查询词典 catalyst

The byproducts using a HZSM-5 supported multi-metal catalyst are polymer of MXDA condensation detected by MS, which is different from the byproducts using the carbon supported metal catalyst.

反应副产物用MS定性分析表明：分子筛负载的多金属加氢催化剂与活性炭负载的多金属催化剂不同。分子筛负载的多金属加氢催化剂产生的副反应主要为MXDA的分子间脱氨缩合反应。

With the ceaselessly improvement of catalyst properties, the production process of catalyst became more and more intricacy that requires even more strict process controlment on production process and even higher quality management on process.

聚丙烯高效催化剂是丙烯聚合工业的技术核心，催化剂产品质量直接影响着聚丙烯产品的质量及新产品的开发。

Ltd. The results show that in contrast to phosphoric acid catalyst, the production of cumene on zeolite catalyst exhibits low operating cost, high product yields, high product purity and little corrosion.

结果表明，采用沸石分子筛催化剂生产异丙苯，与固体磷酸催化剂相比，具有收率高、产品质量好、操作费用低、无腐蚀等优点。

Under the microwave radiation, makes the catalyst with the potassium iodide,The sodium hydroxide makes the neutralization agent, synthesized the phenmethyl -2- naphthyl ether, take 2- naphthol and the chlorination animal pen as the raw material, Uses the single factor cut-and-try method, To a reactant mole of ratio, the catalyst and the solvent amount used, the microwave power, the radiation time and so on have conducted the research to the product receiving rate influence.

在微波辐射下，以2-萘酚和氯化苄为原料，用氢氧化钠作碱剂，碘化钾作催化剂，水-DMF为溶剂合成了苄基-2-萘基醚；采用单因素实验法，对反应物的摩尔比、催化剂及溶剂用量、微波功率、辐射时间等因素的影响进行了研究。

The influence of reaction time,dosage of catalyst and molar ratio of cyclohexanol/acid were investigated in the presence of copper sulfate used as catalyst.

在较优催化剂CuSO4.5H2O催化下，考察了反应时间、催化剂用量、醇酸比等因素对酯化率的影响。

Commonly used in gas adsorption, separation and purification, solvent recovery, sugar, oil, glycerine, decolorant drugs, drinking water and refrigerator deodorizer,滤毒agents in gas masks, or metal salts can also be used as a catalyst catalyst carrier.

常用于气体的吸附、分离和提纯，溶剂的回收，糖液、油脂、甘油、药物的脱色剂，饮用水及冰箱的除臭剂，防毒面具中的滤毒剂，还可用作催化剂或金属盐催化剂的载体。

To improve dehydrogenate catalyst activity and the overall yield,enhancing reaction selectivity and stability of the catalyst is the sticking point of industrial application in cyclohexanone dehydrogenate condensation process.

文章分析了国内外生产情况，介绍了国内主要生产装置，详述了邻苯基苯酚广泛的市场用途，提出了我国要发展邻苯基苯酚工业，开发选择性高、活性时间长的催化剂是发展方向。

Experiments on purification technologies for the conversion of cornstalk biomass into the industrial product were made to produce cornstalk gas in the down-flow fixed by the gasifier. The experiment focused on the technical procedures for deoxygenation. catalytic cracking of tar, hydrogenation, etc. Quality straw syngas was produced for methanol synthesis. The catalysis of methanol synthesis for the production of cornstalk syngas was earned out in a tubular-flow integral and isothermal reactor under the pressure of 5MPa over Cu-based catalyst C301 (particle size: 0.833mm×0.351mm), a catalyst made in China. Thirty-three sets of test data were obtained.

为了实现秸秆类生物质合成燃料甲醇的工业转化，有效利用生物质能，对下吸式固定床气化炉产生的低热值玉米秸秆燃气进行除氧、分解焦油和配氢等纯化试验，制备出合成甲醇的优质秸秆合成气，在直流流动等温积分反应器中，使用国产C301铜基催化剂，催化剂粒度为20~40目(0.833mm×0.351mm)，在5MPa反应压力下，对玉米秸秆合成气进行催化合成甲醇试验研究，获得33套试验数据。

The calculation results of catalyst efficient factor showed that the catalyst inner diffusibility had great effect on the partial oxidation and steam reforming of gasoline, which was serious with the increasing reaction temperature.

催化剂效率因子的计算结果表明内扩散对汽油氧化重整制氢反应过程影响较大，且内扩散影响随着反应温度的增加而增加。

In the study of by-product dioxane in polymerization reaction of EO,it is found that the effect of solvent is very small.And so do the catalyst BF_3-H_2O complex and catalyst H~+.

计算结果也解释了BF_3-H_2O催化环氧乙烷聚合产物分子量达到某一极限值后不再增加，消耗的单体都生成了二氧六环的原因。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。