二百六十二章 技术交底(1 / 1)

周二,浙大的范教授带着两位研究生到了轻旋化工,会议室中,双方进行技术交底,由谢硕士发言说明他们三个月来在乙酰呋喃中研究的进展。

“我们采取了三氯化铝为催化剂,首先是三氯化铝与乙酰氯络合,然后,再在氯仿溶液中零下三十度以下,与呋喃反应,得到乙酰呋喃产品,经过加水破坏咯合物,水洗分层,得到黑色的氯仿层,再减压蒸馏,得到乙酰呋喃产品,反应液转化率达到93%,蒸出产品的重量收率达到55%。”谢硕士在台上讲得十分兴奋。

“那么,我们也把这三天来的进展与范教授作个汇报,我们经过对比后,采取氯化锌为催化剂,需要量为1%,然后,在氯仿溶液里常温下与醋酐反应,反应结束后,水洗,碱洗分层,得到深蓝色的氯仿层,再减压蒸馏得到乙酰呋喃产品,蒸出的产品重量收率目前为97%,产品含量为99.3%。这是我们蒸馏得到的样品。”王近之边说边拿出了一个瓶子,递给谢硕士。

“这绝不可能,用乙酰氯催化剂的用量理论上超过一摩尔当量,用醋酐,催化剂的用量理论上得超过二摩尔当量,催化剂先与酰氯或醋酐中的羰基生成络合物再与呋喃反应的,你汇报的催化剂数量违反了化工理论,完全是胡说八道。”谢硕士一听王近之的汇报,面红耳赤地站起身来反驳道。

“我的理论水平确实行差,不清楚这中间的反应原理,可是,我的实验结果绝不容人质疑,所有数据都准确可靠。

其它的可以编,产品无法编,我总不会由那里搞一些乙酰呋喃来骗你们吧,再说,国内也没有商品化的乙酰呋喃可售。”王近之晃了晃装着乙酰呋喃的圆底烧瓶。与浙大提供的棕红色的样品形成了鲜明的对比。

范教授的脸色变了变,本来,是过来作技术转让的,却出现了这样的情况,远远地超出了他的意料。

邵厂长见状忙打圆场说:“这多亏了范教授的指导,提供了我们产品思路,才使得我们在很短的时间内取得了进展。”

浙大教授指导自个的研究生几个月搞出些棕色的产品,人家几天搞出浅黄色的产品,收率还高出一倍多,这面子不怎么挂得住。范教授干笑了几声,极有风度地说:“看样子你们厂里还有高手在,我们就作为一次交流吧,一起上实验室看一看?”

实验室里,6套乙酰呋喃反应装置分成两排齐齐地开着,每排不同的操作条件,用的都是500毫升的瓶子。

“呋喃是我们厂的产品,醋酐是常见的原料,研发速度快是因为我们的原料充足。不象范教授的实验室,难得购到几十克呋喃,每次只能投几克。没范教授给我们信息,我们根本想不到开发这个产品。”王近之边介绍,边捧了范教授几句。

“催化量的氯化锌就能催化傅克反应,这个思路有些偏门,怎么被你想到的?”范教授极有兴趣地问。

“我们工厂实验室刚好有氯化锌,数量不多,我们只能省着些用,想如果反应进行不下去就补加,弯打正着,反应了一天后,拿鼻子一嗅,没有了四氢呋喃气味,推导已反应完毕,进行了后处理,结果,就得到了产品,运气好而已。”王近之谦逊地笑了笑。

“四氢呋喃与氯仿混在一起,里面还有醋酐与醋酸,这么复杂的体系,你能用鼻子分辨出有没有四氢呋喃残留,我可不可以配几个样品试一试?”范教授一百个的不相信。

常识而已,试就试呗,王近之暂时离开了实验室,等待他们配样的结果。

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