氰化

NOVELTY - Alkali chemicals are added to the cyanogen group gold-containing liquid, to obtain an alkaline liquid. Zinc is added to the alkaline liquid, and the formed deposit is dissolved in aqua regia. A reducing agent is added to the deposit solution and a deposit is produced. Gold is then separated by heat-processing the deposit.

本发明的新颖性在于：将碱性化学物质添加到氰化含金液中，以获取碱液；将锌加入到碱液中，并将形成的沉积物溶解到王水中；然后在沉积溶液中加入一种还原剂，形成新的沉积物；最后通过加热处理沉积物来分离金。

The application of lead salt in the cyanide leaching operation can produce microcell in the surface of gold grain.

氰化作业中应用铅盐可在金粒表面形成微电池，对于纯金颗粒这原电池可促进金的溶解。

Because of higher heavy metals concentration in leaching solution,the displacement rate of gold and silver with zinc powder is lower.

遂昌金矿采用氰化法处理高铜铅锌金精矿，由于浸出液中重金属含量偏高，在用锌粉置换金和银时置换率偏低，最低时金置换率只有12.66%。

Under these conditions, electrons form the oxidation of NADH could have flowed through the respiratory chain, despite the blocking of the terminal oxidases, and reduce hexacyanoferrate.

在这种情况下，NADH氧化产生的电子将会流经呼吸链，不受末端氧化酶的阻挡，从而减少铁氰化三。

In part one, a new method for the synthesis of nitriles by phase transfer catalytic reaction is introduced.

选择了一些在相应的反应温度下为液体状态的脂肪族和活泼的芳香族卤代物或酯为氰化反应底物，进行了无溶剂条件下的腈化物的合成。

Silver electroplating of beryllium bronze with thiosulfate was used to replace conventional toxic silver plating with cyanide in accordance of the characteristics of the beryllium bronze .

从分析铍青铜材料的特殊性入手，针对性地采取有效的前处理工艺措施，以硫代硫酸盐镀银取代传统的有毒的氰化镀银，分析了银镀层变色的原因并提出了相应的抗变色处理措施。

The formulation and operation conditions of cyanide silver plating were introduced, and a blackening agent formulation with jet black finish on silver surface and its post-treatment process were presented.

介绍了氰化镀银配方及操作条件，给出了一种银上着色深的黑化剂配方及其后处理工艺。

The chelating resin contaning sulfur and nitrogen was firstly used to adsorb gold and silver in alkaine cyanide solution and gold ore cyanide leaching solution.

以含硫氮的螯合树脂为吸附材料，首次将其应用于碱性氰化溶液及金矿浸出液中金、银的分离与富集。

The parameters of square-wave plating from cyanide silver bath are selected by Hull cell test, and the optimum pulse duration, duty ratio and average corrent are estimated through combined experiments.

于最佳控制条件下，从氰化镀银溶液中电沉积的镀层，就外观、微观形貌和抗硫能力而言，都优于从同一镀液中用直流电沉积的银层。

Comprehensive recovery of gold ; silver ; copper and lead ; oxidation leaching copper in ammonia solution ; leaching lead with nitric acid ; leaching gold and silver with cyanide

中国科学院化工冶金研究所；黄金， GOLD ，编辑部邮箱 1997年 05期综合回收金、银、铜、铅；氧化氨浸脱铜；硝酸脱铅；氰化提取金银

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。