醚的

Ii is a process with low investment and great profit to use the C5 etherealization product as the blending component of gasoline with high octane number. The C5 fraction is cut from steam cracking and it's diolefins are saturated by selective hydrogenation.

裂解C5馏分选择性加氢饱和二烯烃后，醚化产物作为高辛烷值汽油调合组分是一条投资少、见效快的工艺路线。

Finally, the developing trend of etherification catalysts is emphasized.

最后指出了醚化催化剂的发展趋势。

Moreover, their activity and selectivity in etherification reaction is simultaneously estimated and compared.

此外，对这几种催化剂的醚化活性、选择性进行了评价。

The effect of processing conditions on the etherification was studied.

并研究了工艺参数对醚化反应的影响，同时确定其最佳反应条件为：反应温度60～65℃，反应空速2.5～3.0h－1，醇烯比为（14～15）g／100g。

These results indicated that the presented method could be applied efficiently to the solution-phase combinatorial chemistry based on Williamson etherification.

结果表明该方法可高效率地用于基于Williamson醚化反应的液相组合化学合成。

Zeolite shows high catalytic activity for hydration etherification of propene, but its stability needs to be improved.

采用该方法改性的催化剂，对丙烯水合醚化反应连续运转 72 0h ，丙烯转化率由 5 6 6 %仅降为 5 2 %，表明催化剂稳定性得到明显改

The catalysts of supported 〓and 〓 were firstly used inthe etherification of FCC light gasoline.

将负载型磷钨酸和磷钨酸盐催化剂应用于催化裂化轻汽油的醚化反应。

But now, there not are the reports on the use of 〓and its salts in the etherification of FCC light gasoline.

但目前尚无磷钨酸及其盐用于催化裂化轻汽油醚化反应的报道。

First production of 10,000 tons annual capacity reagent resin, 5,000 tons of activated reagent, cationic etherification agents and oil additives several major series, a number of brand products.

先生产年产10000吨树脂显色剂、5000吨活性白土显色剂、阳离子醚化剂和油品添加剂几大系列、多个品牌的产品。

Synthesis technology and property of hydroxypropyl starch by using potato starch as raw material, propylene oxide as etherization reagent and sodium hydroxide as catalyst, were studied in this paper.

本文以马铃薯淀粉为原料，环氧丙烷为醚化剂，氢氧化钠为催化剂对低取代度羟丙基淀粉的制备工艺进行了研究。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。