catalysts

Catalysis: Development of chirometallopor-phyrins as enantioselective oxidation catalysts of alkenes and sulfides.

催化作用: 开发新型手性金属催化烯类及硫醚类之对映选择性氧化.

Those catalysts are used in small tubular reactors.

那些催化剂用于小型管式反应器.

Many medicines are products of catalysts.

很多内服药就是催化反应的产物.

The effect of these catalysts is greater at low pressures than at high pressures.

在低压下这些催化剂的作用要比在高压下为大.

The future will see catalysts do even more to keep our environment safe and clean.

今后人们可以看到催化剂在使我们的环境安全和清洁方面会发挥更大作用.

The smectites are the most effective of the clay minerals as catalysts of these organic reactions.

对这些有机反应,蒙脱石是粘土矿物中最有效的催化剂.

The physical resistance of catalysts plays a major role in catalyst selection and reactor design parameters.

催化剂的物理强度在催化剂选择和反应器设计参数方面起着重要的作用.

The methods of regeneration and preventing deactivation of catalysts are reviewed briefly.

简要介绍了催化剂的再生和防失活等方面的技术.

Impurities that promote deterioration of polymers can be foreign materials, such as residues from polymerization catalysts.

促使聚合物劣化的杂质可能是外加的物质, 如残存的聚合用催化剂.

Hydroperoxide decomposition into radicals is accelerated by various catalysts, notable the transition metals.

氢通过氧化物分解为自由基的过程,可被各种催化剂加速, 特别是过渡金属.

The setting of mechanical specifications for catalysts should take into consideration the needs of the user.

催化剂的机械测试技术规范的制定应考虑到用户的需要.

The different contents of various alkylation products were obtained with different catalysts.

烷基化产物以4-枯基苯酚,2,4-二枯基苯酚及2,4,6-三枯基苯酚为主.

The first catalytic converters were called conventional oxidation catalysts.

最初的转化器叫做常规氧化催化器.

Many processes that are essential to the chemical industry use heterogeneous catalysts.

很多重要的化学工业过程就是使用多相催化剂的.

Catalysts that lower markedly the activation energy of the reactions are required.

需要显著降低反应活化能的催化剂.