CN107827714A - 采用制备型高效液相色谱制备高纯度壬基酚的方法 - Google Patents

采用制备型高效液相色谱制备高纯度壬基酚的方法 Download PDF

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CN107827714A
CN107827714A CN201710945842.8A CN201710945842A CN107827714A CN 107827714 A CN107827714 A CN 107827714A CN 201710945842 A CN201710945842 A CN 201710945842A CN 107827714 A CN107827714 A CN 107827714A
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nonyl phenol
liquid chromatography
performance liquid
purity
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孙永跃
许爱伦
高德鑫
刘金彪
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Tianjin University of Technology
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Abstract

本发明涉及了一种采用制备型高效液相色谱制备高纯度壬基酚的方法,包括以下步骤:⑴将壬基酚原料溶于有机溶剂中,超声得到澄清溶液;⑵采用分析型高效液相色谱测定步骤⑴配制的壬基酚原料纯度;⑶采用制备型高效液相色谱仪对步骤(1)配制的原料溶液纯化,以有机溶剂的水溶液作为洗脱剂洗脱,收集目标组分;⑷采用分析型高效液相色谱测定步骤⑶收集的壬基酚产品纯度,最高可达99.90%以上。本发明公开的制备高纯度壬基酚的方法具有操作简便、产品纯度高等优点。

