The amount of isopentane and water, the kinds of polyethers and catalysts were selected.
对异戊烷及水的用量、聚醚多元醇及催化剂的品种进行了选择试验。
The influences of amount of catalysts, microwave power, microwave irradiation time and the mole ratio of alcohol to acid were studied.
考察了催化剂的用量、微波功率、微波辐射时间、醇酸比对酯产率的影响。
The effects of reflux time, temperature, amount of adsorbent on the efficiency of removal of Cl - and the microwave digestion conditions, acid medium, catalysts on the COD determination are discussed.
研究了回流除氯时间、温度、吸附剂用量对去氯率的影响，以及微波消解条件、酸介质、催化剂对COD测定的影响。
Detailed studies are made on the effect of the microwave power, time of microwave radiation, the amount and varieties of catalysts, and the matching of reactant on the yield ratio of reaction product.
研究了微波功率、辐射时间、催化剂种类和用量、反应物配比对反应产物收率的影响。
The amount of catalysts and other factors in condensation were investigated. The conditions on dehydration and hydrogenation were also investigated.
研究了催化剂用量等因素对缩合的影响，考察了脱水、催化加氢的条件。
The catalytic activity and selectivity were little influenced by the loading amount in the cases of the coprecipitated catalysts.
但在共沉淀的反应中催化活性和选择性很少被反应量影响。
The influences of catalysts, amount of catalyst , catalyst recovered on syntheis were investigated by orthogonal design.
并研究了催化剂种类、用量、 重复使用次数对收率的影响及催化剂种类对反应温度的影响。
But traditional Friedel-Crafts reaction has its own limitations, such as requirement of a stoichiometric amount of Lewis acid catalysts and large amounts of undesired products.
传统的傅克反应的局限性在于，需要等量的路易斯酸催化剂和产生大量的副产物。
Trace amount of arsenic in petroleum products is poisonous to some catalysts containing noble metals. Therefore, a cheap and fast method for arsenic determination is searched.
石油产品中痕量砷的存在可使某些贵金属催化剂中毒，为此研究出了一种简单、快速的测砷方法。
The BET surface area of the catalysts and the amount of oxalate in the preparation process did not show significant influence on the activity.
草酸络合剂与偏钒酸铵的比例对催化剂的性能影响不大，所制备的催化剂在氯苯催化燃烧中具有良好的稳定性。
The effects of the three different catalysts, catalyst amount, reaction time on the conversion of acrylic acid were researched. The reaction mechanism was discussed.
比较了三种催化剂及其用量、反应时间对丙烯酸转化率的影响，提出了可能的反应机理。
The type and amount of finishing a- gents and catalysts were selected and researched. Furthermore the effect of non- formaldehyde finishing on dyeability of cotton fabric was studied.
并对柠檬酸整理剂、次亚磷酸钠等各类催化剂的用量进行了优选，还分析了非醛整理剂对织物染色性能的影响。
The type and amount of finishing a- gents and catalysts were selected and researched. Furthermore the effect of non- formaldehyde finishing on dyeability of cotton fabric was studied.
并对柠檬酸整理剂、次亚磷酸钠等各类催化剂的用量进行了优选，还分析了非醛整理剂对织物染色性能的影响。
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