造成的污染，使CLT酸工业化生产得到综合、可持续化的发展。
摘要（英）：

The invention discloses a method for preparing acid brilliant red raw powder from CLT acid production by-products and acid brilliant red raw powder prepared according to the method. The method includes steps: (1) under an acidic condition, subjecting the CLT acid production by-products and sodium nitrite to diazo-reaction to obtain diazo-reaction liquid; (2) subjecting the diazo-reaction liquid tocoupling reaction with gamma acid, and performing aftertreatment after complete reaction, so that the acid brilliant red raw powder is obtained. According to the method, cheap and great acidic dye applicable to dyeing of nylon textiles can be prepared, possible environmental pollution caused by the by-products in a CLT acid production process is reduced, and comprehensive and sustainable development of CLT acid industrial production is realized.

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