查询词典 catalyst

Bismuth phosphomolybdate is a catalyst in the production of acrylonitrile, an important raw material for fibres and plastics.

磷钼酸铋是一种催化剂，用于丙烯的生产过程，丙烯是生产纤维和塑料的重要原料。

The catalyst is presently produced by in facilities near the acrylonitrile plant.

该催化剂目前由靠近丙烯腈工厂的设备中生产。

The catalyst of the present invention is especially suitable for use in the conditions of low reaction temperature, high reaction pressure and high propylene load, may result in high yield of acrylonitrile, and may be used in industrial production.

本发明催化剂特别适用于在较低反应温度、较高的反应压力和高丙烯负荷条件下使用，且可保持高的丙烯腈单收，可用于工业生产中。

Results showed that the Pd/C catalyst prepard from activated carbon treated with complex oxidants (10% H2O2 and 1% oxidant G) can increase the utilization rate of palladium up to 96.4% and dehydroabietic acid up to 68.4%.

结果表明：用10% H2O2和1%强氧化物G的复合氧化剂对椰壳活性炭（粒径150~250μm）进行预处理，制得的Pd/C催化剂，可以使把利用率达到96.4%，去氢枞酸高达68.4%。

The activation energy of pyrolysis reaction decreases with the increase of catalyst polypropylene ratio from 0 to 30%.

当剂塑比从0增加到30％时，聚丙烯裂解的活化能呈现降低的趋势，特别当剂塑比为30％时，其活化能降低约50％。

And nearly 50 percent reduction of activation energy ,has obtained with the catalyst polypropylene ratio of 30%.

说明粉煤灰和电石渣对聚丙烯裂解具有一定的催化效果。

Sulfur recycle catalyst activeness decline reason and its preventive measures are analyzed.

分析了硫磺回收催化剂活性衰退的原因及防止措施。

This process was affected by many factors such as different conditions of pressure, heating rate, reaction time and addition of catalyst.

停留时间5min的条件下，对稻草在加入不同催化剂条件下的反应进行实验研究。

The optimal conditions were found as follows: reaction temperature 90℃, reaction time 50 min, the molar ratio of catalyst to diethyl adipate 1.1:1, providing 99.5% yield.

结果表明，各试验因素的影响效能为反应温度（反应时间（催化剂用量；最佳合成条件为反应温度90℃，反应时间50 min，催化剂与原料的摩尔比为1.1：1，在此条件下，常压合成目标物的产率可以达到99.5%。

Cyclohexane with Mn as a catalyst in Trial 3 gave a total conversion of cyclohexane of 73% and 28.8% of which were oxygenates which contained 15.2% of dimethyl succinate, 19.6% of dimethyl glutarate and 65.2% of dimethyl adipate.

环己烷锰作为催化剂在审判3了总转化环己烷的73 ％和28.8 ％，其中含氧化合物其中载有15.2 ％的二甲基丁二酸， 19.6 ％的二甲基戊二和65.2 ％的二己二酸。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。