Description

采用制备型高效液相色谱制备高纯度壬基酚的方法
技术领域
本发明属于化学化工技术领域,具体涉及了一种采用制备型高效液相色谱制备高纯度壬基酚的方法。
背景技术
壬基酚(Nonyl Phenol,简称NP),常温下为呈淡黄色或者无色的粘稠液体,在水中的溶解度为4.9mg/L,可溶于氯仿、丙酮、乙醇和四氯化碳,属于憎水性物质,吸附性较强,不易挥发。壬基酚的化学结构由壬烷基和苯酚环组成,且一般存在于对位取代的形式;理论上壬基酚的异构物有170种,因此壬基酚相关的商品多为多种异构物组成的混合物。
在我国,壬基酚主要用于改性的酚醛树脂和表面活性剂的生产,其工业中最为常用的合成路线是以苯酚和壬烯作为生产原料直接进行缩合反应而成。壬基酚的目标产品对壬基酚的纯度、外观色度等指标具有较高要求,因此对壬基酚进行纯度精制是很有必要的。中国专利“对壬基酚的制备方法”(申请号:92109000.5),公开了以酸性离子交换树脂存在的前提下苯酚和壬烯反应分两步制备壬基酚的方法。中国专利“一种壬基酚精制工艺”(申请号:200510123489.2),公开了以苯酚和壬烯反应得到粗制壬基酚后,通过蒸发、蒸馏、精馏等步骤精制壬基酚的过程。中国专利“一种壬基酚的精制方法”(申请号:201310213195.3),公开了通过改进壬基酚的生产工艺,将副产物二壬基酚转化为产品壬基酚的方法,提高了原料利用度,节约了生产成本。但综合分析可以发现,以上方法操作较为复杂,工艺比较繁琐,且会不可避免的产生较多的试剂残留和浪费,产品的纯度也无法得到保障。
发明内容
本发明的目的在于提供一种采用制备型高效液相色谱制备高纯度壬基酚的方法,该方法操作简便,产品纯度高。
本发明的技术方案如下:
一种采用制备型高效液相色谱制备高纯度壬基酚的方法,包括以下步骤:
(1)将壬基酚原料溶于有机溶剂甲醇中,超声5min得到澄清溶液;
(2)采用分析型高效液相色谱测定步骤(1)配制的壬基酚原料纯度;
(3)将步骤(1)配制的原料溶液以0.5mL-2.5mL的进样量进样上制备型高效液相色谱,以有机溶剂甲醇的水溶液作为洗脱剂在10mL/min-20mL/min的流速下洗脱,收集目标组分;
(4)采用分析型高效液相色谱测定步骤(3)收集的壬基酚产品纯度,最高可达99.90%以上。
所述步骤(1)中的壬基酚原料溶于有机溶剂甲醇的浓度为30mg/mL。
所述步骤(2)和步骤(4)中分析型高效液相色谱的流动相A相是水,B相是甲醇,梯度条件为:0min时,A为65%,B为35%;9min时A为0,B为100%;13min时A为0,B为100%;15min时A为65%,B为35%;20min时A为65%,B为35%。检测波长为278nm。
而且,壬基酚原料纯度经多次测定的平均值为97.97%。
而且,所述步骤(3)中的进样量是0.5mL、1.0mL、1.5mL、2.0mL或2.5mL。
而且,所述进样量是2.0mL。
而且,所述步骤(3)中制备型高效液相色谱的流动相A相是水,B相是甲醇,梯度条件为:0min时,A为65%,B为35%;9min时A为0,B为100%;13min时A为0,B为100%;15min时A为65%,B为35%;20min时A为65%,B为35%。检测波长为278nm。
而且,所述步骤(3)中的流速是10mL/min、12mL/min、15mL/min、18mL/min或20mL/min。
而且,所述流速是12mL/min。
本发明的优点和技术效果如下:
本发明采用制备型高效液相色谱制备高纯度壬基酚,可将壬基酚的纯度由97.97%提高至99.90%以上。整个精制纯化过程操作简便,无需毒性较强的试剂参与,对环境及操作人员的危害较小;产品的纯度较高且质量比较稳定,不易引入新的杂质;纯化流程可重复进行。
附图说明
图1壬基酚原料的分析型高效液相色谱图
图2实施例1的制备型高效液相色谱图
图3壬基酚产品的分析型高效液相色谱图
具体实施方式
下面结合具体实施例来对本发明进行进一步的描述:
实施例1
一种采用制备型高效液相色谱制备高纯度壬基酚的方法,步骤如下:
(1)将600mg壬基酚原料溶于20mL有机溶剂甲醇中,超声5min得到澄清溶液;
(2)采用分析型高效液相色谱测定步骤(1)配制的壬基酚原料纯度,流动相A相是水,B相是甲醇,梯度条件为:0min时,A为65%,B为35%;9min时A为0,B为100%;13min时A为0,B为100%;15min时A为65%,B为35%;20min时A为65%,B为35%。检测波长为278nm。测得的原料纯度为97.96%;
(3)将步骤(1)配制的原料溶液以2.0mL的进样量进样上制备型高效液相色谱,以有机溶剂甲醇的水溶液作为洗脱剂在12mL/min的流速下洗脱,流动相A相是水,B相是甲醇,梯度条件为:0min时,A为65%,B为35%;9min时A为0,B为100%;13min时A为0,B为100%;15min时A为65%,B为35%;20min时A为65%,B为35%。检测波长为278nm。收集目标组分;
(4)采用分析型高效液相色谱测定步骤(3)收集的壬基酚产品纯度,流动相A相是水,B相是甲醇,梯度条件为:0min时,A为65%,B为35%;9min时A为0,B为100%;13min时A为0,B为100%;15min时A为65%,B为35%;20min时A为65%,B为35%。检测波长为278nm。测得的产品纯度为99.91%。
实施例2
一种采用制备型高效液相色谱制备高纯度壬基酚的方法,步骤如下:
(1)将900mg壬基酚原料溶于30mL有机溶剂甲醇中,超声5min得到澄清溶液;
(2)采用分析型高效液相色谱测定步骤(1)配制的壬基酚原料纯度,流动相A相是水,B相是甲醇,梯度条件为:0min时,A为65%,B为35%;9min时A为0,B为100%;13min时A为0,B为100%;15min时A为65%,B为35%;20min时A为65%,B为35%。检测波长为278nm。测得的原料纯度为97.99%;
(3)将步骤(1)配制的原料溶液以1.0mL的进样量进样上制备型高效液相色谱,以有机溶剂甲醇的水溶液作为洗脱剂在15mL/min的流速下洗脱,流动相A相是水,B相是甲醇,梯度条件为:0min时,A为65%,B为35%;9min时A为0,B为100%;13min时A为0,B为100%;15min时A为65%,B为35%;20min时A为65%,B为35%。检测波长为278nm。收集目标组分;
(4)采用分析型高效液相色谱测定步骤(3)收集的壬基酚产品纯度,流动相A相是水,B相是甲醇,梯度条件为:0min时,A为65%,B为35%;9min时A为0,B为100%;13min时A为0,B为100%;15min时A为65%,B为35%;20min时A为65%,B为35%。检测波长为278nm。测得的产品纯度为99.83%。
实施例3
一种采用制备型高效液相色谱制备高纯度壬基酚的方法,步骤如下:
(1)将300mg壬基酚原料溶于10mL有机溶剂甲醇中,超声5min得到澄清溶液;
(2)采用分析型高效液相色谱测定步骤(1)配制的壬基酚原料纯度,流动相A相是水,B相是甲醇,梯度条件为:0min时,A为65%,B为35%;9min时A为0,B为100%;13min时A为0,B为100%;15min时A为65%,B为35%;20min时A为65%,B为35%。检测波长为278nm。测得的原料纯度为97.95%;
(3)将步骤(1)配制的原料溶液以0.5mL的进样量进样上制备型高效液相色谱,以有机溶剂甲醇的水溶液作为洗脱剂在18mL/min的流速下洗脱,流动相A相是水,B相是甲醇,梯度条件为:0min时,A为65%,B为35%;9min时A为0,B为100%;13min时A为0,B为100%;15min时A为65%,B为35%;20min时A为65%,B为35%。检测波长为278nm。收集目标组分;
(4)采用分析型高效液相色谱测定步骤(3)收集的壬基酚产品纯度,流动相A相是水,B相是甲醇,梯度条件为:0min时,A为65%,B为35%;9min时A为0,B为100%;13min时A为0,B为100%;15min时A为65%,B为35%;20min时A为65%,B为35%。检测波长为278nm。测得的产品纯度为99.77%。
实施例4
一种采用制备型高效液相色谱制备高纯度壬基酚的方法,步骤如下:
(1)将750mg壬基酚原料溶于25mL有机溶剂甲醇中,超声5min得到澄清溶液;
(2)采用分析型高效液相色谱测定步骤(1)配制的壬基酚原料纯度,流动相A相是水,B相是甲醇,梯度条件为:0min时,A为65%,B为35%;9min时A为0,B为100%;13min时A为0,B为100%;15min时A为65%,B为35%;20min时A为65%,B为35%。检测波长为278nm。测得的原料纯度为97.97%;
(3)将步骤(1)配制的原料溶液以2.5mL的进样量进样上制备型高效液相色谱,以有机溶剂甲醇的水溶液作为洗脱剂在20mL/min的流速下洗脱,流动相A相是水,B相是甲醇,梯度条件为:0min时,A为65%,B为35%;9min时A为0,B为100%;13min时A为0,B为100%;15min时A为65%,B为35%;20min时A为65%,B为35%。检测波长为278nm。收集目标组分;
(4)采用分析型高效液相色谱测定步骤(3)收集的壬基酚产品纯度,流动相A相是水,B相是甲醇,梯度条件为:0min时,A为65%,B为35%;9min时A为0,B为100%;13min时A为0,B为100%;15min时A为65%,B为35%;20min时A为65%,B为35%。检测波长为278nm。测得的产品纯度为99.69%。
需明确的是,本发明不限于这里的实施例,本领域技术人员根据本发明所做出的显而易见的改进和修饰都应该在本发明的保护范围之内。

