查询词典 accelerating agent

The properties of anhydrite Ⅱ with white protland cement as accelerating agent are studied,and the durable stucco gypsum in outdoor condition are prepared successfully.

研究白水泥等作激发剂的难溶性无水石膏的性能，并制备出用于室外条件下的耐久型粉刷石膏。

The above results were interpreted by the calucation of CNDO/2 method of quantum chemistry. The effection of a collector-accelerating-agent mixed with a just main-collector was better than that of two collectors mixed. The structure of collector-accelerating-agent is described:① a carbonic chain or ring compound with a polar-radical,② a larger positive electric centre in this polar-radical〓 was the compound with many coordination atomics.

量子化学CNDO/2方法计算验证了上述结果，并且得到如下结论：选择有效的捕收促进剂与适当捕收剂混用，比用两种捕收剂混用更有效；并总结出捕收促进剂的结构特点为：①带一个极性基团，有足够疏水性的碳链、环化合物；②极性基因中有一个较大的正电荷中心；③极性基因中最好有多个能参与配位的极性原子。

The invention uses benzene carbonic acid as raw material, uses hydrogen gas as reducing agent, and uses ZnO and CeO2 as main accelerating agent. In solid-bed reactor the invention carries out hydrogenation reduction reaction. The reaction temperature is 340-440Deg.C, gas hourly space velocity is 600-4800h-1, hydracid mole rate is 20:1-160:1, the selectivity ratio of benzaldehyde is 99%, and the productivity is above 95%.

该方法以苯甲酸为反应原料，以氢气为还原剂，以ZnO和CeO 2 的复合氧化物为主催化剂，在固定床反应器中，进行气相加氢还原反应，反应温度为340℃～440℃，气时空速为600h -1 ～4800h -1 ，氢酸摩尔比为20∶1～160∶1，采用本发明制备苯甲醛的选择性可达99％，收率可达95％以上。

The invention uses benzene carbonic acid as raw material, uses hydrogen gas as reducing agent, and uses ZrO2, TiO2 and Y2O3 as main accelerating agent. In solid-bed reactor the invention carries out hydrogenation reduction reaction. The reaction temperature is 340-450Deg.C, gas hourly space velocity is 600-4800h-1, hydracid mole rate is 20:1-160:1, the selectivity ratio of benzaldehyde is 96%, and the productivity is above 90%.

该方法以苯甲酸为反应原料，以氢气为还原剂，以复合氧化物ZrO 2 、TiO 2 和Y 2 O 3 为主催化剂，在固定床反应器中，进行气相加氢还原反应，反应温度为340℃～450℃，气时空速为600h -1 ～4800h -1 ，氢酸摩尔比为20∶1～160∶1，采用本发明制备苯甲醛的选择性可达96％以上，收率可达90％。

Vitriol mountain town alumstone exploits cost low , entire exploit be a strip mining, the ore may ascertain whose use , potasium sulphate , may produce alums , inferior may produce a swelling agent , early strong medium agent , accelerating agent first-class but giving birth to a child according to the grade.

矾山镇的明矾石开采成本低，整个开采是露天采矿，矿石可根据品位确定其用途，上等可生产硫酸钾、中等可生产明矾、下等可生产膨胀剂、早强剂、速凝剂。

Cyclohexylamine is mainly to be made sodium cyclamate, CBS accelerating agent, cyclohexanol, cyclohexanone, caprolactam, acetate fiber and nylon.

环己胺主要用于合成食品甜味剂环己基氨基磺酸钠和橡胶促进剂N-环己基-2-苯并噻唑次磺酰胺。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了