A selective and mild PS-DIB/ionic-liquid immobilized TEMPO catalytic oxidation procedure of alcohols to the corresponding aldehydes and ketones in ionic liquid BF4 at room temperature was developed. The oxidant PS-DIB was prepared via Iodation and acetylation of polystyrene resin. For the preparation of the ionic-liquid immobilized TEMPO catalyst, 4-(2,2,6,6-Tetramethyl-1-oxyl-4-piperidoxyl)butyl bromide was first synthesized from 2,2,6,6-tetramethyl-piperidin-4-ol-N-oxyl and 1,4-dibromobutane.

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For the equilibrium system of chloroaluminate ionic liquids-heptane-aromatics,the aromatics distribution coefficients and the selectivities of ionic liquids for aromatics/heptane were influenced by the structure of ionic liquids,structure of aromatics and temperature.

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The effects of protein on calcium oxalate crystal growth was tested using a seeded crystallization technique at various ionic strength and pH. The results indicated that in the range of physiological ionic strength, the higher the ionic strength, the lower the inhibitory activity of urinary prothrombin fragment〓 and Tamm-Horfall mucoprotein .

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As hydroxyl and sulfonyl dual-functionalized zwitterionic salts and ionic liquids, they may be used for synthesizing other functionalized ionic liquids or ionic liquid-polymer.

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The experimental results showed that using ionic liquid Et3NHCl-2AlCl3 under the conditions of an extraction temperature of 40℃, an extraction time of 40 min and an agent/oil ratio of 0.02, the sulfur removal rate was more than 90%. The ionic liquids could be used repeatedly for 4 times and the used ionic liquids could be regenerated by vacuum distillation, about 52.34% of the thiophen was recovered during regeneration.

實驗結(jié)果表明口爆吞精视频，選用無水AlCl3與Et3NHCl的摩爾比為2.0的離子液體進行萃取脫硫?qū)嶒炛形脑谙咭灰常斴腿r間為40 min人人操人人看人人摸人人干、溫度為40 ℃、劑油體積比為0.02時欧美日韩二，脫硫率可達到90%以上操嫖欧美日韩美女视频；離子液體不僅可以重復使用4次，而且還可以通過減壓蒸餾的方法進行再生91大片，在再生過程中可回收約52.34%的噻吩成人无码视频直入观看免费网站大全。

Synthesis of isopropyl chloroacetate catalyzed by acidic ionic liquids was studied,including influences of different ionic liquids,reaction temperature,reaction time and quantity of ionic liquid.

研究了功能化酸性離子液體催化合成氯乙酸異丙酯的反應，考察了不同離子液體黄色网站大全免费在线观看、反應溫度人人操人人看操女人B、反應時間和離子液體與反應物物質(zhì)的量比等對反應的影響。

The application of ionic liquids aqueous solutions as solvents in the microwave-assisted extraction technique was developed for the extraction of lycorine, lycoramine and galanthamine from Lycoris. Effects of different ionic liquids and the concentration of selected ionic liquids on MAE were investigated, and tradition organic solvent and extraction techniques were compared.

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In order to solve the problems of complex cellulose production process and serious pollution, The paper investigated the solubility of cotton stalk cellulose in ionic liquid N-ethyl pyridinium bromide. The structural differences between cotton stalk cellulose and cellulose regenerated from the ionic liquid were investigated using infrared spectroscopy and chemical analysis. Recovery ratio of ionic liquids was also studied.

為解決纖維素生產(chǎn)加工過程復雜且污染嚴重問題，試驗探討了棉稈纖維素在離子液體溴代N-乙基吡啶中的溶解性能俄国精品一区二区在线观看，采用紅外光譜等手段對棉稈纖維素在離子液體中溶解和再生前后的結(jié)構(gòu)變化進行了分析免费狼友网址?，并探討了離子液體的回收。

To economize cost of S03H-functionalized ionic liquids,extend their range of application in chemistry reaction,fifteen of ionic liquids have been synthesized by using methylimidazole,tri-alkylamine,pyridine with industrial materials 1,4-butane-sultone and 1,3-propane sultone as source in this paper.The ionic liquids were synthesized by tri-alkylamine have not been reported and yields are higher than 98%.

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