国产97色在线 | 日韩,俄罗斯引擎YANDEX网站,亚洲国产av精品一区二区蜜芽,中文字幕乱妇无码av在线

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):1778

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:411838

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

国产美女视频黄A片免费观看软件| 亚洲精品乱码久久久久蜜桃| 人妻无码久久一区二区三区免费| 欧美喷潮久久久xxxxx| 麻豆AV天堂一区二区香蕉| 国产精品久久久久久久小说| 人妻无码久久中文字幕专区| 亚洲乱妇熟女爽到高潮的片| 欧美喷潮久久久xxxxx| 国产精品无码| 解开人妻的裙子猛烈进入| 亚洲AV综合永久无码精品天堂| 日本av在线观看| 亚洲国产精华液网站W| 寡妇两腿间黑黑的毛毛是什么| 少妇被粗大的猛烈进出免费视频 | 日韩V亚洲V欧美V精品综合| 久久久九色综合亚洲成色777| 男女野外做爰全过程69影院| 果冻传媒精选麻豆二区| 精品香蕉99久久久久网站| 精品人妻伦九区久久aaa片69| 国产精品国产三级国产AV主播| 国产av免费观看| 10000拍拍18勿入免费看| 小莹客厅激情38章至50章一区| 国产成人AV无码一二三区| 麻豆亚洲AV熟女国产一区二| 被医生绑在妇科椅调教| 精品无码一区二区三区亚洲桃色| 国产精品99久久久久久人四虎| 亚洲熟女WWW一区二区三区| 国产精品51麻豆CM传媒| 全部免费毛片在线播放 | 久久综合久久鬼色| 玩弄人妻aa性色少妇| 麻豆AV福利AV久久AV| 久久久久亚洲AV无码A片下载| 日产精品久久久久久久性色| 粗大黑人巨精大战欧美成人免费看| 国产+日韩+另类|