为提高芳香族硝基化合物氢化催化剂的性能,在单铜催化剂中引入稀土元素。
Rare earths were introduced into mono-copper catalyst to improve the performance of hydrogenation catalyst for aromatic nitro-compounds.
例如,“裂解”在催化剂和加热下,将大分子的碳氢化合物破坏成小的。
For example, "cracking" involves breaking larger hydrocarbons into smaller ones with either heat or catalysts.
商业上采用的以镍作催化剂的氢化有两种。
Commercially two main types of hydrogenations are carried out with Nickel catalyst .
结果表明均相催化剂对大豆油的氢化有比镍催化剂更好的活性和选择性。
The result showed that the homogeneous catalysts had higheractivity and selectivity than that of the Nickel catalyst when hydrogenating the soybean oil.
苯基、氰基、酯基、羧基在反应中不受影响。因此,这一聚合物催化剂特别适用于和芳基、腈基、羧基和酯基相连的双键的氢化。
Thus, this polymer catalyst is especially suited to the hydrogenation of the ethylenic double bonds which are linked to aromatic, cyano, carboxyl and ester groups.
研究了从双氧水氢化废镍催化剂中以硫酸镍形式回收镍的工艺方法。
A method for recovering nickel in hydrogenate used catalyst of hydrogen peroxide in nickel sulfate form has been developed.
研究了硫氢化钠和2 -溴丙烷在催化剂作用下合成异丙硫醇的反应动力学,建立了动力学模型。
Kinetics for synthesizing isopropyl mercaptan from NaHS and 2-bromopropane in the presence of catalyst was studied; the reaction and the kinetic model of the whole process were investigated.
氢化:通常在有催化剂的情况下,氢分子(H2)与其它元素或化合物之间的化学反应。
Hydrogenation: Chemical reaction between molecular hydrogen (H2) and another element or a compound, usually in the presence of a catalyst.
综述了钌催化剂催化的主要几类有机合成反应,包括氢化、氧化、异构化、复分解。
Several kinds of ruthenium - catalyzed organic reactions were reviewed: hydrogenation, oxidation, isomerization, metathesis.
通过铜铬氧化物催化剂用于豆油的选择氢化,研究了制备方法及氢化条件对催化剂活性的影响。
The effects of catalyst preparation and hydrogenation conditions on the activity of copper-chromium oxide catalysts for selective hydrogenation of soybean oil was investigated.
本文以研究二茂铁硅烷的硅氢化反应作为重点,以期通过硅氢化反应来解决二茂铁衍生物作为燃速催化剂在固体推进剂中的迁移问题。
This thesis is focused on the hydrosilylation of ferrocenylsilanes, expecting to solve the problem of migration of ferrocene derivatives as combustion catalyst in solid propellant.
详细探讨了9908型催化剂在不同氢化温度、氢气压力以及催化剂浓度下对氢化油固体脂肪含量以及反式脂肪酸的影响。
The effects of various hydrogenated temperatures, pressures and concentrations of 9908 catalyst on the solid fat content and trans fatty acids contents of hydrogenated oils were studied.
本文介绍了糖醇生产中氢化液所含的催化剂的几种分离方法,并对几种分离方法的优缺点进行了详细比较。
The methods for separating catalyzer from hydride in the production of polyol are described. Their advantage and disadvantage are compared in detail.
如果需要补充加氢催化剂,则持续氢化直到转换完成。
The hydrogenation is continued until the conversion is complete, if required with addition of further hydrogenation catalyst.
工业生产中,山梨醇主要通过葡萄糖在镍催化剂存在及高温高压下氢化制得。它被广泛用于医药、化妆等行业。
In industrial production, sorbitol is manufactured from glucose by hydrogenation under high temperature and pressure conditions. It is used widely in pharmacy and cosmetics and the like industry.
结果表明,9908型催化剂适合油脂的选择性氢化,而9910型则适合植物油的极度氢化。
The results indicated that 9908 catalyst was a kind of fine performance selective hydrogenation catalyst, and the 9910 was suitable for extreme hydrogenation.
结果表明,温度对氢化反应的异构化影响较大,氢气压力和催化剂浓度对异构化的影响相对较小。
The research showed that temperature affected the isomerism most, then the pressure of hydrogen and the concentrations of catalyst.
研究了不同用量的钯炭催化剂对生漆催化氢化的影响。
The effects of the different amounts of Pd C catalyst on the hydrogenation of raw lacquer were investigated.
综述了近年来不对称催化氢化反应中固载催化剂的研究进展。
The research progress of supported catalysts for asymmetric catalytic hydrogenation was reviewed.
在纳米级二氧化钛载体上的铂催化剂,其在氢化硅烷化中的应用,使用该催化剂的氢化硅烷化方法以及包括该催化剂的组合物。
Platinum catalysts that are supported on nanoscale titanium dioxide, use thereof in hydrosilylation, hydrosilylation method using said catalysts and compositions comprising said catalysts.
本发明涉及用在铝酸锂载体上的钌催化剂将芳胺催化氢化为其相 应的脂环族化合物的方法。
The present invention relates to processes for the catalytic hydrogenation of aromatic amines to their acyclic counterparts using a ruthenium catalyst on a lithium aluminate support.
所述手性化合物可用作催化剂,优选可用作不对称转移氢化方法中的催化剂。
The chiral compound can be used as a catalyst, preferably in an asymmetric transfer hydrogenation process.
研究了以硼氢化钾修饰的雷尼镍催化剂催化松油醇加氢制备二氢松油醇的反应。
The hydrogenation of terpineol to dihydroterpineol catalyzed by Raney Nickel modified by potassium borohydride was studied.
因为它能吸收大量氢,常用作除氢的过滤器或氢化作用的催化剂。
Because it can absorb large amounts of hydrogen, it is used as a purification filter for hydrogen and a catalyst in hydrogenation.
制备了以超细二氧化硅为载体的氰乙基化可溶性蛋白质-钯催化剂,研究了它对三丁基锡氢化物和酰氯化合物偶联反应的催化活性。
Silica supported cyanoethylated soluble protein-Pd has been prepared and its catalytic activity in the cross-coupling reaction of tributyltin hydride and acid chlorides was studied.
制备了以超细二氧化硅为载体的氰乙基化可溶性蛋白质-钯催化剂,研究了它对三丁基锡氢化物和酰氯化合物偶联反应的催化活性。
Silica supported cyanoethylated soluble protein-Pd has been prepared and its catalytic activity in the cross-coupling reaction of tributyltin hydride and acid chlorides was studied.
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