戊醛

Cyclopentenopyridine(3) in yield of 65% was synthesized from acrolein ,cyclopentanone and NH3 by heterogeneous catalysis reaction through a fixed bed reactor.

以丙烯醛和环戊酮为原料，用固定床多相催化法合成了2，3-环戊烯并吡啶，收率65%，含量高于50%。

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。

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。

The factors such as pH value,pressure and time in pressurized hydrolysis of pentaerythrite solution and pentaerythrite mother liquor are studied.

本文研究了回收季戊四醇溶液或季戊四醇母液加压水解时pH值、压力和时间等因素对缩醛水解的影响。

The company mainly produces cinnamaldehyde, cinnamic acid, cinnamic alcohol, cinnamic nitriles,-bromo-cinnamic aldehyde, amyl cinnamic aldehyde, acetic acid Gui ester, cinnamic acid acetate, L-carnitine, coumarin , vitamin B1 and so on, one of cinnamon products only amounted to more than 100 kinds of quality and technical content are up to domestic advanced level, is expected to reach an annual output value of 10 billion yuan.

公司主要生产肉桂醛、肉桂酸、肉桂醇、肉桂腈、α-溴代肉桂醛、戊基肉桂醛、乙酸桂酯、肉桂酸乙脂、左旋肉碱、香豆素、维生素B1等，其中仅肉桂系列产品就达100多种，其质量及技术含量均达到国内先进水平，预计年产值可达10亿元人民币。

The company mainly produces benzaldehyde, cinnamic aldehyde, cinnamic acid, cinnamic alcohol, cinnamic nitriles,-bromo-cinnamic aldehyde, amyl cinnamic aldehyde, acetic acid Gui ester, cinnamic acid acetate, L-carnitine, coumarin, vitamin B1, etc., of which only cinnamon series reached more than 100 kinds of products, its quality and technical content are up to domestic advanced level, is expected to reach an annual output value of 10 billion yuan.

公司主要生产苯甲醛、肉桂醛、肉桂酸、肉桂醇、肉桂腈、α-溴代肉桂醛、戊基肉桂醛、乙酸桂酯、肉桂酸乙脂、左旋肉碱、香豆素、维生素B1等，其中仅肉桂系列产品就达100多种，其质量及技术含量均达到国内先进水平，预计年产值可达10亿元人民币。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。