精品久久久久久久换人妻,日韩人妻无码精品无码中文字幕,久久久久国产精品免费免费搜索,久久久久国产精品熟女影院

資訊中心NEWS CENTER

在發(fā)展中求生存,不斷完善,以良好信譽(yù)和科學(xué)的管理促進(jìn)企業(yè)迅速發(fā)展

首頁(yè)-技術(shù)文章-利用H-Cube 連續(xù)流動(dòng)氫化儀及納米級(jí)鉑催化劑選擇性還原肉桂醛

企業(yè)新聞 技術(shù)文章

利用H-Cube 連續(xù)流動(dòng)氫化儀及納米級(jí)鉑催化劑選擇性還原肉桂醛

更新時(shí)間:2012-08-24       點(diǎn)擊次數(shù):1746

INTRODUCTION
Selective catalytic hydrogenation of a-b-unsaturated aldehydes is an important step in the industrial preparation of fine chemicals and attracts much interest for fundamental research in catalysis1. Cinnamyl alcohol plays an important role in the perfume and flavouring industries. The process can, however, lead to three different products: saturated aldehyde, saturated alcohol
and the desired unsaturated alcohol (see Scheme 1.). The hydrogenation of the C=C bond in a-b-unsaturated aldehydes is both kinetically and thermodynamically more favorable than that of the C=O group2. The most significant factors determining the selectivity are: the type and the structure of the active metal, the type of the substrate, and the conditions of the reaction,
namely, the hydrogen pressure and the reaction temperature. The influence of the latter factors can be easily investigated by using the H-Cube®, which is a standalone hydrogenation reactor combining continuous-flow microchemistry with on-demand hydrogen generation and a disposable catalyst cartridge (CatCart®) system3.


Official ThalesNano website: www.thalesnano.com
Official ThalesNano contact : flowchemistry@thalesnano.com

 

  

更多詳情,請(qǐng)培安公司:
:北京: 上海:  成都: 廣州:
: sales@pynnco.comwww.pynnco.com
SCROLL

Copyright©2025 培安有限公司 版權(quán)所有 All Rights Reserved    備案號(hào):京ICP備17026558號(hào)-1    總訪問(wèn)量:410051

技術(shù)支持:化工儀器網(wǎng)    管理登錄    sitemap.xml

国产麻豆精品一区| 国产日韩欧美在线视频一本到| 无码国产激情在线观看| 最近中文字幕mv免费高清视频 | 99久久无码一区人妻| 日产精品码2码三码四码区别| 在线天堂中文最新版网| 99精品国产一区二区三区不卡| 极品少妇xxxx精品少妇偷拍| 最近免费中文字幕2018视频| 熟妇人妻一区二区三区四区| 日产精品二线三线区| japanese少妇高潮潮喷| 久久精品国产亚洲av无码偷窥| 亚洲精品无码一区二区三区网雨 | 啊灬啊灬啊灬快灬深视频无遮掩| 国产AⅤ激情无码久久久无码| 精品成在人线av无码免费看| 性做久久久久久久久| 久久婷婷五月综合97色直播| 亚洲AV无码一区二区二三区∝| 99久久久无码国产精品| 最近中文字幕完整在线看一| 最近中文字幕mv免费高清视频| 国内精品视频一区二区三区八戒| 久久久久久精品无码人妻| 久久久久亚洲AV成人片一区| 国产精品无码免费专区午夜| 777国产偷窥盗摄精品品在线| 精品久久久久久无码中文字幕| 日本乱妇乱熟乱妇乱色a片| 精品爆乳一区二区三区无码av| 精品少妇爆乳无码av无码专区| 无码少妇一区二区| sm抽打调教女人光屁股的视频| 色琪琪av中文字幕一区二区| 久久精品国产亚洲AV大全| 99国内精品久久久久久久| 15学生初次破初视频免费 | 久久精品国产69国产精品亚洲| 在线亚洲人成电影网站色www|