Study on catalyst properties for toluene ethylation

1、

Influence of some parameters on the ethylation of toluene over modified zeolites

改质沸石上甲苯乙基化过程中若干影响因素的考察

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2、

Ethylation selectivity, was affected by strength of surface acid sites, location of acid sites and pore structure.

乙基化的选择性则与催化剂的表面酸强度、酸性中心位置和孔道结构等因素有关。

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3、

The effect of toluene on ethylation of cellulose was investigated.

本文研究了甲苯在纤维素乙基化过程中的影响。

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4、

Results showed it was possible to recovery scheelite from tailings of molybdenum flotation in Luanchuan.

研究表明,采用常温浮选、精选加温的工艺流程从栾川浮钼尾矿中回收白钨已成为可能.

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5、

Variation rule of Slag amount during scheelite direct alloying is worked out by theoretical calculation.

通过理论计算分析了白钨矿直接合金化过程中的渣量变化规律.

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6、

Ultravioletspectrumspectrum and flotation solution chemistry were studied of scheelite and benzoylhydroxamic acid.

研究了天青石精矿复分解法制备碳酸锶的工艺及溶液化学作用机理.

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7、

The cost is about sixteen thousand dollars for the one hundred days semester.

百日学期的费用大概为一万六千美元.

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8、

A fur cap with earflaps is available for cold weather.

带护耳的棉帽可在冬季使用.

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9、

Objective : To observe the efficacy of MEBO in treating residual wounds after skin grafting.

目的: 观察MEBO治疗烧伤植皮术后残余创面疗效.

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10、

Objective: To treat chronic dacryocystitis by rebuild the lacrimal passage with skin grafting and dacryocystorhinostomy.

目的: 研究用泪囊鼻腔造口植皮术重建泪道,以治疗慢性泪囊炎.

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11、

This treating process is quite different from dry therapy with escharetomy and skin grafting.

这与传统的干燥疗法以及切(削)痂植皮疗法,有着本质的差别.

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12、

Oh! This one is skin grafting!

噢! 这是一盘关于皮肤移植的!

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13、

The statistical analysis by response surface methodology also shows that choline chloride and N, N-dimethyl acetamide exhibited a positive cooperative effect on mildiomycin biosynthesis.

响应曲面分析结果进一步证实了氯化胆碱和N，N-二甲基乙酰胺对米多霉素生物合成具有协同促进作用。

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14、

A two-step reaction of macroporous polyvinyl chloride resin with ethylenediamine and acetic anhydride gave the spherical polyvinyl acetamide chelate resin.

本文以大孔聚氯乙烯树脂、乙二胺和乙酐为原料，两步反应合成聚乙烯乙酰胺螫合树脂。

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15、

Synthesis of N-( 2-methoxy-5-nitrophenyl) Acetamide

N-（2-甲氧基-5-硝基苯基）乙酰胺的合成

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16、

Thermodynamics Study on Extraction of pd ( ii) with n, n-di ( 1-methyl heptyl) acetamide

N，N（二甲庚基）乙酰胺萃取钯的热力学

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17、

Study on the equilibrium and coordination compound of iron(ⅲ) extraction with n, n-di ( 1-methylheptyl) acetamide in hydrochloric acid

N，N-二（1-甲基庚基）乙酰胺在盐酸介质中对铁（Ⅲ）的萃取平衡及其配合物的研究

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18、

At present, the demand of N, N-dimethyl acetamide consumption from the domestic acrylic fiber industry and spandex industry accounts for the most part.

目前，国内的腈纶和氨纶行业对N，N-二甲基乙酰胺的消耗需求占主要部分。

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19、

N-vinyl-N-methyl-acetamide was synthesized from N-methyl acetamide and vinyl acetate with potassium hydroxide as catalyst.

以N-甲基乙酰胺、醋酸乙烯酯为原料，以氢氧化钾为催化剂合成了N-乙烯基-N-甲基乙酰胺。

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20、

Kinetic studies on the solvent extraction of phenol with n, n-di ( 1-methyl-heptyl)-acetamide

N，N-二（1-甲基-庚基）乙酰胺萃取苯酚的动力学研究

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