戊烯

The present invention belongs to the field of chemical technology, and is a kind of supported tungstic acid catalyst for multiphase catalytic oxidation and synthesis of glutar aldehyde from cyclopentene.

本发明属于化工技术领域，是一种新型的环戊烯多相催化氧化合成戊二醛的负载型钨酸催化剂。

The method of one-step cyclopentene oxidation with hydrogen peroxide as oxidizer is the trend of research and development of glutaraldehyde in the future because its raw materials are cheap and easy obtainable.

指出吡喃法是目前国内外合成戊二醛普遍采用的方法，以过氧化氢为氧化剂的环戊烯一步氧化法具有原料价廉易得等特点，是今后研究开发的方向。

Glutaraldehyde was prepared by oxidation of cyclopentene with aqueous solution of hydrogen peroxide.

用过氧化氢水溶液氧化环戊烯制得戊二醛。

Under the optimized reaction conditions: n (H2O2)/n/n=2/0.04/1,V/V=8.75, reaction temperature 35℃, and reaction time 28 h, the highest yield of glutaraldehyde could reached 78% with a cyclopentene conversion of 99.99%.

在最佳工艺条件：n(H2O2)：n：n=2：0.04：1，V/V=8.75，反应温度35℃，反应时间28h下，环戊烯转化率达99.99%，戊二醛的收率最高可达78%。

Cyclopentene catalytic oxidation synthesis techniques which had good prospect were introduced with great emphasis,and positive significance of establishing large-scaled chemical plant of glutaraldehyde near the locality of raw material specially in north of China,was pointed out.

着重介绍了前景看好的环戊烯催化氧化合成工艺方法，指出在接近原料产地，特别是中国北方地区建立规模化戊二醛生产装置，具有积极的意义。

Under the optimum conditions of a cyclopentene amount of 1.0 mol, a molar ratio of cyclopentene to water of 0.25, a reaction temperature of 120 ℃, a reaction time of 4.0 h, a main catalyst dosage of 4.0 g and a cocatalyst dosage of 0.8 g, the yield of cyclopentanol reached 68.6%.

确定适宜的反应条件为：环戊烯1.0 mol，n﹕n=1﹕4，反应温度120 ℃，反应时间4.0 h，硅胶负载铌酸主催化剂用量4.0 g，三（3，6-二氧杂庚基）胺助催化剂0.8 g。在此反应条件下，环戊醇收率68.6%。

The heterogeneous W-HMS catalyst was in-situ prepared by immobilization of tungstic acid on hexagonal mesoporous silica. It was used to synthesize glutaraldehyde from cyclopentene.

采用原位合成法将W(上标 6+)引入六方介孔全硅分子筛骨架中，制备了应用于环戊烯催化氧化合成戊二醛反应的W-HMS催化剂。

Cyclopentanol was synthesized from cyclopentene and water through hydration reaction using HNb3O8·H2O/SiO2 as main catalyst and tris(dioxa-3,6-heptyl)amine (TDA-1) as cocatalyst.

在以硅胶负载铌酸为主催化剂、三（3，6-二氧杂庚基）胺为助催化剂的作用下，以环戊烯和水为原料，通过水合加成反应合成了环戊醇。

The commercial application of SPC01 catalyst for decomposition of tert-amylmethyl ether to produce isoamylene was reviewed.

介绍了SPC-01型催化剂在甲基叔戊基醚裂解生产异戊烯中的工业应用。

The commercial application of SPC-01 catalyst for decomposition of tert-amylmethyl etherto produce isoamylene was reviewed.

介绍了SPC-01型催化剂在甲基叔戊基醚裂解生产异戊烯中的工业应用。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。