过程分析

偶氮染料合成过程中的 pH 测量

使用 Knick Ceramat 连接件在偶氮染料合成过程中进行 pH 测量

偶氮染料是数量最大的一类合成染料。它们被用作食用色素、绘画颜料、四色印刷的基本颜色（黄和洋红），以及大规模用作纺织染料。全世界仅用于天然纤维染色的偶氮染料就超过 35 万吨。

化工

主要应用概况

领域

全天候生产偶氮染料

应用

cCare - 用于染料合成的全自动传感器维护，染料合成的几乎所有基本反应步骤都与 pH 值有关，因此产物收率的优化需要可靠且低维护的 pH 测量。

测量参数

pH

主要要求

测量回路的极端条件如下：

pH = 1，盐酸
温度 = 90 °C，
压力 = 6 bar。
pH 电极的使用寿命从 8 小时到数周不等。

测量技术要求

现代化设备的染料合成分四班昼夜不停地进行。实际上所有基本反应步骤都与 pH 值有关，因此产物的收率优化取决于可靠且低维护的 pH 测量。重氮化反应需要大量盐酸，因此具有腐蚀性。反应器内衬搪瓷进行保护，偶联反应器也有橡胶衬层。测量回路的极端条件为 pH = 1

温度 = 90 °C，
压力 = 6 bar。

pH 电极的使用寿命介于 8 小时和数周之间。这些测量回路的自动化以前需要材质为哈氏合金 C4 的传统伸缩式连接件，但这些昂贵连接件的维护工作量很大。每年都要有几次拆卸连接件进行维护。

我们的解决方案

Ceramat WA 150 伸缩式连接件搭配 Unical 9000 自动清洁与校准系统，可将这些棘手的测量回路全自动化，同时提高其可用性。Ceramat 伸缩式连接件由耐腐蚀、超硬、高度抛光、可旋转的陶瓷件和同样耐腐蚀、碳纤维增强但不会移动的 PEEK 塑料外壳组成。即使经过 24 个月的运行时间，Ceramat 的密封件或其他零件也没有显现磨损。

为何选择 Knick？
经过 24 个月运行时间之后，Ceramat 的密封件、探头外壳或其他零件都不会显现磨损。

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找不到商品。

偶氮染料合成过程中的 pH 测量

使用 Knick Ceramat 连接件在偶氮染料合成过程中进行 pH 测量

主要应用概况

领域

应用

测量参数

主要要求

测量技术要求

我们的解决方案

相关产品

相关工业和应用

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