Claims (9)

1.一种采用制备型高效液相色谱制备高纯度壬基酚的方法,其特征在于:包括以下步骤:
⑴将壬基酚原料溶于有机溶剂甲醇中,超声5min得到澄清溶液;
⑵采用分析型高效液相色谱测定步骤⑴配制的壬基酚原料纯度;
⑶将步骤⑴配制的原料溶液以0.5mL-2.5mL的进样量注入到制备型高效液相色谱仪中,以有机溶剂甲醇的水溶液作为洗脱剂在10mL/min-20mL/min的流速下洗脱,收集目标组分;
⑷采用分析型高效液相色谱测定步骤⑶收集的壬基酚产品纯度,最高达99.90%以上。
2.根据权利要求1所述的采用制备型高效液相色谱制备高纯度壬基酚的方法,其特征在于:所述步骤⑴中的壬基酚原料溶于有机溶剂甲醇的浓度为10-30mg/mL。
3.根据权利要求1所述的采用制备型高效液相色谱制备高纯度壬基酚的方法,其特征在于:所述步骤⑵和步骤⑷中分析型高效液相色谱的流动相A相是水,B相是甲醇,梯度条件为:0min时,A为65%,B为35%;9min时A为0,B为100%;13min时A为0,B为100%;15min时A为65%,B为35%;20min时A为65%,B为35%。检测波长为278nm。
4.根据权利要求3所述的采用制备型高效液相色谱制备高纯度壬基酚的方法,其特征在于:步骤⑴中壬基酚原料纯度平均值为97.97%。
5.根据权利要求1所述的采用制备型高效液相色谱制备高纯度壬基酚的方法,其特征在于:所述步骤⑶中的进样量是0.5mL、1.0mL、1.5mL、2.0mL或2.5mL。
6.根据权利要求5所述的采用制备型高效液相色谱制备高纯度壬基酚的方法,其特征在于:所述进样量是2.0mL。
7.根据权利要求1所述的采用制备型高效液相色谱制备高纯度壬基酚的方法,其特征在于:所述步骤⑶中制备型高效液相色谱的流动相A相是水,B相是甲醇,梯度条件为:0min时,A为65%,B为35%;9min时A为0,B为100%;13min时A为0,B为100%;15min时A为65%,B为35%;20min时A为65%,B为35%。检测波长为278nm。
8.根据权利要求1所述的采用制备型高效液相色谱制备高纯度壬基酚的方法,其特征在于:所述步骤⑶中的流速是10mL/min、12mL/min、15mL/min、18mL/min或20mL/min。
9.根据权利要求8所述的采用制备型高效液相色谱制备高纯度壬基酚的方法,其特征在于:所述流速是12mL/min。
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