五百二十章 剑走偏峰(1 / 1)

吴总私下里找到王近之说:“现在,企业出现了危机,我想还是由你来负责进行产品色泽的攻关比较合适。”

刚完成碘回收,王近之整个人都是灰头土脑的,还没缓过神来呢,听吴总这么一说,有些气愤地回复:“吴总啊,我的手伸太长了不好,造影剂是二部负责的产品,二部部长的水平高,这事让他负责完成吧,插入碘回收已是无奈,现在,又插手到正常化生产的产品中去,我怕以后的工作不好协调。”

“别说伸不伸手的问题,水平高低公司自有评价,你的气量也不要这么小,这是关系到公司命运的紧急任务,开发中心所有工作暂停也得把它在短时间内拿下,人与分析仪器怎么配,你自个看着办,现在,我召集人员开一个协调会。”也不待王近之再说,吴总提起了办公桌上的电话,开始通知。

会上,徐龙川简述了客户发现色泽偏深的过程与投诉信件后,王正林汇报开发二部的小试进展情况说:“目前,小试中采取了重结晶、活性炭脱色、阴、阳树脂降低电导率等等公司里常规的处理色泽的方法,都有一定的效果,但降幅都不大,无法得到与一年前一样色泽号的产品。”

“这个色泽是由什么引起的呢,色泽深的与浅的在液相指标上有没有什么不同?”王近之转向赵定岳问道。

赵定岳打开了PPT,指着一张表格说:“我把所有批次的液相指标的主峰与杂质峰都统计了,色泽好的批次与差的批次在杂质峰上看不到明显的差别。”

分析会没找到色泽偏深的原因与解决问题的实验方向,会议结束前,吴总宣布分成三个小组,各自发挥自个的能动性,寻找产品脱色的方法。王近之挑了周飞鸯与张朋袅作为组员,原因无他,二人虽是女生,但干活拼命。

公司常用的脱色方法人家已用了无效,再在这些个思路上重复绝对是浪费时间,那么,有什么新思路可以尝试呢?

各种颜色之间存在着互补,黄与蓝互补会成白色,现在的产品呈很浅的黄色,能不能用极浅的蓝色系的产品与它混和对冲呢?在新药合成时,控制树脂过法,王近之曾得到过呈蓝色底的造影剂,掌握一些技巧。两者搭配后,目测果然呈无色,可一到分光光度计下,立马原形毕露,吸光度是增加的而不是降低的。

这方法不灵,用正丁醇重结晶后再溶解脱色试一试呢?试验的结果也无明显改善。

有些发色基团与水的溶解度很好,但与有机溶剂溶解性很差,可以用甲醇把碘海醇溶解了,再用活性炭或树脂试一试。想到这里,王近之吩咐周飞鸯与张朋袅立即开始投料。

周飞鸯焦急地向王近之作揖求饶说:“王总,我们总共只有四套磁力搅拌,向边上又拿了五套,九套小试用不同的方法投满了,再投得夜里加班,我们俩是女生,厂车开走我们怎么回去?”

忙着实验,竟忘了这个,王近之说:“投好料,脱色到明天上班后再过滤,今天我送你们俩回家。”

早上过来过滤后,色泽没有明显的改善,还有什么招呢?只有尝试化学氧化还原脱色一条路,可是,一用了化学还原剂,一是易掉碘,二是引入其它杂质,思来想去,王近之计划用锌粉还原试一试,还原后生成的锌离子可以用阳树脂吸附去除。

想到这里,王近之立即叫顾斌文从回收碘车间拿了几百克的锌粉送到实验室,投入到色泽较深的碘海醇水溶液中,观察了一下,开始时有少量白色气泡生成,十几分钟后就稳定了,搅拌一小时过滤对比,还原后的色泽确实变浅达标了,可会不会生成新杂质呢?

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