1、

The experimental results show that 2-ethyl hexyl thioacetate is a good extractant for palladium and that N, N-di ( sec-octyl) 2-ethyl hexyl thioacetamide, as well as di ( 2-ethyl hexyl) sulfide, is an excellent extractant for gold.

实验结果表明:2乙基已硫基乙酸乙酯对钯具有较好的萃取性能,N,N二仲辛基2乙基已硫基乙酰胺与二(2乙基已基)硫醚一样是金的优良萃取剂。

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2、

N-ethyl-o-isopropyl thioamide that is a floating agent of heavy metal mineral which is prepared with xanthate and chloroacetic acid as raw materials.

以黄药、氯乙酸等为原料合成重金属矿物浮选剂N-乙基-O-异丙基硫代碳酰胺。

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3、

Firstly, the synthetic technics of O-isopropyl-N-ethyl thionocarbamate was worked over.

首先研究了O-异丙基-N-乙基硫氨酯的合成工艺。

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4、

Ethyl lactate was chlorinated by thionyl chloride and pyridine.

以乳酸乙酯为原料,在吡啶作用下与二氯亚砜进行氯代。

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5、

Synthesis and Biological Activity of O-Ethyl-N-Alkylphosphoro ( thioureido) thioates

O-乙基-N-烷基(取代硫脲基)硫代磷酰胺酯的合成及其生物活性

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6、

But when it is of butyl or ethyl type, the collector containing ureido radical has a collecting power much lower than that of the collector containing thioureido radical.

烃基为己基时2种捕收剂的捕收能力相近,但烃基为丁基和乙基时含脲基者的捕收能力远低于含硫脲基者。

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7、

Selected 75% ethyl alcohol as the extraction solvent, the effects of extraction temperature, time and material-solution ratio to extraction conditions were investigated by orthogonal design experiment.

选用75%乙醇作提取溶剂,采用正交设计试验,研究提取温度、提取时间和料液比对黑果枸杞色素提取条件的影响。

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8、

Determination of Ruthenium in the Ruthenium-Tin Chloride-Ethyl Violet System

在聚乙烯醇-124存在下钌-二氯化锡-乙基紫离子缔合体系测定钌的研究

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9、

Synthesis of bis ( β-alkoxycarbonyl ethyl) tin dibromide

双(β-烷氧羰乙基)二澳化锡的合成

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10、

Synthesis of Ethyl Acetate Catalyzed by Tin Tetrachloride

四氯化锡催化合成乙酸乙酯

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11、

Experimental Study on Antitumor Effect of Gallic Acid and Gallic ethyl in Vitro

余甘子叶提取物没食子酸和没食子酸乙酯的体外抗肿瘤实验研究

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12、

Catalytic Ammoniation of Methyl Ethyl Ketone Using New Ni-B Alloy Catalysts Supported on Modified Palygorskite

新型改性凹凸棒土负载的Ni-B合金催化剂在甲乙酮氨化中催化性能的研究

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13、

The activation energies of isopropyl, secondary butyl and 1-phenyl ethyl alcohols have been experimentally determined to be 21.0, 20.9 and 16.9 Kcal/ mole respectively.

实验得到的异丙醇,2-丁醇和1-苯乙醇脱氢的活化能分别为21.0,20.9和16.9千卡/克分子。

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14、

Experimental study on the micronization of ethyl-cellulose by gas antisolvent process

气体抗溶剂法制备乙基纤维素微球过程的实验研究

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15、

Extraction tests were made with Grade ⅱ a activated silica gel. The ratio of the sample to the adsorbent was 1:30. In the two eluants, the ratio of ethyl acetate or acetone to benzene depended on the elution order.

提制试验是用Ⅱa级活性硅胶进行的,样品与硅胶之比为1:30。在两种洗脱剂系统中,乙酸乙酯或丙酮对苯的比例根据试验的洗脱顺序而定。

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16、

Study on the atom transfer radical polymerization of n, n-( dimethylamino) ethyl methacrylate

N,N-二甲氨基甲基丙烯酸乙酯的原子转移自由基聚合

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17、

Trimethylene bis ( N-ethyl-N-phenyldithiocarbamate) was used as the ionophore in solvent polymeric membrane. The ionophore-metal ion complex formation constants in solvent polymeric membrane were determined directly by potentiometry with a two-layer membrane electrode.

以合成的双(N-乙基-N-苯基氨基二硫代甲酸)1,3-丙二醇酯为载体,采用双层膜电位法直接测定了溶剂聚合物膜中载体与金属离子的络合物生成常数。

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18、

Data Processing of Reaction Rate Coefficient in Ethyl Acetate Saponification

乙酸乙酯皂化反应速率系数测定数据处理方法

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19、

The Dragon Tower Asymmetric Autocatalysis The ethyl acetate is synthesized in reaction distillation column with acid natural zeolite as catalyst.

以酸性天然沸石为催化剂,在催化反应精馏塔中进行了合成乙酸乙酯的研究。

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20、

Objective: Screening test of a series of amino acid methyl ester and ethyl ester compounds in order to offer material for synthesis of Schiff s base.

前言:目的:设计合成一系列氨基酸酯为合成席夫碱提供原料。

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