乙烯酮

乙烯酮分子在218nm光解的主要通道是产生CH2（（？）

(ⅱ) It was found that the major photodissociation pathway of ketene at 218 nm is the CH_2 ((?)

用离子速度成像方法研究了乙烯酮分子在218nm光解下的光解动力学，得到了光解产物CO的共振多光子电离谱，以及在不同振转态的角分布和平动能分布。

Photodissociation dynamics of ketene at 218 nm has been investigated using the velocity map ion-imaging method . Both angular and translational energy distributions for the CO products at different rotational and vibrational states have been obtained .

基于α-肉桂酰环乙烯酮二硫缩酮的一类新型D-A有机发光材料的理论

Theoretical Investigation on Novel Donor-acceptor Materials with Organic Light-emitting Diodes Based on α - Cinnamoyl Cyclic Ketene Dithioacetals

作为生产乙酰丙酮重要的中间产物醋酸异丙烯酯（IPA），是由丙酮在强酸性催化剂作用下与乙烯酮发生吸收反应而得。

Isopropenyl acetate , an intermediate product of acetylacetone , was synthesized by acetone and ketene in the condition of the existence of strong acid catalyst .

α－氧代烯酮环二硫代缩酮化学（XXXI）&α－肉桂酰基乙烯酮缩1，3－丙二硫醇与Grignard试剂的共轭加成反应

The Chemistry of α - Oxo Ketene Cyclic Dithioacetals ( XXXI ) ── Studies on the conjugated addition of α - Cinnamoyl Ketene - 1 , 3-Propylene-dithioacetal with Grignard Reagents

这种观测到的各向异性的转动相关，我们认为是由乙烯酮分子的1~B1激发态与1~A2激发态之间沿着CS-I对称性坐标的特殊的锥形交叉引起的。

The observed rotational dependence of angular anisotropy is interpreted as the dynamical influence of a peculiar conical intersection between the 1 ~ B_1 excited state and 1 ~ A_2 excited state along the CS-I coordinate .

乙烯酮光解途径的从头算研究

Ab Initio Study on the Paths of Photodissociation of Ketene

乙烯酮工艺过程的转化率和效率的计算

Ketene process conversion and efficiency calculations

乙酰丙酮作为重要有机化工中间体，工业生产多采用乙烯酮法。

As an important organic chemical intermediate , Acetyl acetone is generally prepared by ketene method .

乙酰丙酮作为一种应用较为广泛的有机物，其制备的工艺多采用乙烯酮吸收和热转化的途径。

As a wildly used organism , acetylacetone was prepared mainly by the absorption of ketene and thermal transition .

阐述了乙酸酐和乙烯酮作为酰化剂对芳樟醇合成乙酸芳樟酯反应的影响；

The effects of acylating agents , acetic anhydride and ketene on synthesis of linalyl acetate from linalool were studied .

烷基乙烯酮二聚物（纤维素反应型的耐久防水柔软剂）这些树脂能够在纤维素非晶区与纤维素发生反应产生交键。

Alkyl ketene dimmer These resins react with the cellulose to form crosslinks in the less crystalline areas of the cellulose .

以乙烯酮和丙酮为原料，用强酸性离子交换树脂代替浓硫酸作为催化剂，直接酯化合成乙酰丙酮的中间体乙酸异丙烯酯。

Isopropenyl acetate was synthesized from ketene and acetone by direct esterification using strong acidic cation-exchange resin to substitute H2SO4 as catalyst .

醋酸裂解制乙烯酮工业过程数学模拟辽化乙烯装置GK-Ⅲ型裂解炉改造

Mathematic Modeling of Industrial Process of Producing Ketene by Cracking Acetic Acid ; REVAMP OF GK - ⅲ CRACKING FURNACE IN ETHYLENE PLANT AT LIAOYANG PETROCHEMICAL COMPANY FOR ETHANE CRACKING

针对乙烯酮（双乙烯酮）下游产品废水特点，该厂结合企业实际，开展了产品优化，结构调整，清洁生产，资源循环利用，节水降耗等工作，从源头削减了污染物的生产。

Due to the character of waste water , the plant reduces the waste through optimizing products , adjusting structure , cleaning production , circulating the raw material and saving the water and cost .

