查询词典 phenol-phthalein

Study on Liquefaction and Resinification of Plantation Wood by Phenol Ⅰ.

篇名 人工林木材的苯酚液化及树脂化研究Ⅰ。

To broaden desert shrub new utilizing fields, accelerate desert shrub developing to the direction of high added-value and high benefit, the paper studied on the liquefaction of Salix, Caragana and Poplar in the presence of Phenol under sulfuric acid catalysis. The optimum processing parameters for Salix, Caragana and Poplar liquefaction and resinification were investigated. The effect of molar ratio of formaldehyde to liquefied products and NaOH to liquefied products on the character and glue strength of liquefied products resin was studied.

摘 要：为了开辟沙生灌木资源新的应用领域，促使沙生灌木资源的利用向高附加值、高效益的方向发展，本文以苯酚作液化剂，以稀硫酸作催化剂对沙柳、柠条和杨木进行液化实验，分析了反应温度、液比、催化剂用量及液化时间对液化反应的影响；并研究了沙柳、柠条和杨木液化产物树脂化合成工艺和配方，分析了不同的甲醛与液化产物摩尔比以及氢氧化钠与液化产物摩尔比对沙柳、柠条和杨木液化产物树脂的各项性能的影响。

A new method for synthesis of rosolic acid is introduced in this thesis: under solvent-free conditions, grinding the mixture containing phenol, oxalic acid and copper salt catalyst and then irradiated by MW to produce rosolic acid .

本文主要介绍了一种新的制取玫红酸的方法：在无溶剂的条件下，通过研磨将苯酚，草酸和催化剂混合均匀，再由微波作用，直接合成玫红酸。

Through catalytic oxidation of saligenin aqueous with the non - valuable metal catalyst HLO - 509 prepared by the author, the yield of salicyaldehyde reaches 73%~ 76% if calculated by phenol.

在研制的非贵金属催化剂HLO－509上进行了水杨醇的液相催化氧化制水杨醛实验并取得进展。

What the wastewater contain are sodium sulphate, phenol, sebacic acid and other fatty acids.

这样的废水直接排放，不仅污染环境，而且也是资源的浪费。

Sebacic acid, decanedioic acidOf, relating to, containing, or derived from phenol .

苯酚的苯酚的，有关苯酚的，含有苯酚的，或从苯酚中提炼的

The influences of ratio of liquid to solid, concentration of ethanol in solvent and leaching time on recovery of phenol and caustic soda and yield of fatty acid and sebacic acid were investigated.

在癸二酸传统生产工艺中的裂解工序后增加浸取工序回收游离碱和苯酚，通过正交试验，考察了液固比、浸取剂浓度和浸取时间对氢氧化钠和苯酚回收及对脂肪酸和癸二酸产率的影响，确定最佳回收工艺条件为：液固比2.5，浸取剂为95％的乙醇水溶液，浸取时间为15min。

Methods: By phenol-vitriolic coloring, determining its content by spectrophotography and analyzing its composition by PC method.

经苯酚－硫酸显色，用分光光度法测定多糖含量；用Pc法检识多糖成分。

Di-phenol A is a main raw material for producing synthetic materials such as poly-carbonate, epoxy resin and poly sulphone.

项目介绍：双酚A是生产重要的合成材料聚碳酸酯，环氧树脂及聚砜的主要原料。

Huapai products:pchlorophenol,ochlorophenol,2,4dichlorophenol,2,6dichlorophenol,2,4,5trichlorophenol,2,4,6trichlorophenol,4chloro2benzyl phenol,pbromophenol,2,4,6tribromophenol,1chloro4(1,1dimethyl ethyl) benzene ether,3bromoanisole,mbromofluorobenzene,2tetra hydrofuran,αbromo4chloro acetophenone,αbromo4methoxy acetophenone,4chloro benzophenone,4chloro2methylaniline,n(2hydroxyethyl)ethane diamine; n(2aminoethyl)ethanolamine,2,3dibromopropionyl chloride,4bromo benzene sulphonyl chloride,terephthaloyl chloride,isophthaloyl chloride,nchlorosuccinimide,nbromosuccinimide,pchloranil;tetrachloro1,4benzoquinone,5chloroisatin.

华派公司产品：对氯苯酚，邻氯苯酚，2，4二氯苯酚，2，6二氯苯酚，2，4，5三氯苯酚，2，4，6三氯苯酚，4氯2苄基苯酚，对溴苯酚，2，4，6三溴苯酚，对氯苯基叔丁基醚，间溴苯甲醚，间溴氟苯，α溴甲基四氢呋喃，α溴代4氯苯乙酮，α溴4甲氧基苯乙酮，4氯二苯甲酮，4氯2甲基苯胺，N(2羟乙基)乙二胺， 2，3二溴丙酰氯，对溴苯磺酰氯，对苯二甲酰氯，间苯二甲酰氯，N氯代丁二酰亚胺，N溴代丁二酰亚胺，四氯苯醌，5氯靛红。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。