Cyclohexanone ammoximation
WebUrchin-like Nb 2 O 5 nanostructures have been used for the first time as a novel catalyst instead of conventional titanosilicate in the liquid-phase ammoximation of cyclohexanone. The as-prepared urchin-like Nb 2 O 5 nanostructures exhibit high catalytic activity in cyclohexanone ammoximation. WebUS4281194A 1981-07-28 Process for ammoximation of cyclohexanone. US7053147B2 2006-05-30 Production of unsaturated acids or esters thereof. US2859240A 1958-11-04 Production of acrylates by catalytic dehydration of lactic acid and alkyl lactates. JP3249202B2 2002-01-21 Production method of 1,1,1,2,3,3,3-heptafluoropropane …
Cyclohexanone ammoximation
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WebAug 24, 2016 · Cyclohexanone oxime, produced by cyclohexanone ammoximation, is one of the most important chemical intermediates to produce ε-caprolactam via a Beckmann intramolecular rearrangement [ 52 – 54 ]. ε-caprolactam is widely used to manufacture nylon-6 worldwide, which acts as the precursor for producing fiber, plastic, resins, so on. WebDec 31, 2004 · An intrinsic kinetic of the cyclohexanone ammoximation in the liquid phase over titanium silicate molecular sieves is investigated in an isothermal slurry reactor at different initial reactant...
WebThe modified TS-1 was examined in continuous cyclohexanone ammoximation. A high conversion of cyclohexanone (98%) and oxime selectivity (100%) was still maintained after the test reaction had been carried out up to 410 h. The modified TS-1 is able to serve as a stable catalyst for continuous cyclohexanone ammoximation. WebWu Jing is an academic researcher from East China Normal University. The author has contributed to research in topic(s): Catalysis & Acetaldehyde. The author has an hindex of 3, co-authored 5 publication(s) receiving 54 citation(s).
WebDec 21, 2015 · Improving the performance of TS-1 catalysts for continuous cyclohexanone ammoximation through controlment of active species distributi on.pdf PDF 2.03 MB Download file References (60)... WebScheme S1 Reaction network of cyclohexanone ammoximation over titanosilicates. According to the hydroxylamine route, the side reactions were complicated in the cyclohexanone ammoximation, including but not limited to the condensation and consecutive oxidation of ketone, together with deep oxidation of oximes and …
WebAbstract The skeleton desilication accompanied by Ti active sites leaching accounts for the dominant chemical deactivation reasons during the clean industrial production of …
WebApr 1, 2015 · A continuous flow microfluidic system was developed to evaluate the reaction kinetics of cyclohexanone ammoximation over TS-1 catalyst. An ultrasonic field was … hunterhill booksWebApr 10, 2024 · Especially, cyclohexanone oxime (CHO) is the key intermediate for the production of ε-caprolactam, a monomer for the nylon-6 and plastics [3], [4]. Current industrial methods for CHO production mainly include “cyclohexanone-hydroxylamine”[5], “cyclohexanone-ammoximation” [6] and “cyxlohexane-photonitrosation” [7]. hunter hill apartments reviewsWebNov 16, 2011 · By fitting the experimental and calculated data, it was found that cyclohexanone ammoximation over the clay-based TS-1 composite follows the … marvel bowling shirtsWeb合作机构. 中国地质大学(北京)能源学院 695; 中联煤层气有限责任公司 60; 中联煤层气国家工程研究中心有限责任公司 31; 中国地质大学 27; 中国石油天然气股份有限公司 26; 中国矿业大学 26; 中国石油勘探开发研究院廊坊分院 22; 中海油研究总院 18; 中国石油勘探开发研究院 17; 中海油能源发展股份有限 ... hunter hill assisted rocky mount ncWebOct 10, 2014 · It was first reported by Roffia et al. in 1988 that TS-1 had an excellent catalytic performance in the reaction of cyclohexanone ammoximation to cyclohexanone oxime with NH 3 and H 2 O 2. Although the mechanism of ammoximation is still controversial, the hydroxylamine route has been generally accepted in recent years (see … hunterhill care home addressWeb14.Application and optimization of membrane separation system in cyclohexanone ammoximation unit氨肟化装置膜分离系统的应用和优化 15.The reformation and strategies put forward for the synthetic ammonia system合成氨造气工段水系统改造效果分析 marvel bowmanWebFeb 1, 2011 · In the present study, the liquid-phase ammoximation of cyclohexanone with ammonia and hydrogen peroxide was studied using a MWW-type titanosilicate (Ti-MWW) catalyst in a continuous slurry... marvel bows