查询词典 ether

Production capabale of 2-phenoxy ethanol phenyl cellosolve and propylene glycol phenylate reach 10000 tons per year, it will become the biggest production base of alcoho ether in Asia.become a biggest production base of alcoholic and ether in Asia.

部分产品直接出口，创汇超百万美元。乙二醇苯醚，丙二醇苯醚年生产能力达到10000吨，成为亚洲最大的醇醚生产基地。

Now, a convenient, efficient pinacol coupling of aldehydes mediated by zinc in good yields has been carried out in ammonia water in the presence of a little crown ether. Adding a small amount of crown ether was highly effective to enhance the yields of pinacol from 63% to 84%.

本文报道一种简便、有效的水相呐偶合反应，它是在含有少量冠醚的稀氨水溶液中，使用锌粉促进醛基化合物进行水相呐偶合反应，其中加入少量的冠醚有助于提高反应的产率，呐醇产率由63%提高到84%。

The solid-liquid reaction method was used for the preparation of HPLC aryl-bonded silica gel stationary phases, including 3, 5-dinitrobenzyl, quinolinyl ether and 1, 1'-di(2-naphthol) ether bonded silica gel stationary phases by using N-(β-aminoethy1)-γ-aminopropylmethyldimethoxy silane and 3-glyci-doxypropyl trimethoxylsilane as coupling reagents, respectively.

采用固液相连续反应，以N-－γ-氨丙基甲基二甲氧基硅烷和γ-丙基三甲氧基硅烷为偶联剂，分别制备了二硝基苯甲酰胺基、喹啉醚基和联萘酚醚基三种芳基键合硅胶固定相。

The result shows that: the extraction of petroleum ether, polysaccharide and sodium copper chlorophyllin from banana leaves perform higher spumescence ability and foam stability. The critical concentration form pastern namely CMC and the surface tension in this concentration are 1.0 g/l (34.295 mN/m), 1.0 g/l (42.398 mN/m), 3.0 g/l (40.123 mN/m) respectively, which the value is close or excess the reference samples. The emulsify capability of the extraction of petroleum ether is the best in these active ingredients, and close to the emulsify capability of Tween-80. The emulsify capability of polysaccharide and sodium copper chlorophyllin from banana leaves are follow then.

试验结果表明：香蕉叶石油醚抽出物、叶多糖和叶绿素铜钠盐具有良好的起泡性和稳泡性；其临界胶束浓度CMC值和其该浓度下的表面张力分别为：1.0g/l（34.295 mN/m），1.0g/l（42.398 mN/m），3.0g/l（40.123 mN/m），已经接近或超过参照物的表面活性；香蕉叶石油醚抽出物的乳化能力最强，乳化性能已接近乳化剂吐温-80，其次为叶多糖和叶绿素铜钠盐。

The result showed that the thermal decomposition temperature of chlorinated paraffin reached 133℃ by adding 0.3% composite stabilizer in which the weight percentages of ethylene glycol diglycidyl ether, methyl stannic, triphenyl phosphate, exoxidized soybean oil were 72%, 3%, 10%, 15%, respectively. It is 15℃ more than that of using pure ethylene glycol diglycidyl ether.

结果表明：当复合稳定剂中乙二醇二缩水甘油醚、甲基锡、亚磷酸三苯酯、环氧大豆油的质量分数分别为72%，3%，10%，15%，复合稳定剂的添加量为氯化石蜡的0.3%时，氯化石蜡的热分解温度为133℃，比单独使用乙二醇二缩水甘油醚提高了15℃，热稳定效果较好。

Three types of dyes derived from crown ether benzotellurazole (including telluracarbocyanine, polymethine styryl dye and merocyanine dye) are formed by the methods analogous to non-crown ether dyes.

