氯化铝

The result shows that: as far as the PAC in accordance with the GB standard is concerned, its specific base saturability has a greater effect on the grey water of paper industry.

结果表明，对于符合国家标准的聚合氯化铝，其不同的盐基度对造纸中段水的处理效果有较大的影响。

The effect of the base saturability, the dosage and the temperature of coagulation of PAC on the grey water of paper industry has been studied.

研究了聚合氯化铝的盐基度、用量及混凝温度对造纸中段水处理效果的影响。她面前那一滩血，已经凝结了起来，显出五光十色。

Key words: polyaluminium chloride; grey water of paper industry; base saturability

关键词］聚合氯化铝；造纸中段水；盐基度

A desulfurization method is proposed for the removal of sulfur compounds from FCC gasoline by alkylation reaction of thiophenic sulfur with olefins over acid catalysts, and the higher boiling sulfur-containing products are removed by fractional distillation.

选择以噻吩的甲基取代衍生物(包括 2-甲基噻吩、3-甲基噻吩及 2，5-二甲基噻吩)与异丁烯的烷基化反应为模型反应，考察了经三氯化铝气相固载法改性的 CT175 树脂催化剂催化噻吩的甲基取代衍生物与烯烃的烷基化反应性能。

ABSTRACT:Objective To investigate the effect of gross saponin from tribulus terrestris on spatial memory in rat model of alzheimer's disease.

目的 探讨蒺藜总皂苷对三氯化铝（AlCl3）致阿尔茨海默病大鼠空间记忆能力的影响。

The model of dementia was established by pretreatment with aluminium chlorid, PO.

目的 观察VE对AD大鼠海马β-APP表达的影响。方法使用三氯化铝诱导建立AD模型大鼠。

Discover , gather shell candy is it get chlorine to help and congealing the pharmaceutical aluminium together to regard as newly, dealing with the lake water of Kunming Lake in Beijing, the result indicates , it helps function of congealing to be obvious, turbid degree and getting rid of rate of the organic matter obviously improve.

最新发现，将壳聚糖作为聚合氯化铝的助凝剂，处理北京昆明湖的湖水，结果表明，其助凝作用明显，浊度及有机物的去除率明显提高。

Part I, the Friedel-Crafts acylation on DAA and methyl dehydroabietic acid was carried out with acetyl chloride, benzoyl chloride or phthalic anhydride as acylating regents, anh- ydrous aluminum chloride as catalyst and with different solvents to compare with, we have got t- hree new compounds.

第一部分，分别以脱氢松香酸和脱氢松香酸甲酯为底物，乙酰氯、苯甲酰氯、邻苯二甲酸酐为酰化试剂，无水三氯化铝作催化剂，采用不同的溶剂及反应条件进行傅克酰基化反应，得到3个新化合物。

The synthesis of alkylcyclohexylbenzoic acid: take the synthesis of ethylcyclohexylbenzoic acid as a typical example. With the AlCl3 as the catalyst, cis+trans acetylcyclohexylbenzene is synthesized from the reaction of acetyl chloride, cyclohexene and benzene.

烷基环己基苯甲酸的合成研究：主要研究了乙基环己基苯甲酸的合成，以乙酰氯、环己烯、苯为原料，三氯化铝为催化剂，合成乙酰基环己基苯，用水合肼、氢氧化钾、一缩二乙二醇经过高温加热还原羰基(Wolff-黄鸣龙还原)，将所得到的乙基环己基苯用乙酰氯进行傅克酰基化得到乙基环己基苯乙酮，所得中间体经过处理之后直接得到反式产物，将反式异构体的乙酰基氧化得到反式烷基环己基苯甲酸。

Under catalysis of AlCl3, trans-1-chloro-3-phenyl-1-propen-3-one was first prepared using benzoyl chloride and acetylene in CH2Cl2 at 20~25℃, which the yield is 7% higher than that in CCl4 at 40~45℃.

通过对其反应条件的研究，首次用苯甲酰氯和乙炔在三氯化铝作用下合成出反－3-苯基－1-氯－1-丙烯－3-酮；并发现用二氯甲烷作介质在20~25℃下的反应产率，比用四氯化碳作介质在40~45℃下的反应产率约高7%。

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。