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Results showed that using aluminum trichloride combined catalyst under the conditions of a catalyst dosage of 5%, a benzene/olefin molar ratio of 8, a reaction temperature of 60℃ and a reaction time of 6 h, the yield of alky-benzene reached 19.6% and the quality of the obtained alkylate was significantly improved as compared with coker gas oil.

结果表明，采用三氯化铝复合催化剂，在催化剂质量分数为5%、反应温度60℃、苯烯摩尔比为8、反应时间6 h的条件下，烷基苯收率达到19.6％，烷基化油的质量明显优于焦化柴油。

Poly was synthesized with calcium ammine as catalyst system and hexane as solvent,and the relationship among catalyst amounts,polymerization temperature,polymerization time and moisture of solvent with the yield of PEO and its relative molecular mass were investingated.

阐述了采用氨钙体系催化剂、以正己烷为溶剂的沉淀聚合制备聚氧化乙烯的方法。研究了催化剂用量、反应温度、反应时间及溶剂含水量与PEO收率及其相对分子质量的关系。

Anisaldehyde was synthesized from p-hydroxybenzaldehyde with dimethyl carbonate by microwave irradiation under phase transfer catalyst tetrabutylammonium bromide, The effect of power, time, solvent and catalyst of reaction on yield were researched.

以四丁基溴化铵为相转移催化剂，采用对羟基苯甲醛和碳酸二甲酯为原料，微波辐射下合成大茴香醛。考察了反应溶剂、功率、时间和催化剂对反应产率的影响。

However, the apparent frequency factor of curing increases with the increase of the catalyst , being one order of magnitude higher with 0.6 % catalyst than without.

在空气中增高温度时其侧基破坏分为二个阶段，即甲基比苯基先破坏。当引入聚铝苯基硅氧烷作为硅树脂固化催化剂，可提高其甲基的起始分解温度，同时降低苯基的起始分解温度。

The results show that the castor oil with barium hydroxide as catalyst in the transesterification reaction in the appropriate conditions: methanol to oil molar ratio of 6:1, 10:1, catalyst amount, reaction time 90 min

结果表明，蓖麻油在以氢氧化钡为催化剂的酯交换反应中适宜条件为：醇油摩尔比6：1，催化剂量10：1，反应时间90 min 不要翻译软件的！追加50！

The results show that the appropriate conditions of castor oil with barium hydroxide as catalyst in transesterification reaction are: the molar ratio of methanol to oil is 6:1, castor oil to catalyst is 10:1, reaction time 90 min, the yield is 98.20%, the castor oil conversion rate is 75.13%.

结果表明，蓖麻油在以氢氧化钡为催化剂的酯交换反应中适宜条件为：醇油摩尔比6：1，蓖麻油与催化剂摩尔比10：1，反应时间90 min，生物柴油收率98.20%，蓖麻油转化率为75.13%。

The comonomer in the copolymer by cat247 is trend to isolated. A few amount of comonomer could make the melting point remarkably decreased and maintain the crystalline at a relative high level. This catalyst can be use to produce the material with low melting point and high intensity such as packing film with low hotsealing temperature. The copolymer by cat24 is characteristic of uniform comonomer distribution and low melting temperature and crystallinity. Therefore, this catalyst could be used to produce LLDPE and POE according the comonomer content; cat246 has a strong copolymerization ability, and the resultant polymer has relatively high blockiness. If this trend is strengthened by adjustment of polymerization condition, the polymer can be used as thermal plastic elastomer with random and crystalline blocks.

由于各个催化剂所产生的聚合物各具特点，所以其潜在的工业用途不同。cat247的产物中共单体趋于孤立分布，极少的共单体即可使熔点明显降低而结晶度仍保持较高水平，有利于制备低熔点、高强度的材料（如低热封温度的包装膜等）。cat24的催化聚合产物无规程度比较高，对降低熔点和结晶度都十分有效，通过控制产物中共单体含量的多少，可以生产LLDPE和POE；cat246共聚合能力强，且产物有嵌段倾向，通过调整聚合条件强化这一倾向后，可以用来生产具有无规-结晶嵌段结构的热塑性弹性体。

The quantity of catalyst was equal to 0.6% of feedstocks,the reaction temperature was 78～110 ℃,and the reaction time was 45 min. The test results have shown that H_4SiW_(12-O_(40)/MCM-48 is an excellent catalyst for synthesizing butanone 1,2-propanediol ketal with its yield reaching over 91.9%.

实验表明：H4SiW12O40/MCM-48是合成丁酮-1，2-丙二醇缩酮的良好催化剂，在n∶n(1，2-丙二醇)=1∶1.6，催化剂用量为反应物料总质量的0.6%，环己烷为带水剂，反应时间45 min的优化条件下，丁酮-1，2-丙二醇缩酮的收率可达91.9%。

Compared to the catalyst withγ-Al2O3 ball as support, performance of the catalyst prepared by Si-Al ball impregnated active component was better for mixed butene oligomerization.

与以γ-Al2O3球为载体的催化剂相比，用硅铝小球浸渍活性组分制得的催化剂催化混合丁烯齐聚的性能较好。

The effects of degree of carbon deposition and regeneration,catalyst impurities,iso butylene impurity in feed stock as well as operational parameters on carbon deposition of W 201 catalyst for oxydehydrogenation of butene to butadiene have been studied.

从工业应用出发，研究了丁烯氧化脱氢制丁二烯W－201催化剂的结炭数量及再生、催化剂杂质元素分析、原料中异丁烯杂质及操作参数对催化剂结炭的影响等。

If you were not , and OS X just booted normally, have no fear.

如果你没有，和OS X刚刚启动通常，没有恐惧。

I only want to preserve our all .

我只想保存好我们的一切