查询词典 chlorination

Advances on molecule-bolt selective monochlorination and reaction-separation coupling techniques for chlorination reaction in the world were introduced, and the control technology which achieved high selectivity was showed.

结合氯化反应的工程应用，对有机氯化反应过程安全事故的形成原因进行了初步分析，并提出了反应过程安全控制的技术方法。

The chlorination equilibrium of nickelous oxide has been investigated using the circulation method within the temperature range 666—928°K from both sides.

用循环法在666—928°K范围内，从两个方向研究了氧化亚镍的氯化反应平衡。

The final product Rimonbant was then obtained in 64% yield via chlorination of the acid with oxalyl chloride followed by treatment of the resultant acyl chloride with 1-aminoperidine.

氯与1-氨啶在三乙胺存在下缩合生成目标产物利莫那班，产率64%。

The final product Rimonbant was then obtained in 64% yield via chlorination of the acid with oxalyl chloride followed by treatment of the resultant acyl chloride with 1-aminoperidine.

酰氯与1-氨哌啶在三乙胺存在下缩合生成目标产物利莫那班，产率64%。

Cefixime open side chain acid was prepared by oximation,etherification,chlorination,ester decomposition using t-butyl acetoacetate as starting material.

以乙酰乙酸叔丁酯为原料，经过肟化、醚化、氯代酯解反应合成了头孢克肟开环侧链酸。

Chloro-5,12-naphthacenequinone was synthesized from 2-(1-hydroxy-2-naphthyl)carbonylbenzoic acid by chlorination reaction using a mixture of phosphorus pentachloride and phosphorus oxychloride as a chlorating agent and then by ring-closing reaction using sulfuric acid as a dehydrating agent.

以2-[(1-羟基-2-萘基)羰基]苯甲酸为原料、五氯化磷/三氯氧磷为氯化剂进行氯化反应，然后用浓硫酸脱水环化，合成了6-氯-5，12-萘并萘醌，优化了反应条件，总收率达68.2%。

A method using α methylstyrene as raw material to prepare β methylene phenethyl alcohol,a new rose flavor ,by chlorination,esterification and saponification was studied.

对α 甲基苯乙烯经氯代、酯化、皂化合成新型玫瑰香料β亚甲基苯乙醇的方法进行了研究，选择PTC1作为相转移催化剂，当m∶m (NaAc·3H2 O)∶m (PTC1 )=1 。0 0 0∶0 30 0∶0 0 2 4时，80℃下反应 6h ，产率为 67 3%。

Relationship between water quality before disinfection and acute toxicity of disinfected wastewater during chlorination and dechlorination was studied using Photobacterium bioassay.

摘 要：利用发光细菌法对氯化/脱氯消毒过程中污水水质与消毒后污水急性毒性之间的关系进行了研究。

Methods 4-Methylacetophenone was used as starting material to give 2-(4-methylphenyl) propionitrile via reduction, chlorination and cyanation. 2-(4-Bromomethylpheny1) propionic acid obtained by hydrolysis and bromination of compound Ⅲ could further provided loxoprofen sodium through four steps.

以4-甲基苯乙酮为原料，经还原、氯化、氰化得到2-（4-甲基）苯基丙腈，然后经水解、溴化得到关键中间体2-（4-溴甲基）苯基丙酸，该中间体再经过4步反应可制得洛索洛芬钠。

Pyridazine was prepared by hydrogenolysis of 3,6-dichloro pyridazine obtained via chlorination of 3,6- pyridazine diol with phosphorus oxychloride.

以顺丁烯二酸酐与盐酸肼为原料经缩合成环反应生成顺丁烯二酰肼，再用三氯氧磷氯化合成3，6-二氯哒嗪，最后经催化加氢制得标题化合物哒嗪。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失