本文系统研究了冠醚苯并碲唑的各种合成方法，探讨了杂环的季铵化反应，并进一步制备了对称冠醚碲碳菁及冠醚苯并碲唑衍生的多甲川苯乙烯菁、部花青染料。

Ammonium tristyrylphenol polyoxyethylene ether sulfate was synthesized from tristyrylphenol polyoxyethy-lene ether and sulfamic acid using urea as catalyst.

以三苯乙烯基苯酚聚氧乙烯醚和氨基磺酸为原料，合成了三苯乙烯基苯酚聚氧乙烯醚硫酸酯铵盐。

Waste oil category: Waste oil, waste hydraulic oil, waste oil, waste oil injection, waste kerosene, waste of white mineral oil, white waste oil, waste oil sparks, the repeal of toluene, waste cutting oil, gear oil, lubricants, batteries oil, spindle oil, zorra, oil, turpentine oil, solvent oil, gear oil, oil rails; waste chemical categories: one, the repeal of toluene, xylene waste, spent 2 pure benzene, acetone waste, waste Ding ketone, cyclohexanone 3 waste, waste dichloromethane, dichloroethane waste, waste Dichloropropane 4, solvent categories: soluble oil 6 #, 120 # dissolving agents, dissolving agents 200 # 5, trichloro ethylene, dichloromethane, trichloroethane; tetrachlorethylene, trichloromethane 6, the repeal of methanol, ethanol, waste, waste alcohol, isopropyl alcohol waste 7, the repeal of ethylene glycol, diethylene glycol waste, spent three 8 glycol, waste butyl acetate, ethyl acetate wastewater, waste acetate 9, the repeal of ethyl ether, acetonitrile waste, waste petroleum ether 10, cleaning categories: cleaning agent, washing machine water, days that water; wash board water,×oil wastewater liquid 11, the supply of tires category: special supply of fuel oil, non-standard oil, burner oil, waste oil and other refined crude oil.

废油类：废机油，废液压油，废柴油，废注塑机油，废煤油，废白矿油，废白电油，废火花机油，废甲苯，废切削油，齿轮油，润滑油，废电池机油，锭子油，索拉油，松节油，溶剂油，齿轮油，导轨油等；废化工类：1、废甲苯、废二甲苯、废纯苯2、废丙酮、废丁酮、废环已酮3、废二氯甲烷、废二氯乙烷、废二氯丙烷4、溶剂类： 6#溶油剂， 120#溶油剂， 200#溶油剂5、三氯乙烯，二氯甲烷，三氯乙烷；四氯乙烯，三氯甲烷6、废甲醇、废乙醇、废丁醇、废异丙醇7、废乙二醇、废二甘醇、废三甘醇8、废醋酸丁酯、废醋酸乙酯、废醋酸甲酯9、废乙醚、废乙腈、废石油醚10、清洗类：清洗剂，洗机水，天那水；洗板水，去渍油等废液废水11、废轮胎类供应：特价供应燃料油，非标油，烧火油，废油提练的原油等。

Five species of solvents, namely, acetone, ethyl acetate, ether, trichloromethane and petroleum ether were selected to obtain extracts from Portulaca oleracea L. with microwave assistance and the biological activities of each extract was tested against Plutella xylostella L.

在微波加热条件下，以丙酮、乙酸乙酯、乙醚、三氯甲烷和石油醚为溶剂对马齿苋干粉进行提取，试验了各溶剂提取物对小菜蛾幼虫的触杀、胃毒及拒食活性，确定了石油醚提取物触杀作用的LD50。

Poly(aryl ether sulfone ether ketone ketone) with side carboxyl attached to the main chain was synthesized by Friedel-Crafts polycondensation of 4,4′-diphenyoxyl diphenyl sulfone with trimellitic anhydride chloride.

以4，4′-二苯氧基二苯砜，偏苯三酸酐酰氯为单体通过Friedel-Crafts亲电反应合成了主链芳环上带有羧基侧基的聚芳醚砜醚酮酮树脂。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。