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- ratio of catalyst components 组分比例
- By IR spectrum, Tyndall effect, electric conductivity, UV Vis and ESR spectra were studied the reaction mechanism of catalyst components. 已知在加氢汽油介质中Ni（naph）2－Al（i－Bu）3－（BF3·OEt2＋n－C8H17OH）体系为胶体催化剂。 本工作应用FT－IR谱结合Tyndal效应、电导率、UV－Vis、ESR谱对催化剂各组分的相互作用进行研究。
- The method of preparation of catalyst, compound ratio of activator and catalysis of charcoal active were studied. 对催化剂的制备方法、活性组分的配比和以活性炭为载体的催化性能进行了考察。
- The factors such as mole ratio of substrate,amount of catalyst and reaction time have been discussed. 着重探讨了反应物配比、催化剂用量、反应时间等条件对缩合反应的影响。
- The affects of catalyst amount, molar ratio of phenylethyl alcohol and iso-valeric acid, reaction time and dehydrating agent amount were studied. 研究了催化剂用量、载体二甲苯用量、醇酸比例以及反应时间对反应结果的影响。
- Effects of catalyst,final treatment at high temperature,dosage of crosslinking agent and mass ratio of PU to P(MMA-BMA) on damping property of the polymer were investigated. 探讨了加入催化剂、高温后处理、交联剂用量及PU与P(MMA-BMA)的质量比对PU/P(MMA-BMA)IPN聚合物阻尼性能的影响。
- The effects of catalyst dosage, the ratio of benzene to olefin, reaction temperature and reaction time on the yield of alky-benzene and the quality of alkylate were investigated. 考察了催化剂用量、反应温度、反应时间、苯烯比对烷基苯收率和烷基化油质量的影响。
- The influence factors such as molar ratio of isobutyl alcohol to butyric acid, amount of catalyst, and reaction time on the yield of isobutyl butyrate were discussed. 以钨硅酸为催化剂,通过丁酸和异丁醇反应合成了丁酸异丁酯,探讨醇酸物质的量比、催化剂用量及反应时间对酯化率的影响。
- The effects of catalyst, reaction temperature, operation parameters and the weight ratio of acrylic acid to epoxy resin on the properties of EA resin were investigated. 摘要以环氧树脂和丙烯酸为原料，研究了投料比、反应温度、催化剂、操作方法等因素对合成EA（环氧丙烯酸）树脂性能的影响。
- The influence factors such as molar ratio of hexyl alcohol to propionic acid,amount of catalyst, and reaction time on the yield of hexyl propionate were discussed. 以钨硅酸为催化剂,通过丙酸和己醇反应合成了丙酸己酯,探讨了醇酸物质的量比、催化剂用量及反应时间对酯化率的影响。
- The influence such as molar ratio of salicylic acid to isobutyl alcohol,amount of catalyst,and reaction time on the yield of isobutyl salicylate were discussed. 以对甲苯磺酸为催化剂,通过水杨酸和异丁醇酯化反应合成了水杨酸异丁酯。
- The influence of mole ratio of NCO/OH,reaction temperature,reaction time,and the amount of catalyst on the property of waterborne polyurethane emulsion was discussed. 讨论了NCO/OH(摩尔比)、反应温度、反应时间、催化剂用量等对水性聚氨酯乳液性能的影响。
- The influence factors such as molar ratio of isobutyl alcohol to propionic acid, amount of catalyst, and reaction time on the yield of isobutyl propionate were discussed. 以对甲苯磺酸作催化剂,通过丙酸和异丁醇反应合成了丙酸异丁酯。
- Influene of ratio of main actived components in V-Sb supporer catalysts,effect of promoter as well as effect of preparation method of catalyst on yieled of acrylonitrile were studied by experiments. 通过实验研究了以钒-锑为基础的负载型催化剂的主要活性组分的配比、助催化剂的效应以及催化剂的制备方法对丙烯腈收率的影响,为制备催化剂提供了依据。
- The ratio of students to teachers is 35:1. 学生和老师的比率是三十五比一。
- The ratio of schoolboys to schoolgirls is 2 to 1. 男学生和女学生的比例是2比1。
- Men outnumber women here in the ratio of three to one. 此地男子数量以三比一超过女子。
- The best reacting conditions ars:the ratio of Acetic and Ethanol is 4:1(mol/mol),thedose of catalyst is 0.8g,the power of microwave is 336W,the power of microwave is 8 minute, the rate of transformlng may reach 91.5%. 最佳反应条件为 :乙酸和乙醇的摩尔比为 4 :1(mol/mol) ,催化剂 0 8g ,微波功率 336W ,微波辐射时间 8min ,转化率 91 5%25
- We also consider the effect of the load of Cu on catalyst activity, and get when the ratio of Cu/Ni is 31.59%, the catalyst is the most active, and determine the dynamic parameters of catalyst. 考察了铜负载量对催化剂活性的影响，当Cu/Ni为31.;59%25时，催化剂的活性最大，并且测定了催化剂的动力学参数。
- Compared with the traditional method adjusting iron ratio of catalyst of synthetic ammonia with iron bar, this paper presents method of iron ratio adjustment with reduced type iron powder. 与传统以铁条调整氨合成催化剂铁比的方法不同;本文所提是以还原铁粉调整铁比.
