環(huán)氧丙烷的純化方法：通過(guò)連續(xù)操作的反應(yīng)萃取精餾來(lái)分離環(huán)氧丙烷中的甲醇,甲酸甲酯和醛的方法.其中醛包括甲醛,乙醛和丙醛,在粗環(huán)氧丙烷的進(jìn)料點(diǎn)上方加入含有氨或銨鹽的堿性溶液,選擇返回反應(yīng)精餾塔的冷凝液與作為產(chǎn)品的純化后的環(huán)氧丙烷的回流比在1～5之間,從而使環(huán)氧丙烷中甲醇低于600ppm,甲酸甲酯低于100ppm,醛含量低于100ppm.
名稱：毛細(xì)管柱
型號(hào)：二乙烯基苯--乙二醇--二甲基丙烯酸
規(guī)格：30M*0.32MM*7UM
zui高使用溫度：250°C
編號(hào)：20240406006
應(yīng)用：安捷倫6890,7890,7820,8860,8890
島津GC2014，GC-2010，GC-2018，GC-2030
浩瀚色譜采用氣相色譜歸一化法,此方法操作簡(jiǎn)單,只要求出校正因子即可求環(huán)氧丙烷含量的測(cè)定
Purification method of epoxypropane: A method of separating methanol, methyl formate, and aldehydes from epoxypropane through continuous reaction extraction distillation. Aldehydes include formaldehyde, acetaldehyde, and propanal. An alkaline solution containing ammonia or ammonium salt is added above the feed point of crude epoxypropane. The reflux ratio between the condensate returned to the reaction distillation tower and the purified epoxypropane as the product is selected to be between 1-5, so that the methanol in epoxypropane is below 600ppm, the methyl formate is below 100ppm, and the aldehyde content is below 100ppm
Name: Capillary Column
Model: divinylbenzene ethylene glycol dimethylacrylic acid
Specification: 30M * 0.32MM * 7UM
Zui high operating temperature: 250 ° C
Number: 20240406006
Application: Agilent 68907890782088608890
Shimadzu GC2014, GC-2010, GC-2018, GC-2030
Haohan chromatography uses gas chromatography normalization method, which is simple to operate. As long as the correction factor is calculated, the determination of epichlorohydrin content can be obtained
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