Application of Calcium Peroxide to Gold Cyanide Leaching

1、

The recovered sodium cyanide and sodium cuprous cyanide can be directly returned to the plating tank.

再生回收的氰化钠和铜氰化钠可直接在镀槽内回用。

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2、

ⅳ was synthesized by reaction of ⅲ and cuprous cyanide in 78% yield.

最后Ⅲ和CuCN反应合成了液晶化合物Ⅳ，得率78%。

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3、

The influences of reactant ratio, reaction temperature, reaction time on substitution reaction were studied. The better reaction conditions were obtained: molar ratio of trityl chloride and cuprous cyanide was 1:1.3, reaction temperature was at 130 ℃, reaction time was 2.5h.

并通过对原料配比、反应温度和反应时间的研究，得到了较佳的合成工艺条件：三苯基氯甲烷与氰化亚铜的最佳摩尔比为1：1.3，反应温度为130℃，反应时间为2.5小时。

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4、

PU paint firming agent, PU Jiaozhanji: floating toluene two different cyanic acid resin ( TDI).

聚氨酯漆固化剂、聚氨酯胶粘剂：游离甲苯二异氰酸脂（TDI）。

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5、

Study on Quantum Chemistry of the Addition Reaction for Carbene with Cyanic Acid

卡宾与氢氰酸加成反应机理的量子化学研究

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6、

Safety Countermeasures for Chemical Production Equipment by Using Hydrogen Cyanic Acid as the Raw Materials

氢氰酸原料化工生产装置的安全对策

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7、

( CNOH) an unstable acid occurring mainly in the form of explosive salts and esters that is isomeric with cyanic acid.

（CNOH）一种不稳定的酸，主要以易爆炸的盐和酯的形式存在，是氰酸的同质异构体。

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8、

A white crystalline acid, C3N3 ( OH) 3, that decomposes with heating to form cyanic acid.

一种白色晶状酸，C3N3（OH）3，用加热作用分解而形成氰酸。

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9、

Results showed that sodium cyanate with 98.1% purity could be obtained in the medium of DMF, when the mole ratio of urea to anhydrous sodium carbonate was 2.5, the reaction temperature 120~ 140 ℃ and reaction time 8~ 10 h.

实验结果表明，在DMF反应介质中，当尿素与无水碳酸钠物质的量比为2.50，反应温度120~140℃，反应时间8~10h，可以制得纯度为98.1%的氰酸钠产物。

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10、

The preparation of high purity sodium cyanate by liquid-solid chemical reaction method

液固化学反应法制备高纯度氰酸钠

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11、

Hydantoin was synthesized from glycine and sodium cyanate, which was condensed with benzaldehyde to give monohydrated sodium phenylpyruvate in 67.0% of overall yield after alkaline hydrolysis.

由甘氨酸和氰酸钠反应合成海因，然后与苯甲醛缩合，经碱水解得到一水合苯丙酮酸钠，总收率为67.0%。

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12、

Sodium cyanate was prepared from reactants& urea and anhydrous sodium carbonate through liquid-solid chemical reaction method, in the solvent of N, N-dimethlformamide ( DMF).

使用液固化学反应法，以尿素和无水碳酸钠为原料，在N，N-二甲基甲酰胺（DMF）溶剂的反应介质中，制备了氰酸钠产品。

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13、

Process of synthesizing ACVA from cyan alcohol was studied, using sodium cyanide, levulinic acid, and A as starting materials.

对氰醇法合成ACVA的工艺进行了研究，该法采用氰化钠、果糖酸及物质A为原料。

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14、

All-Solid-State Continuous-Wave Doubly Resonant All-Intracavity Sum-Frequency Mixing Cyan Laser at 500.8 nm

全固态复合式内腔和频500.8nm连续波青光激光器

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15、

Adaptive digital beam forming algorithm and its realization in a CW radar

连续波体制自适应波束形成算法及实现

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16、

Digitized multiple frequency CW radar is a kind of new system radar.

数字化多频连续波测距雷达是一种新体制雷达。

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17、

Analysis and Study of a CW Radar System Modulated by Binary Phase Code

二进制相位编码调制连续波雷达系统的分析与研究

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18、

A New Method of IF Signal Sampling in Quasi CW Radar

一种准连续波雷达中频采样的新方法

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19、

Improvement on Raging Performance of Multiple Frequency CW Radar Based on Acceleration Compensation

基于加速度补偿提高多频连续波雷达测距性能

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20、

Acquisition System for Traffic Information Based on CW Radar

基于连续波雷达的交通信息采集系统研究

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