用160克芳樟醇和等摩尔量的乙烯酮在0.8克对甲苯磺酸催化下合成出乙酸芳樟酯，产率82%，纯度为97-98%。

The title compound has been prepared by treatment of 160 g linalool with equivalent mole ketene in the presence of 0.8g p-toluene sulfonic acid at 25 ℃, yield 82 % . The purity is 97-98 % .

计算结果表明：在最优控制下操作，出口裂化气体中乙烯酮百分含量提高2%，单程产率增加3%。

The calculating results indicate that if operation is in optimum control , the percentage concentration of ketene in cracking gas at the end of pipe will be a 2 % increase , and single Yield a 3 % increase .

以Ni/（SiO2-MgO）为催化剂甲基乙烯基酮气相加氢动力学研究

A Kinetic Study of Vapor Phase Hydrogenation of Methyl Vinyl Ketone in the Presence of Ni / ( SiO_2-MgO ) Catalyst

研究了在超临界二氧化碳中对甲基乙烯基酮的Wacker反应。发现在适量甲醇存在时，其超临界反应产物是Michael加成产物和缩醛。

Aerobic oxidation of methyl vinyl ketone was performed in supercritical carbon dioxide with some methanol in presence . It was found that the products are mixture of Michael-adduct and acetal .

甲基丙烯基醛和甲基乙烯基酮水相臭氧化反应

Ozonolysis of Methacrolein and Methyl Vinyl Ketone in Aqueous Solutions

碱性阴离子交换树脂催化合成甲基乙烯基酮

Catalytic Synthesis of Methyl Vinyl Ketone with Base Anion-exchanged Resins

甲醛丙酮催化缩合合成甲基乙烯基酮

A Study on Synthesis of Methyl Vinyl Ketone via Condensation of Formaldehyde with Acetone

丙酮亚甲基合成甲基乙烯基酮铜基催化剂的研究

Studies on Copper-based Catalysts for the Synthesis of Methyl Vinyl Ketone by the Methylenation of Acetone

以硅胶为催化剂，丙酮和甲醛可经常压缩合反应合成甲基乙烯基酮。

Atmospheric vapor phase catalytic condensation of formaldehyde with acetone for manufacture of methyl vinyl ketone has been studied .

β-氯代乙烯基酮与肼类缩合合成3-取代和1,3-二取代吡唑的研究

Studies on the synthesis of 3-substituted and 1 , 3-disubstituted pyrazoles through condensation of β - chlorovinyl ketones with hydrazines

聚酰亚胺／聚N－乙烯吡咯烷酮分子复合物的合成和表征

Synthesis and characterization of molecular composites of polyimide / polyvinylpyrrolidone

2,2-二（甲硫基）乙烯基苯基酮~1HNMR溶剂效应的研究

A study of the solvent effect of 2,2-di ( methylthio ) vinyl phenyl ketone by ~ 1h NMR

负载型Ni2P的制备、表征及其加氢性能研究聚丙烯腈钯络合物和聚2-N-乙烯吡咯烷酮钯络合物的催化氢化性能

Preparation , Characterization of Supported Ni_2P Catalysts and Their Catalytic Hydrogenation Activity CATALYTIC HYDROGENATION ACTIVITY OF NITROGEN CONTAINING POLYDIVINYLBENZENE-ANCHORED PALLADIUM COMPLEXES

方法采用L9（34）正交试验法，以崩解时限为指标，以微晶纤维素、低取代羟丙基纤维素、交联乙烯吡咯烷酮、甘露醇等为辅料，筛选最佳处方和制备工艺。

Methods The L9 ( 34 ) orthogonal was designed with disintegrating time as the assessment index , and MCC , LHPC , PVPP , Mannitol et al were used in the formulation and preparation .

然后采用表面引发自由基聚合法，以甲基丙烯酸和N-乙烯吡咯烷酮为聚合单体制备了核-壳结构的Fe3O4/P（MAA-co-NVP）交联磁性复合微球。

Fe3O4 / P ( MAA-co-NVP ) cross-linked magnetic composite microspheres with core-shell structure were prepared by a surface-initiated radical dispersion polymerization route of of methyl methacrylate and N-vinyl pyrrolidone monomer .