一种催化双氧水氧化烯烃环氧化连续反应流程,该方法利用水与反应液中组分(溶剂)共沸,除去体系中大部分水分(双氧水中的水),形成一个无水过氧化氢溶剂体系,加入烯烃和相转移催化剂,在一定温度下进行环氧化反应,反应后冷却,通过卧螺离心机和蝶式分离机两次分离回收催化剂,催化剂可循环使用。分离得液相进一步精馏分离得产品 ...
李军 +4 more
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负载巯基金纳米簇在CO氧化反应中表现出明显的载体效应,其中CeO2负载Au25(SR)18纳米簇表现出较高催化活性。Au25(SR)18/CeO2催化剂在O2气氛下150 oC预处理可显著提高其催化活性。由于该预处理温度明显低于Au25(SR)18纳米簇的巯基起始脱附温度(~200 oC),因此预处理及CO氧化反应过程中巯基配体保留在Au25簇表面,这表明未脱除巯基的负载Au25(SR)18纳米簇催化了CO氧化反应。原料气中添加水汽可显著提高反应的CO转化率,Au25(SR)18 ...
聂晓涛
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双环戊二烯环氧化制备分离二氧化双环戊二烯的方法,双环戊二烯在反应控制相转移磷钨杂多酸盐催化剂及助剂EDTA存在下,碳酸二甲酯为溶剂,以双氧水为氧化剂反应直接生成二氧化双环戊二烯;反应结束所得反应液冷却后,反应液中的固体催化剂回收后循环使用,有机相经过活性炭过滤后减压脱除溶剂即得二氧化双环戊二烯,本发明工艺简化,工艺流程短,可有效地降低生产成本,能耗低,对环境友好 ...
吕迎, 高爽, 张恒耘, 杨华
core
[Research progress on the pathological mechanisms and clinical translation of ferroptosis in necrotizing enterocolitis]. [PDF]
Luo J, Li WB.
europepmc +1 more source
[Preparation strategies of magnetite/metal-organic framework composites and their application progress in sample pretreatment]. [PDF]
Li YX, Lu MH.
europepmc +1 more source
[Evolution of DFU treatment strategies: from simple coverage with traditional dressings to active modulation with smart materials]. [PDF]
Chen XL.
europepmc +1 more source
[Recent advances on environmental occurrence, risk and analytical methodologies of synthetic phenolic antioxidants]. [PDF]
Liu SS +6 more
europepmc +1 more source
[Duchenne muscular dystrophy-associated cardiomyopathy: advances in diagnosis and management]. [PDF]
Gu J, Liu YH, Hong SQ.
europepmc +1 more source
[Research progress on porous framework material-based immobilized enzyme biosensors for pesticide residue analysis]. [PDF]
Lan ZY +7 more
europepmc +1 more source
[From driver gene mutations to cell death crosstalk: Ferroptosis regulatory networks and prospects for targeted cancer therapy]. [PDF]
Li Y, Tao Y.
europepmc +1 more source

