["1. Можно ли контролировать точку кристаллизации фенфа?

2018-06-19View Original

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У нас фуфенон чистотой 99.99%, точка кристалсации一直在4.4～4.4就是达不到4.5以上。我们也怀疑苯纯度不合格，做了pona也在99.93。水含量在30ppm左右，其他指标都合格，是什么原因导致的呢？

Reply #22018-06-20

不可能吧我这苯纯度99.97-99.985之间，结晶点一般都在5.45以上，你那纯度99.99怎么可能结晶点不合格呢？

Reply #32018-06-21

水含量不算高，抽提进料做样看看是不是环己烷多了。你做的pona是99.93，这个数值比较低了，现在一般都控制在99.95以上。

Reply #42018-06-21

抽提就是苯冰点5.45以上合格，纯度就合格，但是纯度合格，不一定冰点就合格。

Reply #52018-06-23

找到原因了我们抽提原料不带甲苯所以甲苯塔没开但是万事不能绝对所以苯塔底聚集了一些重组织现在排掉了结晶点合格了"]

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["1. Можно ли контролировать точку кристаллизации фенфа?

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